[Ryan_88]

hi guys

am using Windows Vista Business x64 and have an Asus P5K motherboard

I built my computer last October, was working fine until february time, i would go Start>Shut Down and select shut down, the computer would turn off completely for about 5 seconds and then turn itself back on again, also on coming back on it would say: 1) CMOS date/time not set 2) overclocking failed! although the date and time were set correctly and i have never tried to overclock it.

After not being able to shut it down properly (i had to resort to holding the power button in POST mode and shut it down that way) i decided i would change the CMOS battery. This worked - problem sorted!

But however shut it down yesterday and woke up this morning to find it had been on all night! shut it down again just to make sure i didn't press the wrong button and low and behold its back to its usual ways!

Any help/input as to what this problem may be and why it re-occurs would be greatly appreciated

Thanks

Ryan

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This could be caused by a faulty or stuck power button. Or alternatively the computer is blue-screening on shutdown and thus forcing a restart.

An easy solution to stop it turning itself on is unplug it once it's turned off. If it turns itself back on then with no electricity, you have definitely got a problem

[Neil Jones]

This could be caused by a faulty or stuck power button. Or alternatively the computer is blue-screening on shutdown and thus forcing a restart.

An easy solution to stop it turning itself on is unplug it once it's turned off. If it turns itself back on then with no electricity, you have definitely got a problem

[Ryan_88]

power button is fine, blue screen of death does not appear on shutdown have also checked error logs and can't see any critical errors being logged.

[Ryan_88]

anyone else have any ideas?

[Murray S.]

Howdy:

Boot into BIOS and make sure "Wake on LAN" is not enabled.

Murray

[Ryan_88]

@Murray: have done that, and made sure that the mouse and keyboard cannot turn on the computer.

[Murray S.]

Check your "Power Options" in Control Panel. Are all those set correctly?

Also, go into Device Manager and make sure your NIC is not set to "Wake the Computer" in there.

Murray

[Ryan_88]

power options are set to high performance (everything on) and NIC is currently disabled as i am no longer at uni (so do not connect via ethernet)

[Murray S.]

How do you connect then?

Have you tried running a sfc /scannow to check for a file problem?

Murray

[Ryan_88]

when at home i use a wireless usb adapter to connect to my belkin router

scan is running now, will update thread when i get the results

[Ryan_88]

scan automatically closed on its own (after reaching 100%), take it that it didn't find anything wrong?

Edited by Ryan_88, 26 May 2008 - 09:02 AM.

[Murray S.]

when at home i use a wireless usb adapter to connect to my belkin router

Right. So is that adaptor set to wake up the system?

Murray

[Ryan_88]

how would i check that? have looked in device manager but can't see the option

[Murray S.]

shut it down again just to make sure i didn't press the wrong button and low and behold its back to its usual ways!
Ryan

What "button" are you referring to here?

Murray

[Ryan_88]

the shutdown button, when i go Start>Shutdown then select shutdown from the drop down menu