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Windows 7: computer power problem

20 Mar 2011   #1
ace1

 
 
computer power problem

Hi everyone.

I just put a build together and have a slight problem.

Whenever I turn on the computer, it powers on for about 4 seconds, turns off, then about 4 seconds later powers on noramlly and stays on.

Does anyone know why it turns off then on when I hit the on switch?

Specs:


CPU: i5 2500k

RAM: 4Gigs.

GPU: gtx 465

PSU: 650 Watt

Motherboard: ASUS P8P67 LE B3 Intel P67 LGA1155


My System SpecsSystem Spec
.
20 Mar 2011   #2
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Way in the back of my mind I think I recall that that is a known issue on some Asus Sandy Bridge motherboards.

I'd investigate Asus support and possibly look for confirmation and/or a new BIOS to solve the issue.
My System SpecsSystem Spec
20 Mar 2011   #3
ace1

 
 

Quote   Quote: Originally Posted by ignatzatsonic View Post
Way in the back of my mind I think I recall that that is a known issue on some Asus Sandy Bridge motherboards.

I'd investigate Asus support and possibly look for confirmation and/or a new BIOS to solve the issue.

Tried that, still doing the same thing.

If I just let this contiune will it mess up my other hardware such as the CPU and GPU, or is it fine enough to leave it alone?
My System SpecsSystem Spec
.

20 Mar 2011   #4
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Was there a BIOS update?

I certainly wouldn't tolerate it.

I'd Google the problem and check other support sites for others having the same issue and find out what they did to resolve it. This is not an Asus-centric forum. I'd look for an overclocker's forum as they are concentrated on Asus boards.
My System SpecsSystem Spec
20 Mar 2011   #5
bobkn

Windows 7 Pro X64 SP1
 
 

I saw that with a P8P67 Pro. I have the impression that it's not uncommon with Sandy Bridge boards. I noticed that it happened when I had no power applied to the system for a while. If I shut the PC down, and did a cold boot, the double-boot did not occur.

Warning: I had two P67 boards, one an MSI P67A-GD65, the second the P8P67 Pro. Both were bricked by firmware updates. (The MSI board was a dual BIOS one. Didn't help. I updated its firware from DOS, For the Asus board, I used EZFlash.)

All of my desktop systems have been homebuilts since 1997. I tend to do BIOS updates whenever new versions are available. (Silly, but not uncommon among enthusiasts.) I've never lost a motherboard before P67.

My point is: a BIOS update may offer improvements, but the mortality rate with P67 boards seems to be much higher than for older systems.
My System SpecsSystem Spec
21 Mar 2011   #6
Clinkz

Windows 7 Professional x64 Backtrack 4 R2
 
 

It sounds like the PSU is detecting overvoltage, this is causing the capacitors to discharge and the machine to power off. The reason it does this is the PSU detects the overvoltage and SCR's will short out across your 5 and 12 volt rails to protect your Mobo and other components from damage.

I would replace the PSU, but that is just me.
My System SpecsSystem Spec
21 Mar 2011   #7
ace1

 
 

Quote   Quote: Originally Posted by ignatzatsonic View Post
Was there a BIOS update?

I certainly wouldn't tolerate it.

I'd Google the problem and check other support sites for others having the same issue and find out what they did to resolve it. This is not an Asus-centric forum. I'd look for an overclocker's forum as they are concentrated on Asus boards.
I had the most recent version for the bios. I couldnt upgrade it.

Quote   Quote: Originally Posted by bobkn View Post
I saw that with a P8P67 Pro. I have the impression that it's not uncommon with Sandy Bridge boards. I noticed that it happened when I had no power applied to the system for a while. If I shut the PC down, and did a cold boot, the double-boot did not occur.

Warning: I had two P67 boards, one an MSI P67A-GD65, the second the P8P67 Pro. Both were bricked by firmware updates. (The MSI board was a dual BIOS one. Didn't help. I updated its firware from DOS, For the Asus board, I used EZFlash.)

All of my desktop systems have been homebuilts since 1997. I tend to do BIOS updates whenever new versions are available. (Silly, but not uncommon among enthusiasts.) I've never lot a motherboard before P67.

My point is: a BIOS update may offer improvements, but the mortality rate with P67 boards seems to be much higher than for older systems.
unfourtently I can not return the board, so hopefully it will last for at least a year or two.

Quote   Quote: Originally Posted by Clinkz View Post
It sounds like the PSU is detecting overvoltage, this is causing the capacitors to discharge and the machine to power off. The reason it does this is the PSU detects the overvoltage and SCR's will short out across your 5 and 12 volt rails to protect your Mobo and other components from damage.

I would replace the PSU, but that is just me.
So what is it ultimately, the moterboard or the PSU?
My System SpecsSystem Spec
21 Mar 2011   #8
GEWB

Linux (Mint is primary) / XP, Win7 Home / Win7 Pro, Ultimate / Win8.1 / Win10 archived VM
 
 

Quote   Quote: Originally Posted by ace1 View Post
Hi everyone.

I just put a build together and have a slight problem.

Whenever I turn on the computer, it powers on for about 4 seconds, turns off, then about 4 seconds later powers on noramlly and stays on.
Yup, perfectly normal for the Asus mobo. Some Gigabyte boards do that as well.

Don't worry about it, working correctly.

Regards,
GEWB
My System SpecsSystem Spec
21 Mar 2011   #9
DeaconFrost

Windows 7 Ultimate x64 SP1
 
 

What brand is the PSU?
My System SpecsSystem Spec
21 Mar 2011   #10
ace1

 
 

Quote   Quote: Originally Posted by GEWB View Post
Quote   Quote: Originally Posted by ace1 View Post
Hi everyone.

I just put a build together and have a slight problem.

Whenever I turn on the computer, it powers on for about 4 seconds, turns off, then about 4 seconds later powers on noramlly and stays on.
Yup, perfectly normal for the Asus mobo. Some Gigabyte boards do that as well.

Don't worry about it, working correctly.

Regards,
GEWB
Makes me feel a bit better, Thanks.

Quote   Quote: Originally Posted by DeaconFrost View Post
What brand is the PSU?

Ultra LSP650 650-Watt Power Supply - ATX, SATA-Ready, SLI-Ready, 135mm Fan, Lifetime Warranty w/ Registration at TigerDirect.com
My System SpecsSystem Spec
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