Are people still doing this one controller and 6 blade or 9 blade hack? I'm confused as some of the above comments make me think its not a good idea. I have a batch 7 that has 9 18 pin slots but came with the 162 chip board. Can I take the 162 chip boards out and put in 6 135 chip boards as long as I have enough PSU?
My 1st guess is that the BB's GPIO circuits can't handle the load of that many hash boards tied to it. Betcha Bitmain is using unbuffered BB' signals and that when overloaded it takes out part of the BB....
Since small computers like RasPi, BB, Audrino, et al are not known for um, 'robust' power protection, if the feed for the 3.3v used for GPIO is overloaded that could lead to Majik Smoke getting out...