looking for a new PSU, what's recommended?

[slyexe]

Hmm, I still feel your 650 should be adequate because the TDP on a 3080TI is only 350W. Also will depend on what else is equipped in the system I suppose. But I've ran a 3090 on a 550W with powerlimit at 80% using 350W no issues. To me it sounds like your PSU is faulty or has really bad 12V rails.

Eitherway, I have several components running on EVGA Series 80Plus Gold/Platinum/Titanium and have never had an issue. They get some good deals on refurbish units directly on their website and still provide decent warranty. Cannot complain with them.