I really did look for somewhere else to post this. I always browse this forum, please move if this needs to be some where else. I've always thought that my mother board read bad (abit kt7a) for temp and voltage, but now that I have a DigiDoc, it reads almost exactly the same. My PSU's 12v rail is running between 12.35v~12.53v. I get black splotches in games some times, not like artifacts though. How much variance can you have? Could this be the cause of the splotches (they're very intermittent)? I'm probably just gonna replace it, but as I've stated before, I don't know d1ck about electricity.