Re: S7 controller has nine 18- pin jacks So what can we do with it?
I just hooked two units together via the rails and then unmounted both control boards and place a single bb board and data port board in between the two miners held in place with a little velcro. The original cables the S7 ships with are plenty long enough when set up this way... 
[img=http://s27.postimg.org/z2bmhxs3z/IMG_0128.jpg]
[img=http://s27.postimg.org/3u31km2dr/IMG_0120.jpg]
point them upwards top to top that allows for vertical and hot air raises.
stack them on a box fan which allows for more air to help fans. also if fans fail the box fan may save the day.
[img=http://s27.postimg.org/z2bmhxs3z/IMG_0128.jpg]
[img=http://s27.postimg.org/3u31km2dr/IMG_0120.jpg]
It would seem to me you could lash together two S7's with a single controller if you were to lay the miners on their sides, so that the "Top Side" were facing each other. Kind of awkward to wire up, but it shouldn't take any "long cables" to accomplish.
It would be interesting to know if the S7 cooling actually requires that the blades be vertical to work OK. While it's obvious what the "expected" orientation is, does it still behave well if it's laid on it's side?
It would be interesting to know if the S7 cooling actually requires that the blades be vertical to work OK. While it's obvious what the "expected" orientation is, does it still behave well if it's laid on it's side?
point them upwards top to top that allows for vertical and hot air raises.
stack them on a box fan which allows for more air to help fans. also if fans fail the box fan may save the day.