x10dax

My sm x10dax dual xeon board (dual e5 2683v3 on board, working fine) has stopped recognizing graphics cards if they sit in slots 4 and 5. Slots 4 and 5 are associated with the second cpu (according to manual). Slots 1,3,6 work fine. These slots go with the first cpu. Gpus in 4 and 5 do not even...