Posted 06 February 2007 - 03:38 AM
Socket 939 and AM2 aren't interchangable. It was probably just a mistake that one was listed with the other.
As far as getting one goes, it seems like 939 is being phased out. When I got my system a few months ago, there were as many 939 Athlon X2 processors as there were AM2. Now it's hard to find them. They're around, just in smaller quanities.
You'll need a socket 939 one, though. You can't use AM2. Make sure you can use an Athlon X2 at all. Your motherboard may not support it.