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Not a bad motherboard or PSU. Still won't power up

Q: Not a bad motherboard or PSU. Still won't power up

I m a tech with years of IT experience PSU. power bad Still or motherboard a won't up Not and I ve built my fair share of computers over the years I have a puzzling one I cannot get to Not a bad motherboard or PSU. Still won't power up the bottom of I m afraid I cannot for the life of me Not a bad motherboard or PSU. Still won't power up get this computer to power on Here is a list of things I ve tried and or eliminated The first thing to happen was quite strange The computer would start when I first got it it was a used system but only after a few presses of the power button I don t ever remember it powering up on the first press of the power button It s an Intel DX BT Extreme Series motherboard with a bit Intel CPU in it GB of RAM FYI the motherboard has a aux power on off switch ON the motherboard itself used for testing at the labs - the manual recommends using the front panel switch however obviously Current state the computer will not turn on at all There are two LED s by the CPU that are for indicating a voltage regulator overheating and the CPU overheating When I hit the power switch the VR Regulator LED blinks quickly once and that is all Ok here goes - Tested PSU came back fine Decided to use that PSU in another system to double check would not boot up in the nd system I replaced the PSU with a good one I know that works of even higher wattage Still doesn t boot up - Tried using onboard power switch same result Tried using the reset switch as a power switch same result so the switches are likely OK I even removed all front panel switch connectors and tried to jumper the two power pins using a flathead screwdriver Still doesn t boot up no power only a solid green light on the mobo when power is plugged in - Reseated all RAM sticks although a system should still POST if a stick is bad as well as CPU same result - Replaced RAM with RAM I know works Same clock speed compatible with this motherboard Again if it s RAM it shouldn t prevent the fans from spinning - Replaced CPU with a good one same socket factor Still no powering up - Removed all other hardware USB cables video card speaker connector drives etc same result - Also replaced the fan with a non-OEM intel fan that has a higher RPM and draws more air - Tried replacing thermal paste on the premise that since the VR reg is showing it s overheating hopefully this would do something - Replaced CMOS battery Same result After testing just about everything I came to the conclusion that it must be a bad motherboard What Yeah a faulty Intel motherboard I ve never heard of such a thing So I RMA ed the board and got the new on in the mail How puzzled was I when the same exact thing happened Words can t describe Solid green light when power cord is plugged in VR light flashes BTW the green light is a V Standby Power Indicator Now in the manaul it states that these lights CPU amp VR LED s will flash when they re indicating a fault not blink once So I tried all the steps again nothing I have replaced every piece of hardware I can think of with good hardware and am still getting the same result - a flashing VR regulator LED Intel has no support for this and the people I ve spoken with at tech support at Intel are stumped My only thought left is a grounding issue which would seem strange to me since the problem gradually got worse that is taking more presses of the power button to power on then eventually no response I am going to switch cases and see if that s the problem If that fails I am out of troubleshooting steps - I ve literally replaced EVERYTHING inside and outside the computer Again to reiterate these are the things that have remained constant in both motherboards original and RMA ed Solid green V Standby Power Indicator Flash of the VR LED when applying power I have replaced every component with the exception of the case and the standouts which I believe have grounding rings on the threads Any ideas nbsp

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Preferred Solution: Not a bad motherboard or PSU. Still won't power up

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A: Not a bad motherboard or PSU. Still won't power up

Speaking of shorts, try pulling the motherboard out of the case. Place it on a non-static, non-conducting surface and leaving in the CPU, heatsink/fan, only hook up the PSU, RAM and graphics card, see if will post.

http://www.techspot.com/community/topics/not-a-bad-motherboard-or-psu-still-wont-power-up.151315/
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I could use some creative customer service here. My M3800 shipped with the known power-on motherboard defect. It was replaced at no charge, which was very nice. However, the replacement (2nd motherboard!) is now having the same intermittent dead / no power problem.
To get the computer running, I have to remove the case (12 screws) and un-plug the internal battery to 're-set' the electrical fault. After I put it back together, the computer starts normally. This is not very convenient, especially when meeting with new clients.
The problem is that I am being told I am outside the 3-month repair warranty. I think this stinks! It's a known issue and I would like someone at Dell to step up make my expensive computer work normally all of he time.
Yes, I have run every diagnostic known to man and the internet.

http://en.community.dell.com/support-forums/laptop/f/3518/t/19986464
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Hi, I just bought an HP pavilion e9300 a few week ago. And I am going to upgrade the power supply so that I can get a new graphic card--ATI 4870 which requires at least 500 watt power supply. My current computer is shipped with a 350 watt power supply. I will probably get a 650 watt considering the 70% effeciency of power supply.
However, when I talked to an HP technician, he insisted that I could go for a power supply with no more 450 watt. Because the system I just got has a motherboard which has a max power limit 450 watt. He said if I go beyond that, the motherboard will burn out.
So what shall I do? I really want to get ATI 4870 work well on my computer.
Thx very much.
 

A:Does power supply with higher power rating really burn motherboard?

The long answer is "No".
Just be sure of the dimensions of the power supply before you order a replacement, as HP uses some pretty strange sizes sometimes, and you want the new one to fit with room to spare.
 

http://www.techspot.com/community/topics/does-power-supply-with-higher-power-rating-really-burn-motherboard.148700/
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I have a Sony VGC-RB42G computer. I recently moved my computer, cleaned off all the dust, and when I plugged everything back in, it won't power up. The light on the power supply blinks green, inside the motherboard also has a green light that blinks as well. It has a ticking sound too, but I am not sure if it is coming from the power supply or the motherboard. Any idea what could be wrong.

FYI, I have already unplugged everything from the power supply, pulled out the ram, checked the battery, and put everything back together and still no change. One thing I thought was strange was after I unplugged everything, I pulled the power into the power supply again and this time the green light came on but did not blink. It stayed solid.

Help
ncleo
 

A:No Power, Blinking green light on power supply and motherboard

Sounds like a Power Supply problem.
 

https://forums.techguy.org/threads/no-power-blinking-green-light-on-power-supply-and-motherboard.646158/
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It's been a while since I built a system from scratch and have a... errr... simple question

gfx: Sapphire HD3850 512MB Ultimate (passive)
http://www.sapphiretech.com/us/products/products_overview.php?gpid=225&grp=3

MB: MSI P35 Neo2 FIR
http://global.msi.com.tw/index.php?func=proddesc&prod_no=1261&maincat_no=1

PSU: Seasonic M12II 500W
http://www.seasonic.com/product/pc_retail.jsp

The motherboard has a power connector for the graphic card next to the slot.

Is there any reason I should connect the power for the card to the power connector on the board instead of directly to the power supply?
 

A:Graphic card power to power supply or connector on motherboard?

First time I have ever seen that feature. I like it. I'm thinking that is a neat/easy way to partially eliminate cable clutter from the PSU. Give it a shot, you can always revert to PSU cable if you wish.
 

https://forums.techguy.org/threads/graphic-card-power-to-power-supply-or-connector-on-motherboard.705154/
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HP Palvilion m c Motherboard IPIBL-LA Berkeley http h www hp com ewfrf wc lc en amp lang en amp lc en amp product amp task N Power Supply DPS- ab- a http www itwinkle com hp posu html Hello all this is my power Is NO motherboard? it or supply POWER, first post First let me thank all NO POWER, Is it power supply or motherboard? for being here and sharing your vast knowledge My PC and power supply is above web-links included for more accurate description Also I have scoured this forum internet attempting to resolved and yes there is a ton of info The problem is the I cannot find specific details quot similar quot to my problem regarding how they determined the repair action other than replaced power or mobo So hopefully when this is resolved this will help someone with my similar problem - Problem gt PC will not turn-on just as if not plugged into power source -- Sypnopsis gt Nothing unusual happened as far as I know Shut-down PC for the evening as usual next day went to turn it on nothing - Troubleshooting accomplished -- Checked power outlet amp cords checked good -- Green light on back of power supply is steady green normal indication -- Removed power supply to test with multi-meter Strapped jumpered pins green wire with ground blk wire All appears normal everything is in range of specifications values below pin pin pin pin pin pin pin pin pin pin pin - pin pin pin -- Tested my power button wires for continuity on PC case properly shorts -- Reassemble everything still nothing -- Disassemble entire PC motherboard is sitting on cardboard box --- Items plugged into motherboard -pin atx plug and from NO POWER, Is it power supply or motherboard? power supply -pin plug volt from power supply gig ram stick CPU amp CPU fan - Goal gt power-on motherboard -- Tried shorting power button pins nothing -- Tried shorting reset pins nothing -- Jump-started NO POWER, Is it power supply or motherboard? atx plug with paper clip POWERS ON See link below for example http www youtube com watch v FCspIGgBV amp feature related Unfortunately unlike the youtube video when I remove the paper clip I lose power and back to square one - Back to the PS tested PS with strap jumper on when I remove the strap the ATX loses power through its plugs though the green light stays constant green There is no external on off switch on the power supply -- Should the power supply lose power once the strap is removed -- If so how does the power supply know to stay on -- Any help is much appreciated trying to determine if power supply is bad MOBO etc and if I can repair it Also I cannot swap items I do not have any additional parts laying around ADDITONAL NOTES - When powered on the mobo pwr-btn pins and the reset pins have voltage accross them volts dc pwr btn pins though has quot NO quot effect when shorted volts dc reset pins resets when shorted it works the way it should - Attached additional items to see if I could fully boot PC System Fan note will not boot without this fan plugged-in quot ERROR System Fan Has Failed Service PC to prevent damage to the System Press F to continue quot video card geforce gt hp pn- key board plugged into PS keyboard port mouse plugged into PS mouse port Hard drive When strapped I can boot competely up and log-on to desktop When I choose quot restart quot via windows soft button it resets properly When I choose quot shutdown quot it will shutdown but then I have to remove the strap and reset the cmos I get no display unless I reset the CMOS to boot up properly again I m guessing ultimately its the power supply Since the problem directs back to losing power The PC boots properly when I make the conditions right so that would most likely eliminate a motherboard or cpu problem What I don t understand nor can I find any info on is how does the power supply stay activate I m aware of the shorting of the power button pins on the mobo Probably thinking too much into it but the power supply seems to be working accept for the mystery quot no po... Read more

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Hello I have a computer I picked up from Fry s that has a K FSB motherboard GB not will after K7 power motherboard outage power up of memory and K7 motherboard will not power up after power outage an AMD Athlon processor This is the second motherboard I have put in this thing as the first one suffered the same malady that I need help with The motherboard is a Model M ATX style The other night we had a power outage for about hours All my computers were powered down except one I powered all of them back up and they worked as per normal except the one K7 motherboard will not power up after power outage I reference above This one was off during the outage Now it will not power back on The same thing happened with its predecessor board which is why I replaced it Am I missing something Is there some sort of magical reset that I can t find Why would this computer be the only one with a dead motherboard after the power was back on Is there a flaw in its design What brand should I go with if this thing is junk Any help would be appreciated Thanks Steve nbsp

A:K7 motherboard will not power up after power outage

Steve1 said:



Any help would be appreciated.

Thanks
Steve1Click to expand...



Hi I have a PC that does the same thing, I think its the PSU, if I remove the mains cable for about 2 minutes, then replace it, the thing powers on OK, I really must get round to sorting it out soon...
 

http://www.techspot.com/community/topics/k7-motherboard-will-not-power-up-after-power-outage.58435/
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Hello all Posting this message to ask for some kind assistance and possible help Yesterday my electricity overloaded causing the electricity to blow I flicked the trip switch and the electricity went back on When I be seems up, Computer power motherboard power won't to getting tried to turn my computer on Computer won't power up, motherboard seems to be getting power there was no response power light didn t light up and no sound of anything running like the fans just completely no response I thought at first it was a power supply so I purchased a new power supply and tried that When I did this the power light lit up but again there was no response from the computer at all I have tested all the components in another computer and they worked fine graphics card and RAM etc I put a wireless adapter into the USB ports which are connect to the motherboard and this lit up which made me think that the motherboard was still getting some sort of power Do you think it is still the motherboard I know it will be difficult to tell for you because you do not have physical access to the computer but do you think this could be a possibility Do you think it would be worth taking the computer to a computer repair shop to see if they could give a possible explanation to the problem Sorry I am not very computer orientated that is why I have asked for your help If it helps this is a link to the computer it is The computer is a BXB E DUAL CORE GB GB RAM GT GB PC It can be found on Ebay or via a Google Search Thank you to all who read this and thank you to anyone who gives their opinion on what the problem could be Regards Brendan nbsp

A:Computer won't power up, motherboard seems to be getting power

Seems like a fried motherboard. I guess you'll have to replace it.
 

http://www.techspot.com/community/topics/computer-wont-power-up-motherboard-seems-to-be-getting-power.146551/
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My PC suddenly shut off and wouldn't turn on, but the mouse and motherboard lights were still on. A tech took my PC and ran some tests. I assumed that either my Power supply or my Motherboard was unfunctional but he called me back telling me that it was neither, and that the problem was coming from "a part" that gave power to the motherboard. The replacement of this part would cost $80.

Am I getting ripped off? What part could possibly cost $80 and isn't the Power supply?
 

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hi guys as per one of my friend I could replace my memory RAM up to GB so I ve ordered Power Light Motherboard/Power 8300 AMBER Green XPS - Supply - Light a couple sticks of Kingston HyperX nbsp so I ve took slot and replaced GB Hynix RAM by GB HyperX Now I have a good old CPU that doesnt work plus it smell like burnt plastic with no apparent damage to XPS 8300 - AMBER Motherboard/Power Light - Green Power Supply Light the board or RAM nbsp Startup x BEEP No BIOS Motherboard Light Solid AmberBootup Light Flashing AmberPower Supply Light Solid Green I ve tried booting from nbsp a single RAM unit on slot one then slot two and nothing has changed anyone can help Motherboard Y MRGhttp www findlaptopdriver XPS 8300 - AMBER Motherboard/Power Light - Green Power Supply Light com specs- y mrg-dell Processor i Primary SSD Kingston HyperX Savage added Secondary Seagate TB TB added Barracuda New RAM nbsp ts HX C FK http www kingston com dataSheets HX C FK pdfOld RAM nbsp HMT U CFR C-H https www amazon com PC - - MHz-Hynix-HMT U CFR C-H -Unbuffered dp B BTRAS

http://en.community.dell.com/support-forums/desktop/f/3514/t/19987583
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Hello My friend asked me to take a look at her system to see if I could upgrade her RAM As a computer teacher I get asked favors a LOT haha Anyway - her system is a Gateway P C- It was working A-OK when I arrived at her place I removed the case and determined that I could add memory She saw how dusty the inside was and proceeded to blow the dust out and turned the system on its side When I put the system together again it would not turn on I notice that there is voltage when I plug the power plug into the system I can feel it in my fingers but when I press the power button I get a split-second flicker of light I ve checked and rechecked all of the connections I haven t yet unplugged EVERYTHING and started from scratch mainly because I do not know where to begin I guess I have power motherboard to help! - No two questions Is there any way to OVERRIDE the power switch and just have the computer automatically come on when it is plugged in Do you think this is a power supply problem I cannot imagine that just turning the system on its side would fry the MB Any suggestions would help me greatly at this point Thanks so much nbsp

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Hi all,

i was passed a packard bell x2414 the other day as it failed to power up. The fans would spin but nothing else.

ive tested the power supply using an antec power tester and get no errors so that counts out the PSU.

i then came to the conclusion that it was either the motherboard or cpu. I removed the ram and received a 1 long bleep which suggested that the motherboard was good and that maybe it was the CPU.

ive now replaced the motherboard just to double check the theory and again nothing. the fans power up for a second then nothing.

after this i would come to the conclusion that the cpu has failed.

the question is that i have never experienced this before... motherboards, psu and memory failures yes. but not a cpu failure especially intel (processor is a quad core q6600).

can anyone comment? offer advice?

many thanks in advance

andrew

A:new motherboard - no power up.

The only way I know, is to test the CPU on another motherboard and or test a known working CPU on that motherboard, eliminate one or the other.

http://www.sevenforums.com/hardware-devices/245910-new-motherboard-no-power-up.html
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Hello all I skimmed around in the forums and really didn t see any post with this problem if I missed something please point me in the right direction I ll try to explain my problem the best I can Came back from vacation and my computer would not power up I suspected a storm took it out I replaced the power supply and still got nothing I suspected the motherboard next And in this process decided to upgrade a little I got the gigabyte Z x-UD motherboard with the i k and new memory sticks g-skill Got everything in the case and Power Help... Motherboard hooked up now it still will not power up The only light I see is on the LAN connection on the back of the case any ideas what I screwed up Components new Gigabyte Z x-UD mobo new i k LGA new gig memory G-Skill Rip Jaws Geforce cooler master CPU fan new cooler master v power supply Any help would be appreciated nbsp

A:Motherboard Power Help...

I should add...No beeps, no lights (except for that LAN light), and no fans try to start.

Thanks for your help in advance.
 

http://forums.majorgeeks.com/index.php?threads/motherboard-power-help.310109/
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I just installed a new mobo and now I cannot get it to power up the system. There is a test switch on the power supply and when I push it it actually starts the fan on the heatsink above the P4 processor, but nothing else happens. What am I doing wrong? I am about to pull my hair out!
 

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I came into possession of my roomates computer because he is lazy. The only way to turn it on is to use the jumper things(no idea what they are), the button will turn it off though. The computer was thrown into my backyard by my roomate since he thinks if a computer wont turn on, it is dead. Any idea's what might be wrong with it and how i might go about fixing it?
 

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Let start you guys have really helped in the past and I really apprecate it.
I'm working on a emachine for a friend and here is what he has.
The model is T2896 Pent 4 478B board 512mb ram The board is a D865GVHZ, power supply is a 450 watt
It won't start up, I tested the power supply and it was good. But just to be sure I put new one in. Replaced motherboard with a new one. Still no power to motherboard.
I took off front cover and removed switch but seems to work alright. Still with everything hooked up it will not boot up. By the way power is getting to motherboard green light did come on. I really don't know what to do next. Cann't understand way no power is getting to switch. I really could use some help on this one.
 

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So I cleaned my computer a week ago and then reassembled my computer it Motherboard power was a thorough cleaning And when I powered on the computer via the power switch on my case i heard a pop Followed by the immediate power down of my PSU and a smell of burning Having assumed I let out the magic smoke somewhere presumably the PSU I immediately unplugged Motherboard power the machine Upon further examination I discovered the standby light that usually turns on when Motherboard power my PSU has power but is not turned on did not light up Being reasonably sure that the PSU was the culprit I went and ordered a new one I connected everything and nothing Thinking the PSU might be DoA I went to OCZ site and found a way to test if the Power supply worked add a load ie fans and such and connect the V leads with a wire whereupon the PSU turned on So I know that the PSU is fine More interestingly when I went to unplug the cable for a split second the computer turns on Further investigating I fiddled with the cord and found that when the power cable is tilted toward the right side when the clip is facing up the mobo and cpu stay on In fact the entire pin is disconnected When I maintained this position and pushed the pin in the computer immediately became unpowered Basically as long as the one end is positioned correctly the computer turns on I have no idea waht s wrong None of the pins are bent or anything Is my mobo just fried Is there a possible solution Help my new power supply http www newegg com Product Product aspx Item N E My Mobo Gigabyte P-DS nbsp

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I bought a new computer by power won't on Motherboard purchasing the parts Motherboard won't power on seperately and putting them together I have never actually built my own computer before but I did get some help from my brother who has done it before I got this motherboard http www ncix com products index php sku amp Motherboard won't power on vpn P NSLI amp manufacture ASUS and this power suppl http www ncix com products index php sku amp vpn AX -A amp manufacture FSP GROUP USA I press the power button and nothing runs no fans processor no noises in the motherboard nothing To preface this the power supply IS on it is lighted up blue and the connectors from the power button are hooked up properly to the motherboard i followed the picture diagram from the motherboard manual Other than that I m pretty sure I have all the connections in place In the motherboard manual it shows a couple of unimportant pins which I don t have a cable from the power supply that matches these pins Any ideas nbsp

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I have an Asus P C I m Help Motherboard Power trying Motherboard Power Help to install on my Motherboard Power Help computer I have my motherboard out for the power test with all the basics video card stick of ram psu connected CPU and fan I short the power switch with a screwdriver like always Motherboard Power Help and the fans flicker like they are about to turn on and then just stop Nothing else powers at all The LED power light is on with the power supply Here are some things I have already tried -I bought a new Power Supply just in case it needed more power I m running a w wMax psu -Tried resetting the cmos and made sure it is in the right position -Made sure or at least tried to that no other metal is touching and shorting any part of the MB -Switched out the Video Card with another one same result -Used different stick of ram same result When I use this method to power my old motherboard it works fine What I can t get is that if its a dead motherboard if thats the case why the power would seem to start then just die again I would expect I would just be getting no result at all rather than a power flicker Any help would greatly be appreciated nbsp

A:Motherboard Power Help

If you have to short the power switch, you need a new case and a new motherboard. The power switch grounds a pin on the motherboard. This tells the motherboard to start up
 

http://www.techspot.com/community/topics/motherboard-power-help.88759/
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I m having a on, motherboard not The power the is is lot of trouble powering my computer I m using a watt power supply to power my P that I know is not the problem I was just wondering if there is a way to determine if it is the board or proccessor that might be the problem The power is on, the motherboard is not Ive already tried to power on the system with the motherboard out of the case and still nothing happens I ve also already tried to take all the periphial cards out too but have left the proccesor The power is on, the motherboard is not in nothing happens I also took the processor out and tried to power on the system and still absolutly nothing happens Does anyone know much about the Intel D PBZ It sure has a lot of plugs that nothing goes to like the VREG fan Chassis Intrusion and the sound plug only has prongs I know its not the CMOS Jumper because I checked that The STR LED on the motherboard turns on though nbsp

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Mother Board won't power on. I tested the PS and it has good power. I replaced the CPU still nothing, replaced the memory still nothing. I put a PCI tester on no power to MB. Now I replaced the MB acting the same as the last MB. I changed everything but PS but it sending out the correct reading to the tester. any ideas why or what else to check? I tested the board outside the case in case it was shorting out. I don't think two MB and CPU could be bad.
thanks
 

A:motherboard won't power on

do you get any indication of power from the motherboard? for example, my motherboard has a light on it so even if it's off i can see that it's getting power.

take out the ram instead of replacing it. all we want to do is see that the motherboard is working, no other components.

do you have another power supply you could test it with?
 

https://forums.techguy.org/threads/motherboard-wont-power-on.963057/
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OS Windows Ultimate bit MB Asus P G T-MLX Plus I had been on the computer for a couple of hours amp then logged off to do some chores Came back or hours later amp turned on the comp nothing happened Thought it might be power supply so pulled it amp installed an extra I had Nothing Reinstalled original Thought maybe it was the front panel switch so disconnected the switch from the MB then shorted the power supply switch on the MB Nothing I was watching the CPU amp case fan one time amp when I hit the switch there was a very slight movement of the fans amp there is no light comes on to show power to MB so now I'm down to guessing it is the MB or CPU power motherboard No to If it is the the CPU I can replace it if it is the MB when I replace it can I use my old HDD on the new MB so I don't loose every thing on it Thanks for any info help If I can't use the old HDD I'm a cooked goose

A:No power to motherboard

Hello jessee.....yes, if the motherboard is dead, you can use your HDD. But, the OS will not will usable, as you will be installing a new motherboard with all new drivers. So, I will suggest that connect your hard disk to your friend's PC and transfer all the files that you need to a different partition and let the partition (mostly C drive) as it is with just your OS on it. When you will attach your HDD to your new board then you can just install new OS on the same partition i.e. C:

http://www.sevenforums.com/general-discussion/279182-no-power-motherboard.html
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Hi,

I was trying to plug a jack into my PC and when I did the PC restarted I thought I'd try again to turn on and see this (see attachment).

Originally I was just getting the hard drive error, then I took the battery out and put it in to clear BOIS now im getting all kind of errors.

I got a better PC as a spare which wont be to bad but I need all that data.

Any ideas, for getting the data of and getting my pc fixed
Thanks
 

A:Motherboard Power

to get the DATA, plug the hard drive into another computer as a slave drive. then u should be able to just drag and drop the data from one drive to the other.
 

http://www.techspot.com/community/topics/motherboard-power.111841/
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Ok i like making computers and when i put everything together i got power to the fans and things like that but not to the hard drive or cd drive. I know im not getting power to the motherboard and i have checked everything i can think of. What is wrong?
 

A:No power to motherboard

Re Chech all you connections>switch power connections to the non working drives>try a different power supply if possible.are the drives new?
 

https://forums.techguy.org/threads/no-power-to-motherboard.835273/
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I AM WORKING ON A FRIENDS COMPUTER ITS A 2003 DELL AND I HAVE CHECKED THE PLUGS AND SWITCH BOTH ARE FINE BUT T IT IS NOT EVEN COMING ON SHE WAS TOLD IT IS THE MOTHERBOARD HOW DO I CHECK AND SEE WHAT IS WRONG? FOR NOT KNOWING
 

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I was on my pc when it reset, i started it back up again only for a few minutes later for my monitor to say no signal detected. Now when ever I start it up it says the same, looking through the side panel on the case I can see that none of the fans on the motherboard are going yet the one on the side panel is.

I put a new cpu in a week ago but have had no problems with it I also installed media center at the same time, can any body offer any suggestions as i need the pc for my work.
 

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hi guys my power supply has blown
i have a few spare psu lying about
the 24 pin wide connector is fine
but where there is normally the smaller 4 pin near the cpu is a bigger 6 pin...i never seen this before
but near there on the board is a 4 pin molex connector...the same as what plugs into ide hdd and cd rom drives.
can this be used...can i plug a normal molex connector into there?
if not...what is it used for?
 

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Hi guys my pc is old I went to buy RAM to speed it up a bit and was advised it would no power New motherboard, be better to buy a mobo with RAM built in so I did I replaced my mobo with the new one plugged it in and only the New motherboard, no power CPU fan was New motherboard, no power spinning but nothing else happening I figured out i needed a PATA my hdd to SATA mobo connector which I bought Then I realised my old FPanel and reset LED cables were different old pin block connectors from main led and power button ect so I also decided to buy a whole new PC casing with USB LED Speakers etc etc cables onboard So I moved my disk drives mobo and mains over to the new casing and now I am getting nothing CPU fan will not spin I was very careful moving everything and am quite sure i did not damage anything I took everything back out and placed on a table and just connected the basics Power mobo CPU FAN and no result Any idea s on this would be great thanks in advance for your time and effort nbsp

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Hi. My stepfather built his own PC. However, it's not starting and all of these components are brand new.

He says the motherboard is dead, but when I tried to work on it myself, I turned on the power and the Motherboard's yellow light was on and the fan that cools the processor is on, including it's blue light as well.

I have another PC with components that DO work (but the motherboard and processor are different and older), so I have replacements, but I don't know what's broken that would need replacing!

The motherboard is an Nvidia 650i Ultra.

Also, I don't get to POST. It's just a black screen.
 

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Okay so I had a previous problem with my Asus motherboard a n x-x and narrowed it down to bad ram or at least that s what I thought Anyway I just got my new stick of ram today pop it in the system try to power up and NOTHING I re-open the case and check to see if anything is amiss and there s no light on the motherboard NO POWER GOING TO IT AT ALL or so it seems I hadn t touched the computer since I had removed the ram from the other time Did I fry the mobo somehow even though power and it wasn t plugged in How easy is it to fry the motherboard What else motherboard!!!! power ArghhhHH!!!! No to could be causing the problem besides a bad powersupply What can I do I have already tried resetting the CMOS with taking the battery out and switching the jumper and whatnot And if motherboard were quot fried quot quot toast quot quot dead quot Would there be any chance of the little LED still lighting up Should I be concerned with PS or MB I m thinking MB but I suppose the power supply could have just failed or something ArghhhHH!!!! No power to motherboard!!!! too by chance I dunno nbsp

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Hello everyone I seem to be having a rather simple yet immensely frustrating issue I m building a computer i plugged the power connector on the mobo turned it on and bam it worked Great right well today i came home from work and it would not work So i opened the case up and took out the power connector after inspecting both ends i put it back in fans started and the motherboard light came on but only for a second After fiddling with it some more i found that the only time my mobo gets any juice is when i put the connector from the power supply in just exactly the right place in the motherboard connector If i push it all the way in i can hear an odd whining noise from my PSU Like a gnat in your ear I m not sure how long the motherboard will stay on as my hands are not steady enough but i know power Motherboard connector the times have varied Any opinions I have a corsair cx and a biostar ta GB if that helps Thanks nbsp

A:Motherboard power connector

Just checking but did you also plug in the P4 12V ATX connector on the motherboard?
 

http://www.techspot.com/community/topics/motherboard-power-connector.157577/
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for last days i have been trying hard to figure out what was going or Supplly Motherboard???!? Power on with my computer On Sunday after i tried to change the display settings my computer froze i turned it off then back on the computer didn t even boot to the BIOS i heard no voice or error messages I stripped the PC down left only CPU memory video cards no luck Then all of a sudden my power died thermal-take w i have no idea what quot murdered quot it all it was doing is blink only ones when i press the power button fans rotate once and the PC goes OFF however all these Power Supplly or Motherboard???!? times the green light of Power Supplly or Motherboard???!? the motherboard was on So i went to buy a new Power supply with watts Power Supplly or Motherboard???!? antec then again it was working fine but BIOS never loaded after few tries the same thing started to happen to the new power supply after i press the power button the PC blinks and goes off I went to buy another new antec power supply with watt antec it started working fine then i realized that my case speaker was off i turned it on and heard the beeps that video card is quot dead quot i went to buy a new AGP video card from best buy and plugged everything back on then the BIOS loaded fine then i tried to put my old video card it didn t work so i put the new video card and tried to power up but the PC was acting as i mentioned above it blinks and goes off i thought the new power supply died as well but then i unplugged the v pin power supply and the PC turned on fine it loaded to OS every time i put the pin v power supply plug the system will not power on it just blinks Now how in the heck the PC is working without that v pin plug i thought the Pentium s require that additional power specially when it is only watt power supply For last years my old watt power supply was connected by both plugs pin and pin can any one tell me what is going on Is mother board killing the power supplies or was it my old video card that did this crime shall i buy another power supply Right now the PC is working without that pin plug and i am kind of worried if anything happens in the long run Any suggestions or thought will be greatly appreciated Here are the specs of my PC P Ghz FSB Asus P T -C RD-RAM old video card ATI AIW new one Nvidia PSU - antec Watt nbsp

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so my computer would randomly turn itself off after some time without being used, however the other morning when I went to turn it on, my processor fan turned on for a split second but then stopped, I know the motherboard has power because the little green light is on, as are all other lights that would be on without hitting the power switch. any ideas?
 

A:Motherboard has power but CPU won't turn on

The power supply has died. Just because you see green lights doesn't mean the power supply is supplying all the voltages needed by the computer. It could also be the motherboard, we'll go for the power supply first
 

http://www.techspot.com/community/topics/motherboard-has-power-but-cpu-wont-turn-on.178974/
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Hey guys before i start asking my question Since I m not a native English speaker i might sound a little bit weird So I would like to apologize for this in advance So I was regularly playing a game with my good old YO laptop Then i tried to lift it up to look what s under it and when I tilted it a little bit the fan that cools the entire system started making a really high annoying noise I immediately turned off my computer and unscrewed the layer covering the important pieces Then i unscrewed the fan and saw that the fan was scraping off the metal frame covering itself I bent the metal a little bit with my screwdriver to set the fan loose and it worked When I started my computer again the noise was gone But then I realised that there was no noise at all I started the computer with the cover open and i saw that the fan was not moving I took my laptop and fan to a tech store and they told me that they ve tested the fan and it s working smoothly And warned me that the problem might be about some integrate entegre in Turkish don t know the exact term for this one that helps motherboard or the CPU order fan to work and or stop And added that he is not sure but this is could be a complicated and serious problem so I should not trust any tech services but the MSI s own And I bet you can guess that they are too far from where I live or where I can travel And now I m home searching the entire internet database for a clue yet not finding anything at all P S I power - Motherboard Laptop fan. the can't ve discovered that the fan Laptop - Motherboard can't power the fan. is trying to move but something stops it immediately even in manual turbo fan mode So it makes a bizzare twitching move See the video below P S I ve tried to heaten up the computer with games and other heavy processes to trigger the fan I gave up and put my computer in the fridge at degrees celcius Some information that you might need You can always ask me for more info I m desperately in need of any kind of help Laptop Model MSI GE NC bought at the end of OS Windows Motherboard Manufacturer MSI Motherboard MS- BIOS version E IMS I m going to add a few videos and pics to help you guys understand the situtation better The socket for the fan and the pinned tip of the fan s cable detached The BIOS information screen At the second video you can hear the weird flashing sound that the fan makes nbsp

https://forums.techguy.org/threads/laptop-motherboard-cant-power-the-fan.1165885/
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When I press the button to start my PC nothing happens. No beep and no boot up. The fans on the power supply and the chip start and there a red LED lit on the motherboard.

I have tried everything suggestedin other threads. Stripped it down, refitted the chip and the RAM but still no change. I have checked the on/off switch and checked all the connections are good. Could it just be that the M/B battery is dead? I am running out of ideas and would appreciate any help.

Thanks guys
 

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Hi,

My desktop PC was not on this morning when I got up (I leave it on overnight). Nothing happened when I pressed the power button. I then unplugged and re-plugged the power socket and it would either power up but not boot up (if that makes sense) just from plugging the power in or I could press the power button and it would come on but not load. When this happened I can then no longer switch off without pulling the power lead out of the back?

It sounds like the power unit to me but could it be the motherboard?

my PC is an Advent 3215 (from PC World)

Thanks in advance

Lee
 

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Hello, I need your advice please.

I have a system based on a Epox 8KHA+ with the latest BIOS. 512MB RAM, AMD XP2000+ not overclocked, running at 56 degC., Windows XP fully updated.

The problem is the system keeps turning itself off. After about an hour of running, it suddenly dies as if the power plug had been removed. If I try to restart using the power switch nothing happens. If I then unplug the power lead and replace it, it then starts up OK.

Any ideas please?

Many thanks

Nick
 

A:Power supply or motherboard?

Hello and welcome to Techspot.

Sounds like some kind of overheating problem. The psu is a major suspect.

Try another psu and see how it goes. I don`t think it`s your mobo.

Regards Howard :wave: :wave:
 

http://www.techspot.com/community/topics/power-supply-or-motherboard.25821/
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Hi everyone, I recently swapped out motherboards and cases to fit the situation and one motherboard I just bought worked in one case and now in the new case the power surges like a flash then shuts off,it seems like something might be grounding out? I have tried everything-rewired and powered up-put the motherboard on plastic screws-tried a new case-nothing the motherboard just flashes with power very briefly then nothing, what is wrong?
 

A:motherboard power problem?

To check for grounding it is best to test the board outside of any case, putting it on the box it came in is good. Do that with just the CPU (+heatsink and fan) and a single stick of RAM installed to see if it POSTs.

It is possible that the motherboard is dead, or maybe the PSU you are using!
 

https://forums.techguy.org/threads/motherboard-power-problem.948798/
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All other components were working with the old motherboard ( which was damaged and was not booting correctly ).

I've plugged in new motherboard/RAM/CPU and when I power on the system via either the power button on the case or the power button on the motherboard, I get nothing. No power at all. I've checked all the PSU connections to the MB and I am at a loss as to why it is not powering on.

What's interesting is that when I plug the case power button connector in on the motherboard while it is connected to power, the system powers on for about 5 seconds before shutting down again.

Specs:
Memory: ASRock 890GX Extreme3
Ram: G.Skill Ripjaws F3-12800CL8D-4GBRM
PSU: Corsair HX-650 Power Supply
CPU: Phenom II X3 720 BE

Any help would be appreciated.
 

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Hello all,
I have a M2N-E SLI Edition. How do I measure how much power the motherboard itself uses. As well as:

RAM (Two 1Gig Kingston 800MHz)
Hard Drives (1 IDE and 1 SATA)
CPU (AMD Anthlon 64 X2 Dual Core Processor 6400+ 3.22GHz)
 

A:Motherboard Power Consumption

Motherboards by themselves consume little power, it is the components you have that will consume the majority of the power. Your CPU alone consumes about 125W typically, which may go upto 150W or so during extremely heavy utilization. Throw in about 50W more for your RAM and HDDs, and you have a maximum figure of about 200W or so.
 

http://www.techspot.com/community/topics/motherboard-power-consumption.111254/
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I have a computer thats acting really funny right Power issue? motherboard now Yesterday it was perfectly fine I left for a bi t and came back and my pc was off No one was home so I figured maybe it installed an update and restarted or something When I tried turning it back on nothing The fans didnt even spin So I checked the power supply and the voltage readings were right on par I tried removing componets and tried starting like Power motherboard issue? that Power motherboard issue? and nothing I decided to unplug the Power motherboard issue? power supply and try to plug it back in When I plugged it back in still nothing happened I then unplugged the pin connector from the board and tried just the pin connector and the fans started running As soon as I plugged the pin back in with the pin nothing happened again I tried different power supplies wt and all the same thing Im thinking the board might be messed up Any input or thoughts on what to try nbsp

https://forums.techguy.org/threads/power-motherboard-issue.900400/
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Hey fellas. My mother in law had a power outage quite some time ago. When it happened her pc would not turn back on. Is there any way to check to see if the motherboard is still good? I would like to get it working as a secondary computer. Also, how can I tell what kind of power supply is required for that motherboard? Because I have tried a couple power supplies, and one was from a OLD 166mhz pc, while ther other was from a 866mhz, but it seems like the ends or where it plugs into the motherboard are different in shape. Any suggestions? This is a HP 900mhz pc, it would be nice for web browsing and other task. Thanks for any help!
 

A:Motherboard/Power Supply ?

Post the make/model of the motherboard and we can probably find a manual for it.
 

https://forums.techguy.org/threads/motherboard-power-supply.372679/
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Hi,

I have this motherboard whose identity I havent yet been able to discover but basically it doesn't power up. It has a P-iii 450MHz CPU and I have verified that the CPU and power supply are good. What I found was that the power LED would glow and the CPU power fan would rotate for a 3 seconds. I took out the CPU and the LED/fan were on for 5-6 seconds longer but then went dead. Problem with the capacitors ??

What could be wrong ? Any help would be appreciated.

Thankx
 

A:Motherboard Doesn't Power up

Make sure the PSU is connected tightly to the motherboard. If that is a loose connection it could be getting some power, just not enough.

BTW,
:wave: Welcome to TechSpot :wave:
 

http://www.techspot.com/community/topics/motherboard-doesnt-power-up.7708/
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I was looking through motherboards and noticed that this one has an 8-PIN power connector.

I went and looked through PSUs and found that most are only 4-PIN, like this one.

What am I missing? How do you connect a 4-PIN PSU to an 8-PIN board?

Thanks!

A:8-PIN Motherboard and a 4-PIN Power Supply

A lot of the newer PSUs have two 4 pin connectors to use for the 8 pin connection. Also I have seen some 4pin to 8 pin adapters on NewEgg and eBay.

http://www.sevenforums.com/general-discussion/284330-8-pin-motherboard-4-pin-power-supply.html
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Case Heres the thing I went to a friends house wolvman on here and was getting it set up He told me that because I Power out Either Or Supply went Motherboard needed a hard drive still and that neither of the raptors he gave me worked he had a gig IDE drive I plug it up having to unplug the side fan because all of the power supplies I have are limited to I think legacy connections I start the computer up nothings wrong but its lagging a little due to the system XP home getting drivers etc for the hard drive It comes up and says its working so I check it and it was It had a previous installation of XP on it so I see everything We then decided to play CS S and about minutes into it it was running fine and dandy it just shuts off First I think that the GPU went out because I didn t notice the computer went off just that the monitor said quot No signal quot but it went completely off I proceed to try to turn it back on and it does NOTHING I pulled the side of the case and checked how hot it was Either Power Supply Or Motherboard went out The Power Supply Either Power Supply Or Motherboard went out was pretty freaking hot along with the GPU CPU and HDD s This is where I get scared First I think it just overheated and shut down but then I realise that that s usually a BSOD correct Would the HDD s usually get that hot Its a Either Power Supply Or Motherboard went out simple Maxtor gig I believe its RPM No point in making threads X D Case I got a motherboard from him after this us deciding that I needed to upgrade anyway While its not great its still decent It contains an Athon XP Same as his computer and has PCI-E support I have no clue what the maker is or anything It has a Geforce IGP but the guy used to have a GPU in it but his brother stupidly knocked it off of the bed and one of the battery things on the GPU what are these busted and acid went all over it Do you think it will still work It is already in my case with a power supply but I am waiting for him to find the manual so I can plug up the power switch and everything will it hurt anything to just try different pins I stupidly did the uppermost top right one on the set of pins that you plug them up to and it wouldn t shut off without switching it off on the back of the PSU Simply do you think Battery acid could ve killed the Motherboard I apologize for this very long topic but I haven t been on for a while and in the meantime this all happened nbsp

A:Either Power Supply Or Motherboard went out

Maxtors fail way too frequently. Next choice is the power supply. Watch from the back with a strong light when the <ON> button is pressed. Does the fan blade turn four revolutions or less. That is a bad power supply.
There is no relationship, really, between heat and a BSOD. It can just as easily shut down as give you a BSOD.
I'm betting it is power supply, memory module, or Maxtor failure.
 

http://www.techspot.com/community/topics/either-power-supply-or-motherboard-went-out.108790/
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OK I ll try to get it right I have an Intel Ghz Duo Core on an ASUS Motherboard Gig RAM and all about six years old running Windows Pro When I do a cold Power what? OS? or Motherboard? .... supply? bootup from the power OFF condition the PC freezes at the BIOS message and will sit there forever If instead I press DELETE on bootup it will boot right through to the BIOS settings page blue white screen whereupon I do the ESC and EXIT bit get Power supply? Motherboard? OS? .... or what? presented with quot Start Windows Normally quot and all is then OK If I do a reboot using the reset push button it will only proceed to the BIOS part where the HARD DISC is checked and again will sit there for ever Now to confuse it further if I turn the PC OFF and ON using the front deck push button it will do a normal reboot right through to starting Windows correctly Whilst the PC runs reasonably well thereafter it is quite common Power supply? Motherboard? OS? .... or what? for it to do a complete and total shutdown for no reason whatsoever or the keyboard or mouse to suddenly stop working On the back of the deck is yet another ON OFF switch and using this to reboot the PC results in a normal bootup So something stinks using the RESET Pb on the front of the deck or a normal cold bootup I replaced the Motherboard battery pushed and pulled all the wires - as you do - all to no avail It is far from a happy PC and I suspect either the power pack is playing up or the Motherboard is on the way out It is quite common to be tapping away quite happily when BANG the whole thing does a complete shutdown following a keystroke or adding a USB device such as a camera or such For no apparent reason on a bootup it will decide to reinstall a whole stack of drivers that have been working satisfactorily to date It may be the Windows software as after I took it to the local repair shop now defunct I keep getting messages that Windows is not the genuine version When I asked the Techie on this one he said thay had used one of quot their Windows discs quot to effect some repairs - yeh I have everything backed up so am very gtempted to format the whole wretched thing and try again I know the above explanation is a but hard to follow but hoping someone can see a glaring problem Is there any disgnostic software I can download to do a check on the hardware or is this a waste of time Thanks nbsp

A:Power supply? Motherboard? OS? .... or what?

Sure. Start by going into the bios and checking your temps and voltages; specifically the cpu temp, system temp, 12V, 5V, and 3.3V values. Post those here.

Next download and run memtest This runs from bootable media ie CD, floppy, etc. You need to make the bootable disk and restart with the disk in the drive [CD set as first boot device in the bios]

Test the hard drive with the drive maker's diagnostic. You download this from whomever made the drive ie WD, Seagate, etc. Most of the time you have a choice between a windows version and a dos or boot version; get the boot version. Again it runs from bootable media.

One other thought; have you cleaned the system at all? If not, open the case and give it a good cleaning with a can of air [available at any office store, computer store, even walmart]
 

https://forums.techguy.org/threads/power-supply-motherboard-os-or-what.1018081/
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Hi I have a computer or maybe had with an Asus M v-MX SE motherboard with Power Supply or Motherboard a dual core AMD processor running XP Pro SP Over the last few months maybe once every week or weeks it would freeze after booting into the OS Mouse would freeze and couldn t crl-alt-delete to task manager I had to unplug it then reboot and it would be fine The other day as it booted the boot message screen came up in different colors within words then everything had a green hue The green hue continued after the OS came up I was just checking mail before I went to work When I came home I Motherboard or Power Supply turned on the computer---and nada It didn t do anything and a message appeared on the monitor---no signal Not even the bios came up I use the onboard video so with the green hue I figured Motherboard But since it sent no signal now I m thinking power supply How can I determine the cause of the problem I know I can t find a replacement motherboard---it s years old A month ago I put in Crucial CT KIT AA gb but I don t know how this would cause this problem as it hasn t froze since I installed the ram Any and all responses will be greatly appreciated Thanks nbsp

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Hi, I'm on a mission to patch together some kid's emachines T2682 P4 pc. I'm pretty sure the motherboard is toast, I managed to get it running once, began a defrag, then the screen went to "no signal" (I could hear it was still running) and on reboot, no beeps, no post, no signal. The fans run, so I think the power supply is ok. I removed the ram, still no beeps, no video signal. I'm set to order another board, but I read where in most cases the power supply is what causes the mboard failure. Should I get a power supply and try that first? Is there a way to just check the ps?
 

A:Power supply or Motherboard?????

I would replace the power supply at the same time as the mother board. I had a faulty supply that seemed to work, on an Emachine that was under warranty. It blew the motherboard and keyboard and a wirless adapter that was pluged into the usb port at the time. they replaced all the parts but the wireless adapter because that was my own part. They put in a used power supply and just after the warranty it went out again an took the motherboard with it again. I took out the harddrive and threw the rest in the garbage. No more emachines for me. It was cheap and used as a second computer for the grandkids so no loss.
 

https://forums.techguy.org/threads/power-supply-or-motherboard.658850/
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hello the fan on my motherboard turns on however all the components do not such as my vga, usb, network port, keyboard or mouse etc


please help

windows vista home prem, 3 gb ram, 250hdd
 

A:Motherboard power problems

The computers power supply could be bad...
 

http://www.techspot.com/community/topics/motherboard-power-problems.176781/
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Hey how's it going. Any help would be great.
Had an older system so got a new motherboard and CPU. Installed it all and then no power when I try to switch it on. The orange modem light comes on but nothing else turns on.

New system-
Motherboard- z87-d3hp
CPU- i7-4770
Gpu- GeForce GTX 460
Ram- Kingston DDR 3
Psu- Shaw p4s6 860w.

Thank you

I also tried putting in one ram card at a time. Taking the graphic card out and using on board. Taking the motherboard out of the case to see if it was shorting out.
 

A:No power after motherboard install

Ratchetz said:





Hey how's it going. Any help would be great.
Had an older system so got a new motherboard and CPU. Installed it all and then no power when I try to switch it on. The orange modem light comes on but nothing else turns on.

New system-
Motherboard- z87-d3hp
CPU- i7-4770
Gpu- GeForce GTX 460
Ram- Kingston DDR 3
Psu- Shaw p4s6 860w.

Thank you

I also tried putting in one ram card at a time. Taking the graphic card out and using on board. Taking the motherboard out of the case to see if it was shorting out.Click to expand...

By any chance could you post a picture of your computer as it is hooked up right now so we can see if your missing anything. Try to check if the 4pin/8pin connector on the motherboard is hooked up and check for tightness of all the Motherboard connectors to start with.
 

http://www.techspot.com/community/topics/no-power-after-motherboard-install.199528/
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hi i m new motherboard need new Do supply? I or power a to this site so please help me with my computer i m sorry if this is in the wrong place to post this Do I need a new motherboard or power supply? fourm anyways lately I have been having troubles having Do I need a new motherboard or power supply? my computer bootup and have a startup screen or windows pop up but it doesn t I sometimes have to boot it out of times for it to work and eventually it does One day it froze so I held the power button to turn it off Now it doesnt have a post screen SO now the power is on fans running videocard fan running but nothing on display I m not too sure if its the power supply even though its watt because it lasted me - years plus all my fans are running I posted help and people said it is my power supply due to because it doesn t give enough power to my I m assuming its the motherboard because i heard no beep when I turn on my computer also I ve tried taking my ram out and turning it on and there is no continuous beep i am suppose to hear I change my ram around i took out my processer to check my monitor should be fine When I turn it on the only sound i hear from it is my discdrive and also my cpu fan is the last fan that spins after awhile I took out my videocard and cleaned it and put it back i did that to my sound card and my network card too so please help me out i don t wanna go buy a new computer my specs x gb DDR SD Crucial Ballistix Mhz Nvidia Geforce Gigabyte S-series GA-P -DS L Motherboard watt Corsair power supply Intel duocore or Ghz im really bad with computers lol sorry guys hope this helps nbsp

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hey guys, maybe someone can help me with this problem, my pc has been running fine for awhile, i was encoding a movie overnight, woke up and the pc is off, didnt pay much mind, get home from work and it wont power on. Long story short, i snooped around, unplugged the 4 pin from motherboard and she starts up!, plug it back in and when i press power button, she is dead again, any ideas? need a new MB??
 

A:PC won't power up with ATX 4-pin connected to motherboard

is the cpu stock or has it been OC'd?
 

http://www.techspot.com/community/topics/pc-wont-power-up-with-atx-4-pin-connected-to-motherboard.175242/
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I just installed a new motherboard in my mother's computer, it was identical to her old one which somehow got fried. Now the tower won't come on. I'm pretty sure I've connected everything correctly, and there is a tiny green light coming on on the motherboard itself. If you press the test switch the CPU fan comes on, but nothing is happening! What have I done wrong? Have I missed something pretty common? Please help, my mom is going in to ebay withdrawal.
 

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Swapped out the older ASUS motherboard when it apparently died - was also told that by a repair shop A sympathetic person donated his quot old quot ASUS P WD complete with PCU and RAM and heat sink for the cost of shipping so went to work He said he had upgraded to a more powerful setup and that this all worked when he removed it and stored it I had upgraded the power supply a few years ago to an ULTRA d watt when I added a couple Replacement up won't power motherboard drives and it always seemed to work I printed out the instruction manual for the P and not having done a lot of work on PC s for some years other than adding drives etc followed it very closely The plugs from the case were labeled so I m pretty sure I got the power amp interrupt switches case lights and fans etc all hooked up right Also the main cable to the board from the power supply and a secondary power supply cable to a socket near the CPU Also got the C drive EIDE and the additional SATA drives hooked up to the board and Replacement motherboard won't power up to the power supply and believe I have them right Maybe a question on the C drive There a set of sockets for EIDE drives incl one designated as a Primary and another Primary socket for an Replacement motherboard won't power up IDE drive If I recall my C drive is an EIDE so I should have connected to the right socket on the board Even if not shouldn t the CPU and case lights and fans power up When the big moment came to hit the switch it was an anti-climax Nothing happened The only sign of life is the green power LED on the board no CPU fan or anything No case lights or fans either I checked all the connections I mentioned and believe I have them right Being there s virtually no sign of life other than the green LED power light when I switch on the power supply could it be the power supply may have been the problem the whole time How can I test it - I have a digital meter Thanks for any ideas nbsp

A:Replacement motherboard won't power up

Short the 2 power switch pins on the motherboard with a screwdriver.
 

http://www.techspot.com/community/topics/replacement-motherboard-wont-power-up.191337/
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Hi all first post on here Did my first self build last week with help from a friend Motherboard power My PC, Dead? No to Is ASUS P Q SE W EZCool PSU Mb nVidia GeForce GTS Intel Core Quad GHz Gb RAM Gb Gb Hard drive Windows bit Built it last week and its been having problems powering up Sometimes it doesn t start when I turn it on at the front sometimes it turns itself off when on crashes or resets itself I looked around for what problems it may be and decided to try updating the drivers but when I turned it on nothing No lights no fans no beeps Replaced the PSU with another and still nothing the LED No power to PC, Is My Motherboard Dead? on the motherboard does not even come on and as I know its not the PSU I m thinking it must be the motherboard I ve only had it up and running for a less than a week could my motherboard be dead already I really don t want to shell out another to get a new one Any suggestions Cheers nbsp

A:No power to PC, Is My Motherboard Dead?

Hopefully, you're 100% certain that the PSU that you used as a replacement really is 100% functional.
Simple possible causes of your troubles include:
Faulty wall outlet or bad power strip or UPS (Plug a lamp into whatever power source you are using--obviously, if it won't light, your computer won't turn on either.)
Defective power cord
Bad on/off switch on the case
Poor cable connection (bad wire or connector not tightly plugged-in)
Power supply switch set to wrong voltage (switch set to 115 when mains are 220)
PSU power switch not turned on
Make sure everything is seated properly--cpu, gpu,ram, etc.
Make sure nothing is short-circuiting inside the computer ( a wire, loose screw, etc.)
These are the simple problems.
I'm not a computer expert, so hopefully, someone will chime-in, after you check these basics, should there be a need.
 

http://www.techspot.com/community/topics/no-power-to-pc-is-my-motherboard-dead.145163/
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I Motherboard/Power Question have an Intel D PBZ motherboard and an Antec smart power powersupply with a - pin fan signal The documentation with the ps says quot You may connect it to one of the fan connectors on your motherboard to monitor the fan speed of the power supply through your motherboard BIOS or through the monitoring software that comes with your motherboard Note The speed of the fan may be as low as RPM when temperatures are low At these speeds some motherboards may not be able to properly detect the fan speed and may generate false warnings of fan failure Please refer to your motherboard manual for proper fan monitoring set up quot On the motherboard there are three fan headers plus the one for the processor Two chassis fan headers front and rear and a Motherboard/Power Question VREG fan header Where does the ps plug into Can it be plug into the VREG or will that mess it all up One other thing what Motherboard/Power Question would u hook to quot Chassis Intrusion quot Thanks cY nbsp Motherboard/Power Question

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I am wondering if it is my friend's BIOS or PSU, as his computer will not show a red power light when switched on. I have tried different leads/sockets, but no response. Anyone help?
 

A:IS10 motherboard no power up

Does the computer actually work but the light doesn't come on or does the computer not turn on at all?
 

https://forums.techguy.org/threads/is10-motherboard-no-power-up.574185/
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My computer was working great.  I went out of town for a week and upon my return, it would not turn on.  The green light on the power supply was lit but that was as far as it went.  I purchased a mobo but this did not fix the problem.  I am not real computer literate but have experience.  Does this mean that the power supply is gone since no power seems to go beyond the light?  If not, can you tell me what to try?

A:Motherboard or Power Supply?

You can test the power supply (PSU) with these instructions.

http://h30434.www3.hp.com/t5/Desktop-Hardware-and-Upgrade-Questions/Motherboard-or-Power-Supply/td-p/5692596
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I`m trying to do my first build. I have a Gigabyte Core 2 Quad/Intel P43/DDR2-1200/A&GbE/ATX Motherboard GA-P43-ES3G motherboard. I`m trying to hook the power supply to the mobo but there is a 4pin Atx12 v connector and a 24 pin ATX connector. Now my power supply Corsair 750W TX only has a 24 pin power. Do I only need to plug in the 24 pin, or do I have to get some adapter for the Molex so I can plug the 4 pin ATX 12V?

Thanks
 

A:Motherboard POwer Connector Help!?

Yes you need to plug in both. There are adapters that convert the 4 pin Molex to a 4 pin 12V connector. Try a google search.
 

https://forums.techguy.org/threads/motherboard-power-connector-help.980129/
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I am building c computer and have aUniversal Pentium 3 motherboard DFI CA64-TN with a Intel Celeron 1.3 ghz processor. I can't get anything to power up. When I power it up the light on the motherboard lights up but nothing else powers up. The fan in the power supply does not spin.

Can someone help me please...I am at a lose as to what the problem is.
 

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Hi guys I was messing with my desktop today and I dont know what I did but now when I press the power button nothing happens. I have jumped started my PSU (Power supply) http://www.overclock.net/faqs/96712-how-jump-start-power-supply-psu.html and that works.

I have connected the POWER SW, POWER LED, HDD LED and RESET SW. When I jump started the PSU The fan on the PSU worked but the fan inside ther computer didn't. What can I do. My motherboard is GA-8S661FXM-755

Thanks In Advance
 

A:Solved: Motherboard not getting power

If you had the front panel switches and LED's disconnected maybe one of them is connected wrong. Disconnect all them and try jumping the system by shorting just the two pins for the front panel power switch.

Also, try another power supply.

And what were you messing with in the PC? Whatever it was may be the problem; disconnect or remove it and see what happens.
 

https://forums.techguy.org/threads/solved-motherboard-not-getting-power.791705/
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I was replacing a fan in my case because it made a high pitched sound. I took it out to test it to make sure there wasnt too much pressure from the screws inside the case that were causing this noise. I unplugged one of the molex connectors from my gfx card to test it. It still made the sound so i plugged the molex back into the 2 molex to 6 pin connector and the computer shut off immediatly. Now when i hold down or just push the on button my led flashes and fans spin and stop repeatedly. Any Help would be just the best thing right now.

~Thank you

Matt
 

A:Motherboard or Power supply

NEVER unplug or plug in anything except maybe case fans inside a computer with it powered up! Pull out the video card and see if the computer powers on. If it powers on you have fried the video card. If the computer still doesn't power on, the power supply should be changed before you suspect the motherboard
 

http://www.techspot.com/community/topics/motherboard-or-power-supply.133631/
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Hi

My pc won't properly boot up (i.e. all the fans turn, but there's no video input), so I have troubleshooted all parts. Eventually I put my PSU in another computer, to find that that one didn't boot at all. I concluded the PSU had to be broken.

As a last test I used a multimeter to manually test the voltages of the 24-pin connector and found that they were all next-to perfect.

Does that indicate that the PSU is healthy, and my motherboard must be dead?

Marty
 

A:Power supply or motherboard?

Marty9231 said:





Does that indicate that the PSU is healthy, and my motherboard must be dead?Click to expand...

No. It just means that under essentially no load the PSU is delivering the proper voltages. The voltages supplied under load may dip well below what they are supposed to be.
 

http://www.techspot.com/community/topics/power-supply-or-motherboard.164701/
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OK here is the chain of events Turn off computer at Had pizza Power Up computer at While I'm walking away I think I hear a rather remarkably loud beep or maybe two beeps Either way when I come back to my computer it's powered on however the monitor shows quot No SIGNAL quot I go through the standard try the monitor on another computer check the cables etc After a few more tweaks I power the computer up Still no signal Another power up later I notice there is no POST beep I check everything and try again No post I or supply Motherboard? Power reset CMOS no post I notice at this moment that the VIA chip fan isn't spinning I unplug all peripherials and try again Power supply or Motherboard? no POST the computer comes on for a brief second then everything stops the PSU fans computer fans everything Now that's all I get it's Power supply or Motherboard? like the car starts but doesn't turn over I'm assuming this is either a powersupply problem or a mother board problem How do I narrow it down My MAJOR concern is I have segate drives RAID ed the one for speed I think if I get a new mother board I need to keep this info is that possible So I guess in order of priority here are my questions How do I get my data off my Raid drives Is this a PSU issue Or a Motherboard issue Power supply or Motherboard? Sorry about the meandering nature of the post but it's am and I'm really out of sorts worrying about this Thanks in advance Shaun ABIT KR - R AMD AThlon XP strips GB segate barracuda RAIDed drives NVIDA GeForce Soundblaster Live Windows XP pro SP

A:Power supply or Motherboard?

Check to see if the CPU was installed correctly and have not come "loose". Also check the pin that powers the CPU fan and see if it is seated securely.

http://www.techsupportforum.com/forums/f10/power-supply-or-motherboard-22885.html
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I have the whole thing disassembled and I don't see any phisical damage other that a bit of really old dry milk right above where the hard drive was, when I plug it in the charge led only flashes on for a sec and then goes off no idea why, is there an issue with the change port? If so where can I get a new one?

http://h30434.www3.hp.com/t5/Notebook-Boot-and-Lockup/Nothing-attached-to-the-motherboard-is-getting-power/td-p/5788971
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Hi

My PC starting having failures on boot-up which I thought might be hard drive related. I swapped the C drive for another with a clean fresh install of XP Pro but no joy.

The system loads the bios and gets past the stage where I think it says 'verifying DMI pool data....' and when the windows logo comes up it just dies. The fans are spinning but there is no activity.

I'm sure I can hear a sound like a switch going when the install dies. Anythought as to what it might be and if it might be a costly thing to fix?

Thanks a lot.

Rzme
 

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My computer recently had a failed fan in the power supply unit I took the machine to an official computer tech company and they replaced it I brought the machine or Supply Power Motherboard? home used it once I turned off the machine unplugged it to use outlet for another computer I then replugged in the machine with the new power supply and nothing happened when i turned on the machine Nothing nada zilch No noise no video no nada I see a green Power Supply or Motherboard? light on the chip board inside the unit so Power Supply or Motherboard? i know its receiving power but no Action Is this my motherboard now and maybe my processor The tech s say that i need a new motherboard and processor But i dont trust them anymore after my replaced power supply and now dead computer Any suggestions on the logic of what s happening with my machine PLEASE HELP I m an end-user not a tech so I just need this all to make sense Thank you nbsp

A:Power Supply or Motherboard?

Hello there and welcome to Techspot!

I feel your pain. We've all been there. Not that sympathy makes things any better, but you have mine.

It is hard for us to tell what is wrong with your system without looking at it of course. But maybe we can help you confirm a few things.

You say you can see the green LED light is lit up on your motherboard. That's a good thing. When you push the power button, no fans are spinning at all? Not a good thing.

It could be any number of things, and the tests that need to be done involve removing parts to help troubleshoot. Do you feel comfortable doing these types of things?

Try unplugging and reconnect your power supply connections to the motherboard.

I would also test your computer case's power-on button. This is done by disconnecting the small 2pin cable from your case that goes to your motherboard, then using a screwdriver to quickly touch the two pins that that cable was connecting to. This will short the pins, and hopefully start your computer. If it does, then your power switch on your case needs replacing.

Other than that, I would try this test to see if you can get the power supply fans spinning: http://modtown.co.uk/mt/article2.php?id=psumod

If the fans on the PSU don't spin, then you have (another) dead power supply.

If the fans on the PSU do spin, then we have narrowed you down to either a dead motherboard or a dead CPU (probably motherboard)
 

http://www.techspot.com/community/topics/power-supply-or-motherboard.50694/
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Power issue or the motherboard issue

Hello
Not sure where to post this so I'll put it in here. I've been building new computers for a while but i still get the occasional problem that is new to me. Just built a new system and all seemed easy enough, but after plugging the power in, yet before i pushed the power button, the power LED came on and the system fans started working.I also noticed the monitor flashing too! I was too scared to push the power button in case i fry the whole thing. Can't find any mistakes please help!
 

A:Power issue with the motherboard P35-S3L

Your power supply may be defective. Try another one
 

http://www.techspot.com/community/topics/power-issue-with-the-motherboard-p35-s3l.86064/
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I have a P6vem3 mainboard and everything seems to work but the monitor will not come out of standby.
I get a post code of E9 and I have seen EE pc analyzer. I put in another vga card, but
the same thing happens when the computer starts. It gives a single continuous beep.
Should I replace the power supply, I'm not sure what to replace it with. Or should I just buy another motherboard?
Please help,
Thank you
 

A:motherboard vs power supply

It sounds like a issue with the memory. If you have the mainboard manual see what a long continuous beep means. more then likely its bad memory so try to buy new RAM if that dont work buy a new mainboard
 

https://forums.techguy.org/threads/motherboard-vs-power-supply.641218/
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Hey let me Motherboard Power Socket start by saying I m fairly new to this so please bare with me when it Motherboard Power Socket comes to a lack of calling things by their actual name I ll try and be a descriptive as possible I ve Motherboard Power Socket been using computers for a while now I ve made some small upgrades such as more memory DVD drives graphics cards etc and feel fairly confident so decided to build my own from scratch I ordered all the parts being careful to check everything was compatible with everything else and I was happy when they arrived about an hour ago all new and shiny with quot that quot smell I flicked through the manuals pulled up a few guides online and got to putting it together everything was going fine until it came to plugging the PSU into the motherboard I can see two power plugs coming from the PSU one has pins and plugged into the motherboard perfectly fine One has slightly more pins and I found the socket for that too but upon plugging it in I noticed that the plug was shorter than the socket leaving squares of it empty I made a crude diagram to explain The quot plug quot coming from the PSU is slightly longer than my drawing but the white area is the same I have unused um squares on the Power Socket Now the plug does fit in fine with no effort but I m afraid to power it on incase something goes wrong - Any suggestions Or am I worrying over nothing nbsp

A:Motherboard Power Socket

yeah!,you got me confused with "Plug/socket"

Assuming you have the standard ATX type;

first to look for is how many pins you have in your motherboard & that will tell you if you have a matched number of pinouts with your PSU molex connector.ATX power supplies have either 20 or 24 pinouts as well as with motherboards.

if you have your PSU's molex connector exactly like this then you have no problem.otherwise you need to send back the PSU to the seller & ask for the appropriate one..just to be safe
 

http://www.techspot.com/community/topics/motherboard-power-socket.97199/
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I just got a new motherboard and case and I installed the motherboard but it wont start. I hooked up everything correctly, yet it still won't turn on. I tried just hooking up the minimum to narrow the problem down. Currently I just hooked up the power supply to the motherboard, and connected my HD and the front panel buttons (so i could turn it on). Still that doesn't work. I tried different oulets and still nothing. I have no idea why this isn't working, I have put together a few computers in my days and this one seems to be more stubborn then the others. Any help would be great!
 

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Hi... my troubles started on Thursday I think....
My sister turned on the computer, went away to do something when suddenly my computer turned off... when she hit the power-switch on the powersupply from off to on the computer started up for about 4 seconds before it shutdown again...

... and so I came home, went to hit the power switch and nothing happened, so I flipped the O - I switch to on and low and behold the computer booted up for about 3 seconds... I heard the whirring of the fans and a single beep before everything powered down. I've tried another power supply, its a bit weaker and doesn't have a P4 connector that is required, that one also showed the same results...

A:Power or motherboard problems?

CPU problem my guess.... Check if your fan works at all, if that’s working hmmmmm could be a bad CPU.

http://www.techsupportforum.com/forums/f10/power-or-motherboard-problems-240543.html
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I am working on my aunts PC HP slimline supply? Is or it the power motherboard again This Is it the motherboard or power supply? time it will not turn on seems relatively easy problem I press a power button Is it the motherboard or power supply? and exactly Is it the motherboard or power supply? nothing happens not even PSU fan spins I do not have a tester for FLEX PSU they have that tiny pins and not regular size ones but I take it out and cross the green wire PSU on with black ground wire and the PSU turns on hmmm So I independently test out each voltage on all wires and they all come out with proper voltages I put the PSU back in and I test out the power button and its wires and they are fine I even crossed the pins on the motherboard to get it to turn on and nothing The thing I can not get my head around it that in every motherboard failure I was a witness to I was at least getting some PSU response fan spinning That is why at first I thought it was PSU for sure but I do not have spare FLEX ATX PSU as they are not common at all Would I be wrong to assume that motherboard went south The way I see it ifI get a new motherboard for a lot less than new FLEX PSU with standard power supply plug I can just put the PC into normal chassis I have spares and use one on my many spare ATX PSU s and eliminate both possible sources of error weather it is a motherboard or FLEX PSU Thoughts Thanks nbsp

A:Is it the motherboard or power supply?

Assuming the fuse in the power cord is fine, I would suspect the PSU to be at fault.
 

http://www.techspot.com/community/topics/is-it-the-motherboard-or-power-supply.169044/
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Why is it that AMD socket motherboards specify CPU power limits and Intel socket motherboards do not. (yes I did google)

Edit: It's not a quiz question! It does suggest another reason for Intel to be a better option - better CPU power management.

I would have expected some hardware buff to know the answer

A:Motherboard and CPU power restrictions

Bump
If no response then Admin pls delete as a waste of storage space.

http://www.sevenforums.com/hardware-devices/280172-motherboard-cpu-power-restrictions.html
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Hey guys, I have an hp pavilion ze4115 laptop, the problem is that the power connection on the mother board has broken off and is no where to be found. most people are saying i need a new mother board. does anyone know where i could get a connecter and solder it on, or any other temperary, rig, that will work short term, thanks.............
 

A:power connection on motherboard

You need to open up the laptop and repair or replace the jack. The jack may actually be stuck inside the laptop and may just need to be re-soldered. You can also buy replacement jacks from places like this: http://www.laptoppartsexpert.com/i-59650-dc-jack.html The repair itself takes time, a steady hand, and good use of a soldering iron.
 

https://forums.techguy.org/threads/power-connection-on-motherboard.631428/
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Hi
I have a asus me-99B celeron 500Mhz motherboard, it will auto power up whenever time goes to 00:00:00. any comment is welcome. Thanks

Sunny
 

A:motherboard auto power up

frist i would check any auto power on option in bios
 

http://www.techspot.com/community/topics/motherboard-auto-power-up.38054/
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I have a s446 motherboard. It came with a 350 watt power supply in the kit I purchased. I would like to buy a bigger case and the one I like comes with a 450 watt power supply. I looked at my manual and searched on the internet but I can't determine if it is safe to hook my motherboard up to a 450 watt power supply. If anyone could help I would really appreciate it. Thanks.
 

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Dear all I have tried reformatting with different OS - Vista x and to reboot? causes Motherboard Power windows x but when playing certain games I get BSOD or just a reboot without the BSOD prompt reboot has been disabled in the system failure option The Motherboard I use is Abit AW D-Max which has the pin connection pin Molex and the pin connection for power inlet Now the pin Molex cable is shared with few Power to Motherboard causes reboot? of my other devices such as sound card and fans since I only got cables Molex connectors in total supplied with the PSU So I am trying to get hold of more Molex cables from Enermax so I can just supply the power direct to the motherboard without sharing it to see if this stops the reboots but no luck no-one has them and they are out of stock I have tried registry programs Trojan removers reformatting updating drivers re-installing games memtest prime etc The results with memtest shown no errors when run for hours Now I have installed Vista eternity x since the sound card console launcher was not functioning with windows and I cannot get to select what mode I want to run the sound card - game entertainment movie - after a few days of install so I do not know if it is do with some windows update that disables this functioning of the sound card CPU Intel Q Ghz Core Quad Processor Q M Cache GHz MHz FSB MOBO Abit AW D-Max SOUND CARD Creative labs Elite Pro X-Fi GPU EVGA GeForce GTX CO-OP Hydro Copper Video Card - MB DDR PCI-Express PSU Enermax Revolution ERV EGT w PSU RAM OCZ Reaper HPC Edition Dual Channel GB x GB Memory - DIMM -pin - MHz PC - TOWER Thermaltake Kandalf LCS VD BWS Full tower Water cooled HDD Western Digital Caviar SE GB AAKS SATA II MB Cache OS Windows x Final OEM and Vista Eternity x and other components such as Aero Cool FP- -in- Card Reader And LCD Bay Controller and UV strobes and Large Fans and other items I cannot remember The only thing I can suggest is that the sharing of the power cable pin Molex maybe causing the reboot when computer under stress For a few days since I have reformatted with Vista x when I am watching movies using power DVD etc and doing other background activities such as downloading or installing the computer reboots The same happens with windows x I did have a problem when I was installing windows updates and installing other software where the computer rebooted a few times could this have caused the windows updates to be corrupt Hope someone has an idea what I should do Thanks in advance Regards Jazz nbsp

A:Power to Motherboard causes reboot?

I was trying a reformat with Vista Eternity x64 again last night -->
Installed the driver for the GPU and was installing windows update and browsing the website - when the computer rebooted without the BSOD even though I disable auto reboot at system failure. No other drivers were installed such as for my sound card etc.

So does this rule out that the sound card could be the cause of the reboots and that likely the power supplied to the Motherboard could be the issue?

Anyhow I have given up and re-installed windows 7 x64 7600...

The following actions carried out ? Installed the drivers for GPU and sound card, anti virus (Kaspersky), regcure, Tune-up utilities, Xoftspy, Ccleaner, Microsoft office 2010, Winrar and Windows updates.

All seems to be running good and I can take control over the sound card to change the configuration of it --> game mode, entertainment mode etc and can control it using the hub - 3d effects volume control etc etc.

Created a restore point and went bed ^^

Tonight I will install the rest of the software - such as Batman Arkham Asylum and see if the computer reboots and make logs on what software I install / what actions I took before I lose the ability to take control of the sound card configuration and random reboot.

The one issue I am betting on is the power supplied to the motherboard, BUT I cannot rule this out as I need to get extra PSU 4 Pin Molex cables and they hard to get.

Regards
 

http://www.techspot.com/community/topics/power-to-motherboard-causes-reboot.141250/
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The led on the motherboard will go on for a second and then go off when power cord is inserted to plugin or when power is turned on.
 

A:Led on motherboard comes on and goes off when power turned on

Thanks for that interesting piece of info.
 

http://www.techspot.com/community/topics/led-on-motherboard-comes-on-and-goes-off-when-power-turned-on.25727/
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I have a GiGABYTE motherboard, an intel Pentium E500 LGA775 processor. I tried to new power supply and still cannot get a signal. I checked wires and cable on mb and push pwr button. But, still unable to get pwr to mb or computer. No fan, or no sign of power. Please assist..Help!!! Thank you, lgrj...~
 

A:No power to motherboard from PSU, zero power

Check to see if there is a voltage switch on the back also check the plugs to see if no fuses have blown.
 

http://www.techspot.com/community/topics/no-power-to-motherboard-from-psu-zero-power.158867/
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I recently problem Supply Motherboard/Power decided to upgrade my computer big time by purchasing a new motherboard and processor and power supply case Anywho it is a KD -E motherboard an AMD Athlon XP processor and a watt power supply The processor doesn t seem to be the problem though so that shouldn t be anything to worry about I put the new MB in to the case and hooked it all up correctly I triple checked it a million times It simply would not turn on at all until I hooked a friends power supply in to it and that seemed to sort of jump start it It came on the fans and the lights and it would seem to go just fine but then it would sort of hiccup and die We hooked my power supply back in to it and it started working but hiccuping just like the other It would start up fans and all then Motherboard/Power Supply problem they would just die all of a sudden It seems that it runs longer though if you hold down the power button for some reason At first I just thought the power supply or the motherboard was fried but that cannot be it since they both work just not well I think it might Motherboard/Power Supply problem be a short in the motherboard maybe And it is not a lack of power either It is a watt power supply and that would be enough I believe That and my friends who we hooked in to it was a watt power supply and that is more then enough Anywho dunno if anyone has heard of anything like this before or have any suggestions or tips but I would really appreciate it I d like to get it working instead of having to send it all back to get new stuff which would be a major pain Thanks nbsp

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Hi All

I hoping someone can help me, I have a 2.6ghz celeron emachine, but it won't powerup.

everytime you press the power switch the cpu fan spins for 1 second and then stops there is no beeping from the machine and no reaction on my monitor.

I have remove all the ide cables and memory but still no joy.
the machine has a p4I65g prescot 800 ASRock motherboard, could the onboard battery be the problem?

Hope you can help me

Zapster
 

A:emachine Askock motherboard power up?

Hi Zapster,

If you were refering to the CMOS battery when you wrote "onboard battery". I don't believe that is the problem. If the CMOS was bad your BIOS settings would not be saved, but it should still boot. Even though the fan spins, you may have a power supply problem. I would make sure all the connections in the computer are secure, make sure the memory is seated correctly and in the correct slots, then try booting again. If you are not able to boot then I would try another power supply or systemboard. I hope this helps.

Watford Outlet
 

https://forums.techguy.org/threads/emachine-askock-motherboard-power-up.567698/
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i don't know how these prongs got unplugged.. but i'm stuck here.. i get no connection with my monitor (almost as if it wasn't plugged in to the mb) and i can't turn the computer off through the switch on the front. i understand that these prongs are for power.. but i don't know which ones go in which slots. hopefully this is the reason the monitor is not functioning and i know it's why the power switch won't work.

here is a pic of my problem.. any help would be greatly appreciated

 

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I have a HPa c for starters The mobo died and I purchased an INTEL D GCL FSB DDR PCIe X SATA to replace it I installed the mobo into the tower making sure heatsink compound was in place all the cables pulled and the placed on the new mobo one at a time to insure that all cables were in the correct ports I have double checked all connections to insure proper placement of the cables had the power supply checked pulled everything lose and applied one at a time to see if there was and issue elsewhere I have power to the board because the led light on the board lights up I have put the Intel P in properly and still have no reaction out the tower when I press the power button Can it be as simple as a power switch gone bad or is there something I am power New and installed not will motherboard up computer missing here There is a connector on the board for power led but I have no cable to apply to this connector HELP nbsp

A:New motherboard installed and computer will not power up

When you say you cannot connect to the board for power/led do you mean that you don't have a case front panel cable that connects to the small 2 pin jumper that sits just above the regular 9-pin front panel pin out block? Or do you mean that you cant connect to the 9 pin block? The 2-pin jumper is just for the case "power on" light and is a duplicate of the pins on the 9 pin block (the green number 2 and 4 pins)
Basic troubleshooting: Are you satisfied that the cpu socket has no bent or broken pins?
Is the RAM compatible with the motherboard- vendor/voltage/speed/capacity ?
Have you checked to see if the CMOS battery is dead?
Are you sure your previous motherboard died and it wasn't the cpu at fault?
Did you check the power supply for adequate power delivery?

Post back with the steps you have taken so far.
 

http://www.techspot.com/community/topics/new-motherboard-installed-and-computer-will-not-power-up.140515/
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I've had my t430s for almost a year now and have been basically happy with it/no issues thus far.However, this morning I went to boot it up and it's completely unresponsive - no lights when plugged into A/C, no fan whir, nothing.  I've already tried the 30 sec power drain trick, verified the charger works, used an alternate lenovo charger(from a t430),removed the battery, both RAM cards, SSD, CMOS and attempted to identify the issue using the various steps recommended in the user guide, but to no avail.I suspect this to be a MB issue or possibly power socket related.  Alas the laptops factory warranty expired in June as it was purchased secondhand(and registered by me after purchase).  Any and all suggestions would be appreciated.

A:T430s won't power on - possible motherboard issue?

Well, I have replaced quite a few power jacks on T420s/T430s machines, but if that were the problem, you would have gotten low-battery warnings ahead of time.  When you disconnected the CMOS battery, did you let it sit a few seconds before plugging it back in?  I always let it sit for 5 seconds and then I press the power button 2 or 3 times before putting it back.  This drains all the capacitors.  (I assume you know that the main battery also needs to be out and the machine unplugged.)

https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/T430s-won-t-power-on-possible-motherboard-issue/td-p/3425725
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Hi,
I replaced a motherboard, processor and memory. All should work with each other. I got everything connected and cannot get the power button to work. I have tried it every different combination that I possibly can. The led on the mb is on. Any suggestions? I can't even get it to do anything. This computer worked until I took out the old parts and replaced them wiht new. Is it possible the MB is bad?
 

A:problem with power supply and motherboard

Yes, the board could be bad; but, more testing is in line before deciding that.

Are you certain you have the power-on switch connected to the proper pins on the board? Thoroughly checking this is a must. Study it carefully.

Is it possible you have the CMOS-clear jumper set to 'clear'? I have bought boards that had this setting out of the box. I never could figure why they would do that; but, they did.

Are you certain the processor is fully seated into its socket? And, are you certain there are no bent pins?

If you have checked all of the above and found nothing amiss, disconnect everything from the board and remove all add-in cards and see if it will power up.
 

https://forums.techguy.org/threads/problem-with-power-supply-and-motherboard.888326/
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Just to let everyone know first, I'm not very techy/good at this stuff. I know several things but I'm far from good haha.
So my problem:
Every time I turn on the power for my computer the fans run but the light on the power button blinks once and then stays off. I have to try several times to hold the button/turn it off and then try turning it on again before it totally starts. I'm wondering if this is just a power supply problem or a motherboard issue? I've got an Acer Aspire AX3400-E2202 AMD Athlon IIX2 215 dual-core processor.
Also, if I were to get a new power supply unit would I have to stick to the watts of what it is now or could I move up to something like 300?

Thanks in advance
 

A:Motherboard dead or power supply?

Yes try a new power supply first... 350 to 500 watts is okay
 

http://www.techspot.com/community/topics/motherboard-dead-or-power-supply.170415/
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For the past few months I ve been using XPs power management features standby and hibernate on my PC which uses an ASUS motherboard with Athlon processor interaction mgmt power XP motherboard & For the past few weeks I ve been having system XP & motherboard power mgmt interaction failures where the system rebooted XP & motherboard power mgmt interaction with no error indication After trying many things including new BIOS level new memory new processor the problem was finally traced to a defective power supply So now I m running solid again - but - can t use Standby or hibernate modes anymore XP & motherboard power mgmt interaction The proper features are activated in the BIOS but XP doesn t seem to recognize that For example when I go to START - TURN OFF COMPUTER the Standby option is greyed out and can t be selected When I hit the power off button on the PC that doesn t trigger standby mode either as it did before I don t understand the interface between XP and the motherboard BIOS on these features so don t know where to look for the problem I suppose that the motherboard might have been damaged by the bad power supply but maybe I m just missing something simple - any ideas nbsp

A:XP & motherboard power mgmt interaction

First thing I would look at is if ACPI is reported to be "working properly" in Device Manager.
 

https://forums.techguy.org/threads/xp-motherboard-power-mgmt-interaction.190976/
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Is it possible to have a motherboard corrupt a power supply?

I have a computer that quite working and I suspected the power supply. I installed a working power supply but that did not help. When I checked the voltage levels on the power supply, the 12 volt pins were only at 11 volts.

Did my motherboard wreck my ATX power supply?

Any help would be appreciated
 

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HI,

My Acer Aspire 7730 has no power (no lights at all).

Originally I had a problem with my power socket. I then re-soldered it and it worked fine for 6 months. Then one day it stopped working. First I tried a new plug. I didn't want to re-solder again so I ordered a new mother-board from ebay. I installed it but still no lights came on, the seller said the m/board was fully tested but accepted a return. I have now installed a second fully tested m/board and have the same problem. I have tried removing the ram and hard drive. But still no lights when plugged in. I could understand if it wouldn't power up because that might be a hardware fail but its the fact theres no charge that confuses me. Oh and I'ver tried the 'hold the power button 30secs' trick too.

Please help
 

A:No power to laptop -- tried new charger and even new motherboard

Well, if you've tried two motherboards, then you could try with a different power socket/power adapter?
 

http://www.techspot.com/community/topics/no-power-to-laptop-tried-new-charger-and-even-new-motherboard.179154/
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I have a power supply of ATX 12V V1.3 and my motherboard has a label says "24-pin ATX V2.2 Power Supply." Are these two components capable? Will there be any kind of problems that might occur such as pc shuts off itself and automatically restarts?
 

A:incapable power supply with the motherboard

Hmmmmm......

Are you sure you don't mean "compatible"? If the PSU has a 24 pin plug for the main connection to the board, then it is. Earlier PSUs have a 20 pin plug for the mother board. some PSUs have something called a "20 plus 4 connector" which will work for both new and old motherboards. Since there is only 1 plug (the main board connector) coming out of the PSU with anywhere near that many pins, simply count 'em. 2 rows of 10, no worky, 2 rows of 12 in like Flynn.

Here's a Newegg tutorial on power supplies: http://www.newegg.com/ProductSort/CategoryIntelligence.asp?Subcategory=58

Here's a picture page with the connectors marked: http://www.newegg.com/Product/ShowI...+CUL,+TUV,+FCC,+and+CB+certification+-+Retail
 

http://www.techspot.com/community/topics/incapable-power-supply-with-the-motherboard.83824/