My Avalon A921 is on the way

[Elphamyto]

I can't figure out what the issue with my unit is. When the miner boots up, the fan revs up and back down as I imagine it should. But then it sits there without mining. The AUC3 stays green but every ~7 minutes briefly flashes red then goes back to green again. The led on the A921 stays blue.

Got it working. The issue was resolved by updating to the latest MM921.mcs

[1714240169]

1714240169

[1714240169]

1714240169

[1714240169]

1714240169

[philipma1957]

Got it working. The issue was resolved by updating to the latest MM921.mcs

Good to read this.

Both my rasp pi and my mcs are up to date. Which is why it worked off the bat for me.

[clgrissom3]

I wonder if it's a chicken and egg thing...which one do you update first?  We were trying to update both...I'll have to try again.

[philipma1957]

I wonder if it's a chicken and egg thing...which one do you update first?  We were trying to update both...I'll have to try again.

I did rasp pi  first.

[clgrissom3]

I did rasp pi  first.

I did also.  I'm also wondering if it was an issue by having the 921s paired up instead of single?  Something else I need to work out.

[NotFuzzyWarm]

You do know that just like the A721/741 and 821/841 use their own software versions the 921 needs to be ran on a Pi using 921 software (OpenWrt) and you cannot mix models on 1 controller? Avalon 921 software here

[notabeliever]

^^ You do know that just like the A721/741 and 821/841 use their own software versions the 921 needs to be ran on a Pi using 921 software (OpenWrt) and you cannot mix models on 1 controller? Avalon 921 software here

yes I know and also the rpi needs ..5 VDC,  2.5 A  'wall wart' power supply...............whats frustrating is minicards work with other devices and minera works with card on same rpi 3 and 3+
whats in canaan for the A921 isn't working for me.
My A721, A841 are all on rpi3's and unsuccessful with making a controller for the A921

...wait your link has a new version

edit- confirmed working now

[NotFuzzyWarm]

Another 'gotcha' can be the USB-A to micro cable feeding the AUC3 - be sure it is a DATA cable and not just a charger cable. Charger cables usually do not support data xfr as all 4 wires in them are used for power.

[HagssFIN]

..and also the rpi needs 2.5v charger......

Rasp Pi needs a 5 V_DC,  2.5 A  'wall wart' power supply.

[mgoz]

I did also.  I'm also wondering if it was an issue by having the 921s paired up instead of single?  Something else I need to work out.

I guess it doesn't matter which is upgraded first since I did the miners first and latest firmware didn't work after upgrading controller. Mine are also chained and on dedicated 921 controller. Firmware did upgrade on miners and controller, just bricked them to where they no longer showed in OpenWrt. Prior to upgrading controller, they still showed in OpenWrt but kept rebooting with older controller firmware and latest miner firmware. Seems to be a firmware issue because I can revert back to previous versions fine. I'm leaving them alone until they hopefully release low power firmware.

[clgrissom3]

^^ You do know that just like the A721/741 and 821/841 use their own software versions the 921 needs to be ran on a Pi using 921 software (OpenWrt) and you cannot mix models on 1 controller? Avalon 921 software here

Thanks Fuzzy, I have 2 A921s on each controller and I'm trying the different versions of the Avalon921 firmware for OpenWrt and MM.  The latest I can get to work on any of these is Avalon921 OpenWrt 20181011 and Avalon921 MM 2018-09-26.  When I try OpenWrt 20190103 and MM 2019-01-03 they just sit there with the "Socket connect failed => Connection refused" error in the API Log.  I can't get anywhere with the 2019 versions.

They work fine with OpenWrt 20181011 and MM 2018-09-26...I'm just trying to get the power use down below 1900W each
which is the best I can get using these firmware versions and the settings that frodocooper and phil recommended.

[philipma1957]

Thanks Fuzzy, I have 2 A921s on each controller and I'm trying the different versions of the Avalon921 firmware for OpenWrt and MM.  The latest I can get to work on any of these is Avalon921 OpenWrt 20181011 and Avalon921 MM 2018-09-26.  When I try OpenWrt 20190103 and MM 2019-01-03 they just sit there with the "Socket connect failed => Connection refused" error in the API Log.  I can't get anywhere with the 2019 versions.

They work fine with OpenWrt 20181011 and MM 2018-09-26...I'm just trying to get the power use down below 1900W each
which is the best I can get using these firmware versions and the settings that frodocooper and phil recommended.

Yeah this is been disappointing so far.  It did get a few runs around 1875 watts  and 19750 hash but not every time.

[NotFuzzyWarm]

Well... just so happens I've been running tests on the miners I have at home...
For completeness this also has settings/results for my A741 TV room heater as well as the A841's I have running downstairs next to one of the 3x 921's I just got... Only thing left to do is plug in the J/THs values

Code:

File date: 1/10/2019
Conditions:
A741 is an upstairs space heater using 120VAC
A841's and 921 are in basement ambient temp 74-76F
A841/921 power source is Tripp*Lite SU6000RT4UHV—6kVA dual-conversion (always on) UPS, all power data comes from it
Voltage output is set to 60Hz and 230VAC +/-0.5%
A841 PSU's are 1.8kw Sorcerers
A921 PSU is Blokforge 2.0kw PSU
%%%%%%%%%% Fun time %%%%%%%%%%%%%

Home A741
Single miner, firmware is MM 9211809-b150820
More Options
--avalon7-voltage-level 8 --avalon7-freq 524 --avalon7-fan 10-40
 GUI speed  5360.83GHs Kano speed 5.25THs power ~750w from 120V source
 Quiet enough for office or TV room
    Temp[39]
    TMax[86]
    Fan[2220]
    FanR[29%]
    Vi[1211 1211 1215 1215]
    Vo[4166 4138 4124 4148]
    GHSmm[5902.34]
    WU[75713.21]
    Freq[524.00
-----------------------------------------------------------
Home Avalon 841's
Power & speed are average of 2 miners running side-by-side on same came controller 
sharing 1 AUC3 with a third 841 fed from different UPS.
All 3 miners using same firmware version MM  8411803-14b0f10 
  More Options
--api-listen --avalon8-voltage-level -1 --avalon8-fan 10-85
 GUI speed 13675.39GHs Kano speed 13.17THs power 1.3kw
    Temp[34]
    TMax[81]
    Fan[5190]
    FanR[85%]
    Vi[1209 1209 1209 1209]
    Vo[3738 3718 3746 3748]
    GHSmm[13700.45]
    WU[188084.25]
    Freq[765.90]
-----------------------------------------------------------
Home A921 Test summary:
Single miner, firmware is MM 9211809-b150820 
 Using full defaults GUI speed  22+THs Kano speed 22+THs power 2.16kw

Using More Options:
--api-listen --avalon9-voltage-level -1
 GUI speed   21116.41GHs  Kano speed 19.84THs, power, 2.0kw

--api-listen --avalon9-voltage-level -2
 GUI speed  19.047THs  Kano speed 18.1THs, power 2.0kw

--api-listen --avalon9-voltage-level -3
 GUI speed   17.78THs  Kano speed 17.97THs, power 1.9kw

With only GUI Voltage Offset -1
 GUI speed  21.5785THs Kano speed 21.34THs, power 2.15kw

with only  GUI Voltage Offset -2
  GUI speed  21.373 THs  Kano speed 21.2THs, power 2.14kw
===========================================================
A921 tweaks and results
  Full default
    Temp[32]
    TMax[95]
    Fan[5970]
    FanR[76%]
    Vi[1232 1232 1236 1236]
    Vo[4205 4210 4176 4182]
    GHSmm[22235.70]
    WU[306008.64]
    Freq[835.18]
-----------------------  
  GUI Voltage Offset -1
    Temp[34]
    TMax[95]
    Fan[6180]
    FanR[79%]
    Vi[1232 1232 1236 1236]
    Vo[4190 4193 4161 4170]
    GHSmm[22167.20]
    WU[296022.20]
    Freq[832.60]
------------------------
   GUI Voltage Offset -2
    Temp[34]
    TMax[95]
    Fan[5970]
    FanR[76%]
    Vi[1232 1232 1237 1237]
    Vo[4176 4184 4151 4156]
    GHSmm[22127.45]
    WU[298652.16]
    Freq[831.11]
------------------------
   More Options  --avalon9-voltage-Level -1
    Temp[34]
    TMax[94]
    Fan[5430]
    FanR[68%]
    Vi[1233 1233 1238 1238]
    Vo[4118 4124 4092 4099]
    GHSmm[21639.85]
    WU[236014.72]
    Freq[812.79]
---------------------------
   More Options  --avalon9-voltage-level -2
    Temp[35]
    TMax[95]
    Fan[5430]
    FanR[68%]
    Vi[1233 1233 1238 1238]
    Vo[4106 4112 4080 4087]
    GHSmm[21612.55]
    WU[266368.11]
    Freq[811.77]
---------------------------
   More Options  --avalon9-voltage-level -3
    HW[6]
    DH[15.893%]
    Temp[33]
    TMax[95]
    Fan[4740]
    FanR[57%]
    Vi[1232 1232 1235 1235]
    Vo[4090 4097 4063 4070]
    GHSmm[21419.85]
    WU[248682.56]
    Freq[804.53]
--------------------------

[notabeliever]

Good news thanks for the info and also can confirm my issues are solved with setup of A921 controller

[minefarmbuy]

How long you have on that UPS on power loss? Love the fan speed on the 741 too.

Feel like I'm on philips boat here, 921 doesn't seem to compete in th/w. They are obviously well built products with a good reputation. 

[NotFuzzyWarm]

How long you have on that UPS on power loss? Love the fan speed on the 741 too...

In all cases power & speed checks were done after at least 6 hours of running to make sure the miners were up to full speed and Kanopool would reflect that. The 921 voltage-level -1 and -2 tests ran for 2 days each. For now at least I'm keeping the 921 at voltage-level -1.

The 741 and 841's data is after them running for months.

[andresrp]

Well i've tried so far both MM and Controller versions 01-03-19, appear to work, but miners randomly shut off and turn back on. Also they're not hashing anywhere near the 20th mark... I've also tried previous versions of the controller firmware no luck, just get connection refused with all of the others versions. Any suggestions? 4 hours so far trying to get the miners to do 20th... or something near that..

[philipma1957]

Well i've tried so far both MM and Controller versions 01-03-19, appear to work, but miners randomly shut off and turn back on. Also they're not hashing anywhere near the 20th mark... I've also tried previous versions of the controller firmware no luck, just get connection refused with all of the others versions. Any suggestions? 4 hours so far trying to get the miners to do 20th... or something near that..

Dont bother.  Just use -1 setting and stop busting your own balls.

These simply are not that good.

I am pretty disappointed with them.

No one has them doing really good numbers.

I moved on. You should set -1 and look into other gear.

[krisgt30]

I landed ten including their power supplies direct from Canaan during their flash sale. They arrived yesterday. Opened five up, removed 2 dragon mints and 3 s9s and replaced them with the 921s and their corresponding psus , no life. Tried 250v power, 220v power and 220v power through a pdu. Controller and auc’s light up, but no one is home on the 921s. Power supplies power on and blow air as they should. Last step will be trying my bitmain, halong, and hp power supplies. Canaan has been more than helpful though via video calls on WeChat and remotely logging in via team viewer. It could be possible these were shipped with no firmware as my controller did not have firmware installed either.

[philipma1957]

sounds like dead auc  flashed poorly etc