Has anyone else experienced an issue with Claymore ZCash Miner v7.0 regarding only one of the GPU's working at half it's strength?

http://imgur.com/e9ufHz7

These three rigs are using all 480 8GB Sapphire Nitro+ cards.

All of the Sol/s is great except that one...


I have hard reset, checked all the cables, removed the overclock, and switched the bios yet nothing will budge it.

No matter what I do; I can't bring it up to speed. The lazy swine.


Does anyone have any suggests?