The problem is solved then.
Thanks a ton for the link, danrak. It solves my problem.
Also, the reason i didn't post the problem is because this answer isolated the answer to my problem. In case you're wondering, I have all parts to my custom-made PC, and when I try to boot up, the front panel LED comes on [red] for like half of a second, as does the power supply fan [all of my 5 80 mm fans don't come on]. After that it just cuts power and dies. I have to unplug the power supply after shutting it off with the switch, and then replug it in and turn the switch back on + press the power button on the front panel to een get it to do any thing again [it does the same thing]. I've tested my vid card, processor, power supply, and havent had access to a comp compatible w/ my RAM [pc2700], but even if the ram were defective, it wouldn't cut power [i would know; I've tested that exact situation b4]. I know it's my motherboard now because that's the only part left. Either that, or I'm hooking it up wrong and it's grounding itself out [similar to when you ground yourself in order to discharge any static built up inside your body]. I'm 99.5% sure it's not the latter, because I've rebuilt it trying many different things and had no different results. And even if it WERE the latter, the power LED only turns red when there is defective hardware installed.
Thx a bunch, and wish me luck getting the motherboard replaced [I ordered it through outpost.com, so it should be no problem]