i spam buttons for entering the bios, on biostar h81a mining edition, doesnt show that biostar picture for loading saying press del or f2 to enter bios setup, and when i press the buttons knowing by my experience that those are the buttons, the screen is black. no signal. but, when i restart it goes to windows and gets signal on a monitor without a problem, but just for windows. i tried 6/6 gpus and none booted to bios, but booted to windows 10. could it be a problem with programming the machine boot (failed bios) or something else? thanks