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Trying to fix graphics card

Joined
Aug 4, 2018
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Germany
#1
I have a broken PowerColor R9 280X that I've been trying to fix for a while now. The original problem was that the GPU just didn't output any video anymore. Infact, the motherboard refuses to post if I try to use the card alone. If I put a second card in my PC for video, I can boot into windows, where the drivers don't recognize it, though it does show up in device manager and GPU-Z (I don't have a screenshot of that right now since the card isn't in my system anymore, but I can get one later if someone wants to see it). Booting into Linux Mint causes it to spit out a whole lot of error messages about the card "not responding" before hanging up. I tried cleaning the card and checking it for physical damage, but there is none. I also re-flashed the BIOS with a known good one two times with no effect. I'm also pretty sure that the GPU is ok, since the card's cooler does warm up when I power the card, so it is doing something.

Is there anything else I can try to fix it?
 
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#2
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#3
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