Modifying MAC@ (or computing AMI BIOS checksum)

Discussion in 'BIOS Mods' started by me255, Jul 3, 2011.

  1. me255

    me255 MDL Novice

    Jul 3, 2011
    I received 4 ASUS motherboards with the same MAC address (that's annoying for PXE and ghost...).

    I first tried to use "afudos" (AMI provided) and the "/M" switch to edit it, without luck as I get an error message "BIOS does not support AFU".
    I decided to edit the BIOS to change the MAC address but still without luck as "afudos" (ASUS provided) tells me "boot block checksum not valid".
    I then tried to patch afudos to not calculate the checksum but "afudos" (ASUS provided) doesn't seem to program this part of the BIOS... Is it my patch that is too radical or the tool provided by ASUS that is minimalistic ?

    If someone could explain how to compute the AMI BIOS checksum or give pointers that would be nice.
    Thank you very much in advance !