Hey guys. So I have a problem with my PC. actually I've been having minor problems with it for a while that have finally condensed into one big one, it seems like.
So, a while back I started getting BSODs. They were pretty sporadic, so I didn't think much of them. After one particularly bad one, the computer started to hang on the mobo splash screen, pre-boot and bios, so I couldn't even see what was happening. I fixed that one by pulling open the case and fixing a loose connection, so it seemed ok again.
More lately, when it's being going into power saving mode and shutting off the display, no matter what combination of key presses and mouse movements will get it to come back up again and I have to shut it off and restart. Today when I put it to sleep while I went to work I could hear the hard drives spin down, but the lights and fans stayed on, then the keyboard light pulsed once and shut off. I thought it was kind of weird but I left.
Tonight when I tried to turn it back on, the lights and fans come on, but after five seconds everything shuts off. Then the lights and fans come back on but no matter how long I wait, the boot process doesn't start. If I shut it off and try to restart after this, the lights and fans come on and stay on but nothing happens. If I power cycle it, it'll start up and turn off and come back on like before, but it never starts booting.
I'm not even sure what my issue is. From some cursory reading on google, it sounds like the mobo, CPU, or psu but I'm not even sure how to pin it down. Any insights?
For reference, I built this PC in 2009. It's got an asus p5ql pro motherboard, core2 duo e8400, 2x 2GB RAM, and a corsair 650w power supply.