I know that but I always thought there was no nForce4/500/560 SLI AM2-Board out there that got an update because no mobo-manufacturer bothered to make one.
Seems like the two boards are exactly alike, so you should be able to simply flash the M2N-SLI BIOS. But you should prepare a floppy with the original BIOS for blindflashing in case something goes wrong. The same seems to apply to M2N-Plus Vista Edition and the M2N4-SLI, which uses a different soundchip, though.
Seems like the two boards are exactly alike, so you should be able to simply flash the M2N-SLI BIOS. But you should prepare a floppy with the original BIOS for blindflashing in case something goes wrong. The same seems to apply to M2N-Plus Vista Edition and the M2N4-SLI, which uses a different soundchip, though.