The MSI and ECS ATI Radeon Xpress motherboards should be able to run dual core with BIOS updates. Unfortunately, the MSI doesn't have voltage adjustments, and the ECS has less features and is not exactly an "enthusiast" board. It does have limited adjustments though. I've been looking for a good s939 mATX mobo, and there doesn't seem to be any that have the BIOS flexibility I'm used to with my NF7-S r2.