I'm having trouble getting the miner stable on CN-Heavy.

I have my 12x 1050 TI rigs running stable on +175+750 (clock/mem) 72% PL ( same as 1050TI with 6 pin power at 60% PL ), but i cannot for the life of me figure out why some of my 1070 TI Rigs, 12X 1070 TI, are just not hashing at all, it seems none of them want to hash higher then 8KH/s as a total rig.

I can leave the OC completely off, or my original OC that i had, makes no difference

Windows 10 PRO, latest Nvidia Cuda 10 drivers, 82 GB swap file

Any insight?