My PC stopped recognizing my R9 280X. It doesn't show up in Windows device manager, and the AMD graphics driver installer does not detect it either. I am currently using the default Windows graphics drivers.
Here's what happened:
My wifi adapter was acting up. It would disappear from Device Manager and just show up as an unknown device. Restarting my PC temporarily fixed this. I decided to reinstall its drivers. While the installer was running, my computer suddenly restarted. By suddenly, I mean installer one second, mobo boot image the next. When Windows loaded up, my wifi adapter was working, but the default graphics driver was active. I tried opening Radeon settings to troubleshoot, but it said that no drivers were installed. Next, I downloaded AMD's latest GPU drivers, but on the install selection screen, only "Application Profiles" and "AMD Install Manager" were shown. I proceeded to uninstall the drivers via the driver installer, after which I attempted to install them again. I was greeted with the same screen. I downloaded the AMD chipset drivers just to be sure, but its installer showed the same options. The Internet suggested booting into safe mode and using Guru3D's driver clean tool. That didn't help at all. In Device Manager, my card does not show up; there is only an unknown device.
I have 2 monitors; one uses HDMI and the other uses DVI. The DVI monitor is my secondary, and it does not display anything when the default graphics drivers are active. It does show my mobo's boot logo, however. My GPU is definitely still functioning, as the monitors were plugged into it through all of this, but it seems to be unrecognized by Windows.
Mobo: Gigabyte GA78LMT-USB3 rev 5
CPU: AMD FX-6300
RAM: 2x4GB G.Skill DDR3
GPU: AMD R9 280X
PSU: EVGA SuperNOVA 650W 80+ Gold
SSD (C:): Samsung 850 EVO 250GB
HDD (H:): WD Black 1TB
Wifi Adapter: Edimax AC-1200
OS: Windows 10 Professional
When I get home (around 22:00 UTC), I will try taking the graphics card out and putting it back in. If you need more info or clarification, please ask!