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

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

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.

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Preferred Solution: Led on motherboard comes on and goes off when power turned on

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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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Hi, my desktop had been shutting off by itself (i was just surfing the web or using other applications like word) several times a day for the past two days. But each time i can get it back on by simply turning on and off the switch at the back (the one next to power cord)

Yesterday night it turned off suddenly again and i smelled something burned. And I can't get it back on from then. I still see a light on the motherboard. Any suggestions on what went wrong?

(also, every time when i turn on my computer, there are some small sizzling sound, i don't know if i has anything to do with it..)

Please help!
 

A:PC Can't be turned on, motherboard light on

It could be that the power supply is on its way out or has died ... i had the same thing happen to me , i took the side case off and checked all the leads , i then took the power lead off the motherbard and found out that 3 prongs were burnt out and a few others were black , if this is the case its a new power supply and possably a new motherbard as well if the power connector looks burnt .

Rich
 

https://forums.techguy.org/threads/pc-cant-be-turned-on-motherboard-light-on.678809/
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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 All My G F s old EMachine T has no activity in the computer when its Has No On Power EMachine When Turned turned on It is a Windows Xp Desktop no frills model but she likes it and has gobs of stuff on it I suspected the Power supply unit as it had Nothing no beebs lites na-da I replaced it I aquired one off of Ebay It was exact part number etc Installation was normal When I turned on the power button The green LED on the EMachine Has No Power When Turned On Motherboard did light up I thought good here we go And that was it No H Ds spining nothing Nothing displayed on the monitor All the new Power Supply did was lite up the green motherboard LED Anything you kind folks can think of I swapped RAM unplugged each Drive unit even swaped the H D just to be sure Cant boot into Safe mode either Im suspecting a Motherboard too Whatcha guys think I know I know its an EMachine Thx in advance -Dez nbsp

A:EMachine Has No Power When Turned On

The gods do not favour this one
When the power supply went it may have taken out the motherboard as well
It may be time to give up on this machine.
With a bit of luck you should be able to hook up the drive as a slave in another machine and recover the data from it
 

https://forums.techguy.org/threads/emachine-has-no-power-when-turned-on.942355/
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I was playing a game and the Z70 shout down. It will not power on. The power light to show that it is pluged in is om amd when I press the power button the power on light comes on for 5 seconds the goes off. I tested the power cord even though I have to power light with no change. The system was not hot when it turned off. I pulled battery out and pressed the power button for 25 seconds still nothing. The laptop is 6 month old. If any one has any idea what to do let me know 

https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Z70-Auto-turned-off-will-not-power-on/td-p/3359961
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I'm fixing my cousin's HP desktop. It was working before. But one day this happened after he turned off his pc and met his problem on the next day.

Now, whenever the pc is turned on, psu is on, cpu fan and case fan spin but they will stop spinning in a few seconds. Then only those two fans stop spinning while the psu fan is still spinning and the power button on the case is still lit. When I turn on the pc, no beeps come out and nothing shows up on the monitor. It just remains black after the cpu fan stops. And the pc doesn't restart automatically like when cpu is over-temperature.

If anyone knows what the problem, please let me know. Thanks a lot!
 

A:Power Supply Is On But CPU fan turned off

Hello,

Has any cables been unseated?
Perhaps the PSU is at fault..if that is ok, then the Motherboard needs diagnosing.
If the lights come on, the PSU may still be at fault.. i.e not giving sufficient power for whatever reason.
 

https://forums.techguy.org/threads/power-supply-is-on-but-cpu-fan-turned-off.934168/
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today i was working with my pc 's power button to mount it into a different little case when the wires to the power button snaped,now what do i do,is there any way to turn the computer on without the power button and the computer being off or am i out of luck?
 

A:fix it power button turned bad

you can turn your motherboard on manually by getting any slim metal and then touching both power pins with the slim metal, you touch one pin from the bottom and from the top something, but if you don't want to struggle you might need to solder
 

https://forums.techguy.org/threads/fix-it-power-button-turned-bad.736947/
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Since pure alcohol, for example pure Isopropyl alcohol and distilled water are supposed not to conduct electricity. What would happen if I dipped a turned-on PCB into it? . What would happen to a motherboard?
 

A:Would a PCB or motherboard be damaged if dipped into pure alcohol/distilled water while turned on?

OUCH ! Your assumptions may be spot on, but OMG why would one try this?????????

There's something called 'leakage' - - current flow when it's not expected.

I was working in an aerospace lab and the the EE had me perform an experiment because I said "the resistivity of the salt water was too low and leakage would trigger the device". So we got a bucket of salt water and dropped the device into the bucket - - precisely 30 seconds later (the designed timeout), the bucket erupted and salt water spewed everywhere [yes, the device was an explosive link].

The trigger point for the explosive was <500ma
 

http://www.techspot.com/community/topics/would-a-pcb-or-motherboard-be-damaged-if-dipped-into-pure-alcohol-distilled-water-while-turned-on.215856/
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I built a pc recently, and I was following the simple steps to install Windows 8.1. I accidentally powered off my power strip, causing the computer to turn off. When I turned it back on it said "an operating system wasn't found. Try disconnecting any drives that don't contain an operating system. Press ctrl+alt+del to restart. I have tried all of this but it still won't work.
Thank you in advance

http://www.eightforums.com/installation-setup/73721-i-turned-power-off-while-downloading-windows-8-1-a.html
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Okay so last night my power went out for like half a second, and I was on my computer and it turned off also.

So how do I check if everything is okay?

~Thanks!~

A:My computer turned off when power flash...

Originally Posted by adeang


Okay so last night my power went out for like half a second, and I was on my computer and it turned off also.

So how do I check if everything is okay?

~Thanks!~



turn it on? I can't see how else you'd check

http://www.vistax64.com/general-discussion/227495-my-computer-turned-off-when-power-flash.html
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I'm using Windows XP and set the monitors to switch off after 10 minutes of inactivity. This works well for a while, maybe days, then the monitors will switch back on as soon as they are turned off. This can be returned to normal by restarting the computer, but sooner or later it will happen again. Your comments welcome.
 

https://forums.techguy.org/threads/monitor-come-on-as-soon-as-it-is-turned-off-through-power-setting.817466/
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Hi,

Just wondering, is there a way so that if for example, I have a video folder that is being shared on the network, to continue being shared, even if the computer is turned off? I want to be able to share my files 24/7 but I dont want to keep the computer running all the time. Is there a way to share while in a very low power state?

Thanks
Jitin

A:Sharing with computer turned off/low power?

No, you'd have to wake the computer on a LAN event to bring it out of the low power state. Or you could purchase a Network Attached Storage appliance on your network.

http://www.sevenforums.com/general-discussion/150229-sharing-computer-turned-off-low-power.html
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Hi!

Bought an USB fan to my som today but it does not work untill he turns the computer on.
Mine works even when my computer is off. Is this a feature in the psu or software related?

The mobo is MSI-7623.

A:What makes my USB power turned on when computer is off?

Some Motherboards have Battery Charging support which can be enabled in the BIOS .. Also need to check in the Power Management for the USB devices to uncheck the Allow the computer to turn off...

http://www.sevenforums.com/hardware-devices/337391-what-makes-my-usb-power-turned-when-computer-off.html
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Hi all just bought a hp tower as it needed reformatting or a boot disc I turned it on and it got to screen saying thank you your pc is now set up but then the little egg timer came up and after 5 minutes the pc just switched off now no green light on back by psu and no power has the psu just blown or could it be another problem .. thanks in advance

UPDATE - plugged my psu into it and it turned on so im assuming ive been very unlucky and psu has just blown can anyone help me where to get one very cheap pc is a hp media centre m000 I looked on ebay and cant seem to see anything the one in there is the origanal I think which is a 230watt
 

A:HP tower just turned off, no power light

Maybe - http://www.911forpcs.com/m376n.html
 

http://www.techspot.com/community/topics/hp-tower-just-turned-off-no-power-light.186632/
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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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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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Hello. I have recently switched from OS from Win98SE to WinXP. The power is no longer automatically turned off after shutdown. I must press the power button by hand to turn it off.
Is this a bug?
 

A:Power doesn't automatically turned off after shutdown

1: Click - Start - Control Panel - Performance and Maintenance - Power Options
Tab

2: Then click APM - Enable Advanced Power Management Support
 

https://forums.techguy.org/threads/power-doesnt-automatically-turned-off-after-shutdown.436133/
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Its my first turned power Supply Flashback when LED is flashing on build and I think my motherboard isnt working but more specifically I want to know why the flashback led is flashing when I turn on the power supply Power is going into the motherboard the standby light comes on as well as the Flashback LED but when I attempt to turn the computer on with the power button Flashback LED is flashing when power Supply turned on on the case nothing happens I ensured both the ATX power connectors were fully in everything is connected RAM is in but the computer will not boot Also I might have have connected the power to the case in at the opposite ends ground to power and power to ground but it has been reversed and if that is the problem would I have to replace the case or the motherboard Here are the specs -ASUS M A motherboard -Fractal R ATX Tower Case -AMD FX- core AM GHz -Kingston GB in SSD -Corsair TX -Kingston gb HyperX DDR Ram nbsp

A:Flashback LED is flashing when power Supply turned on

No idea but slight suggestion Power supply???
Ronan
 

http://www.techspot.com/community/topics/flashback-led-is-flashing-when-power-supply-turned-on.194872/
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So my power in my house randomly shut off and I was about to leave so just said screw it and left it I come home the next day and try to boot my computer up but it just shows the windows logo. So I hard shut it off unplugged it turned the power supply off waited about 10 seconds and go to turn it on now it just shows the windows logo and says preparing automatic setup but won't do anything just stays on this screen. What's going on?

http://www.pchelpforum.com/windows-8-a/129692-power-turned-off-now-my-computer-wont-full-boot.html
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I've been dealing with the aggravation for over a year now of a network card that keeps turning itself off to save power. I have deselected this power saving feature in device manager; but, about two- to four times a month, someone comes to me to complain they cannot print.

Invariably, the computer the printer is attached to has no network access and restarting it fixes the problem. Also invariably, I will check the network card's properties and the 'turn off to save power' has been re-enabled on its own.

When shopping for network cards, this feature isn't listed in its specs so how can I find one that cannot be turned off?
 

A:Need network card that cannot be 'turned off to save power'.

I've never run into a computer or other network device that actually shut off while the computer was fully powered on. Something else is amiss, Alex. The adapter is not the problem.
 

https://forums.techguy.org/threads/need-network-card-that-cannot-be-turned-off-to-save-power.727825/
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I need some help here,

I've had this problem before and was told that my RAM was bad so it was replaced and the problem was temporarily fixed. For some reason I don't think RAM was to blame. Recently, it has begun to act up again.

After turning on the system, my monitor shows nothing and immediately enters standby mode. The monitor fails to read any input from the system. I get nothing displayed on the screen. Not even the windows logo. My monitor, video card have and RAM have all been tested on other systems and show no signs of being bad.

Can this type of symptom be associated with a bad PSU or motherboard?

Any help or feedback would be much appreciated. This is really frustrating.

Thanks
 

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this is probably the most problamatic computer iv'e ever had in my ten years of using them

i had to replace my old usb 2.0 adaptec aua-5100 card because whenever i used any usb device the computer would crash and restart and display the ''windows has recovered from a serious error'' message. so i whent out and purchased an iogear usb/firewire card. now whenever i turn the rear power switch off and turn it back on the computer boots the same thing if i unplug and plug in the computer back in.

i am about a hairs breath away from taking a hammer and making it a paperweight if anybody knows what the problem is,please reply to my post,help me save this computer from an untimely BUT SATISFYING END TO ITS LIFE!
 

https://forums.techguy.org/threads/computer-boots-when-rear-power-switch-is-turned-on.641170/
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K, I was playing SimCity 4 and my computer just turned off and then turned right back on. Is it the power supply or something else? I was watching TV and that had no problems, so it wasn't the power. It's a new computer with a ThermalTake power supply 420W, AMD64, Serial ATA HD.

Thanks
Jeff
 

A:Computer turned off in the middle of SimCity. Bad power supply?

Could be a heat related issue with your graphics card. If it gets too hot it might freeze or shut itself down and the PC. Make sure you are getting proper cooling, and things aren't too hot in your case.
 

http://www.techspot.com/community/topics/computer-turned-off-in-the-middle-of-simcity-bad-power-supply.8842/
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My laptop is 1 year old and has worked great until a month ago. I was unable to connect to the internet and thru troubleshooting got a "missing network adapter". I have since upgraded the driver. I also purchased Registry cleaner program that supposedly found over 400 registry errors.

I found by accident that I was able to connect normally if I turned the PC off by holding the power button. Then restarting, I got a message to start windows normally. When I did, and then it connected to the internet normally.

Now, each night if I leave the power connected to the laptop and shut down windows from the Start command it works fine.

I do not want to have to leave the power connected. Can anyone help? Toshiba tech support is unable to help other that suggesting I return the PC to the "out of the box' status which is totally unacceptable to me.

A:Unable to connect to internet after laptop power is turned off

The "Registry Cleaner" you purchased is mostly likely a sales scam which has ruined your Win7. These are Public Enemy #1 of Win7 which will not tolerate the mindless tweaking they do.

If you want to clean your PC use CCleaner Disk and Registry tab which is a genius program recommended by everyone here, while no one here recommends any "Registry Cleaner."

You may still be able to System Restore to a point before you likely ruined Win7 with the scamware. I would try that now. We can then help you troubleshoot your wireless problem without the interference of having run the worst possible software you can run on Win7.

After assuring your wireless driver is updated in Device Manager, rightclick the wireless connection in System Tray to run the troubleshooter. What does it report?

You cannot expect to mess with Win7 the way you apparently do and not need to periodically restore it to factory condition, or even better let us help you achieve the superior Clean Reinstall - Factory OEM Windows 7 sticking with the Best Practices tools and methods within to get and maintain a perfect install.

http://www.sevenforums.com/general-discussion/258596-unable-connect-internet-after-laptop-power-turned-off.html
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Hello All,

In the last two weeks I have been experiencing something very strange with my Windows 10 Pro. When my laptop resumes from sleep the Wireless is turned off in Windows. I don't believe it was an update because I have defer updates enabled. Unfortunately, I just noticed System Restore was turned off.

1) I have checked the power settings in Device Manager and the device is NOT checked to use power management)
2) I have updated to the latest wireless driver available.

Any ideas would be greatly appreciated.
Edit: I believe this issue has something specifically to do with Sleep because when I reboot or shutdown/power-on the Wireless is enabled and working fine. It only seems to be when Windows goes into sleep mode.

A:Wireless turned off after lid closed or sleep (Not Power Management)

It is common behavior for any devices to be powered down if you close the lid to place into sleep mode.

http://www.tenforums.com/network-sharing/42615-wireless-turned-off-after-lid-closed-sleep-not-power-management.html
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HELP! While shutting down the computer, there was an option to install windows updates before shutting down and i clicked it. i switched off my monitor to let it install and shut down itself but my dad unplgged the monitor for some reason and i turned off the power accidently forgetting that the updates were being installed!

Now when i switch on the computer, it takes me to the startup options page and no matter which option i select, it ends up in a blue screen saying that a driver is attempting to write on a read-only memory. The updates may be installed incompletely so is there a way to delete the updates? HELP.

A:Accidently turned off power while installing windows updates.

Hi MrAtiF and welcome to Vista Forums

The reason why you are having problems is because some updates overwrite and patch system files. When this happens, you need to take particular heed about the warning not to turn off your machine whilst the updates are configured/installed. Should power be removed, then some of these files will be incomplete and in an uncertain state.

Have a look at this Tutorial: Advanced Boot Options

Try Last Known Good Configuration (advanced). If that doesn't work, try these options in order:
System Restore - How to
Startup Repair
Repair Install For Vista

If none of these work, or you can't even access them, then you might need to do a clean installation:
Clean Install From Upgrade Vista
Clean Install with a Full Version of Vista

http://www.vistax64.com/general-discussion/269710-accidently-turned-off-power-while-installing-windows-updates.html
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Hello,

When I try to access *some* data on my SSDs, the computer to wait on the HDD to spin up should they happen to be turned off (power plan settings).

Is this an inherent problem with Windows 7?

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Okay so heres the story My dad called saying he turned the computer off using the power strip because it had frozen When he install boot, wont strip off, Power new [SOLVED] turned freezes... Windows rebooted it said there was a problem and it would try to error correct It failed after multiple tries freezing at different points in the process each time I tried [SOLVED] Power strip turned off, Windows wont boot, new install freezes... repair using the windows disk but it would also freeze I decided I would try installing windows on my backup hard drive ATA so that I could [SOLVED] Power strip turned off, Windows wont boot, new install freezes... access files on the main hard drive [SOLVED] Power strip turned off, Windows wont boot, new install freezes... SATA copy them over to back them up wipe the main drive clean and reinstall windows again on there Anyway I encountered the same problem the install process seems to vary in how far it gets each time but never completes If it stops installing because it froze and if i restart the computer it will generally show the windows startup screen then freeze often also blurring the screen slightly and lighting up random pixels in the black background I thought I would disable to quick start on the BIOS After doing so and after a couple restarts the computer would freeze at the BIOS screen I pulled the CMOS battery and reset it Put the battery back in and returned to the BIOS to turn the self test back on disable the quick start i mean I restart the computer this time it went past the BIOS screen but said that there was a checksum error on the CMOS but it allowed me to continue I have heard that this is commonly the fault of pulling the CMOS battery and not because the BIOS is corrupt I cant figure out what is causing this problem I feel like it is very low level software or a hardware problem Motherboard maybe im not sure any help on further diagnosing this would be wonderful EDIT I am now able to boot from safe mode on the original installation and normally boot Now im really puzzled My dad had said that they were able to boot the computer once and it eventually froze But now it seems to be running for the time being Maybe leaving it unplugged for so long helped Thanks

http://www.techsupportforum.com/forums/f217/solved-power-strip-turned-off-windows-wont-boot-new-install-freezes-545462.html
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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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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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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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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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http://en.community.dell.com/support-forums/desktop/f/3514/t/19987583
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A:Vista Dual Boot Turned Missing BootMGR Turned Complete Horror

Hello Aaon, and welcome to Vista Forums.

You might see if running a Startup Repair on the drive Vista is on to see if it can repair the boot MBR file for it.

Hope this helps,
Shawn

http://www.vistax64.com/general-discussion/193838-vista-dual-boot-turned-missing-bootmgr-turned-complete-horror.html
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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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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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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 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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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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I'm working on a emachine for a friend and here is what he has.
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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.
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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?
 

https://forums.techguy.org/threads/no-power-to-motherboard.835273/
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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

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 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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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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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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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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A:Acer KAV60: LCD is white when turned off, no image when turned on

It could be a defective inverter or LCD panel. I would try a new inverter first
 

http://www.techspot.com/community/topics/acer-kav60-lcd-is-white-when-turned-off-no-image-when-turned-on.184380/
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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 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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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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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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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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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 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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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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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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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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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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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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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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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/