When a new block is added to the 100 in this average, the oldest block drops off, you have to take that into account too.    J. Balsley

My ups tracking shows ready for pickup at 1:10AM on the 20th China time, picked up 5PM.  jfb

Yes,  I suspect your method also reduces the overall noise level due to the filter in the front.  I am going to try it.  Jbbtc

Hello,  The whistle on the S7's (my B2 s9 ships next week) is caused by an organ pipe effect in the air columns formed by the metal grill.  It can be interrupted and largely silenced by a strip of duct tape along one edge.  Experiment to find the optimal position which doesn't restrict airflow significantly.  A better solution is to remove the grill completely but as these fans can remove a finger, don't do this unless the entire miner is in a sound insulated box and the front fan cannot be accidentally touched.  As the S9 has the same fans and configuration as the S7 I expect this solution will work there as well.  Also, I have replaced the front fans on my s7's with a delta fan described as "the beast" in some ebay ads.  It has a top speed well over 5000 4pm and draws too much current (probably--who wants to risk it?) to power from the controller.)I power it using an extra pcie connector but keep the original connection to the fan connector for the speed control line and the tachometer.  The miners have been perfectly happy at 98F in my garage with a little underclocking. 

jfbbtc

After the reset it was set at 700.  None of the frequencies were marked as default.  JB

Hello all,  I have a batch 6 machine which I found necessary to hard reset (don't ask).  Prior to that it had been Hashing along at 4.03 as expected with no problems.  After the reset I watched it visually until the light and sound show indicated it was hashing ok.  When I went to the computer to look I found it was hashing at 4.7 Terahashes/sec, temps were ok, error rate 0.0001.  The freq was 700.  Do I have a batch 8 in disguise?  Could it have failed some batch 8 quality check and just had the freq turned down to 600 rather than loading software with default 600?  Anyone else with a batch 6 had this experience?  J. Balsley