My mate has a problem with his PC. I wasn't able to help him fix it (he lives no-where near me) so I thought some of you guys may be able to help
When he plays games on his PC, his computer will crash, with no error message, and no signal going to his monitor (his monitor says "No signal") but the power is still on, and the num-lock is still lit on his PC. Also his PC does not respond, no disk activity and he has to wait a while before he can actually turn it back on again. His CPU temperature is about 45C under-load, and his case temperature is about 29C. At first I thought it was his PSU, but he has a dual fan PSU and he said it doesn't give off much heat. The only other thing I thought it could be is his north bridge and south bridge over heating, or is there anything else it could be?