“Let’s imagine: It’s time to elect a world leader, and your vote counts. Which would you choose:
“Candidate A: Associates with ward healers and consults with astrologists; has had two mistresses; chain-smokes and drinks eight to ten martinis a day.
“Candidate B: Was kicked out of office twice; sleeps until noon; used opium in college; drinks a quart of brandy every evening.
“Candidate C: Is a decorated war hero, a vegetarian, doesn’t smoke, drinks an occasional beer, and has had no illicit love affairs.
“Which of these candidates is your choice? You don’t really need any more information, do you? Candidate A is Franklin Roosevelt. Candidate B is Winston Churchill. Candidate C is Adolf Hitler.”
Biased and selective comparisons can prove anything.
Cutting the power for 30 seconds drains capacitors. The most likely culprit is in the PSU, but I’ve also seen it be the motherboard or GPU.
Desktop PSUs have been pretty standardized for 25 years. The odds are pretty good that you still have an old one, or know someone that you could borrow from long enough to test.
Failing that, just get one from a place with a decent return policy. I like Micro Center, if you’re near one of those.