New power supply arrived Wednesday. I put it in after work and have been running 100% stable ever since. The replacement is 1600W instead of the 1200 that was in there so I'm not completely sure whether the problem was due to the crazy 3.3v rail, running into the PSU's capacity, or both, but in either case the problem appears to have been fixed.
post #11 of 12
6/10/16 at 5:59pm