The safest bet is to assume that in the lack of any information to the contrary, your board does not support dual channel DDR. If it did, there very likely would have been some sort of mention of it in the advertising material.
this question is about daul channel ddr. i have been looking for information about my board ( http://usa.asus.com/prog/spec.asp?m=A7N8X-X&langs=09 ) to see if it would handle dual channel ddr, the cpu i am using is an AMD Athlon XP 3200+, 400MHz FSB,2.2GHz. i went to the asus web site and found my board, and a list of compatable vendors, but it doesn't say if i can use dual channel. any help that can be provided would be great.