Hi today when i operating my pc, it automatically turned off. only the cpu power light and the cd-Rw drive light is glowing when i restarted it again. i checked my RAM whether it loosen or not, but it seems to be ok. i removed the processor fan to check the processor temp. the processor is not getting heated at all. only the main power light of cpu and the cd drive light is glowing. before this my pc used to hang a lot. but suddenly today it never get started again. so kindly give me some solutions for this.
Check them bigger transitors heatsinked in solder to mother board should find a 12v a 5v with your test meter. sounds like you lost 12v to the cpu. 12 and 5v , -5v -12 start at the power supply....i would take the plugs loose and see if voltage comes back up if not change your power suppy, 400 watt ps would be nice. there is sometimes one separate plug with 2 wires that runs down by the Processor this powers only the CPU ,check that if you see it.all universal ps now have this extra plug.
I'm sorry to tell you but your cpu has probably fried. Your pc hanging a lot probably meant something was overheating and the fact that you say your cpu is not hot when you have the cooling fan off of it means it is probably the cpu. When you first turn your system on without a cpu cooling fan, the cpu should be slightly warm, although I do not recommended running a cpu at all without a cooling fan or even touching it when it has power.
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