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Author Topic: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841  (Read 1321 times)
philipma1957
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April 26, 2018, 09:48:34 PM
 #21

Does reflashing the firmware fix the issue?

I visited Cryptouniverse guys Thomas and Stefan in Vienna, Austria
and we did some tutorial videos that support the documentation.

Stefan made this quick video for the reflash process.
How to Reflash your Avalonminer 7xx and 8xx Controller
https://www.youtube.com/watch?v=mCMklnJ5zFo

All videos are available at Cryptouniverse's Youtube channel:
https://www.youtube.com/channel/UCInEqiW0nEVRtynoSRipp4Q

I'm going to do some updates to this guide and also add videos for each chapter.

I ordered a kit from amazon.

Proper way to be sure is know you have working gear.
I will order this  make sure it works then put the card I got today in it.  If it works I will run the avalon 841 on friday.

https://www.amazon.com/gp/product/B0778CZ97B/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

also burned a scared it does not work.  So when I get the rasp pi from amazon on friday I will have 2 sdcards I can test in it.

Now for me doing a deep thread under hard ware a dead rasp pi is not a big issue.  To a miner looking to do 4 chains of 3 miners total of 12 miners and about 12 x 13 = 156th it is costly.

Even a days wait costs 94 dollars   so if you are going to mine  avalon 841's have an extra rasp pi. an extra full kit is 69 dollars at amazon

this is a full kit

https://www.amazon.com/gp/product/B0778CZ97B/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

with its own working software for other rasp pi ops.

this makes it a perfect diagnostic tool for

dead brick
bad card
bad cable
bad rasp pi

So I now have 2 sc cards burned with correct firmware and I think 1 dead rasp pi board

with a full kit on the way.

When kit comes I will boot rasp pi with included software if that works I will try the 2 cards I have now.  the one I burned and the other one that was included.

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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richdmz
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April 30, 2018, 07:01:56 PM
 #22

Hello,

Any idea why a 841 miner or two may drop out out from CGMiner after X amount of hours. This has been randomly happening. After it drops it will continuously drop in and out from cgminer with a primary red LED light and 0 for hash, PG and rpm. Logs show

ECHU[1 1 1 1]
ECMM[197]

However a physical power reboot brings the device back up and running with no errors in log once it is up and running. I have tried reducing the string size per AUC to 4, and only running 3 AUCs per controller for a total of 12 units. I thought that worked as the environment has been stable for its longest period of time but one just dropped on me this morning. Sometimes it is not the same miner and it can be from a different string. I have a case open with Canaan but wanted to check here as well.
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April 30, 2018, 07:47:33 PM
 #23

That information only tells me that all four hash boards have entered to a fault mode.

Miner is in the fault mode.

Sorry but I can't figure out the exact reason with this information.

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May 02, 2018, 04:23:03 AM
 #24

Thanks, another just dropped too. No word from Canaan yet, if anyone has seen this before please let me know. If I physically power cycle it will start mining again, sometimes for days before dropping out of CGMiner.

Code:
MM ID4=Ver[8411803-14b0f10]
    DNA[013cd3418c3342bf]
    Elapsed[21]
    MW[0 0 0 0]
    LW[0]
    MH[0 0 0 0]
    HW[0]
    Temp[27]
    TMax[27]
    Fan[0]
    FanR[100%]
    Vi[1212 1212 1218 1218]
    Vo[29 32 40 39]
    PLL0[0 0 0 0]
    PLL1[0 0 0 0]
    PLL2[0 0 0 0]
    PLL3[0 0 0 0]
    GHSmm[0.00]
    WU[0.00]
    Freq[0.00]
    PG[0]
    Led[0]
    MW0[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
    MW1[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
    MW2[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
    MW3[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
    TA[104]
    ECHU[513 513 513 513]
    ECMM[197]
    FAC0[4]
    OC[0]
    SF0[0 0 0 775]
    SF1[0 0 0 775]
    SF2[0 0 0 775]
    SF3[0 0 0 775]
    PMUV[0000 0000]
    PVT_T0[-273 -273 -273 -273 -273 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40]
    PVT_T1[-273 -273 -273 -273 -273 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40]
    PVT_T2[-40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40]
    PVT_T3[-273 -273 -273 -273 -273 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40]
    PVT_V0_0[0 0 0 0 0 0 0 0]
    PVT_V0_1[0 0 0 0 0 0 0 0]
    PVT_V0_2[0 0 0 0 0 0 0 0]
    PVT_V0_3[0 0 0 0 0 0 0 0]
    PVT_V0_4[0 0 0 0 0 0 0 0]
    PVT_V0_5[0 0 0 0 0 0 0 0]
    PVT_V0_6[0 0 0 0 0 0 0 0]
    PVT_V0_7[0 0 0 0 0 0 0 0]
    PVT_V0_8[0 0 0 0 0 0 0 0]
    PVT_V0_9[0 0 0 0 0 0 0 0]
    PVT_V0_10[0 0 0 0 0 0 0 0]
    PVT_V0_11[0 0 0 0 0 0 0 0]
    PVT_V0_12[0 0 0 0 0 0 0 0]
    PVT_V0_13[0 0 0 0 0 0 0 0]
    PVT_V0_14[0 0 0 0 0 0 0 0]
    PVT_V0_15[0 0 0 0 0 0 0 0]
    PVT_V0_16[0 0 0 0 0 0 0 0]
    PVT_V0_17[0 0 0 0 0 0 0 0]
    PVT_V0_18[0 0 0 0 0 0 0 0]
    PVT_V0_19[0 0 0 0 0 0 0 0]
    PVT_V0_20[0 0 0 0 0 0 0 0]
    PVT_V0_21[0 0 0 0 0 0 0 0]
    PVT_V0_22[0 0 0 0 0 0 0 0]
    PVT_V0_23[0 0 0 0 0 0 0 0]
    PVT_V0_24[0 0 0 0 0 0 0 0]
    PVT_V0_25[0 0 0 0 0 0 0 0]
    PVT_V1_0[0 0 0 0 0 0 0 0]
    PVT_V1_1[0 0 0 0 0 0 0 0]
    PVT_V1_2[0 0 0 0 0 0 0 0]
    PVT_V1_3[0 0 0 0 0 0 0 0]
    PVT_V1_4[0 0 0 0 0 0 0 0]
    PVT_V1_5[0 0 0 0 0 0 0 0]
    PVT_V1_6[0 0 0 0 0 0 0 0]
    PVT_V1_7[0 0 0 0 0 0 0 0]
    PVT_V1_8[0 0 0 0 0 0 0 0]
    PVT_V1_9[0 0 0 0 0 0 0 0]
    PVT_V1_10[0 0 0 0 0 0 0 0]
    PVT_V1_11[0 0 0 0 0 0 0 0]
    PVT_V1_12[0 0 0 0 0 0 0 0]
    PVT_V1_13[0 0 0 0 0 0 0 0]
    PVT_V1_14[0 0 0 0 0 0 0 0]
    PVT_V1_15[0 0 0 0 0 0 0 0]
    PVT_V1_16[0 0 0 0 0 0 0 0]
    PVT_V1_17[0 0 0 0 0 0 0 0]
    PVT_V1_18[0 0 0 0 0 0 0 0]
    PVT_V1_19[0 0 0 0 0 0 0 0]
    PVT_V1_20[0 0 0 0 0 0 0 0]
    PVT_V1_21[0 0 0 0 0 0 0 0]
    PVT_V1_22[0 0 0 0 0 0 0 0]
    PVT_V1_23[0 0 0 0 0 0 0 0]
    PVT_V1_24[0 0 0 0 0 0 0 0]
    PVT_V1_25[0 0 0 0 0 0 0 0]
    PVT_V2_0[0 0 0 0 0 0 0 0]
    PVT_V2_1[0 0 0 0 0 0 0 0]
    PVT_V2_2[0 0 0 0 0 0 0 0]
    PVT_V2_3[0 0 0 0 0 0 0 0]
    PVT_V2_4[0 0 0 0 0 0 0 0]
    PVT_V2_5[0 0 0 0 0 0 0 0]
    PVT_V2_6[0 0 0 0 0 0 0 0]
    PVT_V2_7[0 0 0 0 0 0 0 0]
    PVT_V2_8[0 0 0 0 0 0 0 0]
    PVT_V2_9[0 0 0 0 0 0 0 0]
    PVT_V2_10[0 0 0 0 0 0 0 0]
    PVT_V2_11[0 0 0 0 0 0 0 0]
    PVT_V2_12[0 0 0 0 0 0 0 0]
    PVT_V2_13[0 0 0 0 0 0 0 0]
    PVT_V2_14[0 0 0 0 0 0 0 0]
    PVT_V2_15[0 0 0 0 0 0 0 0]
    PVT_V2_16[0 0 0 0 0 0 0 0]
    PVT_V2_17[0 0 0 0 0 0 0 0]
    PVT_V2_18[0 0 0 0 0 0 0 0]
    PVT_V2_19[0 0 0 0 0 0 0 0]
    PVT_V2_20[0 0 0 0 0 0 0 0]
    PVT_V2_21[0 0 0 0 0 0 0 0]
    PVT_V2_22[0 0 0 0 0 0 0 0]
    PVT_V2_23[0 0 0 0 0 0 0 0]
    PVT_V2_24[0 0 0 0 0 0 0 0]
    PVT_V2_25[0 0 0 0 0 0 0 0]
    PVT_V3_0[0 0 0 0 0 0 0 0]
    PVT_V3_1[0 0 0 0 0 0 0 0]
    PVT_V3_2[0 0 0 0 0 0 0 0]
    PVT_V3_3[0 0 0 0 0 0 0 0]
    PVT_V3_4[0 0 0 0 0 0 0 0]
    PVT_V3_5[0 0 0 0 0 0 0 0]
    PVT_V3_6[0 0 0 0 0 0 0 0]
    PVT_V3_7[0 0 0 0 0 0 0 0]
    PVT_V3_8[0 0 0 0 0 0 0 0]
    PVT_V3_9[0 0 0 0 0 0 0 0]
    PVT_V3_10[0 0 0 0 0 0 0 0]
    PVT_V3_11[0 0 0 0 0 0 0 0]
    PVT_V3_12[0 0 0 0 0 0 0 0]
    PVT_V3_13[0 0 0 0 0 0 0 0]
    PVT_V3_14[0 0 0 0 0 0 0 0]
    PVT_V3_15[0 0 0 0 0 0 0 0]
    PVT_V3_16[0 0 0 0 0 0 0 0]
    PVT_V3_17[0 0 0 0 0 0 0 0]
    PVT_V3_18[0 0 0 0 0 0 0 0]
    PVT_V3_19[0 0 0 0 0 0 0 0]
    PVT_V3_20[0 0 0 0 0 0 0 0]
    PVT_V3_21[0 0 0 0 0 0 0 0]
    PVT_V3_22[0 0 0 0 0 0 0 0]
    PVT_V3_23[0 0 0 0 0 0 0 0]
    PVT_V3_24[0 0 0 0 0 0 0 0]
    PVT_V3_25[0 0 0 0 0 0 0 0]
    FM[1]
    CRC[0 0 0 0],MM Count=4,Smart Speed=1,Connecter=AUC,AUC VER=AUC-20151208,AUC I2C Speed=400000,AUC I2C XDelay=19200,AUC Sensor=15225,AUC Temperature=28.99,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=3,ID=POOL0,Elapsed=200,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=80702.00000000,Min Diff=4098.00000000,Max Diff=80702.00000000,Min Diff Count=969,Max Diff Count=6109,Times Sent=214,Bytes Sent=27819,Times Recv=226,Bytes Recv=18122,Net Bytes Sent=27819,Net Bytes Recv=18122|STATS=4,ID=POOL1,Elapsed=200,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=145,Times Recv=5,Bytes Recv=1529,Net Bytes Sent=145,Net Bytes Recv=1529|STATS=5,ID=POOL2,Elapsed=200,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=145,Times Recv=4,Bytes Recv=1588,Net Bytes Sent=145,Net Bytes Recv=1588|'
[STATUS] =>
(
   [STATUS] => S
   [When] => 1525234353
   [Code] => 70
   [Msg] => CGMiner stats
   [Description] => cgminer 4.10.0
)
[STATS0] =>
(
   [STATS] => 0
   [ID] => AV80
   [Elapsed] => 200
   [Calls] => 0
   [Wait] => 0.000000
   [Max] => 0.000000
   [Min] => 99999999.000000
[/code]
HagssFIN
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May 02, 2018, 08:16:36 AM
 #25

Check out your Vo values.

It seems that you could have issues with the PMU boards.

richdmz
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May 02, 2018, 05:36:48 PM
 #26

Check out your Vo values.

It seems that you could have issues with the PMU boards.

I appreciate the help, the interesting thing is after a power cycle things look ok until it fails again which is typically withing 1-3 days.

Code:
MM ID4=Ver[8411803-14b0f10]
    DNA[013cd3418c3342bf]
    Elapsed[8350]
    MW[2576998 2581645 2582514 2573709]
    LW[10314866]
    MH[5 8 6 2]
    HW[21]
    Temp[22]
    TMax[72]
    Fan[5700]
    FanR[100%]
    Vi[1202 1202 1207 1207]
    Vo[3790 3794 3793 3799]
    PLL0[1 0 6 4465]
    PLL1[23 5 68 4376]
    PLL2[2 3 64 4403]
    PLL3[2 1 83 4386]
    GHSmm[13663.25]
    WU[189015.10]
    Freq[763.82]
    PG[15]
    Led[0]
    MW0[574 523 518 494 523 512 491 544 507 501 501 518 561 504 525 535 461 523 513 516 531 497 456 543 499 531]
    MW1[530 514 507 506 537 535 536 509 471 508 517 493 487 492 488 3 484 497 538 508 536 492 520 527 512 539]
    MW2[523 518 529 477 521 506 504 500 525 469 501 536 560 511 486 472 507 509 497 528 511 510 485 507 505 535]
    MW3[529 504 514 440 505 492 496 467 538 469 494 515 504 519 530 493 551 498 510 543 497 539 472 523 507 539]
    TA[104]
    ECHU[0 0 0 0]
    ECMM[0]
    FAC0[4]
    OC[0]
    SF0[0 0 0 775]
    SF1[0 0 0 775]
    SF2[0 0 0 775]
    SF3[0 0 0 775]
    PMUV[0000 0000]
    PVT_T0[57 58 61 62 63 63 65 64 65 67 66 65 64 62 63 62 64 64 64 65 64 64 63 64 62 59]
    PVT_T1[59 60 60 61 61 62 64 64 65 66 67 66 66 67 67 72 65 65 63 63 63 64 63 62 61 59]
    PVT_T2[55 57 58 59 59 61 61 63 62 63 65 64 64 63 63 66 63 62 62 61 60 60 60 58 56 55]
    PVT_T3[53 56 56 60 60 59 59 61 61 62 62 60 60 60 62 61 61 61 61 60 60 60 60 56 56 54]
    PVT_V0_0[752 752 377 377 1 898 903 744]
    PVT_V0_1[755 755 360 360 1 893 705 746]
    PVT_V0_2[757 757 362 362 1 899 705 747]
    PVT_V0_3[755 755 371 371 1 899 711 746]
    PVT_V0_4[756 756 375 375 1 902 709 747]
    PVT_V0_5[755 755 347 347 1 897 705 746]
    PVT_V0_6[753 753 366 366 1 902 715 746]
    PVT_V0_7[753 753 360 360 1 902 709 744]
    PVT_V0_8[752 752 355 355 1 897 714 743]
    PVT_V0_9[757 757 352 352 1 904 711 748]
    PVT_V0_10[758 758 353 353 1 903 718 750]
    PVT_V0_11[756 756 349 349 1 900 719 747]
    PVT_V0_12[757 757 354 354 1 898 716 747]
    PVT_V0_13[753 753 360 360 1 902 708 744]
    PVT_V0_14[758 758 358 359 1 903 712 749]
    PVT_V0_15[755 755 350 350 1 901 714 746]
    PVT_V0_16[754 754 360 360 1 901 718 745]
    PVT_V0_17[758 758 355 355 1 906 713 749]
    PVT_V0_18[757 757 348 349 0 903 718 748]
    PVT_V0_19[752 752 368 368 1 900 722 743]
    PVT_V0_20[754 754 359 359 1 896 708 744]
    PVT_V0_21[756 756 371 372 1 903 710 746]
    PVT_V0_22[753 753 368 368 0 905 709 744]
    PVT_V0_23[753 753 379 379 1 896 712 745]
    PVT_V0_24[756 756 375 375 1 894 702 748]
    PVT_V0_25[756 756 360 360 1 907 702 747]
    PVT_V1_0[754 754 371 371 1 899 899 747]
    PVT_V1_1[750 750 375 375 1 897 710 742]
    PVT_V1_2[756 756 364 364 1 906 705 745]
    PVT_V1_3[755 755 355 355 1 902 716 747]
    PVT_V1_4[751 751 353 353 1 899 715 743]
    PVT_V1_5[759 759 352 352 0 898 715 751]
    PVT_V1_6[755 755 361 362 1 901 716 746]
    PVT_V1_7[753 753 348 348 1 903 713 743]
    PVT_V1_8[754 754 346 346 1 904 720 745]
    PVT_V1_9[752 752 347 347 1 903 722 743]
    PVT_V1_10[754 754 362 362 1 897 717 747]
    PVT_V1_11[753 753 358 358 1 896 705 744]
    PVT_V1_12[753 753 355 358 1 901 707 745]
    PVT_V1_13[754 754 355 356 1 897 708 747]
    PVT_V1_14[755 755 357 357 1 908 711 748]
    PVT_V1_15[753 753 459 459 1 897 720 745]
    PVT_V1_16[754 754 346 345 1 901 660 744]
    PVT_V1_17[752 752 364 364 1 896 718 744]
    PVT_V1_18[753 753 348 348 1 897 707 743]
    PVT_V1_19[755 756 351 351 1 910 715 746]
    PVT_V1_20[753 753 358 358 1 901 727 743]
    PVT_V1_21[751 751 359 358 1 905 715 742]
    PVT_V1_22[754 755 364 365 1 905 718 746]
    PVT_V1_23[755 755 360 359 1 906 717 745]
    PVT_V1_24[752 752 362 362 1 897 720 743]
    PVT_V1_25[752 752 370 370 1 897 710 743]
    PVT_V2_0[755 755 370 370 0 904 905 746]
    PVT_V2_1[754 754 378 379 1 899 709 745]
    PVT_V2_2[753 753 346 346 1 899 706 744]
    PVT_V2_3[754 754 359 359 1 898 719 745]
    PVT_V2_4[760 760 363 362 1 903 715 751]
    PVT_V2_5[753 753 366 366 1 898 714 743]
    PVT_V2_6[756 756 356 355 1 907 706 744]
    PVT_V2_7[752 752 362 364 1 901 722 742]
    PVT_V2_8[752 752 350 348 1 899 710 742]
    PVT_V2_9[759 760 363 363 1 902 715 750]
    PVT_V2_10[752 752 357 358 1 902 712 744]
    PVT_V2_11[755 755 364 364 1 900 714 749]
    PVT_V2_12[755 755 351 351 1 904 708 746]
    PVT_V2_13[751 751 352 352 1 901 718 742]
    PVT_V2_14[754 754 353 353 1 905 717 743]
    PVT_V2_15[755 755 368 368 1 898 719 744]
    PVT_V2_16[759 759 356 356 1 902 705 750]
    PVT_V2_17[756 756 349 349 1 904 712 747]
    PVT_V2_18[755 755 382 380 1 902 721 746]
    PVT_V2_19[753 753 369 370 1 896 701 744]
    PVT_V2_20[753 753 358 358 1 903 705 745]
    PVT_V2_21[752 752 359 359 1 899 719 743]
    PVT_V2_22[754 754 358 358 1 897 711 745]
    PVT_V2_23[752 752 374 374 1 902 713 744]
    PVT_V2_24[755 755 357 357 1 905 712 746]
    PVT_V2_25[754 754 355 355 1 898 719 746]
    PVT_V3_0[755 755 362 362 1 900 899 746]
    PVT_V3_1[755 755 363 363 1 899 713 747]
    PVT_V3_2[754 754 355 355 1 896 713 745]
    PVT_V3_3[759 759 373 374 1 902 711 750]
    PVT_V3_4[754 754 370 370 1 897 708 744]
    PVT_V3_5[756 756 361 361 1 899 706 746]
    PVT_V3_6[754 754 350 350 1 903 712 743]
    PVT_V3_7[757 757 354 354 1 902 720 747]
    PVT_V3_8[757 757 349 349 0 899 718 749]
    PVT_V3_9[753 753 358 359 1 898 717 743]
    PVT_V3_10[754 754 360 361 1 902 708 743]
    PVT_V3_11[753 753 347 350 1 901 711 744]
    PVT_V3_12[753 753 373 374 1 895 716 746]
    PVT_V3_13[754 754 373 374 1 894 695 746]
    PVT_V3_14[751 751 365 365 1 903 701 741]
    PVT_V3_15[751 751 345 344 1 899 711 743]
    PVT_V3_16[750 750 363 362 1 901 717 741]
    PVT_V3_17[757 757 347 347 1 905 713 748]
    PVT_V3_18[755 755 365 365 1 899 721 747]
    PVT_V3_19[749 749 352 353 1 899 711 741]
    PVT_V3_20[759 759 364 366 1 897 716 749]
    PVT_V3_21[759 759 365 365 1 899 709 749]
    PVT_V3_22[755 755 377 377 1 902 708 747]
    PVT_V3_23[753 753 354 355 1 902 710 743]
    PVT_V3_24[749 749 367 367 1 898 717 740]
    PVT_V3_25[753 753 363 363 1 900 709 743]
    FM[1]
    CRC[0 0 0 0],MM Count=4,Smart Speed=1,Connecter=AUC,AUC VER=AUC-20151208,AUC I2C Speed=400000,AUC I2C XDelay=19200,AUC Sensor=15612,AUC Temperature=27.76,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=3,ID=POOL0,Elapsed=47405,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=149069.00000000,Min Diff=4098.00000000,Max Diff=149069.00000000,Min Diff Count=2218,Max Diff Count=563359,Times Sent=14536,Bytes Sent=1922081,Times Recv=16130,Bytes Recv=2539101,Net Bytes Sent=1922081,Net Bytes Recv=2539101|STATS=4,ID=POOL1,Elapsed=47405,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=145,Times Recv=5,Bytes Recv=1328,Net Bytes Sent=145,Net Bytes Recv=1328|STATS=5,ID=POOL2,Elapsed=47405,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=145,Times Recv=5,Bytes Recv=2514,Net Bytes Sent=145,Net Bytes Recv=2514|'
[STATUS] =>
(
   [STATUS] => S
   [When] => 1525282549
   [Code] => 70
   [Msg] => CGMiner stats
   [Description] => cgminer 4.10.0
)
[STATS0] =>
(
   [STATS] => 0
   [ID] => AV80
   [Elapsed] => 47404
   [Calls] => 0
   [Wait] => 0.000000
   [Max] => 0.000000
   [Min] => 99999999.000000
[/code]
HagssFIN
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May 02, 2018, 05:41:20 PM
 #27

Yeah, that piece of code shows that both PMU boards are perfectly ok.

Hmmm, weird and interesting..

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May 03, 2018, 04:13:56 AM
 #28

So is it the last miner on the chain?

If so I would suspect cables.

But if it is one of the miners in the middle of the chain I would need to think about it.

What is the power brick 5 volts 2.5 amps

Or 5.1 volts 2.5 amps.


The official rasp pi brick used in the cana kit is 5.1 volts and 2.5 amps

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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May 04, 2018, 04:11:03 AM
 #29

So is it the last miner on the chain?

If so I would suspect cables.

But if it is one of the miners in the middle of the chain I would need to think about it.

What is the power brick 5 volts 2.5 amps

Or 5.1 volts 2.5 amps.


The official rasp pi brick used in the cana kit is 5.1 volts and 2.5 amps

one is middle of chain, i have another one acting similarly which is first in chain. I was able to watch one fail first hand, not sure if it is root problem or a symptom but the fan RPM went to 0, it continued hashing ( i am surprised it would still do this), exhaust temps continued to rise, PG start going down (I assume it was pulling power to reduce hash to in turn reduce heat), than the unit fails, after that it will start popping in and out of CGMiner until a physical power reboot. Weird thing is the fan runs fine after the reboot, makes me think maybe there is an issue with the module. I am surprised the unit doesn't instantly stop when the fan goes to 0. Still waiting on resolution from Canaan support.

edit - just to add, they say there is less than 1% failure rate with these units, I have been having issues with 3 so I must be extremely unlucky. My other ones have been running great however.

Under the listing it shows,"+5.1V 2.5A output" I haven't confirmed it my self
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May 04, 2018, 07:10:47 AM
 #30

PG value describes the power supply condition.

Which psus are you using? Sorcerer psus? Do you have better luck with other psu?

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May 04, 2018, 11:22:55 AM
 #31

PG value describes the power supply condition.

Which psus are you using? Sorcerer psus? Do you have better luck with other psu?

I am using Sorcerer PSUS, switching units does not have a change. The PG started going down when exhaust temps went really high, I saw over 155 on the exhaust before it stopped hashing. I am running March firmware too which is suppose to have the updated thermal protection.     
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May 04, 2018, 08:47:16 PM
 #32

Hello Matti,
I want to ask you something.
One of my Avalon 741 fan was dead so I changed it with a new one.I put it into work and it works fine and cools the miner but at cg miner status is says only the percentage but the RMP is 0.
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May 05, 2018, 05:34:56 AM
 #33

Maybe  there is something wrong with your new fan's tachometer.

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May 05, 2018, 12:49:07 PM
 #34

Maybe  there is something wrong with your new fan's tachometer.
Fixed.
I changed it again with a new one everything is okay.thank you for your answer!
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May 08, 2018, 02:42:18 AM
 #35

I have now made few updates in the guide.  Smiley

May 5, 2018 version is now available, please see the opening post.

And changelog is available here: https://bitcointalk.org/index.php?topic=3224256.msg33539636#msg33539636

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May 08, 2018, 02:50:05 AM
 #36

@ Mgoz in reply to his issue (miner shutting down) which is very OT in https://bitcointalk.org/index.php?topic=3605989.msg36635997#msg36635997 AFAIK the fan should NEVER hit zero speed. Even at idle min should be 10% or around 560rpm.

The fact it reports 100% speed (command) and 0 rpm (feedback) makes my guess as either a flaky fan or the control board has an intermittent fault in the fan speed control area. Make sure both the fan connectors are seated and no wire is loose. If like the 721's there is a connector on the control board with wires running to a 2nd connector in the fan shroud area.

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
How a miner mfgr SHOULD operate: HaggsFIN trip to Canaan My info useful? Donations welcome! 1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
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May 14, 2018, 01:02:50 AM
 #37

I have updated the guide once again.

The changelog is available here:
https://bitcointalk.org/index.php?topic=3224256.msg33539636#msg33539636

Quote
Release v1.4 May 14, 2018
- A huge update for the 'How to read the abbreviations and values found in the CGMiner API Log' chapter.
- The table of contents and the subchapters are now improved.

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May 14, 2018, 05:14:36 PM
 #38

Still dealing with an unstable 841 and no resolution from Canaan support for 4 weeks. Any suggestions on what the issue may be? Differences I have noticed:

1) Voltage input on trouble unit is 11.7-11.9V, regardless of PSU. All other units are at 12V+
2) Fan speed on trouble unit seems out of spec. It reports running at 5820RPM/82%, while others show 5790RPM/100%. Somehow it's reporting faster RPM with lower fan control value.

I suspect fan may be shutting off and then causing it to overheat, but have not been able to catch it during a crash. Last two times it has crashed, there are no LEDs lit on PMU or MM boards. Just looks to be entirely off and removes itself from cgminer, so there's nothing in log either. Cycle PSU and it will run fine until crashing again, which is typically 1-3 days.
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May 14, 2018, 05:22:06 PM
 #39

Does installing a new fan have any effect on the issue?

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May 14, 2018, 06:53:30 PM
 #40

I haven't opened it up because I don't want to do anything that may void warranty. Only spare fans I have are from Avalon 6 units and rated lower RPM. Suppose I could try swapping between 841 units if Canaan approves. I really don't think it's the fan. Maybe a bad MM or PMU board. Have only had the left PMU board LEDs go red once and the other side continued to hash. Haven't been able to reproduce.
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