Problem on Startup.

First off system specs, AMD 6000+, 4GB DDR2 800, EVGA 7950GT KO, 320GB perp. rec. HD, 500W PSU, XFI audigy. XP.

The other day I was closing a program(Xfire), and all of a sudden the screen went black. All fans were still running, I could still hear the HD spinning, however the monitor light was blinking(no signal lost message though). Also all of my peripherals went dead. Now when I turn it on, I can hear everything going, HD, fans are spinning, case lights are on. However no peripherals are working, and the monitor still blinks. Ive RMA'd the PSU, and the GPU already, didnt work. Also tried resetting the CMOS battery and jumpers.

I think the CPU is the cause, anybody else have any idea's? or ever seen this? I removed and reseatted the CPU with new AS5, and I have a HUGE cooler on my CPU. The thermal paste did look a little darkened, but nothing that ive never seen before.

yeah I also thought about a bad PCI-e slot on the mobo. My PSU is a antec earthwatts 500W, I RMA'd it for the same thing. I know its not the best by far, but I was on a tight budget for this build. My CPU temps were a steady 28-30c idle, and never over 45c at full load. Should add that I built this rig in August, and ive put new AS5 on once since original installation about two months ago. I also forgot to mention my mobo, its an asus M2n SLI deluxe 570. Not the wireless edition. zache86

Those were good temps for a 6000+. So, my guess is the PSU snuffed the MOBO, or the MOBO was simply faulty/weak to start with. Either way, the board would be the next thig to check. If you have a spare AM2 proc layin' around, you could use it to rule out the CPU for sure. My guess is the problem will persist with a replacement CPU though.

^^ I mentioned that I did all that in the topic starter, thanks though.