I don't know about that motherboard specifically... but i do know that Asus doesn't update it's documentation or website to show what 'new' processors their motherboards can support.
For example, the Asus A7M266 I have only mentions support for up to 1.4 Ghz I think... But, it can run all the XP processors if you are on BIOS 1005.
I suggest you go to amdmb.com and go to the Asus forums there and ask if anyone can definitely answer your question... but my guess is that motherboard will do it no problem