Christ, stop shitting up my thread. Goddamn.
Anyway, I plugged my video card into my buddy's computer and it booted up fine, got a POST screen, logged into windows, and all that. So it seems that the video card is fine. so now if the motherboard is the problem, is there any way to tell if it's only the motherboard, or could my processor or memory be at fault too?
Do you have 1 ram stick or 2?. If you have two, Just take 1 out and see does it boot, and swap it and give that a try also.
Tho, I still think it is the PSU. Do you have a Power Supply Tester?
Check out your local computer store. I am sure they have one.
http://www.newegg.com/Product/Product.aspx?Item=N82E16899706001&cm_re=PSU_tester-_-99-706-001-_-Product
Another thing you could do is. Unplug/remove your case fan, DVD, HDD, USB, Sound Card(if you use one.), and boot up only having, video card, cpu, ram, mainboard. And see does anything display. If it doesn't boot up. Try lower your video card to the Black slot. And see does that work.
If you think your mainboard is fried. Use your nose, do you smell any burnt smell. And use a flash light to see any burnt spot on the mainboard and any blown capacitor. Also check the Ferrite Core, and Low RDS. If there is some chipping it might be the problem.

If the mainboard looks good. It could just be the PSU gone bad. 2 ways to test a psu, either put it on another pc and try it, or go out and buy a PSU tester(Power Supply Tester.

You could use 1 working computer PSU and put it in to the company and see does it work. You could also get a new 550w PSU, if you dont want to buy a PSU tester. Antec 550w the rails have nice amps(123 amps)
http://www.newegg.com/Product/Product.aspx?Item=N82E168173710161 x Main connector (20+4Pin)1 x 12V(P4)1 x 12V(8Pin)6 x peripheral6 x SATA1 x Floppy2 x PCI-E
Since, you are not a overclocking. I highly doubt your mainboard is fried. As for me I have a higher chance i7-875k 2.93@ 4.0ghz 24/7. Also, Dual core, and Quad core mainboard started using 100% High-quality Japan-made Conductive Polymer Capacitors. (Yes there is a chance but a very low one for a non-overclocker.)