Yes, I am aware of the issues that have been discovered... hence the rollback to b11 during my testing.
The errors persisted with our without the SASLVP-mv8 on each version. As I posted, the log I have attached is of 2 drives running off the motherboard sata ports. All other cards and drives have been removed. The 2 drives are known good drives that perform with no issues on another unraid setup.
What leaves me scratching my head, is the fact that the same errors appear when there are no drives connected at all and no cards installed (sata card or vid card)
I have disabled a few things in the bios of the board, I will post back with results.