So I recently uppgraded my GPU from a gtx 960 to a 1060 so I figured I'd give to 960 to my little brother, since he needed a new graphics card anyway. I uninstalled the radeon drivers for his ryzen 3 2200g, shut down the system and disconnected all the cables from the IO. I then installed the 960 into the PCIe slot and connected the 6-pin power cable. After reconnecting all the cables to the IO except the displyport whitch I connected to the graphics card I started up the system again. I got into windows as normal but when I was installing the nvidia drivers the system crashed and after that I can't get paste the BIOS splash screen without the system chrashing and needing a long press on the powerbutton to turn off. However when i disconnect the graphics card and put the displayport back in the motherboard everything works fine. I have tried to go inte the devicemanager and disable the vega 8 graphics, disabeing the intregrated graphics in the BIOS, reseting the BIOS and updating the BIOS but the problem still presists. I can get into the BIOS and the windows auto repair thing using the 960 and I ran the windows startup repair but it couldn't detect any issues. I can't figure out what causes this problem and what i should do to fix it, any suggestions would be very appriciated, thanks!
Full system spec:
AMD Ryzen 3 2200G
MSI B350I Pro AC
Crucial Ballistix Sport LT Red DDR4 2666MHz 2x4GB
Cooler Master MasterWatt Lite 400W
Kingston SSDNow A400 240GB
Kolink Aviator M
AOC G2260VWQ6
Full system spec:
AMD Ryzen 3 2200G
MSI B350I Pro AC
Crucial Ballistix Sport LT Red DDR4 2666MHz 2x4GB
Cooler Master MasterWatt Lite 400W
Kingston SSDNow A400 240GB
Kolink Aviator M
AOC G2260VWQ6