Lower Audio capability as in 6 channel vs 8 channel for the G41, the G43 can have a HDMI port the G41 does not, also the G43 can have raid options but probably will not on a OEM board. The voltage regulation section will also be more robust more like the P45 setup on the G43. But no you won't be able to use the recovery disk, as the board unless a refurb replacement will not have the OEM bios and the network controller and sound will be different between manufacturers(Actually between Asus models those 2 can vary).
