Intel's P55 chipset moving to B3 stepping
 

Intel's LGA 1156-supporting silicon flagship, the P55 chipset is now scheduled for a stepping conversion which will see it move from the current B2 to the B3 'revision'. The B3 stepping will come with new MM and S-spec numbers, a processor MRC/microcode update to support future processors, and an recommended storage driver upgrade (from Intel MSM 8.9 to RST 9.5). http://www.tcmagazine.com/comments.php?id=30839&catid=2