Hello. I recently built a new PC and it was working fine until I upgraded the motherboard drivers and service pack 1 at the same time. Now when I turn my PC on the light on the PC comes on, I can hear the fans go round inside, but the monitor says "no signal" and the restart button doesn't work. When I turn it off and on again, I get a message saying "overclocking failed!" and my only option is to press F1 to get into the bios. Once there I quit without saving and Windows loads absolutely fine. I have an asus maximus V gene mobo. Does anyone know what's happened? I've tried resetting it using the reset button but it only worked first time I started it up. Thanks for your help in advance.