Captain obvious here. There's a problem in that picture.. water blocks should NOT be connected in series...only one asic will get useful cooling, the other will overheat quickly and probably fry itself or the board.
you dont understand water loops. take a look at SLI/xfire water loops some time.
I lol at the low hash rate and high error rate though. wonder how many watts that thing is drawing..
sooo glad I bailed the BFL ship after getting singed on my 65 nm gear.
What do you expect? Those are the original boards with too thin a layer of copper. Heat prevents them from running at speed, so they use the grade B chips. Lesser quality chips = lower speed and higher errors. Kind of silly to waste 1TH of chips on a board that can't run that fast. Kind of like putting a 454 into a car with a 30mph governor.....