So my 4 yearold desktop PC is having problems. I'm not sure exactly what the problem is. But it's either my power supply (Enermax 535 watt) or my video card (Sapphire ATI X1900 XT). Earlier this summer we had some damp days and when I went to turn on my PC it wouldn't. I pushed the button, the lights blinked and then it was dead. This had happened once before, but the lack of burned silicon smell and fire works made me think it would be fine. It was. Now when it happened again I was determined to see if anything was dead. I disconnected the second HDD. And it turned on. The next week it happened again. And this time I had to swap video cards and disconnect both HDD's to get it to boot. Now the video card has been acting up. It keeps over heating and crashing when I use any game that require any kind of 3d Acceleration.

My main question is this: Is it only a power supply problem? Or are both dieing and need to be replaced?

Note: I don't have the money for a whole new PC at this time.