I'm using it, don't bother there's no improvement. Actually slight decrease in drive index scores. And no increase in fsb as someone reported. All it is is bios 18, with the newer silicon image bios that asus released for the a7n8x.
J.
*edit* if you do want it, lemme know i'll send it over to you. Be aware there are 2 of them out there, 1 is strictly for the version 1.X board, the other is for the 2.0 board.
J.