One other question: My BTC is running on turbo.  The hashboard shows:

HASHBOARD #0
Hashrate 3.12 Th/s
Temp 68°c   
Fan Speed   2828 rpm
Power 202 W    
Voltage 8.26 v   
Error   0.9%
Active ASICs 44

However, the hashrate is 3.10 Th/s and the temp is 81.67°c at the top left of the dashboard.

While I'm inclined to believe the lower number, he top number has me worried.  Any guidance?

Thanks!