I have downloaded the Linux Processor Microcode Data File, searched for the 0x00000f65 string, wrote a program that translates text to binary format, updated BIOS with the new microcode using the Phoenix Bios Editor and flashed the new BIOS.
The motherboard still works with standard 6x0 processors. 6x1 processors remain in P.O.S.T. hang with 0x67 (Initialize multi-processor APIC).
Does anyone have an idea what´s wrong???