Okloolikese

Not two, try it one by one. The GTX are just spare card.

The title are my assumption for now. My specs, old build. Motheboard HP IPMMB-FM (driver version according dxdiag "FOR_821.rom vFOR8.21") CPU I5 3570 RAM 8GB GPU Powercolor RX 580 4GB and Gigabyte GTX 650 OC 1 GB PSU GAMEMAX 650W Display Monitor are just generic VGA samsung monitor Problem, any display output that digital are just giving no signal. No signal from onboard DVI-D (the DVI-I works just fine). All output port on RX 580 giving no signal. All digital output port on GTX 650 are the same, but the VGA port are working fine. It all begin when i tried to troubleshoot audio problems on this system running Windows 10, I'm trying to downgrade it to Windows 7 to see if the motherboard are have problem with Windows 10. Failed to install Win 7 via bootable USB cos the installation file are corrupted, sent my PC without OS and just left it be for couple of days cos i got assignment to other city. Came back yesterday, and everything happened. What I've done... Reinstalling back Windows 10 succeed. Installing RX 580 driver, still no signal. Changed toGTX 650, installed the driver, still no signal from all digital output, VGA works fine. Any solution with this?