[SOLVED] GPU running, fans on, RGB on but screen is black

Jan 21, 2021
1
0
10
Hello,
I've recently bought an AORUS GTX 1070 GPU. I've added this GPU to my younger brother's PC since I was missing some other parts for my PC. When I installed the GPU and turned on the PC, I've noticed that the RGB is on and the fans are spinning but I see nothing on my screen, it's just black. I have also tried installing this GPU on my friends PC and the issue stays the same. If you are wondering, my brother's PC consists of a i5-4460, 8gb ddr3 ram, h81-m mobo. My friend's PC consists of Ryzen 7 3800, RTX 2070S and MSI X470. Please help, since i spent a lot of money on this card but the seller denies the warranty for thinking I've done some physical harm to the card, but i haven't. Thank you afterwards.
 
Solution
update the BIOS of the H81 mobo and reset the BIOS by jumper
install the GPU and try again

did you try different video cables/ports?