I just bought a new system and had an HD 7870 GPU laying around. I used it in my build, but after windows loaded, i got a screen with a solid color (Mostly dark green). I tried troubleshooting the pc. It wasn’t the monitor. I tried the GPU in another Computer, but the problem persisted. I tried another GPU (GTX 1060) in the original PC, and it ran smoothly.
When I go into the BIOS, the GPU is outputting just fine, but as soon as windows loads the screen goes black/green. If I boot up in "Safe-mode" the GPU works just fine. I tried installing the drivers hoping it would help in "non-safe-mode" windows, but it would just say "Error 99". Error 99 is the only error code I have been able to get out of both of the pcs with the faulty GPU.
I have tried everything, but nothing seems to work
The pc has the following specs:
CPU: Ryzen 2600x
GPU: HD 7870
RAM: Hyperx fury 16gb 2666mz
MOBO: Asus b450-f
PSU: Corsair cx650m
SSD: Kingston A1000 M.2
I am using windows 10 pro 64bit
Nothing overheats or is doing anything weird.
Thanks in advance 
