My friend personally modded the BIOS so he was going to go back in and redo it and see if he could tweak some things. It may turn out to be a component we bought off ebay though.
We got some new PCI-E 4X Female To NGFF M.2 M Key Male Adapter Power Cable Converter Cards (ebay title, i can list it if my label doesn't make sense) that had the OC label on them which our others didn't so my friend started to change them out and he said he thinks it was those actually. We use those because it allows us to use all 8 slots on our mother board instead of the 6 that it could normally handle.
Basically the good news for us is if it is this part, then the other cards we have were not the cause of the stability issue. Sucks that a minor part like that can be an issue but now we are even better at trouble shooting our rig so will take the loss of mined coin as a lesson learned cost.