Fans are running just fine. Given that my hard drive is probably pushing 10 years and failed a S.M.A.R.T. test for Reallocated thingies(technical term, I swear!), I'm pretty darn sure that's the problem and not the PSU, but I had read that bad PSUs can kill hard drives(among other things). I just want to be sure that I don't inadvertently fry a brand-new hard drive because I misidentified the true source of the issue.