Hmm... i just installed a bare bones for a friend. Had to replace the ps from TigerDirect. However i noticed that it is a GA H61M DS2 mobo with dual BIOS and says that it had UEFI. i used his old hard drive so i just booted up fine. However had problems with Ethernet RTL8111 so got the bright idea to upgrade to the 2.26 kernel and finally got it working as well.
The only mention in the manuel of UEFI is on pg. 30 where it says under Boot Option Priorities
Removable storage devices that support GPT format will be prefixed with "UEFI" string on the boot device list. To boot from an operating system that supports GPT partitioning, select the device prefixed with "UEFI" string.
Or if you want to install an operating system that supports GPT partitioning such as Windows 7 64-bit, select the optical drive that contains the Windows 7 64-bit installation disk and is prefixed with "UEFI" string.
i consider myself lucky that i didn't have any problems with this UEFI stuff.
However i can't get into the BIOS screen. Neither Del nor Esc work. The system just hangs... When i do see the image it is not complete on my old Dell monitor. But, since the system works and runs, i'm not about to worry about it. If it's not broke...
Have a great afternoon!