Question When I plug in PCU computer shorts ?

Aug 30, 2021
Hello everyone,

I had an Alienware R6 and I was trying to upgrade to a new evo 970 plus ssd. I had to update the bios and my computer got stuck when trying to boot back up. I had to hard turn off with the power switch and after that my computer would no longer work. Just kept shorting

I got a new PSU which is a 24 converted into a 20 pin. Works like a champ. And tested the old one which seems to work fine (also a 20-24 pin)

then I got a new motherboard. After installing everything I had the same problem. When I take out the PCU plug it fires up like a champ. All the fans work great.
I am guessing that maybe I blew the PCU card? I don’t see any damage to it. Just not sure what to do next.

Thank you so much for any help!

please let me know if you need anymore details about the computer.