Actually, it depends on the version of bios the board shipped with. You can identify the four-digit bios build on a long, thin white label with a bar code that's literally on the edge of the board.
The last 4 digits of this sticker identifies the bios build (I.e. 0906) Then check the CPU support list at www.support.asus.com
So in other words: you won't know until you get the motherboard. There's a very similar thing happening that the 990FX motherboards require a flash to support Vishera chips.