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No power after motherboard install

Q: No power after motherboard install

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.

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Preferred Solution: No power after motherboard install

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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.
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I have had issues with BSODs for a while, now. I have had the hard drives, RAM and graphics cards professionally checked.

I installed a new motherboard, reinstalled Windows 7 (again) and installed a new power supply as the old one was on its last legs. Any help greatly appreciated as it is driving me crazy!

Attachment 262228

Kindest regards,


A:BSOD after clean install, new power supply & new motherboard.


Firstly please install Windows Service Pack 1 as it will increase system stability.
Then once installed please run Windows Updates and install the latest updates.

From your crash dumps:

* *
* Bugcheck Analysis *
* *
Use !analyze -v to get detailed debugging information.
BugCheck 1A, {403, fffff6800004a950, f020000088fd9867, fffff6800002cc50}
Probably caused by : win32k.sys ( win32k!SURFACE::bDeleteSurface+3c8 )
Followup: MachineOwner
0: kd> !analyze -v
* *
* Bugcheck Analysis *
* *
# Any other values for parameter 1 must be individually examined.
Arg1: 0000000000000403, The subtype of the bugcheck.
Arg2: fffff6800004a950
Arg3: f020000088fd9867
Arg4: fffff6800002cc50

Usual causes: Device driver, memory, kernel

Driver causing issues:

fffff880`08c9d868 fffff880`0498ac05Unable to load image \SystemRoot\system32\DRIVERS\nvlddmkm.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
nvlddmkm nvlddmkm.sys Thu May 14 21:48:07 2009

Please update your driver as it is outdated, choose Option 2:

Run SFC to check the integrity of all Windows 7 system files:
Click on the Start > Type in search cmd
Right click cmd at top and Run as Administrator
Type SFC /scannow at the prompt
(Note: there is a space between SFC and /scannow)

You dont appear to have an Anti-Virus Installed, please install:

Microsoft Security Essentials.
Recommended from a strict BSOD perspective, compatibility & stability
compared to other antiviruses/internet security software.

If your issue still remains after you have carried out the above:
Take memtest. Run for 8 passes and test each stick in a know good slot for an additional 6 passes.

Run these tests overnight

Post back any results/observations

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Gateway FX E Processor Intel Core i - Processor GHz install to motherboard power any you 5770 plan another can / Radeon supply recommend? with Turbo Boost Technology up to GHz MB Smart Cache Operating System Genuine Windows Home Premium -bit Memory GB DDR Dual-Channel MHz Memory x MB Memory Capacity DDR Slots Total Slots Available Hard Drive TB SATA hard drive Green Product - variable RPM Video ATI Radeon HD Graphics card with GB of Discrete Video Memory Optical Drive X DVD -R RW SuperMulti Drive Power Supply W Power Supply Application Software Microsoft Works amp Microsoft Office Home and Student -day complimentary trial period Audio High Definition Audio with Audio Support Available Expansion Slots Available - PCI-E x - PCI-E x - PCI Chassis High performance black glossy design with trendy red accents any motherboard / power supply can you recommend? plan to install another Radeon 5770 and lighting effects Dimensions Box quot H any motherboard / power supply can you recommend? plan to install another Radeon 5770 x quot W x quot D or mm H x mm W x mm D Dimensions System quot H x quot W x quot D or mm H x mm W x mm D External Ports USB Front Rear HDMI PS DVI Audio High Definition Headphone Jack High Definition Microphone Jack Keyboard Multimedia Keyboard Media Card Reader Multi-in-One Digital Media Card Reader with PhotoFrame Button Motherboard Systemboard with Intel H Express Chipset my question is do you have any recommended power supply and mother board to support another Radeon another question will i have to upgrade any thing else to get this to work I just wanna upgrade to Crossfire config i should have the RAM and processing speed i need already nbsp
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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.
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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.
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PSU: Seasonic M12II 500W

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.
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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.


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

Sounds like a Power Supply problem.
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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.
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A:K7 motherboard will not power up after power outage

Steve1 said:

Any help would be appreciated.

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...
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A:Need Motherboard Id To Install Motherboard Monitor

In the BIOS.
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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?
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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:
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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
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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.
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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

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.
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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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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.
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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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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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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.

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?
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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


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.
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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: The repair itself takes time, a steady hand, and good use of a soldering iron.
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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.
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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.


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.

:wave: Welcome to TechSpot :wave:
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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.

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~Thank you


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
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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.
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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
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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


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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:

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)
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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...
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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
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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.
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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.


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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


A:motherboard auto power up

frist i would check any auto power on option in bios
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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


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

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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]
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Power issue or the motherboard issue

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
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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.
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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.
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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?
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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?


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.
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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?


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

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


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.
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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.

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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
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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!
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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.

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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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.
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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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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.
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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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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.
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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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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.
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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

If no response then Admin pls delete as a waste of storage space.
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A:Motherboard power connector

Just checking but did you also plug in the P4 12V ATX connector on the motherboard?
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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.
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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.
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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.
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A:Motherboard and Power Supply Issue

Dell lied to you, the motherboard has no idea on the wattage of the power supply, it simply draws as much as it needs. That said Dell's are cheap systems.

The power supply you got isn't of the best quality, and it may also be faulty. Return it for a higher quality brand and see if that resolves your problem.
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since my build keeps changing from day to day i keep needing new advice and opinions on what to do with it it changes partially due to my proposed budget and partially because i find that i want to plan more for the future and include certain features my biggest concerns are as i suggested in my title my concern with my motherboard is that it s from asus http www newegg com Product Product aspx Item N supply power Motherboard and concerns E it was selected because of it s price and the features it offers i need ide pata ports a few SATA ports at least pci-e x at least pci at least x pin pc memory slots and an LGA slot but since this one is from ASUS and has lots of complaints and ASUS is going downhill i m hesitant to buy this board i m not exactly going to have an awful lot of money to Motherboard and power supply concerns throw around for RMAing parts i d like something that s high quality offers what i want and doesn Motherboard and power supply concerns t go very much higher than dollars i tried looking into a gigabyte board but i can t find one that has ide pata slots for a good price or that doesn t have so many problems the other concern is whether or not the psu i selected will power the system well enough i ve selected the Corsair CMPSU- VX http www newegg com Product Product aspx Item N E my Motherboard and power supply concerns concern is the amperages offered on the v rail i m not sure if it has enough let alone how to calculate whether it has enough here are the specs i m trying to run intel core duo E conroe gigabytes G Skill ddr memory geforce gt mb dvd drive x speed x gig hard drives the ones listed in my current specs eventually i ll buy a new one that s sata x mm fans and possibly up to x is the corsair i ve chosen good enough or do i need to go with a higher end model this part was again selected for price but also because i know it s a strong psu and good quality if this one isn t enough i ll move up to an antec neoHE or an antec earthwatts but for now i d like to see if this corsair will work nbsp

A:Motherboard and power supply concerns

*bump* come on people. advice please?
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I have a gaming rig with the following stats:

500W Power Supply
9500 AMD Q4 Chip
Don't recall what motherboard I put in there, but it was functioning
Nvidia GTX 260 Video Card
1x 1TB HDD
1x 400GB HDD

In any case, there was a decently big power issue recently, and although the computer was hooked to a power strip, I'm pretty sure there was damage done as the computer will not turn on now; I can press the power button but the computer will not respond, and I went in and double checked the connections to make sure all was in working order (it was). It was in perfect working order previously, with all cables and equipment functioning, and the BIOS and everything was up to date. My issue is that I have no idea what got shot, the motherboard itself, or the power supply. Any suggestions?

A:Power Supply/Motherboard Issue?

Can you borrow a power supply and hook it up?
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I have a pc with following spec

msi 6320 motherboard
1gig amd athlon chip
8 gig hd
30 gig hd
liteon cdrw
mad dog 16x dvdrw
512 mb memory

i just recently put in the dvdrw but since then, whenever i start the pc sometimes no power goes to the mobo and devices as if there is somthing wrong with the power supply then when I check the power supplies to the devices and retry sometimes it will boot up fine. I dont thing the is anything wrong with the drives or memory cause on different occasions I have tried with them removed and the pc behaves the same inconsistent way. I think there might be a shorts in the power supply or motherboard. Does anyone have any advice or opinion on what the problem might be? Thanks

A:pc with msi 6320 motherboard has power problem

Hi kohaiice, I was wondering how big your power supply is? When you have the power issue, try this, unplug the power cord, from the back of your power supply, and leave it out for about a minute, then plug it back in, and restart your system. If your system boots up fine, this tells you that your power supply is weak, and/or going bad.

You have a lot of components, in your system, I am thinking your power supply may not be able to handle it all. Try disconnecting your DVD-rw, and the slave hard drive, keep turning your computer on and off, to test, but wait a few minutes in between each restart.
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Hello I've been having issues with my old gaming PC and I would like to either replace or upgrade the components but I'm not sure what the issue is Here's a list of what happened - - years ago I was experiencing BSODs on PC boot so I decided to check each ram individually to see if one of them its causing the problem So I found that sticks were faulty so I removed them and I was left with GB ram - months ago Motherboard or Power Faulty Supply? I tried to turn on the PC and it was shutting down after seconds or it wouldn't even start at all no signs Faulty Motherboard or Power Supply? of power - So I decided to disassemble everything and clean my dusty fans there was a lot of dust inside the power supply and tried to boot again This time the PC was booting but with no display - So I removed everything expect the CPU Cooler and fans and tried to boot again Still no display no beeps and fans were spinning Is it safe to assume that my motherboard is bad Is there any other way to test it to make sure Because if it's the motherboard I might be replacing the whole system unless its the power supply that's faulty so I could replace it with a cheap one at the moment and upgrade the PC later Specs OS Windows bit CPU AMD Phenom tm II X Processor Motherboard ASUS M A TD-V EVO Memory GB DDR SDRAM Graphics Cards ATI Radeon HD MB x Cooling H corsair Hard Drives WDC WD AALS- L B ATA Device GB IDE x
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Hi, I have a gateway laptop that is not detecting the power cord. So it will not charge the battery or run off of ac power. I have taken it to a computer store and they determined the power cord was not the problem and recommended I get a new battery. Just got the new battery today and it is still doing the same thing. As far as I can tell the power jack does not seem loose. My cord snaps right in and stays in place no problem. So is the only solution left to replace my motherboard? Thanks in advance for any help provided!!

A:Power jack problem or motherboard? How to tell?