Try to download the latest bios version, extract and rename that file to the
2nMx.rom, it must be the latest version (newer than the one that is program on the bios or the same version) for it to work. Just make sure the you name the bios to the rom file the the recovery is looking for. I did this on a Crosshair III Formula and it called for the the file CIIIF.ROM lastest bios as of 5-13-2010 is Crosshair-III-Formula-1602.rom so I renamed it to CIIIF.ROM and copy it to a USB drive and boot the system. It works!!!