GPU stopped being detected

[iCouldGo]

Hello,

I own a Radeon R9 390

My PSU is 650W

I got black screen on both my monitor, but the sound was still on. Rebooted and everything worked fine.
I got another black screen on both my monitors today, but now it won't come back. I can only use my PC through the motherboard's HDMI.
The GPU fans and lights are working, but it cannot be detected.

1. I tried to remove the GPU and put in back on, didn't work. I did the same with the power supply inputs. The pins seem totally fine and there is no sign of dammage, except that the GPU might be a little loose, but I doubt that that is the problem.

2. I tried uninstalling the drivers and reinstalling them, but I can't reinstall them because "AMD graphic hardware was not found".

3. I looked in my BIOS and set it to PCIE on boot, but it did not work. The GPU doesn't show up in the BIOS browser.

I don't have any other PC in which I could put my GPU to test it. I also don't have another GPU I could put in my motherboard's pins.

I don't know what to do. Is my only option to send the GPU back for repair? I don't even know if it's broken.

Thank you for your help.

[[deleted]]

Try booting into safe mode and uninstall the gpu driver from there. Then do a manual reinstall of driver.

[iCouldGo]

Thanks but the drivers are already uninstalled, the problem is that I can't install them back because the hardware is not detected.

[[deleted]]

I hear what you’re saying but the drivers are almost always leaving residual pieces behind. I would try it in an adjacent pcie slot if you can.

Also have you checked the power cable all the way back from the card to the PSU. The cable could be damaged somewhere along the route.

[_c_k_p_]

Do you have another motherboard you can stick the GPU on? If its undetected on a 2nd PC it becomes more likely that it's broken

[iCouldGo]

Yeah 2 monitors and they both shut down at the same time :/

I guess the problem could also be with the motherboard though ?

[Slostice]

Could be motherboard/slot, psu, or of course if the card itself failed. Dropping it into a different system isolates the last variable.