Re: (Review/Guide) AvalonMiner 821 11.0 Th/s, 1200W Bitcoin (SHA-256) ASIC miner
I have now updated the extra chapter 'extra) Testing different voltage offset values and writing down miner performance results'.
This time the test was successful and I got some nice results.
Link: https://bitcointalk.org/index.php?topic=2937129.msg30217488#msg30217488
Thanks for your comments lrowland21093 & akadamson!
Thanks! This is a good observation.
I feel stupid not checking if it actually applied the changed voltage offset value.
It is so easy to see at the Processes page.
I will re-do this 'extra chapter' I did later on and test it by inserting voltage offset values
from -2 to +1 using the Cgminer command --avalon8-voltage-level-offset -2.
I have also updated the nicely formatted version with all the recent changes.
The nicely formatted version of this review/guide (February 25, 2018 version) is available for download in my Mega cloud.
Link:
https://mega.nz/#!Zl8zlRSZ!8JKeDllHjtBPUW3ctF3Rap-Dau4TqAVPR6Voy-bS4B0
This time the test was successful and I got some nice results.
Link: https://bitcointalk.org/index.php?topic=2937129.msg30217488#msg30217488
Thanks for your comments lrowland21093 & akadamson!
I posted a note about the voltage offset in the Avalon 8 official specs thread (https://bitcointalk.org/index.php?topic=2616205.msg30730555#new).
It looks like the values for voltage offset enter on the CGMiner Configuration page are being ignored and the offset and some other settings are getting applied to the command line of the cgminer.
Try entering a value there other than zero and look in Processes - at the bottom of the list you should see the cgminer command line and it always has offset of 0 hardcoded. It looks like we can override if we use "More Options" with "--avalon8-voltage-level-offset -2" (figured that out by taking akadamson suggestion and then finding the developer documentation for cgminer on Canaan's github.
For those who don't know or are new to this, the command line options can be found here (just look for the avalon7 options and maybe the options for avalon8 will be similar): https://github.com/Canaan-Creative/cgminer/blob/master/README
So far it is running around 80% fan speed (it was 100% before) with chip temp at 67 C. The hash rate is staying between 10.5 -10.8TH - with the offset of 0, it was 11.2-11.5TH.
Overall it is much quieter.
I don't have a way to test the power usage so if someone else does, it would be a good thing to test.
It looks like the values for voltage offset enter on the CGMiner Configuration page are being ignored and the offset and some other settings are getting applied to the command line of the cgminer.
Try entering a value there other than zero and look in Processes - at the bottom of the list you should see the cgminer command line and it always has offset of 0 hardcoded. It looks like we can override if we use "More Options" with "--avalon8-voltage-level-offset -2" (figured that out by taking akadamson suggestion and then finding the developer documentation for cgminer on Canaan's github.
For those who don't know or are new to this, the command line options can be found here (just look for the avalon7 options and maybe the options for avalon8 will be similar): https://github.com/Canaan-Creative/cgminer/blob/master/README
So far it is running around 80% fan speed (it was 100% before) with chip temp at 67 C. The hash rate is staying between 10.5 -10.8TH - with the offset of 0, it was 11.2-11.5TH.
Overall it is much quieter.
I don't have a way to test the power usage so if someone else does, it would be a good thing to test.
Thanks! This is a good observation.
I feel stupid not checking if it actually applied the changed voltage offset value.
It is so easy to see at the Processes page.
I will re-do this 'extra chapter' I did later on and test it by inserting voltage offset values
from -2 to +1 using the Cgminer command --avalon8-voltage-level-offset -2.
I have also updated the nicely formatted version with all the recent changes.
The nicely formatted version of this review/guide (February 25, 2018 version) is available for download in my Mega cloud.
Link:
https://mega.nz/#!Zl8zlRSZ!8JKeDllHjtBPUW3ctF3Rap-Dau4TqAVPR6Voy-bS4B0