KNC Neptune - Problems

I have a KNC Neptune with 5 cubes and LCD controller. Seller showed me a video working, packaged it up and sent it to me. I have it here now, and it does not recognized the cubes are plugged in nor does it start mining. It shows a yellow light after it starts up for a split second, and then it has both a blue and green LED on in the same place and a flashing blue LED. It does not hash or recognise the ASIC boards are plugged in. It recognised one cube ONCE and it started with a flash white light not yellow, but now its back to the yellow flash again. What is it likely the problem is? The one time it worked the display showed Neptune XXX with the IP address. It says miner status stopped. I can get into the interface. I notice when feeling the chips for heat (with an ESD wrist strap on) one of them burns my finger to the touch, the biggest one. Is this a sign of a bad controller board? These are insanely hard to get!

Jacob