I learned "what not to do" from my work experience, having to wrangle machines with cheap PSUs, and at home having a "supplied with the case" PSU say "pop" to m

I learned "what not to do" from my work experience, having to wrangle machines with cheap PSUs, and at home having a "supplied with the case" PSU say "pop" to me years ago. Get something good, and you won't have to get it twice. But they don't last forever, and my old file server's 10-year-old PSU finally started causing random errors about a couple of months ago - recognized when a sustained hard disk operation dimmed the power LED. I had spares, but it's time for me to think about building something new. Whether it's more computing power for the same electrical input, or the same for less, I can do better.