I built a pc. I have ASUS Z87-C mobo. 10 minutes ago I wanted to try how my pc performs while running EPU power saving mode. So in BIOS I put it on and hit save settings. Then my pc turned off. And then I put it on, but it doesnt show anything. It turned on, but it doesnt show anything in my monitor. How can I change it back to normal, because it wont boot even bios? I just want that my pc runs normally