Asus sabertooth 990fx r2.0 motherboard. Vga and boot device led stay on. Have removed motherboard from case and disconected everything except cpu and fan. Power on get 1 long beep 2 short beeps without ram installed. Power off install 1 stick ram. Power on get 1 long beep 2 short and dram led stays on and vga and boot device leds no longer stay on. Power off reinstall vga card. Power on get 1long beep 2 short dram led stays on vga and boot device leds no longer stay on . Monitor still says no signal.