Hello, I have a mining rig with 6x 1080 Ti but there is a card doesn't behave right I'm mining on nicehash and the whenever this card is connected the miner works for about a minute or two and show the message "unspecified launch" or "illegal memory access" i googled these errors it turns out that this errors comes up when there is a faulty overclocking but all my cards are running in stock speeds so i tried ccminer and it crashes or never starts or keeps spamming in the console "failed to validate results on cpu" when the errors mentioned from nicehash miner comes the rig becomes very slowly until i stop the miner and some times it crashes the nicehash miner and sometimes the whole windows and the rig is working perfectly fine with the other 5 gpus what should i do is it a gpu bios problem or what? the cards which is faulty is "EVGA GeForce GTX 1080 Ti SC2".

Thanks.

Forgot to mention i even tried underclocking this faulty card while trying it by itself and still the problem not solved.