OK latest update: I got everything back on track, I haven't got any freezing or driver errors for almost about a week now, longest ever. What did I do? I installed the latest (october) drivers for GPU. So, it was software all along. No voltages, temps, nothing. Just software. So frustrating. What I can't make sense is, why did 338 drivers work on my old computer, but not on the new one? It's the same GPU... just different computer (hardware). Oh well! Thanks everyone for help.