So I recently OC'd my system to what seemed to be a stable 4.5ghz, CPU temps never hit any higher than 75deg C, ran Prime95 for 30mins no issues. Over the past few days, I've had my games randomly crash on me (usually between loading levels) but I can still get to Windows fine, a few times my system did shut off, no BSOD's though.
I then decided to run a series of stress tests; Prime95, Memburn, ATTO, Furmark, etc, no issues and passed with flying colors on these tests. I uninstalled EVGA precision X which I was using for a very very mild GPU overclock, but that didn't change anything. I ended up setting everything back to stock speeds, ran BlackOps2 for an hour, no crashing (so far).
1. PSU not sufficient to support OC'ing my CPU from 3.4ghz to 4.5ghz, or I need to bump up the voltage a tad in the BIOS.
-the only issue is wouldn't my system always turn completely off or BSOD?
2. Video card might be coincidentally going bad
-wouldn't this trigger constant issues even at stock speeds?
I've looked for that option in my BIOS and I think it might be under a different name because I can't find where to set the LLC in the BIOS. I've gone through that manual several times and some of the options appear to possibly be what I'm looking for, but I'm not entirely sure.