First and foremost, thank you in advance for responding. I've spent enough hours troubleshooting this computer that I'm getting double vision and have nearly given up on it.
Here are my components:
Asus A8N32-SLI Deluxe mobo
EVGA 9600 GSO graphics
Antec case and 430W PSU
Ok, here is my problem.
Some time ago my video card stopped working (or at least seemed to stop working). The monitor would read "No video input detected". Additionally when I booted my computer, my onboard speaker would give me a long beep followed by three short beeps (an indication that the is no video card detected). Since this had happened to me four years ago when I first built my computer I gave it no second thought and RMA'd by graphics card. When I follow up with EVGA they told me that the graphics card worked just fine on their end but that they would send me an alternate replacement. That was when I first suspected that my problem was something other than the video card.
Having received the video card I installed it in my first PCI-e slot and sure enough, the computer would try to boot up (fans and PSU worked) but the same beeping signals from the mobo and no display on the monitor indicated that there was still a problem. I then inserted the video card in the second PCI-e slot and everything worked fine for a couple of days. Then every once in a while the monitor would intermittently display a "no video input detected" and upon reboot I would have the same problem all over again.
At this point I did something that I shouldn't have. While the computer was on I opened the case and touched the graphics card prior to grounding myself. Immediately the entire computer shut down. I figured that I must have fried something. I tried booting up the computer to no avail. Nothing would work, not even the PSU or fans.
After some research on the web I figured that my PSU may have gone bad. I tested it with a multimeter and everything checked out but decided to replace it with a new 500W PSU. Tried it with the same result.
Fast forward a few weeks later. I got a hand on another A8N32-SLI mobo with a different processor (these items are not new). I rebuilt the computer with these parts. Nothing. Nada. Same result.
I even borrowed a friends graphics card and again same result. The PSU wouldn't even power anything....neither the case fan or its own fan!
So here I am wondering what are the chances of this thing not booting up after having changed the video card, PSU, mobo, and processor?!
My last ditch attempt was to run a bench test in the event that the casing was causing a short in the system. I hooked up the bare minimum (just harddrive). Same result.
The only thing that managed to make the PC boot up (meaning I could hear the harddrive load up XP) was when I removed the video card. Of course I couldn't connect the monitor but I could see all the fans powering up and the harddrive clearly going through the motions of loading the operating system.
Anyone have any idea what it could be? I feel like I've exhausted all my possibilities. As a side note, my friends graphics card worked fine when he loaded it back into his PC.
What are the chances that I've got two motherboards with 4 PCI-e slots all gone bad?
Any ideas would be greatly appreciated.