cpu temperature

[vietboi]

how do you know if the cpu is over heating? at what temperature?

[JohnE.]

Depends on the make/model of the CPU.

[vietboi]

it is athlon xp 2600 with 333mhz front side bus.

You're probably safe up to about 55C, but I wouldn't want it running that hot all the time.

[Chaffers]

You know it is over heating when your system hangs or reboots for no reason... (could be other reasons apart from this for why restarts etc, but this is one of them)
I have a athlon xp 2400 and before I added my case fan it got up to about 60C, and it was still stable.
Now that I have a case fan, it runs around 50C at most...
Hope this helps!