(sorry for the dupe, I accidently put this under CPU/overclocking earlier) So I was out this morning, hunting those after-Thankgiving deals... I bought a DVD Burner and tried installing it, but somewhere down the line, things went horribly wrong. When I had finished installing it, I tried to power on with no sucess; no fans, no led's. nothing. My first instinct was that the power supply had gone. I removed power from all drives and tried again, to no avail. I took out all PCI (and AGP) cards still to no avail. Right now, I have the bare mobo, no RAM, (but with CPU), hooked up to the PSU, and still nothing. Yet, when I connect the green and black wires from the PSU connector, the PSU fan comes to life. Is that the only determinant of a good vs. bad power supply? Could it still be a problem with the power supply? I already tried removing the mobo battery for a while. Also, I hooked up only the PSU and mobo, and tried just shorting the case power jumper, still with no success. Is there anything else I can try? Is my motherboard fried? Could it be anything else? Unfortunately, I don't have any spare parts to troubleshoot with. I don't have the resources to go out and buy a power supply or mobo and then have it turn out it was the other one. (the selection is pretty bad around here)

You've done everything you can without either a multimeter or a supply of spare parts/another compatible PC to swap bits in/out. At this stage take the motherboard with CPU, One stick of ram and graphics card plus your powersupply to a tech and ask to have them tested. I used to have a signature but it disappeared and I just couldn't be bothered writing another so please feel free to ingore this.

Bad news... I managed to get a hold of another computer. My PSU could still power up the other box, but my box was still dead with the alternate PSU. It appears my mobo is dead, or at least one of the parts housed on it. Am I supposed to get any kind of response if I try to boot without RAM? (to discard the possibility of bad ram). without processor?