Hello,
It looks like you need a new BIOS version to support your CPU.
http://www.asrock.nl/mb/cpu.asp?Model=X79 Extreme4
We can send you a new BIOS chip, with BIOS 1.60. This will support your CPU. Then you can simply remove the BIOS chip, and plug in the new one. Please see attached PDF. Please give me your address if you would like to receive a new BIOS chip. Thanks.
If you have an extremely friendly dealer, maybe they can update the BIOS for you, while using an already supported CPU. Then you do not have to wait for the new chip to arrive.
Best regards,
ASRock Support
ASRock Europe B.V.
Bijsterhuizen 3151
6604 LV Wijchen
The Netherlands