Why is my desktop shutting down (power off) on its own after an hour of operation?

[debracoker]

This is what I've done:
1) reformatted hard disk and reinstalled OS
2) Scanned for virus
3) Cleaned the processor heat sink/fan. Reapplied new heat dissipation paste under the heat sink.

BTW, its a P4 processor, running on XP. Hope to get more leads as I'm running out of ideas. Cheers. Thx.

[falko]

Maybe it is a temperature problem, causing the system to shut down automatically to cool down.

[Linusr@flanders]

Hi,

Some thoughts, though ... xp/windows is not my forté/fav ...

You re-installed everything, so...exclude a virus (well, there is a debate werther windows itself is a virus but that aside). By the way, a modern virus will keep your system going, as shutting down is "leaving a trace" of its presence and it would disrupt it's own job.

The question is : who/what shuts the pc down? If it's the os, then you'll not get any restore messages at reboot, if it is the hardware (heat/electrical/...) the os would not have the time to cleanly unmount/shutdown and that would manifest itself in some parts of the system. In w98 (yes, it's that long ago I used windows) there was the disk check (blue screen) ...

A clue?

Luck!

Thor

[erosbk]

Are you using the PC when it poweroff? the OS makes a shutdown or it looks like if you unplug the power? try to be a bit more specifyc pls

[servermonitoring]

Originally Posted by debracoker

This is what I've done:
1) reformatted hard disk and reinstalled OS
2) Scanned for virus
3) Cleaned the processor heat sink/fan. Reapplied new heat dissipation paste under the heat sink.

BTW, its a P4 processor, running on XP. Hope to get more leads as I'm running out of ideas. Cheers. Thx.

Its not software problem may be its due to hardware problem check the processor sit correctly or else it may due to motherboard problem

[sunny12345]

Originally Posted by debracoker

This is what I've done:
1) reformatted hard disk and reinstalled OS
2) Scanned for virus
3) Cleaned the processor heat sink/fan. Reapplied new heat dissipation paste under the heat sink.

BTW, its a P4 processor, running on XP. Hope to get more leads as I'm running out of ideas. Cheers. Thx.

i think that you did n't paste well sometimes it happened. so i hope that if u re paste may be that will be help you out.