After changing my rigs to NIST5 im getting 13 MH/s on my 280x rigs but temperatures are really high like avg 71c* wtf...
71c is not hot for a gpu. Anything beow 85c is OK IMHO
i tought this was meant to be cooler than x11. It consumes a bit extra watt power compare to x11. is 950w normal for a 5 x 280x rig???
When you're getting 3+ times more hashrate than X11 it's going to run hotter and use more power.