Rebuild problem

Hodge · 18 Oct 2010 at 16:02

Just rebuilt the wife's computer due to a problem with the PSU. Inside the case now is a Corsair HX850W psu (Overkill i know). IP35 Pro mobo,Q6600, GF8800gtx, 1 sata hdd and a sata dvd drive all enclosed in a Antec 900 case.

The problem is with Windows XP sp3. On shutting down it reboots back to windows i have removed all case headers and used the onboard buttons with the same result. Is there anything in the BIOS i should be looking at?. Thanks

Surveyor · 18 Oct 2010 at 18:30

Have a gander at this article:

http://support.microsoft.com/kb/320299

Hodge · 18 Oct 2010 at 18:49

Thanks Surveyor for the reply. But windows did not stop unexpectedly it preforms a full shutdown as requested but 5 sec's later it restarts. Tomorrow i will rebuild it outside the case to ensure it's not shorting on anything.

Surveyor · 18 Oct 2010 at 18:57

The first line of the article reads "If you shut down your Windows XP-based computer, your computer may restart instead of shutting down" which sounds like what yours is doing.

What it says if that if an error is encountered during shut down Windows is set to automatically restart the PC.

It must be worth trying what it says in the article before stripping down the PC.

Hodge · 18 Oct 2010 at 19:45

Under System Failure, view the Automatically restart check box. If the Automatically restart check box is selected, Windows automatically restarts if the computer stops unexpectedly.

My check box is not selected

Surveyor · 18 Oct 2010 at 22:27

Other things to try:

Make sure "wake up on LAN" is disabled in the BIOS.

Open the Device Manager and locate your system’s network card. Right click on the card and select the Properties command from the resulting shortcut menu. When you do, you will see the network card's properties sheet. Now select the Power Management tab and verify that the Allow This Device To Bring The Computer Out Of Standby option is deselected.

Hodge · 19 Oct 2010 at 15:34

Surveyor said:
Other things to try:

Make sure "wake up on LAN" is disabled in the BIOS.

Open the Device Manager and locate your system’s network card. Right click on the card and select the Properties command from the resulting shortcut menu. When you do, you will see the network card's properties sheet. Now select the Power Management tab and verify that the Allow This Device To Bring The Computer Out Of Standby option is deselected.

1 wake up on LAN is disabled in bios

2 This Device To Bring The Computer Out Of Standby option is deselected. No change. So at the moment only option to turn off the pc is at the PSU switch

Again thanks for your help

Surveyor · 19 Oct 2010 at 22:34

The only thing I can suggest now is to strip down the PC, rebuild it outside of the case (taking anti-static precautions) and try it then.

If the problem goes away then it must be some sort of shorting problem when it's inside the case.

Hodge · 21 Oct 2010 at 00:02

Rebuilt outside the case with the new Corsair HX850W psu same problem reboots 5 secs after shutdown.

Tested with a £30 600w psu and yes it shuts off and stays off!!

I just hate trying to fix a pc when the new part is duff.