[REQ] Add E5-1650v2 support to Asrock X79 Extreme 4-M

Hi, I spent hours trying to understand how to add e5 1650 v2 support to my Asrock X79 Extreme 4-M (matx), but I'm not able to do it.
It should be 100% supported by the hardware, it's just a i7-4930K after all (fully supported) AND the 1650 v2 is supported by the Extreme 4 (atx) motherboard.
When installed, the cpu doesn't allow the sistem boot at all (00 error code).
The cpu is fine, tested on an Asus X79 motherboard.
It has the MU063E0428 microcode (I used Sandra while testing on the Asus mb), I don't know if the information is relevant.
I tried to update cpu microcode using UBU_v1_69_15, everything was updated and the bios flashed, but that didn't solve the problem (still no boot).
I guess I have to manually add cpu support to the bios, not just update the old one, but I'm lost, I don't understand ho to do it.
Could someone please help?
Thank a lot.

Here's the link to latest bios
http://ftp.europe.asrock.com/BIOS/2011/X...30)ROM.zip

Here's CPUZ screen as requested in other threads (current cpu and motherboard page)