try looking at this pdf, start at page 95 for how the backplane cables are attached. [URL]#Iwork4Dell
We ordered a refurbished R720XD. It doesn't have any software installed currently this is all just initial testing and checking of hardware. It recognizes all the drives plugged in, and will let me create virtual drives. However it doesn't register that they are plugged into the enclosure. I have no indicator lights on the front, and anytime you try to check something on the enclosure it says that it doesn't detect the enclosure. Is it a bad backplane, or is there a cable that has come loose in shipping that could have come loose. I checked all the ones I seen but admit I could have missed it.
Enclosure not detected R720XD