A9 error after mobo swap

[Yaser111]

Hi

I had Intel core i7 2700k and Asus Gtx 1060 dual O3G and windows 10 2x4gb 1333mhz kingstone rams corsair CX750 psu and Asrock p67 extreme6 was working good befor swapping I swapped with Msi Z77A-G43 no other hardware changed and pluged everything and checked 3 times after turning on and i read that when changing Bios its better to reinstall windows soo ofc i tryed befor and it didnt boot into Bios or windows and even after fromating SSD main disk and instaling windows on its still there , i read that gpu can cause this problem soo i removed it but no use can someone help me please?

Update : i read a thread here with same prob and the he was told to remove Bios battery and put back , i said to my self my battery maybe embty soo i swapped with new 1 and thats what changed the 2 options i was given were :
1: go to setup (no change) a9 show's after
2: continue (befor it was: use defult values and go to setup) and a9 after
But now I saw a B2 code at the booting segment (then the 2 options I said befor) and now after I re used the old battery because with the new 1 it's repoting (don't know why) if I tried to go to setup there is no error code but only black screen...