I have a new ivy bridge setup with an Asrock Z77 Extreme4 mobo. Every time I want to enter BIOS I have to bring out my old ps2 keyboard again. The weird part is that all the usb drivers are installed, and I can use my mouse in BIOS but not my keyboard. Ive tried switching from the usb3.0 and 2.0 slots with the same results. Any help is much appreciated.