After a rather frustrating time at my friend's house, I brought my computer back home and tried fixing things myself. Strangely enough, I was able to get the computer to boot into the BIOS at least. I think this was right after I tried reseating my CPU. However, I got a HDD error and the second time I rebooted, I was back to where I started - no post, no nothing.
I have tried reseating every connection on the motherboard, resetting the CMOS by using the jumpers AND by removing the battery. I followed the steps listed in http://www.geekstogo...oot-t67949.html and still nothing.
It doesn't seem like the power supply. It is running and seems to be getting power to the rest of the components.
I have visually inspected every piece, and everything looks great: no dings/scratches or ANY kind of visible damage.
The real problem is that my set-up:
Intel Prescott 3.0 GHz CPU
1GB Patriot DDR2 400 MHz memory
ATI All-in-Wonder X600 PCI Express video card
won't fit in any of my old computers to test components one by one. In fact, I don't know anyone with a box that would be able to help as a tester.
To me, this feels like a CPU or Motherboard problem. But how do I know which component is to blame?