Now miner mining 166mhs but Miner uses only 12 cards.. Why miner don't use last 13 card? This card cool should heat up as the other 12 cards. Where is problem? Is this card Broken? How can I find out if the card is not broken?  Earlier normally worked.
Miner settings: cor 1060 , mém 2020, fan 80, pwr 3.
Miner:
13 x AMD Rx 560
Asrock H110 probtc
4 Gb ram DDR4
Intel 1151 3900
SSD 128-256gb
13 x Riser
evga 1600 w