I open ther PSU, nothing burn, zero smell (i don't have the cov19 ok, hehe), everthing looks fine, i test the primary protections (varistors, thermistors, fuse, etc.) and evething looks fine, anyone have schematics? or any idea what happens with my PSU?
It's a APW8.
It's almost impossible to fix PSUs from Bitmain unless it's an obvious easy fix, I am not an expert in dealing with all the PSU components but I took a few dead PSU to a friend who knows all about this stuff, and the conclusion I came up with (based on his thoughts) the way these PSUs were built is merely for one-time use, fixing them will consume more time and effort than what they actually worth, unless of course, you have all the skills, spare parts and nothing else to do that makes you money, in my friend's case he apparently could make a lot of money fixing other things that aren't glued and have no pinouts, so he nicely asked me not to waste his time.
With that being said, it's worth saying that most PSUs that stopped working for me simply needed a fan replacement, did you confirm that two fans spin just fine? I know
thierry4wd plays quite a bit with his PSUs, I hope he would chime in for more thoughts.