The P4 will throttle if it overheats, so the shutdowns/reboots you are experiencing are not the result of your CPU overheating. I don't think its the GPU (your video card) overheating either. My money is on your power supply having gone flaky after you replaced your video card with one that would (especially in conjunction with the notoriously power hungry P4) push even a good 350W PSU to its limit, and perhaps beyond it.
By the way Skybird, the electricity used by a computer's PSU is not determined by the rating of the PSU; it is determined by the load placed on the PSU by the computer's components and the PSU's efficiency, and the way to save on that is to use computer components that use less power, or are at least more efficient (and thus any newer AMD CPU is to be preferred to its Intel equivalent), in conjunction with a high efficiency PSU (good efficient PSUs advertise their efficiency).
My recommendation is that you buy a high efficiency replacement PSU in the 450W range.
__________________
What can you do against the lunatic who is more intelligent than yourself, who gives your arguments a fair hearing and then simply persists in his lunacy? -- George Orwell
|