Bitcoin Forum

 I Have an 841 that just wants to run at 15.8TH/s+ no matter what I set the voltages at even the max temperature setting seems no help.

https://i.imgur.com/Tis3Ma9.png

 Once it goes above the max temperature it will slow down to normal speeds.

I was wondering a few things.

• Is this a new addidtion? Do both 841's have the same firmware?
• When you change the voltage options does either machine operate differently? Have you tried just the 1 machine on it's own for a baseline?
• Are you just basing off the GHSasc numbers? If so I think that is just a peak hashrate reached not sustained.
• Can you post a copy of your API log? Might be something in there.

I remember with the 741's there were some lottery units based on their chip design that just outperform other units, not sure if this is true for the 8 series. You may have gotten lucky if there are no adverse affects. I noticed you said it slows down after reaching the high temperature limit, does it ever shutdown?

Looking at your screenshot, it would appear that your GHSav is what one would expect it to be, namely, ~13.7TH/s each. The GHSasc numbers are something of a mystery to me in terms of the actual numbers they represent. I find it better to go with the AV/5m/15m/etc.