PC Reboots itself after being on for a period of time

[be4ker]

My pc randomly reboots itself after a period of time. It usually happens when Im running about 3-4 IE browsers, AIM, and Outlook Express for a while. i thought it was my overclocked CPU that was the problem, so i disabled over heat turn-off in the BIOS. Could there be errors in my registry?

Athlon 2500+ XP overclocked to 3400+ (42 C at rest)
Abit NF7-S2 Motherboard

 

[Eric Legge]

That processor is seriously overclocked.

Overclocking reduces the lifespan of the hard ware and also overclocks the RAM and PCI bus, so have you tried not overclocking the system?

There is no point in turning off the overheating monitor in the BIOS if the processor isn't overheating, which it doesn't appear to be doing if its temperature is only 42 degrees.

 

[be4ker]

im sorry i overclocked it to a 3200+ (1.8 to 2.2 ghz). So what do you suggest I do? could it be my powersupply? To turn off the overclock what settings do i have to change. Thanks