one i'm trying to connect is a 600w xilence psu. In the setup thread it's written to buy 450 w psu. I think the make-shift jumper wire out of a power cable maybe the issue or xilence psu takes more than to just cross green and black cable i dont know.
If either of the above are your PSU, please note there are TWO 12V rails. Usually this means 1 rail supports the ATX mobo connectors and Molex wiring, while the other is dedicated to the PCI-e connectors.
If you run both sides of your miner using only PCI-e cables on the one rail, you will be using more power than the allowable amperage (at stock speeds, ~360W or 30A). Even if split up properly, you should make sure each rail is capable of a minumum 18A to allow a little bit of headroom.
It sounds like you are running them on only 1 rail so the system starts fine at low power draw, but once it connects to the stratum server and begins to pull the full amperage required for hashing, your PSU rail is overloaded and it shuts down.
use the 2x4pin ATX connectors for 1 blade and a pci-e cable for the other and you should be fine
second is on the waiting on the customs third one will be shipped after January fourth hell yeah it's grinning time. 
