Nearly a year ago, I came home to find my GPU fans spinning very loudly and my computer getting no video at all. So I restarted it, still no video output from the GPU, GPU fans are spinning at 100%, but the computer still boots as I can hear the windows startup sound and remote desktop into it. I tried reseating the card and unplugging everything and plugging it back in, still didn't work. Even tried the card in a friend's build and it still didn't work. So I sent it back to Gigabyte and they sent me a new card.
Card #2 only lasted about 2 days in my build before it happened again. I checked the Windows event logs and nothing suspicious happened. Temps were also all normal, my build stays fairly cool during idle. And the only stress I had put on the card was a few hours of DayZ and Battlefield. I also don't leave my computer on for very long periods of time. Typically only when I'm at work so I can remote into it.
When card #3 arrived, I swapped the motherboard and PSU for brand new counterparts (I was a little due for an upgrade anyways and I had the brand new PSU for free from CoolerMaster laying around). Here's my build before I swapped the hardware, and here's my build after I swapped the hardware. With that swap, I changed absolutely all cabling besides the cables coming from the system fans (obviously can't change those without getting new fans completely). Card 3 lasted for maybe a month and a half, possibly more I can't remember now. Anyways, it did the same thing as the other two.
I don't know what could be causing it after swapping all hardware where the issue could have originated and all the cabling. I'm very sure everything is plugged in securely, I'm taking all proper static prevention precautions during the build, no metals inside the case are touching and the motherboard headers + risers are all fastened and installed properly. I even got a brand new surge protector to prevent anything bad from the wall reaching my PC, and I also moved my build to the other side of the room so I'm on a different power rail. But still, card 3 shit the bed.
I'm also very sure that Gigabyte is sending me different cards each time and not the same faulty card (can tell by serial numbers). Each card also had varying manufacture dates, so they were even from different batches from the factory as well.
Any guesses? Anything at all? I'm super stumped and the only thing I could possibly think of is maybe the RAM is short circuiting the GPU (I've heard of RAM to cause some weird things), but I ran Memtest86+ through 20 passess and it found no errors, saying my memory passed 100% of tests.
Any help is really appreciated, I just want to be able to play games again without having to worry about this damn thing. I'm willing to answer any and all relevant questions. My entire hardware listing is in the above links from before and after I swapped hardware from my build.