Not to hijack the thread, but is there different cooling options for the S1 blades? With all the abundance of blades being sold on eBay right now, along with the progress this thread has made, I can't help but to get excited over the prospect of a dyi multi terahash rig.
There's two almost finished ideas in the thread: one by J4bberwock, and the other by myself. Take a look. I'm they could be undervolted to the hash point similar to the bitfury 400G rigs where each chip was doing between 1.5 - 2Ghash and they would not need heatsinks and could be mounted in a high density fashion.
Once one of the ideas bears its fruit I'd love to see something like this happen
Oh lord there's my next home project; wife's gunna hate me
This is from a thread based on user to user support and ideas for the s1 to s3 upgrade kits