I guess I'll broaden this a bit: Can Xeon Phi's work in the S2600 series of 2U servers? How can power be hooked up?
I opened up a chat case with Intel support and found that I need to change the PCIe Risers out with part number A2UL16RISER which includes the power connectors. Also a AGZCOPRODUCT air duct to route air into the PHI's. Also, technically this 31S1P isn't compatible with this server. The 3120A is. We'll see how it goes...