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Overheating?
Sure if the fan is blocked, or it's in the sun, during summer etc.
But IMHO running a fancy program (or OS as suggested) will not "force" a cpu to overheat.
The CPU runs at a speed determined by the crystal - no OS (or prog) can add extra "cycles".....so the notion that some programs work it harder (which causes so-called heating) is wrong.......prove me wrong!
What ought to happen (my logic), is that if your program is very demanding then it will slow down, compared with a PC using a faster chip, or one with more Umph (such as Dual-core where some of the bottleneck is removed by "better processing")
Back to the Issue in hand:
Two posts indicate it's the psu......have you increased the load (added more stuff etc?).....or is the PSU fan not working.....changes internall to ribbon-cable routes can obstruct the air.......the PSU will have temperature-protection (I hope!) anyone know if this is reported to the PC ....it would seem logical.
Alternatively it may be the processor is gettiing hot - poor circultaion, fan failue....if it's like my Intel SE440BX-2 motherboard you have one of those large upright CPU's - worth checking it's firmly seated in the socket. Have you suffered Parallel Port failure? (see my LPT1-post elsewhere)...
But in reality there is insufficient iinfo - ambient temp etc - the clue may be in running overnight - cooler then.
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