I just got a new second monitor for my newly build gaming PC and , whenever i enable the on set graphics on my ASRock motherboard( so I can connect the second monitor to the HDMI port on the motherboard,) the PC won't ever shut down and when I attempt to power it off, the PC just stays on but the display turns off so the only thing I can do is hold the power button. And it only happens when I enable the "dual monitor"(so it turns on the motherboard video ports) setting in the bios of the motherboard. It's getting really annoying. Any thoughts to help.