Check your power cables and make sure everything is connected correctly. If so, you might not have enough power running your GPU. Try removing one GPU card and turning it on. If it turns on, then you know you need to size your PSU up.
Bro, seems like one of my plug from a power cable that sustain one of my PSUs is fried, is probably because of that, right ? i will fix it and try miners again.
That problem is with every miner, from ETH to ZEC.