Best is to make the rig stable with original bios and then working your way to custom bios for a higher hash rate.
Did you add -dcri 18 in your claymore bat file?
-dcri 6 for single coin mining.
-dcri is not in my settings
same as -dcri 18 or 6
Just asking but why would you make it stable with original bios then change it to a modded one anyway