Hi Latin, I don't recall anything about a permanent DMI but when I got the moded BIOS I have, it was kindly provided by someone in the BIOS mod request thread. I don't recall anything being done with the BIOS backup so I would think it's not permanent. I could just try the ASUS bios but if 2.1 was not retained I'd have a problem. I should assume it's not permanent and with that I need to know what to do, if anything , with RW Everything. I'll look to find what I need to do to make a USB DOS. I'd be interested in knowing more about making the 2.1 permanent so I only have to download the new BIOS from ASUS.