So a week after my video card problems were solved by a new driver, they came back, only this time it wasn't just older games like Bioshock and DDO, it was every game that used 3D graphics. I tried Deus Ex, Bioshock, Civ V, DDO, and Crysis. All would crash within 5 minutes of starting. So fuck this, I'm going to get a new motherboard, but first I'm going to take this thing apart, look at the motherboard, and make sure everything is seated correctly and there are no pins out or bent, or something. I took the whole thing apart, reseated the CPU, put the cooling thing back on, and reconnected everything. Some of the pins were bent in the connector for the USB 3.0 slots in the front panel. I pushed them back in place and reconnected that thing (which hadn't been connected since my original build). I replaced the SATA 6GB/s cable on my SSD. Now there are 6 GB/s cables and 3 GB/s cables included with my motherboard. This article did some tests and found there was no difference. Also when I plugged in everything, I didn't bother using the new power cable that came with my new PSU, I just used the one from my old computer. It's got considerably less thickness (shielding?) than the new cable. I can't see where it would make a difference, but I switched to the new cable. I'm into voodoo here. And this is the big one, though I could be wrong. When I went to pull the main connector from the PSU to the motherboard, I didn't bother to find the little clip that holds it in place and the connector just came right out. This leads me to believe that I may never have pushed that power connector all the way in and that the power to the motherboard may have been intermittent or faulty from the get-go. Or, I might have loosened it some previous time that I was dicking around in the innards and never pushed it back in correctly. I made sure it was all the way in and wouldn't come out just by pulling on it. Last night I played a half hour of DE: HR, a half hour of DDO, and 5 hours of Civ V. The system was rock solid the whole time. But I live in a world of distrust now. It took three weeks the first time for the system to go crazy. If it goes down again I'm buying a new motherboard.