Quick question.  

I've never modded a bios on SmOS before.  Is it safe to do while mining?  (I normally don't on Standard windows/linux)  

Also, I'm having issues reading my bios backups on these cards (XFX RX 570 - Elpida) in Polaris.   In Polaris 1.4 the memory timings show odd numbers, and in Polaris 1.4.1 they don't show any memory timings at all.   Any thoughts?