Yes all 4 sticks work my bios is at 1.6 the latest i put 1 stick and tried to post i can only gey slot 1 to post but when say i put a stick in slot 3 it wont but when i put a stick in 1 and 2 it post no other combination works i think am just gonna rma the board and the ram and get something else that what i get for switching from an asus board to msi