For the past few days, i have practically been unable to use my computer since the processor keeps overheating and the computer shuts off before i can do anything. When i load the computer the processor is at about 38 celsius, which is the recommended temperature according to intel, however from there it simply keeps rising till it hits 100 and shuts off. There does not seem to be any particular reason for this - the bios measures the general sytem temperature at 28 celsius and the heatsink appears to be fine. The processor itself is not all that old either, since i only got it in february.
Previously i had this problem to a lesser extent, whereby i could still use the computer well enough for most tasks but it would overheat when running games or a lot of applications at once. The problem has only become this bad after i added two case fans to try and remedy the problem. For this reason i think that it may be the power supply that is broken, since that would explain why extra case fans made it worse. Furthermore, the power supply is quite old, about 5 years, since i kept the old one when upgrading the rest of the pc in february as i said earlier. However im not really sure whether a bad power supply can cause this sort of problem which is why im asking here
My Pc specs:
Processor: Intel Core 2 Duo E4500 (usually rated at 2.2GHz, though ive tried underclocking it to 1.2Ghz to keep it cool, but it had no effect)
The heatsink is the one that came with the processor
Motherboard: Gigabyte GA-P35-DS3L
Power supply: Don't know the brand, all i know is that its 500W
if you need any other info just ask.