If i disable the secodary sata Controller on my DZ77GA-70K Board in BIOS booting is not possible anymore, neither from DVD, HDD or USB. And yes I Change the boot order!!! (Nothing is attached to that Controller, so I don't Need it). This happen since the last bios update to Ver. 0066.
The main reason I want to disable thatController is because, during shut down of Win8 the HDD spins down and the spins up again to spin down for final shutdown - This never happend with the last bios Version. So please fix that.
Another bug of the bios is about usb mouse and Keyboard: I use Mouse+Keyboard from logitech with wireless Receiver. These are not recognized by bios. They are only recognized by bios if a USB-wired mouse or Keyboard is attached - I hope that will be fixed also.
Tomtom, Thanks for the information, we already reported that issue to the engineering team.
For additional information please check the following thread /thread/41860 https://communities.intel.com/thread/41860