I'm using the beta and nothing has changed. It is completely random, sometimes 2 minutes sometimes 2 hours. It does seem to be closely related to "loading" anything a lot of times such as entering/leaving a town or battle or various other screens. Sometimes its just as I'm crossing the campaign map, usually I have an auto save after reboot that is corrupt but not always. Again, temps are normal, usually in the 45-55 range for cpu and gpu even when it works for longer periods. Stress testing has brought everything up to 100% and into the 70s temp wise with no errors or crashing, this again is NOT a problem with hardware. I have a Corsair RM1000 and can try to melt this computer with just about anything without failure, it's not a PSU problem either.