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Windows 7: Probably psu but

12 Mar 2012   #1
bambi

Windows 7 7000; Windows XP Pro SP3
 
 
Probably psu but

Hi again

Having to use my phone since my computer refuses to turn on now. The lights will come on and the psu and hard drives will spin for about 0.5 seconds and everything will shut down. Then it will repeat this process over and over. I can't even get to the bios or get anything displayed on screen. That's why I think maybe the psu has had it. It's only 5 months old of that...

I've tried changing sockets and changing power options (surge protect, normal cheap 4 gang, wall) all with the same effect.

Can someone confirm it's more or less the psu before I go and rage the company?

Thanks all.

Edit. Yesterday I did change one small thing in the BIOS. Turned wake on pme event to off to stop it turn on web ever I switched something else off after turning the pc off

http://www.sevenforums.com/showthread.php?t=218699


My System SpecsSystem Spec
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12 Mar 2012   #2
chris1neji

Windows 8 64 bit PRO
 
 

It sounds like a PSU issue.
This can range anywhere from bad or loose connections. Sometimes even CPU can cause that symtom.
How many cables are connected to your motherboard? (I need a number)
While you are there please make sure that your Motherboard 24/20 pin connecter is FULLY inserted.
Also a 4/8 pin that goes to the motherboard make sure that is fully and properly connected. You will not get a POST if those are not properly connected.

As for the CPU make sure it's fully locked in and that the fan power is connected to the motherboard.
My System SpecsSystem Spec
12 Mar 2012   #3
bambi

Windows 7 7000; Windows XP Pro SP3
 
 

Hi

Thing is for the last 5 months everything has been ok. But I've double checked every connection from the psu to the motherboard. CPU hasn't seen daylight since it was first built. But I've got the psu main connection, the psu to CPU connection. CPU fan, 2 ssds, 1 hdd, 1 optical drive and a handful of other fans
My System SpecsSystem Spec
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12 Mar 2012   #4
jc836

Windows 7 Enterprise 64bit Desktops; Windows 7 Professional 64Bit Laptops
 
 

Quick test:
Disconnect everything except the motherboard, cpu and its fan. See if it powers up to POST. If it does-start adding 1 device at a time and repeat. I would start with the DVD/CD Drive. Continue adding devices, including case fans, until the unit fails to POST. Could be PSU and that can be tested with an Antec tester or similar. Could also be one of the drives. Otherwise try another power supply with a higher output rating than what you have.

Good luick
My System SpecsSystem Spec
13 Mar 2012   #5
bambi

Windows 7 7000; Windows XP Pro SP3
 
 

Thanks,

Just got off the phone with the retailers and apparently the BIOS need flashing, which would make sense since the night before I turned PME Event Wake up off, but I'll flash them when I get home from work and let you know how this goes.

EDIT: Confirmed it was the BIOS. Just did a quick flash and it's back to life. Thanks all.
My System SpecsSystem Spec
13 Mar 2012   #6
chris1neji

Windows 8 64 bit PRO
 
 

good to hear... I was wrong on all of my assumptions lol. Thank You for marking as solved too
My System SpecsSystem Spec
Reply

 Probably psu but




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