I just went and bought a fresh PSU to see if it helps.
OLD ONE:
Enlight Corp, HPC-340-101, 315W MAX
NEW ONE:
Antec, SmartPower 2.0 Model SP-500, 500W
Yes, the freezing happens randomly. I have had it happen in Photoshop, in Premiere, while idle. It doesn't seem to matter.
I will let...