I'm 100% new to anything electronics related and I am trying to learn it as a hobby. I was an electrician for about 10 years, but electronics is something I was always interested in, but didn't know how to get into it. The 80's didn't have internet like today! I purchased 2 used broken 3080 Ti's. A Zotac and a Gigabyte. I decided just to jump in feet first and figure it out as I go. The PCB for the Gigabyte is greek to me right now, but I have verified voltages except PEX and memory fall off about 10 seconds after turning the PC on. All other voltages remain. ChatGPT mentioned this site to me...