Hello! For some reason my monitor does not show an image when I try to access a BIOS. Last time I accessed the BIOS, I changed my boot order so that I could boot up an image of Windows 7, which I was trying to dual-boot with Windows 10. Tried booting up the USB, went straight to Windows 10. I thought that maybe I didn't save my changes, so I took the USB out and tried to boot into the BIOS. No image popped up, but I know I'm in the BIOS because when I press the power button, it shuts off instantly. My display cables are plugged into the graphics card. No beeps, either. How can I fix this or are there any trouble-shooting tips that would be helpful? Thank you!