So do you think a single 1200 will work for these units. I also plan on adding a knob that I can control the fan manually. Let me know what you think I already have a design that I might try to create tomorrow.
I do not think a single 1200 would work for this, just on power alone. Then there's the complication of both sides needing the 24-pin PSU connector (though you could get a splitter for that). I'm thinking a good, solid 1350 could do it. But these are just guesses. If you're like me and have a MicroCenter in the area, they have a great return policy both for unneeded and nonworking results. So far I've given them back 2 CoolMax 1000ZUs and 2 SolidGear 750 Neutrons.
I was thinking that you just need a splitter. To run so you can power the 2 blades. Would just need one side. The signals are done by the avalon control unit. If there is enough juice to go around you would just use that. Split the lines that is powering the two blades. That's all you really need right? What does the CPU pins really do for the miner other then send it power?
Splitter should do it. Someone else posted that both sides need the 24-bin PSU connector so you can't just get away with fully populating the PCIe and EPS connectors of the 2nd card and it must have a 24-pin also. But, if the PSU is beefy enough, a 24-pin splitter should work just fine - there's really no way for the boards to know the difference if the power's there in enough abundance.
It was stuck in Shipment Information Received limbo for 3-4 days before it started moving fast. 
looks like 3 modules where damaged in shipping ill have to take them apart tomorrow and see if I can fix any of them. I am currently hashing at about 170gh with no fan issues with two corsair 750w CX modular power supply's currently on sale for $79.99 at newegg if you buy them before midnight they also come with a $20 mail in rebate making the final price on them $59.99. 
