Intel has issued new MM numbers and product codes for all boards with the Intel® 6 Series Express Chipsets based on B3 stepping. The new product codes have a "B3" suffix added to the current product code.
The table below identifies Intel® Desktop Boards that have changed and shows the new product codes and board AA numbers that use the B3 stepping. Earlier revisions of the AA number use the B2 chipset.
Refer to B3_Labels.pdf to view images of the box and labels showing the new product codes.