Silicon for B2 and the complete full-pull MPP were allegedly ordered months ago at the same time. Maybe they have massive yield issues?
from what I see in other threads:
https://bitcointalk.org/index.php?topic=269216.msg5058225#msg505822535% bad systems arriving (so pure wafer yield should be a lot worse) is about the same results I got: 4 systems arrived and only 3 work fine (25% bad)
My RMA request is being postponed each time with the excuse "wait for the new firmware, it might magically fix your problem"
Great... a software solution for a hardware bug ;-)