@ yankees I left it on -3
it was doing 1122 watts and 11400 gh in a 88f room on an overnight run.
I just set it to cgminer.default
cgminer.default.more_options=--avalon8-voltage-level -4
Topic: My review of Avalon 841 . - page 4. (Read 19331 times)
Phil did you set it to -4?
anyone checked hardware errors on these various voltage settings? Add up the HW[] values in the log output. I suspect they will be rather high on the dramatic voltage changes. Hash rate is raw and will include all the errors
I know if I use a -2 with the normal undervolt method, that I have one miner that will generate 12.9Th, but it's also generating almost 10% errors. If I move that to -1, it will got to 13.1Th and the error rate will drop the 2%
I know if I use a -2 with the normal undervolt method, that I have one miner that will generate 12.9Th, but it's also generating almost 10% errors. If I move that to -1, it will got to 13.1Th and the error rate will drop the 2%
hardly any 25 in 4 hours
tempted to set to -4 just for shits and giggles.
Code:
[Firmware Version] => Avalon Firmware - 20180305
luci: 62d814c
cgminer: b5b497e
cgminer-packages: 960e108
Reply was 'STATUS=S,When=1525208011,Code=70,Msg=CGMiner stats,Description=cgminer 4.10.0|STATS=0,ID=AV80,Elapsed=20589,Calls=0,Wait=0.000000,Max=0.000000,Min=99999999.000000,MM ID1=Ver[8411803-14b0f10]
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CRC[0 0 0 0],MM Count=1,Smart Speed=1,Connecter=AUC,AUC VER=AUC-20151208,AUC I2C Speed=400000,AUC I2C XDelay=19200,AUC Sensor=13451,AUC Temperature=34.81,Connection Overloaded=false,Voltage Level Offset=0,Nonce Mask=24,USB Pipe=0,USB Delay=r0 0.000000 w0 0.000000,USB tmo=0 0|STATS=1,ID=POOL0,Elapsed=20589,Calls=0,Wait=0.000000,Max=0.000000,Min=99999999.000000,Pool Calls=0,Pool Attempts=0,Pool Wait=0.000000,Pool Max=0.000000,Pool Min=99999999.000000,Pool Av=0.000000,Work Had Roll Time=false,Work Can Roll=false,Work Had Expire=false,Work Roll Time=0,Work Diff=262144.00000000,Min Diff=1.00000000,Max Diff=524288.00000000,Min Diff Count=43,Max Diff Count=30188,Times Sent=336,Bytes Sent=42196,Times Recv=1266,Bytes Recv=1022014,Net Bytes Sent=42196,Net Bytes Recv=1022014|STATS=2,ID=POOL1,Elapsed=20589,Calls=0,Wait=0.000000,Max=0.000000,Min=99999999.000000,Pool Calls=0,Pool Attempts=0,Pool Wait=0.000000,Pool Max=0.000000,Pool Min=99999999.000000,Pool Av=0.000000,Work Had Roll Time=false,Work Can Roll=false,Work Had Expire=false,Work Roll Time=0,Work Diff=0.00000000,Min Diff=0.00000000,Max Diff=0.00000000,Min Diff Count=0,Max Diff Count=0,Times Sent=2,Bytes Sent=173,Times Recv=6,Bytes Recv=22652,Net Bytes Sent=173,Net Bytes Recv=22652|STATS=3,ID=POOL2,Elapsed=20589,Calls=0,Wait=0.000000,Max=0.000000,Min=99999999.000000,Pool Calls=0,Pool Attempts=0,Pool Wait=0.000000,Pool Max=0.000000,Pool Min=99999999.000000,Pool Av=0.000000,Work Had Roll Time=false,Work Can Roll=false,Work Had Expire=false,Work Roll Time=0,Work Diff=0.00000000,Min Diff=0.00000000,Max Diff=0.00000000,Min Diff Count=0,Max Diff Count=0,Times Sent=2,Bytes Sent=150,Times Recv=5,Bytes Recv=1450,Net Bytes Sent=150,Net Bytes Recv=1450|'
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[/code] luci: 62d814c
cgminer: b5b497e
cgminer-packages: 960e108
Reply was 'STATUS=S,When=1525208011,Code=70,Msg=CGMiner stats,Description=cgminer 4.10.0|STATS=0,ID=AV80,Elapsed=20589,Calls=0,Wait=0.000000,Max=0.000000,Min=99999999.000000,MM ID1=Ver[8411803-14b0f10]
DNA[01354b2ef7a843ca]
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MW[4709339 4709128 4709200 4709276]
LW[18836943]
MH[4 7 7 7]
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FanR[98%]
Vi[1186 1186 1181 1181]
Vo[3684 3676 3667 3659]
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anyone checked hardware errors on these various voltage settings? Add up the HW[] values in the log output. I suspect they will be rather high on the dramatic voltage changes. Hash rate is raw and will include all the errors
I know if I use a -2 with the normal undervolt method, that I have one miner that will generate 12.9Th, but it's also generating almost 10% errors. If I move that to -1, it will got to 13.1Th and the error rate will drop the 2%
I know if I use a -2 with the normal undervolt method, that I have one miner that will generate 12.9Th, but it's also generating almost 10% errors. If I move that to -1, it will got to 13.1Th and the error rate will drop the 2%
during the tests I conducted above I never saw more than 2 hw errors
anyone checked hardware errors on these various voltage settings? Add up the HW[] values in the log output. I suspect they will be rather high on the dramatic voltage changes. Hash rate is raw and will include all the errors
I know if I use a -2 with the normal undervolt method, that I have one miner that will generate 12.9Th, but it's also generating almost 10% errors. If I move that to -1, it will got to 13.1Th and the error rate will drop the 2%
I know if I use a -2 with the normal undervolt method, that I have one miner that will generate 12.9Th, but it's also generating almost 10% errors. If I move that to -1, it will got to 13.1Th and the error rate will drop the 2%
I would also like to add that I just set --avalon8-voltage-level +3 with the HP 2450 temps were 36/82c 13272.40GHs the wattage draw went up to 1488 
The newest MMC here: https://canaan.io/downloads/software/avalon841/mm/nexttesting/2018-04-21/
Ras Pi firmware here: https://canaan.io/downloads/software/avalon841/openwrt/nexttesting/20180421/
Ras Pi firmware here: https://canaan.io/downloads/software/avalon841/openwrt/nexttesting/20180421/
I know this is obvious what I'm about to say,
but please note that these versions are still in the testing and are not declared as stable releases.
I did know that and I have been using those for a week now with no notable bugs, and during the testing I just did my hardware rate never went above %0.0001
The newest MMC here: https://canaan.io/downloads/software/avalon841/mm/nexttesting/2018-04-21/
Ras Pi firmware here: https://canaan.io/downloads/software/avalon841/openwrt/nexttesting/20180421/
Ras Pi firmware here: https://canaan.io/downloads/software/avalon841/openwrt/nexttesting/20180421/
I know this is obvious what I'm about to say,
but please note that these versions are still in the testing and are not declared as stable releases.
--avalon8-voltage-level -3 = 11223.55GHs 35/67c 1086 watts
--avalon8-voltage-level -2 = 11741.25GHs 35/70c 1177 watts
--avalon8-voltage-level -1 = 12002.42GHs 35/71C 1235 watts
Note that this is using the HP 2450 and a different 841 for the 20 minute test, and it seems to run faster than the other miner on the settings.
Seems to be about the same considering that this miner runs faster and hotter
Now to break the 980 watt barrier? maybe
--avalon8-voltage-level -2 = 11741.25GHs 35/70c 1177 watts
--avalon8-voltage-level -1 = 12002.42GHs 35/71C 1235 watts
Note that this is using the HP 2450 and a different 841 for the 20 minute test, and it seems to run faster than the other miner on the settings.
Seems to be about the same considering that this miner runs faster and hotter
Now to break the 980 watt barrier? maybe
The newest MMC here: https://canaan.io/downloads/software/avalon841/mm/nexttesting/2018-04-21/
Ras Pi firmware here: https://canaan.io/downloads/software/avalon841/openwrt/nexttesting/20180421/
Ras Pi firmware here: https://canaan.io/downloads/software/avalon841/openwrt/nexttesting/20180421/
I am using
MM
8411803-14b0f10
https://github.com/Canaan-Creative/avalon8-docs/wiki/AvalonMiner-841-firmware-downloads
is there any newer?
I cooled the garage down from 100f to 89f and since it is warm here in NJ at 3:37pm outdoor temp is 78f
the garage is 89f my hash on the -3 setting is
11888 gh watts are 1122
1122/11888 = 0.09438
My readings are not as good since garage is still warm, but as I run this and temps cool reading will improve.T
Temperature ©
36/74 36 reflects an 89f garage temp but the 74 is very good.
So this miner will be above spec in a cold spot and below spec in a hot spot.
Since NJ will be 7 cooler months and 5 warmer months It will work very nicely.
MM
8411803-14b0f10
https://github.com/Canaan-Creative/avalon8-docs/wiki/AvalonMiner-841-firmware-downloads
is there any newer?
I cooled the garage down from 100f to 89f and since it is warm here in NJ at 3:37pm outdoor temp is 78f
the garage is 89f my hash on the -3 setting is
11888 gh watts are 1122
1122/11888 = 0.09438
My readings are not as good since garage is still warm, but as I run this and temps cool reading will improve.T
Temperature ©
36/74 36 reflects an 89f garage temp but the 74 is very good.
So this miner will be above spec in a cold spot and below spec in a hot spot.
Since NJ will be 7 cooler months and 5 warmer months It will work very nicely.
have you noticed any difference with the testing firmware? were you on the original or March firmware before?
No difference in performance from the older firmware that I can tell, and note that the latest just had to do with heat management
--avalon8-voltage-level -3 = 11256.88GHs 33/67c 1008 watts hotter room temp and increased draw?
--avalon8-voltage-level -2 = 11436.67GHs 33/67c 1056 watts
--avalon8-voltage-level -1 = 11674.60GHs 33/69C 1105 watts
20 minutes between settings and checking watts using the delta 2400 PSU.
I am going to check the draw next using the HP 2450 PSU , this model
https://www.ebay.com/itm/2450W-Power-Supply-for-bitmain-antminer-T9-S9-L3-S7-200V-240V-PSU-US-SALE/253472915149?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D44039%26meid%3De626ae80772d42b0865fa08074b41a74%26pid%3D100005%26rk%3D6%26rkt%3D6%26sd%3D263280077803%26itm%3D253472915149&_trksid=p2047675.c100005.m1851
Also note that I am using the testing firmware/mmc dated 2018-Apr-21
Hey thanks for the merit Phil!
--avalon8-voltage-level -2 = 11436.67GHs 33/67c 1056 watts
--avalon8-voltage-level -1 = 11674.60GHs 33/69C 1105 watts
20 minutes between settings and checking watts using the delta 2400 PSU.
I am going to check the draw next using the HP 2450 PSU , this model
https://www.ebay.com/itm/2450W-Power-Supply-for-bitmain-antminer-T9-S9-L3-S7-200V-240V-PSU-US-SALE/253472915149?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D44039%26meid%3De626ae80772d42b0865fa08074b41a74%26pid%3D100005%26rk%3D6%26rkt%3D6%26sd%3D263280077803%26itm%3D253472915149&_trksid=p2047675.c100005.m1851
Also note that I am using the testing firmware/mmc dated 2018-Apr-21
Hey thanks for the merit Phil!
have you noticed any difference with the testing firmware? were you on the original or March firmware before?
--avalon8-voltage-level -3 = 11256.88GHs 33/67c 1008 watts hotter room temp and increased draw?
--avalon8-voltage-level -2 = 11436.67GHs 33/67c 1056 watts
--avalon8-voltage-level -1 = 11674.60GHs 33/69C 1105 watts
20 minutes between settings and checking watts using the delta 2400 PSU.
I am going to check the draw next using the HP 2450 PSU , this model
https://www.ebay.com/itm/2450W-Power-Supply-for-bitmain-antminer-T9-S9-L3-S7-200V-240V-PSU-US-SALE/253472915149?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D44039%26meid%3De626ae80772d42b0865fa08074b41a74%26pid%3D100005%26rk%3D6%26rkt%3D6%26sd%3D263280077803%26itm%3D253472915149&_trksid=p2047675.c100005.m1851
Also note that I am using the testing firmware/mmc dated 2018-Apr-21
Hey thanks for the merit Phil!
--avalon8-voltage-level -2 = 11436.67GHs 33/67c 1056 watts
--avalon8-voltage-level -1 = 11674.60GHs 33/69C 1105 watts
20 minutes between settings and checking watts using the delta 2400 PSU.
I am going to check the draw next using the HP 2450 PSU , this model
https://www.ebay.com/itm/2450W-Power-Supply-for-bitmain-antminer-T9-S9-L3-S7-200V-240V-PSU-US-SALE/253472915149?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D44039%26meid%3De626ae80772d42b0865fa08074b41a74%26pid%3D100005%26rk%3D6%26rkt%3D6%26sd%3D263280077803%26itm%3D253472915149&_trksid=p2047675.c100005.m1851
Also note that I am using the testing firmware/mmc dated 2018-Apr-21
Hey thanks for the merit Phil!
Wow. The 'under 1kW' result is quite amazing,
thank you very much sharing your method and results.
thank you very much sharing your method and results.
Small update: still running --avalon8-voltage-level +2 with the Delta 2400 PSU 13367.97GHs 34/78c 1320 watts
Nice
If you can try any of the ones below please do.
--avalon8-voltage-level -1
--avalon8-voltage-level -2
--avalon8-voltage-level -3
--avalon8-voltage-level -2 = 11680.80GHs 33/67c 1071 watts
--avalon8-voltage-level -1 = 11878.42GHs 33/71C 1123 watts
Run approximately 5 minutes between settings
Small update: still running --avalon8-voltage-level +2 with the Delta 2400 PSU 13367.97GHs 34/78c 1320 watts
Nice
If you can try any of the ones below please do.
--avalon8-voltage-level -1
--avalon8-voltage-level -2
--avalon8-voltage-level -3
Small update: still running --avalon8-voltage-level +2 with the Delta 2400 PSU 13367.97GHs 34/78c 1320 watts
I envy you guys in the US for the cool temps. I'm stuck with 30C all year 
Then the T1 May be better. For you.
I am pretty sure I can make the Avalon 841 work for many places in the USA .
But not so sure it works so well for a guy like you other then ac cool it.
over night
https://i.imgur.com/8zGsa2S.png
Temperature©
39 / 81
GHSav
12569.43
Watts
1317
Room Temp
90F
from processes tab:
4946
root
cgminer --lowmem --avalon8-fan 60-100 --avalon8-voltage-level-offset 0 -o stratum+tcp://pool.ckpool.org:333 -O 16yLHLoeyuCLPMXkVpC3gyrRYvwRGwjKJr.100:x -o stratum+tcp://mmpool.org:3333 -O philipma1957.A:1234 -o stratum+tcp://us1.bitminter.com:3333 -O philipma1957_west2:x --api-allow W:127.0.0.1 --api-listen --avalon8-voltage-level -2 --real-quiet
So overnight testing results are good. I am going to raise room temp to 96f if possible today
at 90f which is 4f higher then 86f max listed
I get okay numbers with the under clock.
note 1317 watts means 5268 watts on a 30 amp pdu and 30 amp pdus rate 24 amps x 230 volts = 5520 watts.
so this clocking allows you to run in a 90f room 4 units to a pdu.
I cranked room temps up more to 96f
https://i.imgur.com/lJYqdHh.png
https://i.imgur.com/Rcfixe0.png
Numbers show raising power to 1368 hash was 12592
but frankly running at 96/97 f is running in a very hot space. 10-11f over spec number
and with under clock
13000 hash spec is 12592
1280 watt spec is 1368
5459
root
cgminer --lowmem --avalon8-fan 60-100 --avalon8-voltage-level-offset 0 -o stratum+tcp://pool.ckpool.org:333 -O 16yLHLoeyuCLPMXkVpC3gyrRYvwRGwjKJr.100:x -o stratum+tcp://mmpool.org:3333 -O philipma1957.A:1234 -o stratum+tcp://us1.bitminter.com:3333 -O philipma1957_west2:x --api-allow W:127.0.0.1 --api-listen --avalon8-voltage-level -2 --real-quiet
1%
0%
I can't fault the gear as long as you can do this clock
I am going to keep pushing gear and try to drop more clock in a 97f room
--avalon8-voltage-level -3
this is the new test and should give more protection against heat
--avalon8-voltage-level +2 -------- megaquake's does help some what
--avalon8-voltage-level -1 -------- works better
--avalon8-voltage-level -2 --------- works better
--avalon8-voltage-level -3 ---------- testing in a 97f room works
hash dropped to 11651 now 12004
watts at 1308
Temperature©
42 / 84
room is 97-98f or 36c
my thoughts are this
The gear can run in a hot room if you down clock it
97f 98f is really hot and if you don't down clock this gear it will suck up a lot lot more power and may overheat.
but the lower clocks drop watts a lot.
12004 gh 1308 watts at 97-98 f
--avalon8-voltage-level -3 ---------- testing in a 97f room works
13600 gh 1545 watts at 91f
--avalon8-voltage-level-offset -2 ------- tested results were really bad
I will run for 1 more hour at these 97-98f temps
Temperature©
43 / 84 Note the 43 reflects a really hot room but the 84 © is okay
GHSav
12270.74
Watts
1308
So I think I don't need to check beyond
--avalon8-voltage-level -3
I will do this up to 2 hours at 97f.
I will then drop temps to see what I can lower watt use to.
I will move it to the solar array in a day or 2.
Final youtube done in a 100f room for 2 hours
Your video will be live at: https://youtu.be/xIe4dDiqnkQ
this under clock test allows me to say I would tell people the miner is good to use. if you under clock it in a really hot spot.
12500gh
1326 watts in a 100f room is really good on the under clock
I envy you guys in the US for the cool temps. I'm stuck with 30C all year
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