Ok, So I finally got that new power supply I Hassled PCDirect for But when I got everything ready to go, something else came up...Go figure. Theres this plug (as shown in the picture) and well, while its plugged in my computer won't even power on. Nothing starts, runs or spins. However, When Its plugged in, Everything powers on but I get NO picture on my monitor. Im absolutey stumped. If you have any idea what the problem could be, or a way to fix this please help me out!


That looks like the separate power supply for the processor. You may have - groan - a faulty power supply. Have you had this system working at any point?Yep, The motherboard, Processor, graphics Card...all of them work FINE.
Nooo! Not again???! Is that possible to get two faulty power supplies in a ROW? I did try my back-up 300 W PS, and I got the same problem?? Im absolutely stumped. i thought maybe it was my mother board, so I'd TAKE it to Like staples nad have them test it.Wait in both instances your PS was plugged IN? I'm confused :-?Gah, Sorry! When the power cable is pugged into my motherboard, nothing happens. When Its out, everything starts up and is running ok, but there is no monitor action at all. It just is black, But the HD is on and runing fine.In that case, the computer is fine. If it's an external GFX card (AGP, PCI, PCI-E) try re-seating it and making sure any clips are done.
As for the extra plug, keep it unplugged. I heard it's only for P4's. I'm running an AMD Sempron 3000+. No extra plug needed here...ahhh, THATS right. I remeber thre being a note about the "P4 Plug." So what do I do to fix this? It still dosn't work, everything looks fine...It almost seems like my motherboard is set down to FAR in my case though :/ Like its not going in all the way, Im not sure why its doing that, I know thats the problem now..