I recently upgraded an old PC and it was working great. This morning I was using it and then it went into sleep mode. I've never had a problem, but then it wouldn't come out of sleep mode when prompted (by pressing a key or moving the mouse). I then shut off the power, then turned the computer back on. Instead of POST, I get nothing except fans running. No beeping or display. It was odd.
So, I googled the problem and tried a number of things. I reseated the internal connections and reseated the RAM. Still the same result: just fans spinning and no beeping. I then tested each stick of RAM in each slot and still nothing. I even tested my old RAM, which was working at the time of the upgrade. I then tried booting with only the CPU/PSU/Mobo connected. No beeping or anything (even with all the RAM removed). I then connected my old PSU with the same configuration (just CPU/PSU/Mobo and no RAM) and that didn't help either. I then reconnected all the hardware to my old PSU and still, the computer would only "turn on" with fans, but no beeping or POST or display. I should mention that LED lights on the motherboard would still light up when turning the PSU back on.
So, I'm inclined to believe that my motherboard has finally met its maker. Of course, it could be that both of my PSU's have a bad rail?? What are the chances of that? Here are my system specs:
Intel Core 2 Duo E8500
500GB Crucial SSD
ASUS GeForce GTX 750 Ti
8 GB Crucial Ballistix DDR 800 RAM (4x2GB configuration)
EVGA 650W P2 Supernova
If the motherboard is dead, so be it, but I am just trying to make sure I didn't miss anything. Appreciate any advice or ideas and many thanks for your time in responding!