Help my!

Motherboard: ASRock M3N78D
Problem: MAC address are invalid in both CMOS and FLASH (Press F1 to Resume)R

RESET CMOS and AFUDOS not modify MAC in FLASH.

MAC address: 0025222D6194

Find dump BIOS for ASRock M3N78D or method for modify MAC address in FLASH for this motherboard.

Thanks.