Acer Veriton M6620G
BIOS P21-A0
BIOS P21-A0
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P21-A0.bin.zip
4.5 MB · Views: 339
4.5 MB · Views: 339
motherboard code and file bios old error ?.
mobikomp
Registered member
Bios P21-A0 is not working on Q77h2-AM. 4 beeps imadinately after power up. Tested on 2 100% working MOBOS with ROM corrupted during update failure.
PCI diagnostic card TL611 PRO code 55 - The register has been restored and will disable the address line of gate circuit A-20.
Below ROM is working but need ME cleaning, as far as I checked it is somehow custom(?). Tried cleaning it but without success.
PCI diagnostic card TL611 PRO code 55 - The register has been restored and will disable the address line of gate circuit A-20.
Below ROM is working but need ME cleaning, as far as I checked it is somehow custom(?). Tried cleaning it but without success.
mobikomp
Registered member
100% OK, just now finished programming bricked ASUS and all works fine. As I mentioned before, 2 mobos, 2 chips - same BIOS, same issue. After flashing "dirty" BIOS mobos behave differently to what happens on your file.
Your BIOS is fine, there is a difference in KBC firmware, I guess, between Veriton M6620G and S6620G. Could you please clean ME in file I have uploaded? It is Q77h2-AM form S6620G.
Last edited:
check more hardware.
mobikomp
Registered member
tested on 3 mobos, I took one working properly and after flash the same 3-3 beeps
