Fixed, https://forums.mydigitallife.net/threads/award-ami-bios-mod-requests.5863/page-3142#post-1495709
Try to flash the MOD with AMI APTIO V afuwin or afuwingui - flash MAIN block only! (use /P option). In case of "18 - Error: Secure Flash Rom Verify fail" - modified bios can be flashed with SPI flash programmer only
Fixed, https://forums.mydigitallife.net/threads/award-ami-bios-mod-requests.5863/page-3149#post-1501364