We built a mining rig using 9x6700xt xfx gpus but it would not work with 9 so I did some reading and heard they say the driver only supports 8 so we removed one card and it was working fine with 8 cards and the newest driver for about 4 hours then it crashed and after that only detected 7 cards. Device manager picked up 8 but msi afterburner and the miner only 7. So we removed the driver and installed an older version of the driver. This fixed the issue for about 24 hours then it crashed and now it seems to only pick up 3 cards. Please help ?