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this post was submitted on 08 Dec 2023
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This has been going on for at least a couple of decades now.
PSU buying advice you'd hear from random PC gamers before the age of having a plethora of engaging-to-watch tech YouTubers really would be "if a power supply is heavy, it's probably good" outside of a slim minority of people who actually regularly read PSU reviews from PC hardware mags and articles.
I've seen a PSU with a straight up thin layer of cement in it, as well as bits of metal stuck to the inside. It's nothing new.
I think we should be fair and give credit where it's due, that advice may have been going around but more likely in reverse form – "if a PSU is very light something's wrong". Any gamer with half a brain has long since learned to buy PSU's based on reviews coming from reputable testing labs. There have been such labs available for a long time now, jonnyguru.com (Jean-Claude Gerow) started doing detailed PSU analysis around 2006 I believe.
To me this is the most important reason for building your own PC. If you don't care or don't want to research each part then sure, get a prebuilt. Otherwise, it's really nice to know what's in it and do your research on each piece so you know it's quality and will be supported.
Warranty is the biggest reason for a prebuilt. Anything goes wrong with it and you're not spending money on things to test and experiment with. You send it in, it comes back working.
You get warranty for parts too. Unless you meant warranty as a substitute for building know-how.
It's a convenience factor I think. Send the whole thing away and it comes back working. Opposed to having to find the faulting hardware and determining the type of fault and dealing with the vendor for that specific part in hopes that it's actually the issue.
I don't personally view that as a convenience but understand the sentiment. If my PSU died, or something similar, and I had to send my entire machine just to get it fixed, that translates into working downtime for me.
It's nice to just have some spare parts or your old parts to swap into temporarily while you rma the dead part. Of course, this assumes that you can do a bit of hardware troubleshooting (which I admit isn't something most laypeople can do).
I've given similar advice but it's more "light is likely no good, but don't just trust that it's heavy" as well.
The cement is probably missed with lead to keep the radiation in ;-)