Bitcoin Forum

Bitcoin => Mining support => Topic started by: HagssFIN on March 30, 2018, 04:53:15 PM



Title: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on March 30, 2018, 04:53:15 PM
Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
https://i.imgur.com/sRV3cld.jpg (https://i.imgur.com/sRV3cld.jpg)
Ongoing repair process for an AvalonMiner 821 unit. Click for a higher resolution image.

1) General information, most common tools needed (#post_chapter1)
2) Troubleshooting (#post_chapter2)
3) Tear down (#post_chapter3)
4) Conclusion (#post_chapter4)


Last updated in: May 14, 2018.

Nicely formatted version (May 14, 2018) is available for download here (Mega.nz cloud service):
https://mega.nz/#!o10yxaIC!yAODmwOLd8Fwqp3Wi-7fz54w05sdTzjOlPWtnubRIn8 (https://mega.nz/#!o10yxaIC!yAODmwOLd8Fwqp3Wi-7fz54w05sdTzjOlPWtnubRIn8)

1) General information, most common tools needed
(top) (#post_contents)
This is an official troubleshooting and repair guide for AvalonMiner 7 and AvalonMiner 8 series.
All rights to fix or improve this document are reserved to Canaan Creative.

In this guide you will see how to disassemble and separate all miner components and it will help
you to understand how to replace a faulty miner component like for example a broken cooling fan or faulty PCB board.

You will also learn how to do the fault diagnosis to your miner in a case of
a miner malfunction and how to find out which miner component is most likely not working correctly.

This guide is made using an AvalonMiner 841 unit, but same principles apply
with other compatible models mentioned in this guide as well.

Most common tools needed:
  • Phillips headed screwdriver (it is good to have both PH1 and PH2 size screwdrivers / tips)
  • Digital multimeter
  • Static electricity protection (ESD mat or antistatic wrist strap for example)
  • If you don’t have anything for static electricity protection, please at least ground yourself by touching a grounded object to discharge the static electricity before touching a PCB board
  • Good quality thermal paste
  • Pure isopropyl alcohol for cleaning the old thermal paste
  • Soft cloth or soft paper for cleaning the old thermal paste

https://i.imgur.com/N5JpmF0.png (https://i.imgur.com/N5JpmF0.png)
Phillips head screwdriver. Click for a higher resolution image.

https://i.imgur.com/t8Q3heD.png (https://i.imgur.com/t8Q3heD.png)
Digital multimeter.

https://i.imgur.com/Y694ust.png (https://i.imgur.com/Y694ust.png)
ESD mat and antistatic wrist strap.

https://i.imgur.com/KOmhS0h.png (https://i.imgur.com/KOmhS0h.png)
Thermal paste.

https://i.imgur.com/ZP5y1d7.png (https://i.imgur.com/ZP5y1d7.png)
Isopropyl alcohol.

These instructions apply for following AvalonMiner 7 and 8 series models:
  • AvalonMiner 721
  • AvalonMiner 741
  • AvalonMiner 761 (with a built-in power supply unit)
  • AvalonMiner 821
  • AvalonMiner 841

https://i.imgur.com/L4Y3EdH.png
AvalonMiner 721 technical specifications.

https://i.imgur.com/R5brKMq.png
AvalonMiner 741 technical specifications.

https://i.imgur.com/sd5Lqsm.png
AvalonMiner 761 technical specifications.

https://i.imgur.com/Cka7rh1.png
AvalonMiner 821 technical specifications.

https://i.imgur.com/GHoavBb.png
AvalonMiner 841 technical specifications.


2) Troubleshooting
(top) (#post_contents)
In this chapter you will see the common methods for the troubleshooting process and you will also see example cases about the most common issues.

The goal is to help understand how to determine which miner component is causing the miner operation malfunction.

How to indicate your miner’s physical location
You can use the indicator LED to help you locate the miner.
Just simply press the indicator LED switch button to change the state from ’LED OFF’ to ’LED ON’.
You can find the indicator LED switch button location by following these steps:
  • 1. Go the controller web configuration page by using your web browser and login.
  • 2. Click ’Advanced Version’ to access the advanced user features in the OpenWrt firmware.
  • 3. Click ’CGMiner Status’ to see status for all the devices connected to the controller.
  • 4. Choose the AvalonMiner unit which you would like to locate and click ’LED OFF’ button located in the Indicator field.
    Now you should see that status change into ’LED ON’.
    Further observations about this situation are shown in two figures below.

https://i.imgur.com/DQ0lVJ6.png (https://i.imgur.com/DQ0lVJ6.png)
Normal miner operation before pressing the indicator LED button - the indicator LED color is blue. Click for a higher resolution image.

https://i.imgur.com/Z8stIQg.png (https://i.imgur.com/Z8stIQg.png)
After pressing the indicator LED button the miner in question changes the indicator LED color to white.

Video: How to Identify your Avalonminer for Troubleshooting
https://www.youtube.com/watch?v=vNMW0QtX5Bk  (https://www.youtube.com/watch?v=vNMW0QtX5Bk)



How to locate and open the CGMiner API Log
These following instructions will tell you how to locate and open the CGMiner API Log.

By reading the log text you are able to see lots of technical information related to the miner performance.

Step 1.
Use your web browser and access to the controller web configuration page.
https://i.imgur.com/aoba2Gv.png
Web configuration page, login screen.

Step 2.
Click ’Advanced Version’ to access all user features.
https://i.imgur.com/WVbKGHm.png
Dashboard view.

Step 3.
You are now able to see all the features available.
Now you need to click ’CGMiner API Log’ to access the log text.
https://i.imgur.com/Ms1HN0R.png
System overview.

Step 4.
Click ’Debug Switch’ and after that you are ready to read and examine the CGMiner API Log.
https://i.imgur.com/vCrAdgT.png
CGMiner API Log.


Information about indicator LED colors and CGMiner API Log error codes
During the troubleshooting it is best to find and use all the information available, so that the repair is a quick and straight forward process.

The miner is able to report about specific issue with different LED colors and error codes.
In these following tables you can see a description for each LED color and error code.

Please remember to click 'Debug Switch' button before reading and examining the CGMiner API Log.

Video: Avalonminer 741 and 841 - LED Color Guide

https://www.youtube.com/watch?v=P59HPZnIk7s (https://www.youtube.com/watch?v=P59HPZnIk7s)

Table 1. AvalonMiner LED colors.
https://i.imgur.com/HRZqxVU.png

Table 2. PMU board LED colors.
https://i.imgur.com/nVNDzTZ.png

Table 3. AUC3 Converter LED colors.
https://i.imgur.com/FBoxZLX.png


One of the most frequent errors is the socket connect error.
Socket connect failed => Connection refused

This error can happen because of numerous different things, but here is a list showing few of them.
•  Miner is still in the startup process
•  Incorrect pool settings
•  Wrong OpenWrt firmware version
•  Communication error.

Table 4. CGMiner API Log error codes.
https://i.imgur.com/MGMlCqP.png


How to read the abbreviations and values found in the CGMiner API Log

In this following table you can see the CGMiner API Log thoroughly explained, row by row.
This provides you a lot of help in the troubleshooting process, as you are able to determine possible issues based on the values seen in the CGMiner API Log. The information is divided into three parts, part 1-3.

Table 5. List of codes found in the CGMiner API Log. Part 1.
https://i.imgur.com/fLk6Rop.png

Table 6. List of codes found in the CGMiner API Log. Part 2.
https://i.imgur.com/chRD8GK.png

Table 7. List of codes found in the CGMiner API Log. Part 3.
https://i.imgur.com/YHPC9XT.png

How to check the power supply unit health
If you want to know if the power supply is passing any voltage to the PMU board,
you can measure the +12V rail output voltage to find out.

According to the ATX specification, the measured voltage should be from 11.4 to 12.6 VDC.
Please also take into account the rated input voltage for your AvalonMiner.

The most safe area for the input voltage is 12.0 to 12.5 VDC.

Video: How to check your AvalonMiner power supply
https://www.youtube.com/watch?v=1Ty3D5vuj_I (https://www.youtube.com/watch?v=1Ty3D5vuj_I)

For measuring the voltage you need a multimeter.
You can easily measure the voltage by applying one multimeter test lead to the +12V (yellow) and one multimeter test lead to the COM (black).

https://i.imgur.com/882P0Fq.png (https://i.imgur.com/882P0Fq.png)
6-pin PCI-E power connector pinout. Click for a higher resolution image.

First you need to select the right measuring mode by using the selection knob in the middle of the multimeter.
Make sure that your test leads are connected correctly to the multimeter for voltage measurement setup.

https://i.imgur.com/u6JHHyw.jpg (https://i.imgur.com/u6JHHyw.jpg)
Selecting the right measuring mode for the 12 VDC voltage measurement. Click for a higher resolution image.

You can use any safe methods, tools or tape you need to hold the power connector still
so that it is easy for you to hold the test leads in position.

https://i.imgur.com/SizfbeK.jpg (https://i.imgur.com/SizfbeK.jpg)
Measuring the voltage. Click for a higher resolution image.


Cooling fan
If your miner won’t start operating, one of the first things to check if the cooling fan is working.
You can check it by doing both visual inspection and looking at the miner status page.

If you find a miner with fan reading at 0 rpm or close to it, then it is quite clear that you need to replace that miner’s cooling fan.

Please also see if there are any indicator LED colors or log error codes related to a cooling fan issue.

https://i.imgur.com/lLK4KtM.png (https://i.imgur.com/lLK4KtM.png)
Fan speed 0 rpm at the miner status page.

https://i.imgur.com/XO0SWe3.png (https://i.imgur.com/XO0SWe3.png)
Fan speed 0 rpm at the CGMiner API Log page.

If the cooling fan failure occurs during the warranty period, you can request a replacement cooling fan from Canaan Creative.

If your miner is out of warranty, here is a list of few compatible replacement cooling fan models:
  • Cooler Master A12038-60BB-4RP-F1
  • Delta Electronics QFR1212GHE
  • Delta Electronics QFR1212GHEXUM
  • Nidec V12E12BS1B5-07
  • Sanyo Denki 9GV1212P1J01
  • Shengjiu SG121238BS
  • Sunon PSD1212PMBXA-F-PWM

AvalonMiner Controller / Raspberry Pi
If you are not able to access the controller unit at all and you have double-checked that your setup is ok,
then it is possible that your controller unit is faulty and needs to be replaced with a new one.

Please also make sure that the 5 VDC wall wart is in ok condition and that
it is able to provide at least 5 VDC 2.5 A power for the controller unit.

Here is the list of compatible controller units:
  • AvalonMiner Controller (RPi 3 based device)
  • Raspberry Pi 1 Model B
  • Raspberry Pi 2 Model B
  • Raspberry Pi 3 Model B



AUC3 Converter

If you are able to access the controller unit successfully, but you don’t see any miner devices connected, it is possible that there is a faulty AUC3 converter or a faulty control board (MM board).

You can look at the LED colors and log error codes and try to figure out the issue that way.

You can try a spare AUC3 converter if you have another one.

You can easily troubleshoot if it is the AUC3 which is faulty, if you have a ten miners or more in your setup.

This means that you have at least two AUC3 converters in your setup. You can swap those two AUC3 converters and try to see if the issue moves to the another group of miners. If it does, you should be able to know which one is the faulty AUC3 converter.

Control board (MM board)
If you are able to access the controller unit successfully, but you don’t see a miner device connected, it is possible that there is a faulty AUC3 converter or a faulty control board (MM board).

Another example of possible control board malfunction is that if there is a huge number hash boards down suddenly.

One good hint is that you have for example five miners connected to one AUC3 converter, and you are only able to connect four of them, it indicates that there might be issues with one miner control board.

You can look at the LED colors and log error codes and try to figure out the issue that way.

You can try using a spare control board (MM board) for the miner in question if you have another one.

PMU board
PMU board stands for Power Management Unit board.

If you have one or more hash boards down and without power, it is a good idea to figure out how is the PMU board condition.
You can do this by looking at the CGMiner API Log.

If you any values zero or values having an odd number, it is possible that you have a faulty PMU board.
When you look at the log, please pay attention to Vi and Vo values (voltage in and voltage out).

One PMU board has two power terminals, so there is a total number of four values visible in the log.
There are four digits presenting the measured input voltage and output voltage. For example value 1199 means 11.99 VDC.

https://i.imgur.com/Cz5aAj7.png
Both PMU boards are working normally.

https://i.imgur.com/jhAsG4J.png
The second PMU board is not working at all.

In this next image you can see how to identify which PMU board is the first one and which is the second.

https://i.imgur.com/x5SZlVH.png
PMU board identification.

Hash board
To find out if you have a hash board issue, you can look at two things in the CGMiner API log.
  • Works (MW0 – MW3)
  • Chip temperatures (PVT_T0 – PVT_T3).

If there is one board with no works, then it is clearly a faulty one.
Your miner might also have issues with constant rebooting because one of the ASIC chips overheats.

In this case you can first try to clean the old thermal paste and then apply new thermal paste.
If new thermal paste does no good, you need a new hash board.

https://i.imgur.com/6ISkCoF.png
Number of works shown in the log. This miner is working normally.

https://i.imgur.com/eVH966W.png
Every single ASIC chip temperature shown in the log.

In this next image you can see how to identify which ID number is for which hash board.

https://i.imgur.com/lq7qXUY.png
Hash board identification.


3) Tear down
(top) (#post_contents)
You only need one tool for the tear down process and it is a screwdriver.
Make sure you have a good quality Phillips head screwdriver and right sized,
to avoid damaging the small bolts.

Please also be careful not to use too much force which can potentially damage your
screwdriver, bolt or the thread.

Please pay attention using the right type of a bolt when assembling it all back together.

These instructions show you how to separate each miner component,
so that you are able to replace a faulty part in question with a new spare part.

Video: Avalonminer 741 Disassembly Guide
https://www.youtube.com/watch?v=1W_BO1PimlA  (https://www.youtube.com/watch?v=1W_BO1PimlA)

Step 1.
Remove the steel tube case.
There are four small bolts in both sides of the miner, so a total number of eight bolts.
https://i.imgur.com/NT3bY3N.png (https://i.imgur.com/NT3bY3N.png)
Removing the steel tube case. Click for a higher resolution image.

https://i.imgur.com/NDNPgmR.png (https://i.imgur.com/NDNPgmR.png)
Steel tube case removal completed.

Step 2.
Remove the cooling fan. There are four screws holding the cooling fan shroud against the frame.
https://i.imgur.com/9jC5WFD.png (https://i.imgur.com/9jC5WFD.png)
Removing the cooling fan shroud.


Unplug the 4-pin fan cable connector and remove the cooling fan.
https://i.imgur.com/Fbz28WT.png (https://i.imgur.com/Fbz28WT.png)
Unplugging the 4-pin fan cable connector.

https://i.imgur.com/u4gMtgn.png (https://i.imgur.com/u4gMtgn.png)
Removing the cooling fan.

Video: Avalonminer 741 and 841 Fan Replacement Tutorial
https://www.youtube.com/watch?v=-ltqGavbzd0  (https://www.youtube.com/watch?v=-ltqGavbzd0)


Step 3.
Unplug the 4-pin fan extension cable from the control board.
https://i.imgur.com/UXKfImC.png (https://i.imgur.com/UXKfImC.png)
Unplugging the 4-pin fan extension cable from the control board.

Step 4.
Remove the control board (MM board).
There are two small bolts to be removed, after which you can gently detach the control board which is connected to both two PMU boards (Power Management Unit).
https://i.imgur.com/FGr3D2f.png (https://i.imgur.com/FGr3D2f.png)
Removing the control board.

https://i.imgur.com/gCexesQ.png (https://i.imgur.com/gCexesQ.png)
Removing the control board.

Step 5.
Remove the hexagon pattern steel grill.
There are four small bolts holding it against the frame.
https://i.imgur.com/2Zv46jI.png (https://i.imgur.com/2Zv46jI.png)
Removing the hexagon pattern steel grill.

Step 6.
Remove both two frame parts.
There are six small bolts holding one frame parts against the heat sinks, so a total number of twelve bolts.
https://i.imgur.com/bahNQjI.png (https://i.imgur.com/bahNQjI.png)
Removing the frame parts.

Step 7.
Remove both two power management unit boards (PMU board).
There are six bolts per PMU board and four of them
https://i.imgur.com/kkGb1Sw.png (https://i.imgur.com/kkGb1Sw.png)
Removing the PMU board.

Step 8.
Remove the hash board.
There are three small bolts and six big bolts holding one hash board against the heat sinks.
https://i.imgur.com/R2sYwLc.jpg (https://i.imgur.com/R2sYwLc.jpg)
Two hash boards with one shared large heat sink and two invidual heat sinks.

Remove the old thermal paste if needed, if it is hardened or damaged in any different way. You should do this by using pure isopropyl alcohol and a soft cloth or paper. You can also use a cotton swab if needed.
https://i.imgur.com/SiTM5mc.png (https://i.imgur.com/SiTM5mc.png)
Removing the old thermal paste.

After the surfaces are cleaned, you can apply new thermal paste. Do not use your finger or anything else that causes impurities to mix with the thermal paste when applying the new thermal paste.
https://i.imgur.com/gJfpidN.png (https://i.imgur.com/gJfpidN.png)
Applying new thermal paste.

Now we have gone through how to tear down the miner,
how to separate all the miner components
and how to replace each invidual miner component.

Assembling it all back together is essentially doing this same process backwards.



4) Conclusion
(top) (#post_contents)
These instructions should be able to help you with most of the issues that might occur,
even though AvalonMiner failure rate in field is close to 1%, which is a low number compared to the competitors.

But please remember that if you need help with an miner issue, you can always also do these two things:
  • Submit a support ticket at Canaan Creative website
  • Join the discussion thread at Bitcointalk.org forum to get comments and instructions on your issue.

Any questions, suggestions or comments are welcome to be posted in this Bitcointalk.org forum thread.

Canaan Creative: http://www.canaan.io (http://www.canaan.io)

https://i.imgur.com/0vJK0Tb.png (https://i.imgur.com/0vJK0Tb.png)
Canaan Creative support ticket form at www.canaan.io . Click to show a higher resolution image.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on March 30, 2018, 04:58:29 PM
Changelog:

Code:
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.

Release v1.3 May 8, 2018
- Added more information in the Hash board troubleshooting.
- Added more information in the PMU board troubleshooting.
- Tear down tutorial video added.
- Cooling fan replacement tutorial video added.
- LED Color tutorial video added.
- Added a bit of information about the 'Socket connect failed => Connection refused' error.
- Added the safest input voltage area in the How to check the psu health -chapter.
- PSU health check tutorial video added.
- Added more LED color information.
- Added new chapter 'How to read the abbreviations and values found in the CGMiner API Log'.
- CGMiner API Log guide tutorial video added.
- Added tutorial video How to Identify your Avalonminer for Troubleshooting.
- All the mess in the previous version Tear down -chapter is now fixed.

Release v1.2 April 10, 2018
- Added more information about 'How to indicate your miner’s physical location'.
- Added new instructions 'How to locate and open the CGMiner API Log'.
- Added more information about 'How to check the power supply unit health'.

Release v1.1 April 2, 2018
- Changed the chapter order to 1. General information, most common tools needed;
  2. Troubleshooting; 3. Tear down; 4. Conclusion.

Release v1.0 March 31, 2018
- First version of the 'Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841' is now released.

(Reserved for questions, answers, other material..)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: yxt on March 31, 2018, 01:38:05 PM
good job :)

maybe you want to change
2) Tear down
3) Troubleshooting

make no sense to tear it down complete if you only have a broken fan ;)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on March 31, 2018, 11:16:30 PM
@yxt
I think it should be quite obvious that you don't have to tear it down completely if you only need to change a fan.  :D

But your suggestion is good,

I will change the order to -> 2. Troubleshooting - 3. Tear down.
EDIT: ^ This has now been done and the guide is updated (April 2, 2018).

Any other ideas?  :)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: NotFuzzyWarm on April 04, 2018, 03:00:13 AM
Might want to add that when the AUC3 is not seen at all under Avalon Devices to be sure the USB-A to micro-USB cable between the RasPi and AUC is a data cable and not a charger/power cable. They are wired differently and many power/charger cables do not support data transfer.

After mentioning that point to someone in a different thread (and yes was the answer) whatcha think happened when I just hooked up one of my new 841's?
Yep. http://www.sherv.net/cm/emoticons/hand-gestures/forehead-slap-smiley-emoticon.gif (http://www.sherv.net/)
After waiting a good 5 min and still no AUC reported, I found another USB cable I was certain is for data and voila'! AUC3 found and miner now happily hashing away at Kano.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: BadgerHobbs on April 05, 2018, 11:25:22 PM
Great job, very detailed.

Have you found it to improve significantly in thermal performance if you replaced the thermal compound with a high quality brand?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: bit2255 on April 07, 2018, 07:38:38 PM
Sorry, I guess I posted my issues in the incorrect post (your review guide in the hardware section) and it got deleted by the admin - sorry.

But - here is that post (with additional below):

**************************************************************************************************************************
I recently received (2) Avalon 841's and cannot get either of them to run.

I initially tried them downstream of an already hashing 821 - no luck. If I put the 841 1st, then the 821 - neither worked.

I then tried the 841 with their own controller with 841 pre-installed software (for Avalon 821/841) - no luck on either 841 with different power supplies.

I changed AUC3's, data cables.

Nothing I do works.

When I say it does not work or no luck, here is what happens - initially powers up and fan runs at full speed (light light blue/white) for about 20 seconds, the the fans (almost) stops and the light is now green - it never turns blue - never spins back up /hashes.

On other item, both the Kano worker page and the Avalon CGminer status the 841 as connected to the pool OK, but not hashing.

So I have 2- 841's just waiting to start hashing - Can someone HELP me??? !!!
************************************************************************************************************************

Update - I have tried everything:  changing AUC3 data cable, AUC converter, PSU, controllers, internet port connection and even tried all of that on the 2nd 841 (I have just been trying to get one unit to run).

When I rewrote the Raspberry Pi3 Firmware onto a newly reformatted card (again), there was one difference - this time the 841 cycles on and off every minute or so. Now it cycles on (with green light) for a minute now (longer than before), the cycles off (still green) and repeats this on/off routine continuously (always green).  ???




Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on April 08, 2018, 03:00:47 PM
Did you try another Micro USB Cable?

Are you sure youe cable is able to transmit data and it is not for charging only?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: bit2255 on April 08, 2018, 05:01:01 PM
Yes, I did.

Assuming the 821 firmware will also run the 841, I also swapped out a hashing 821 with the new 841(s). Using everything the same, I just removed the data cable from the 821 and plugged it into the 841 - no good - the 841 never got past the green light.

I can't believe both of these new 841s are bad....

?????


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: bit2255 on April 08, 2018, 11:21:07 PM
I've tried every possible combination of data cable / AUC converter / PSU (all supplied by 220v) / controllers / internet connections...... - every swap out was done with working items from an already operating A-821. Every swap out resulted in the A-821 restarting successfully. So no faulty hardware/equip there.

I have used several SD cards updated to the latest 841 firmware in several Raspberry Pi 3 Model B. (openwrt-brcm2708-bcm2710-rpi-3-ext4-sdcard.img).

The best I get is a constantly cycling A-841. The same results individually on both of my new A-841s.

I believe my issue is related to the following (copied from the CGMiner API log) (as if I really know anything):

******************************************
[Firmware Version] => Avalon Firmware - 20180305
    luci: 62d814c
    cgminer: b5b497e
    cgminer-packages: 960e108
Socket connect failed => Connection refused
******************************************

It has to be something on my end - hopefully someone can help me with this (internet connection / controller firmware?????)

Thanks in advance



Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on April 09, 2018, 12:07:03 AM
Please make sure that you have a working firmware install and that it is the A841 firmware version.

https://bitcointalk.org/index.php?topic=3191702#post_chapter4

You can also open a support ticket at www.canaan.io


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: bit2255 on April 09, 2018, 10:13:58 AM
It's hashing!

All I did this morning was to change the network to DCHP from static.

I guess I missed this because my other Avalons (5-741s and 821) must have been already defaulted to DCHP as I never had to change this before  :P

I feel like a fool - oh well, at least it's working!

 >>>> One other quick question - if I run another 841 on a 110v line, will the reduced voltage hurt the machine at all besides reducing the TH/s?

THANKS for putting up with me - much appreciated.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on April 09, 2018, 10:40:05 AM
Yeah, always make sure that your network settings are compatible with your infrastructure (routers, etc.).


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: bit2255 on April 09, 2018, 10:44:59 AM
How about running another A-841 on  a 110v circuit - any issues doing that?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on April 09, 2018, 11:04:42 AM
Running your A841 using the 110V mains voltage will not hurt it,
but you got to be absolutely sure that your power supply unit is able to provide enough power when connected to the 110V mains voltage.

I absolutely prefer using 220V or greater mains voltage.

But if you must use 110V mains voltage you could use these psus for example,
- 1x EVGA SuperNOVA 1600 G2, 80+ GOLD 1600W
https://www.evga.com/products/product.aspx?pn=120-G2-1600-X1

or

- 2x Hewlett-Packard HSTNS-PL18 server power supply with breakout board and cables
https://www.parallelminer.com/product/1500-watt-2-x-750w-100v-240v-hp-80-gold-power-supply-kit-for-gpu-mining-16awg-pcie-cables-6-pin-to-8-pin-62-zec-dash-eth/


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on April 09, 2018, 10:18:07 PM
I have made few updates and the newest version of this guide (April 10, 2018) is now available.  :)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: StevenMosher on April 10, 2018, 04:55:52 AM
It's hashing!

All I did this morning was to change the network to DCHP from static.

I guess I missed this because my other Avalons (5-741s and 821) must have been already defaulted to DCHP as I never had to change this before  :P

I feel like a fool - oh well, at least it's working!

 >>>> One other quick question - if I run another 841 on a 110v line, will the reduced voltage hurt the machine at all besides reducing the TH/s?

THANKS for putting up with me - much appreciated.

Congrats  !


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on April 15, 2018, 06:58:30 PM
Here is a great video showing how to replace a faulty cooling fan.

Avalonminer 741 and 841 Fan Replacement Tutorial
https://www.youtube.com/watch?v=-ltqGavbzd0

All thanks goes to Cryptouniverse guys (http://www.cryptouniverse.at).


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: philipma1957 on April 26, 2018, 08:26:52 PM
https://bitcointalk.org/index.php?topic=3375954.msg35573797#msg35573797 above is link to my review of the avalon 841.

Okay  here is a start on Rasp pi issues.

Why is this my unit came today and the rasp pi is not detected.
I am 99% sure rasp pi does not boot.
I am sure cable is good.
I am sure power brick is good.
I am not sure rasp pi is defective
I am not sure  mini card is defective

Below is what the mini card in the rasp pi looks like.

So if you have a working avalon sd card  does  it look like this one?

https://i.imgur.com/Td1mirj.png (https://i.imgur.com/Td1mirj.png)



Moderator's note: This post was edited by frodocooper to reduce the size of the embedded image.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on April 26, 2018, 08:58:52 PM
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 (https://www.youtube.com/channel/UCInEqiW0nEVRtynoSRipp4Q)

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


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: philipma1957 on April 26, 2018, 09:48:34 PM
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 (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.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: richdmz on April 30, 2018, 07:01:56 PM
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.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on April 30, 2018, 07:47:33 PM
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.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: richdmz on May 02, 2018, 04:23:03 AM
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]


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on May 02, 2018, 08:16:36 AM
Check out your Vo values.

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


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: richdmz on May 02, 2018, 05:36:48 PM
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]


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on May 02, 2018, 05:41:20 PM
Yeah, that piece of code shows that both PMU boards are perfectly ok.

Hmmm, weird and interesting..


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: philipma1957 on May 03, 2018, 04:13:56 AM
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


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: richdmz on May 04, 2018, 04:11:03 AM
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


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on May 04, 2018, 07:10:47 AM
PG value describes the power supply condition.

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


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: richdmz on May 04, 2018, 11:22:55 AM
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.     


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: endi17 on May 04, 2018, 08:47:16 PM
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.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on May 05, 2018, 05:34:56 AM
Maybe  there is something wrong with your new fan's tachometer.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: endi17 on May 05, 2018, 12:49:07 PM
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!


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on May 08, 2018, 02:42:18 AM
I have now made few updates in the guide.  :)

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


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: NotFuzzyWarm on May 08, 2018, 02:50:05 AM
@ 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.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on May 14, 2018, 01:02:50 AM
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.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: mgoz on May 14, 2018, 05:14:36 PM
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.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on May 14, 2018, 05:22:06 PM
Does installing a new fan have any effect on the issue?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: mgoz on May 14, 2018, 06:53:30 PM
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.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on May 14, 2018, 06:54:57 PM
@mgoz
If you have the skills, you can swap the boards from a good unit to help with the troubleshooting. Presuming of course that this is first approved by Canaan.

And then when you have figured out which board or other component is faulty, you can request Canaan sending you a new spare part.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: mgoz on May 15, 2018, 01:27:45 AM
Just caught it right after a crash. It was completely off and noticeably warmer than other units. Let it sit for 15 minutes and cycled PSU. This is what I'm seeing with chip temps and voltages a few minutes after cycling and starting to hash. Don't know if it means anything. Looks like a startup sequence:

Code:
    PVT_T0[-40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 42 42 40 42 41 39]
    PVT_T1[39 43 42 43 43 44 45 45 46 47 51 46 49 51 50 51 53 53 54 54 54 55 54 54 54 53]
    PVT_T2[56 56 56 56 57 57 59 58 59 59 61 61 60 59 62 62 62 63 64 62 63 62 63 62 61 61]
    PVT_T3[60 60 63 63 63 65 64 64 65 66 63 65 82 82 85 84 86 86 89 89 89 90 90 89 89 88]

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[754 753 0 0 0 0 0 0]
    PVT_V0_21[757 757 398 0 0 0 0 0]
    PVT_V0_22[753 753 293 293 1 0 0 0]
    PVT_V0_23[751 751 407 409 1 903 747 0]
    PVT_V0_24[753 753 373 374 1 895 700 743]
    PVT_V0_25[759 759 330 330 1 903 707 748]
    PVT_V1_0[750 750 327 327 1 894 908 739]
    PVT_V1_1[752 753 440 447 1 897 731 743]
    PVT_V1_2[754 754 306 306 1 902 671 744]
    PVT_V1_3[755 754 408 418 1 899 746 743]
    PVT_V1_4[750 750 326 326 1 898 679 742]
    PVT_V1_5[754 754 363 371 1 894 734 744]
    PVT_V1_6[755 755 413 415 1 900 711 745]
    PVT_V1_7[756 756 307 305 1 900 679 746]
    PVT_V1_8[747 747 312 313 1 898 743 739]
    PVT_V1_9[754 754 324 326 1 900 735 745]
    PVT_V1_10[750 750 442 441 1 902 731 741]
    PVT_V1_11[752 752 371 379 1 901 653 742]
    PVT_V1_12[756 756 359 356 1 898 712 746]
    PVT_V1_13[747 747 409 406 1 898 713 737]
    PVT_V1_14[755 755 355 363 1 889 695 746]
    PVT_V1_15[758 758 359 363 1 903 719 748]
    PVT_V1_16[748 748 364 367 1 903 714 741]
    PVT_V1_17[753 753 371 359 1 896 717 744]
    PVT_V1_18[750 751 367 368 1 892 711 742]
    PVT_V1_19[748 748 374 376 1 898 703 741]
    PVT_V1_20[753 753 354 354 1 897 703 743]
    PVT_V1_21[751 751 359 360 1 897 716 742]
    PVT_V1_22[751 751 362 362 1 893 709 743]
    PVT_V1_23[750 750 353 354 1 897 705 742]
    PVT_V1_24[752 752 353 353 1 900 717 744]
    PVT_V1_25[749 749 360 360 1 898 718 740]
    PVT_V2_0[749 750 368 366 1 907 888 741]
    PVT_V2_1[755 755 362 362 1 902 718 746]
    PVT_V2_2[751 751 365 366 1 904 717 742]
    PVT_V2_3[757 756 352 353 1 902 713 747]
    PVT_V2_4[759 759 351 351 1 906 721 750]
    PVT_V2_5[748 748 355 355 1 898 721 741]
    PVT_V2_6[749 749 362 362 1 899 713 741]
    PVT_V2_7[753 753 358 358 1 903 711 745]
    PVT_V2_8[754 754 350 350 1 902 716 746]
    PVT_V2_9[753 753 362 362 1 895 718 745]
    PVT_V2_10[755 755 363 363 1 901 705 748]
    PVT_V2_11[749 749 357 357 1 908 711 740]
    PVT_V2_12[752 752 358 358 1 899 722 745]
    PVT_V2_13[753 753 359 359 0 901 707 744]
    PVT_V2_14[755 755 355 355 1 904 713 747]
    PVT_V2_15[757 757 352 352 1 899 717 748]
    PVT_V2_16[750 751 363 363 1 896 714 741]
    PVT_V2_17[751 751 360 360 1 904 705 744]
    PVT_V2_18[754 754 359 359 1 898 715 746]
    PVT_V2_19[757 757 359 359 1 894 712 750]
    PVT_V2_20[754 754 364 365 1 897 706 745]
    PVT_V2_21[748 747 358 359 1 891 708 739]
    PVT_V2_22[752 751 365 365 1 899 706 743]
    PVT_V2_23[751 751 363 363 1 892 708 743]
    PVT_V2_24[753 753 367 367 1 901 705 745]
    PVT_V2_25[751 751 376 377 1 896 709 743]
    PVT_V3_0[754 754 362 363 1 905 895 746]
    PVT_V3_1[755 755 361 361 1 897 717 748]
    PVT_V3_2[750 750 363 363 1 898 709 743]
    PVT_V3_3[751 751 358 358 1 899 712 742]
    PVT_V3_4[753 753 359 359 1 900 714 743]
    PVT_V3_5[751 751 371 371 1 897 712 743]
    PVT_V3_6[753 753 359 359 1 895 704 745]
    PVT_V3_7[750 750 358 358 1 895 707 743]
    PVT_V3_8[752 752 349 349 1 898 707 744]
    PVT_V3_9[751 751 356 356 1 901 716 742]
    PVT_V3_10[752 753 352 352 1 899 713 745]
    PVT_V3_11[758 758 356 356 1 902 715 751]
    PVT_V3_12[752 752 361 362 1 900 715 745]
    PVT_V3_13[751 751 350 350 1 895 702 744]
    PVT_V3_14[759 759 391 391 1 903 712 750]
    PVT_V3_15[756 756 335 336 1 900 696 747]
    PVT_V3_16[753 753 345 345 1 900 720 745]
    PVT_V3_17[752 752 343 344 1 897 717 744]
    PVT_V3_18[753 753 368 368 1 895 714 746]
    PVT_V3_19[754 754 357 357 1 899 704 746]
    PVT_V3_20[753 753 355 353 1 903 711 746]
    PVT_V3_21[752 752 346 343 1 898 717 743]
    PVT_V3_22[752 752 355 353 1 901 718 744]
    PVT_V3_23[749 749 356 357 1 897 717 741]
    PVT_V3_24[753 753 367 365 1 898 708 745]
    PVT_V3_25[752 752 361 361 1 900 708 744]


Refreshing 5 seconds later:

Code:
    PVT_T0[62 63 65 66 67 68 68 70 71 70 69 68 68 -40 -40 -40 -40 -40 -40 -40 42 42 40 42 41 39]
    PVT_T1[39 43 42 43 43 44 45 45 46 47 51 46 49 51 50 51 53 53 54 54 54 55 54 54 54 53]
    PVT_T2[56 56 56 56 57 57 59 58 59 59 61 61 60 59 62 62 62 63 64 62 63 62 63 62 61 61]
    PVT_T3[60 60 63 63 63 65 64 64 65 66 63 65 64 64 66 65 66 66 68 67 66 65 65 64 63 61]

    PVT_V0_0[756 756 359 359 1 898 892 747]
    PVT_V0_1[757 757 367 367 1 901 713 748]
    PVT_V0_2[753 753 367 367 1 897 710 744]
    PVT_V0_3[752 752 356 356 1 898 709 743]
    PVT_V0_4[756 756 353 353 1 898 713 748]
    PVT_V0_5[752 752 355 355 1 902 714 745]
    PVT_V0_6[753 753 348 347 1 901 718 745]
    PVT_V0_7[754 754 363 363 1 898 718 746]
    PVT_V0_8[753 752 361 361 1 901 707 743]
    PVT_V0_9[756 757 355 355 1 902 713 747]
    PVT_V0_10[755 755 350 350 1 902 714 746]
    PVT_V0_11[752 752 337 339 1 895 717 744]
    PVT_V0_12[753 753 362 362 1 902 717 746]
    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[754 753 0 0 0 0 0 0]
    PVT_V0_21[757 757 398 0 0 0 0 0]
    PVT_V0_22[753 753 293 293 1 0 0 0]
    PVT_V0_23[751 751 407 409 1 903 747 0]
    PVT_V0_24[753 753 373 374 1 895 700 743]
    PVT_V0_25[759 759 330 330 1 903 707 748]
    PVT_V1_0[750 750 327 327 1 894 908 739]
    PVT_V1_1[752 753 440 447 1 897 731 743]
    PVT_V1_2[754 754 306 306 1 902 671 744]
    PVT_V1_3[755 754 408 418 1 899 746 743]
    PVT_V1_4[750 750 326 326 1 898 679 742]
    PVT_V1_5[754 754 363 371 1 894 734 744]
    PVT_V1_6[755 755 413 415 1 900 711 745]
    PVT_V1_7[756 756 307 305 1 900 679 746]
    PVT_V1_8[747 747 312 313 1 898 743 739]
    PVT_V1_9[754 754 324 326 1 900 735 745]
    PVT_V1_10[750 750 442 441 1 902 731 741]
    PVT_V1_11[752 752 371 379 1 901 653 742]
    PVT_V1_12[756 756 359 356 1 898 712 746]
    PVT_V1_13[747 747 409 406 1 898 713 737]
    PVT_V1_14[755 755 355 363 1 889 695 746]
    PVT_V1_15[758 758 359 363 1 903 719 748]
    PVT_V1_16[748 748 364 367 1 903 714 741]
    PVT_V1_17[753 753 371 359 1 896 717 744]
    PVT_V1_18[750 751 367 368 1 892 711 742]
    PVT_V1_19[748 748 374 376 1 898 703 741]
    PVT_V1_20[753 753 354 354 1 897 703 743]
    PVT_V1_21[751 751 359 360 1 897 716 742]
    PVT_V1_22[751 751 362 362 1 893 709 743]
    PVT_V1_23[750 750 353 354 1 897 705 742]
    PVT_V1_24[752 752 353 353 1 900 717 744]
    PVT_V1_25[749 749 360 360 1 898 718 740]
    PVT_V2_0[749 750 368 366 1 907 888 741]
    PVT_V2_1[755 755 362 362 1 902 718 746]
    PVT_V2_2[751 751 365 366 1 904 717 742]
    PVT_V2_3[757 756 352 353 1 902 713 747]
    PVT_V2_4[759 759 351 351 1 906 721 750]
    PVT_V2_5[748 748 355 355 1 898 721 741]
    PVT_V2_6[749 749 362 362 1 899 713 741]
    PVT_V2_7[753 753 358 358 1 903 711 745]
    PVT_V2_8[754 754 350 350 1 902 716 746]
    PVT_V2_9[753 753 362 362 1 895 718 745]
    PVT_V2_10[755 755 363 363 1 901 705 748]
    PVT_V2_11[749 749 357 357 1 908 711 740]
    PVT_V2_12[752 752 358 358 1 899 722 745]
    PVT_V2_13[753 753 359 359 0 901 707 744]
    PVT_V2_14[755 755 355 355 1 904 713 747]
    PVT_V2_15[757 757 352 352 1 899 717 748]
    PVT_V2_16[750 751 363 363 1 896 714 741]
    PVT_V2_17[751 751 360 360 1 904 705 744]
    PVT_V2_18[754 754 359 359 1 898 715 746]
    PVT_V2_19[757 757 359 359 1 894 712 750]
    PVT_V2_20[754 754 364 365 1 897 706 745]
    PVT_V2_21[748 747 358 359 1 891 708 739]
    PVT_V2_22[752 751 365 365 1 899 706 743]
    PVT_V2_23[751 751 363 363 1 892 708 743]
    PVT_V2_24[753 753 367 367 1 901 705 745]
    PVT_V2_25[751 751 376 377 1 896 709 743]
    PVT_V3_0[754 754 362 363 1 905 895 746]
    PVT_V3_1[755 755 361 361 1 897 717 748]
    PVT_V3_2[750 750 363 363 1 898 709 743]
    PVT_V3_3[751 751 358 358 1 899 712 742]
    PVT_V3_4[753 753 359 359 1 900 714 743]
    PVT_V3_5[751 751 371 371 1 897 712 743]
    PVT_V3_6[753 753 359 359 1 895 704 745]
    PVT_V3_7[750 750 358 358 1 895 707 743]
    PVT_V3_8[752 752 349 349 1 898 707 744]
    PVT_V3_9[751 751 356 356 1 901 716 742]
    PVT_V3_10[752 753 352 352 1 899 713 745]
    PVT_V3_11[758 758 356 356 1 902 715 751]
    PVT_V3_12[753 753 364 364 1 900 714 745]
    PVT_V3_13[751 751 357 357 1 895 703 744]
    PVT_V3_14[759 759 393 394 1 904 710 750]
    PVT_V3_15[756 756 346 346 1 900 697 747]
    PVT_V3_16[754 754 353 353 1 900 717 745]
    PVT_V3_17[752 752 353 353 1 897 715 744]
    PVT_V3_18[754 754 370 370 1 896 711 746]
    PVT_V3_19[754 754 362 361 1 899 703 746]
    PVT_V3_20[753 753 358 359 1 904 710 746]
    PVT_V3_21[752 752 349 350 1 898 717 743]
    PVT_V3_22[752 752 359 359 1 901 717 744]
    PVT_V3_23[749 748 361 361 1 897 716 740]
    PVT_V3_24[754 754 364 364 1 899 710 745]
    PVT_V3_25[753 753 364 364 1 900 711 743]


Refreshing again:

Code:
    PVT_T0[69 70 72 73 75 76 75 78 78 78 77 76 76 78 78 75 76 76 77 77 77 75 72 72 70 70]
    PVT_T1[70 71 72 74 75 75 76 77 77 77 78 77 77 80 81 79 79 77 78 76 75 74 72 71 69 67]
    PVT_T2[71 71 71 72 73 73 76 76 76 77 79 79 78 77 79 78 78 78 78 76 76 75 75 73 71 71]
    PVT_T3[70 70 73 73 73 75 75 76 76 77 74 77 76 76 78 75 77 76 78 76 74 73 73 71 70 68]

   PVT_V0_0[756 756 359 359 1 898 890 747]
    PVT_V0_1[757 757 371 370 1 900 713 748]
    PVT_V0_2[753 753 368 368 1 897 708 744]
    PVT_V0_3[752 752 356 356 1 898 707 743]
    PVT_V0_4[756 756 353 353 1 898 712 748]
    PVT_V0_5[752 752 354 354 1 902 713 745]
    PVT_V0_6[753 753 345 345 1 900 718 745]
    PVT_V0_7[754 754 361 361 1 898 719 746]
    PVT_V0_8[753 753 359 359 1 901 707 743]
    PVT_V0_9[756 756 353 353 1 902 713 747]
    PVT_V0_10[755 755 346 346 1 902 715 746]
    PVT_V0_11[752 752 333 335 1 895 718 744]
    PVT_V0_12[753 753 359 359 1 902 720 746]
    PVT_V0_13[749 749 361 361 1 902 706 742]
    PVT_V0_14[752 752 350 350 1 898 712 743]
    PVT_V0_15[755 754 330 330 1 903 712 746]
    PVT_V0_16[755 755 350 350 1 903 729 746]
    PVT_V0_17[752 752 351 351 1 902 716 744]
    PVT_V0_18[749 749 368 368 1 900 716 742]
    PVT_V0_19[751 752 360 360 1 899 709 744]
    PVT_V0_20[753 753 365 365 0 900 709 745]
    PVT_V0_21[756 756 369 369 1 905 709 746]
    PVT_V0_22[753 752 371 371 1 896 712 744]
    PVT_V0_23[750 750 363 363 1 903 702 743]
    PVT_V0_24[753 753 348 348 1 895 715 745]
    PVT_V0_25[758 758 370 371 1 903 714 750]
    PVT_V1_0[750 750 406 404 1 894 894 742]
    PVT_V1_1[752 752 357 357 1 897 686 745]
    PVT_V1_2[754 754 362 362 1 902 712 746]
    PVT_V1_3[754 754 357 357 1 898 712 745]
    PVT_V1_4[750 750 353 353 1 898 712 744]
    PVT_V1_5[753 753 362 362 1 893 713 746]
    PVT_V1_6[754 754 349 349 1 900 705 747]
    PVT_V1_7[756 756 345 345 1 900 715 748]
    PVT_V1_8[747 747 363 365 1 898 718 740]
    PVT_V1_9[753 753 340 337 1 900 706 746]
    PVT_V1_10[750 750 351 351 1 902 722 742]
    PVT_V1_11[751 751 347 354 1 900 717 743]
    PVT_V1_12[755 755 341 340 1 898 712 747]
    PVT_V1_13[746 746 360 360 1 898 714 739]
    PVT_V1_14[754 754 344 343 1 889 706 746]
    PVT_V1_15[758 758 346 346 1 903 708 749]
    PVT_V1_16[748 748 342 342 1 903 718 742]
    PVT_V1_17[753 753 350 350 1 896 723 745]
    PVT_V1_18[750 751 362 361 1 892 711 743]
    PVT_V1_19[748 748 374 374 1 897 703 742]
    PVT_V1_20[752 752 353 353 1 897 702 743]
    PVT_V1_21[751 751 352 352 1 896 714 742]
    PVT_V1_22[751 751 364 365 1 892 711 743]
    PVT_V1_23[749 749 352 352 1 897 702 742]
    PVT_V1_24[752 752 363 363 1 900 715 744]
    PVT_V1_25[749 749 359 359 1 898 712 741]
    PVT_V2_0[749 749 373 373 1 907 885 742]
    PVT_V2_1[755 755 368 368 1 902 713 746]
    PVT_V2_2[750 750 370 370 1 904 713 742]
    PVT_V2_3[756 756 353 353 1 902 709 747]
    PVT_V2_4[759 759 347 347 1 905 719 750]
    PVT_V2_5[748 748 355 355 1 897 722 741]
    PVT_V2_6[749 749 359 359 1 898 711 742]
    PVT_V2_7[753 752 353 353 1 902 711 745]
    PVT_V2_8[754 754 341 341 1 902 717 746]
    PVT_V2_9[753 753 354 354 1 895 721 745]
    PVT_V2_10[755 755 354 354 1 901 708 748]
    PVT_V2_11[749 748 347 346 1 907 712 740]
    PVT_V2_12[752 752 349 350 1 898 725 745]
    PVT_V2_13[752 752 351 352 0 897 709 744]
    PVT_V2_14[755 755 344 344 1 904 715 747]
    PVT_V2_15[757 757 344 344 1 899 721 748]
    PVT_V2_16[750 750 358 358 1 896 716 742]
    PVT_V2_17[751 751 353 352 1 904 706 744]
    PVT_V2_18[754 754 354 354 1 898 718 746]
    PVT_V2_19[757 757 355 355 1 894 713 749]
    PVT_V2_20[754 754 365 365 1 897 707 745]
    PVT_V2_21[748 748 361 361 1 891 707 739]
    PVT_V2_22[751 751 366 367 1 899 703 743]
    PVT_V2_23[751 751 365 365 1 891 706 743]
    PVT_V2_24[753 753 371 371 1 901 703 745]
    PVT_V2_25[751 751 381 381 1 896 707 744]
    PVT_V3_0[754 754 368 368 1 905 893 746]
    PVT_V3_1[755 755 364 364 1 897 714 748]
    PVT_V3_2[750 750 364 364 1 898 707 743]
    PVT_V3_3[751 751 356 356 1 899 711 742]
    PVT_V3_4[753 753 361 361 1 900 714 744]
    PVT_V3_5[751 751 374 375 1 896 710 743]
    PVT_V3_6[753 753 359 359 1 895 701 745]
    PVT_V3_7[750 750 354 354 1 895 706 743]
    PVT_V3_8[752 752 343 343 1 898 708 744]
    PVT_V3_9[751 751 351 351 1 900 718 742]
    PVT_V3_10[752 752 345 345 1 899 714 745]
    PVT_V3_11[758 758 351 351 1 902 718 751]
    PVT_V3_12[753 753 361 361 1 900 716 745]
    PVT_V3_13[751 751 349 349 1 895 703 743]
    PVT_V3_14[759 759 389 389 1 904 713 750]
    PVT_V3_15[756 756 339 339 1 900 699 747]
    PVT_V3_16[754 754 347 347 1 900 720 745]
    PVT_V3_17[752 752 348 348 1 897 717 744]
    PVT_V3_18[754 754 368 368 1 896 713 746]
    PVT_V3_19[754 754 358 358 1 899 704 746]
    PVT_V3_20[753 753 357 357 1 904 711 746]
    PVT_V3_21[752 752 349 349 1 898 717 743]
    PVT_V3_22[752 752 359 359 1 901 716 744]
    PVT_V3_23[749 748 363 363 1 897 715 740]
    PVT_V3_24[754 754 367 367 1 898 709 746]
    PVT_V3_25[753 753 367 367 1 900 708 744]


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on May 15, 2018, 01:37:59 PM
There seems to be something wrong with one of your hash boards.

Hash Board #0.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: mgoz on May 15, 2018, 03:56:36 PM
Those values might be part of some startup sequence. It crashed again overnight. The 0 and -40 values seem to cycle through all of the chips on all boards for about the first 10 minutes of hashing. After it goes through all, values look normal. I haven't checked other machines to see if they do it as well. Not getting anywhere with Canaan support still. Have been sending them logs of when it's crashed and after it's rebooted, and they say it's fine. Machine powers off entirely, gets removed from cgminer, and there's nothing in logs when crashed.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: smd75jr2 on May 15, 2018, 06:40:56 PM
I have been having the exact same issue and have had some success with taking off the back cover plate and using compressed air to clean dust off of the boards.

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]


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: mgoz on May 18, 2018, 02:02:38 PM
Just an update that support had me swap MM boards between working and crashing unit. Same unit still crashing. Last night I was monitoring temperatures and fan speed, saw nothing abnormal, and unit suddenly disappeared from cgminer. Checked it and it was entirely off. Going to try swapping fans tonight, but starting to think repeated overheating from fan reporting 0RPM/100% has already done more damage. Previously it would sit in idle status after crashing and now power is cut entirely.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on May 18, 2018, 02:41:36 PM
@mgoz  I have a strong gut feeling that your cooling fan is faulty.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: mgoz on May 19, 2018, 08:32:55 PM
@mgoz  I have a strong gut feeling that your cooling fan is faulty.

Seems to be the case. Swapped fans last night and finally witnessed crash. Other unit that's had no issue just reported fan spinning at 0RPM/100%. Fan was stopped. Went into idle status with yellow LED and chips began to overheat to over 100C. Right before fan stopped, crashed unit was reporting fan at 5790RPM/100% with other unit reporting 5820/98%. Intake and exhaust temps were 24/69C.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Waldorfmining on June 09, 2018, 08:17:16 PM
Thanks for the guide, most helpful. I am trying to improve cost per t/h I can use the frequency command to slow things down but the kwh per th is worse than just running on standard settings. I cannot get the -avalon7-voltage-level 12 command to work the miner does not run at all. Any ideas?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: NotFuzzyWarm on June 11, 2018, 07:24:56 PM
Thanks for the guide, most helpful. I am trying to improve cost per t/h I can use the frequency command to slow things down but the kwh per th is worse than just running on standard settings. I cannot get the -avalon7-voltage-level 12 command to work the miner does not run at all. Any ideas?
And what miner are you using it on? It only works with an A721 or A741, the A8's have a different format. Did you use the double '--' or just a single '-'? the commands must start with --
I use: --api-listen --avalon7-voltage-level 12 in conjunction with a Voltage Offset of either -1 or -2.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: NotFuzzyWarm on August 08, 2018, 08:06:20 PM
One of my A741's is hashing 2THs slower than its brethren. Looking at the logs in its section I see:
    MW0[12 11 19 14 26 25 23 24 20 15 20 17 15 16 20 21 13 23 18 12 20 18]
    MW1[17 19 25 18 19 27 23 22 23 18 18 19 19 17 17 19 24 21 18 21 17 18]
    MW2[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
    MW3[12 16 22 32 18 20 18 15 22 15 15 23 21 19 18 21 27 21 25 21 17 24]

I take it I've lost a module? Which one so I can try a swap to verify and let Canaan know I need a Warranty replacement for it.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on August 09, 2018, 04:24:24 AM
@NotFuzzyWarm

Yeah it looks like one of the four hash boards is bad (#2).

Check out the picture right above the chapter three title.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: NotFuzzyWarm on August 09, 2018, 02:44:41 PM
Got it. Since Blokforge has 841's for $599 I picked up another to replace this 741 when I later take it offline for repair. Haggs, since the A7's are past EOL and out of production, when you were at Canaan did they say anything as to how long they will support the 721/741's with replacement hash boards?

Gotta love when Electronic and Mechanical engineers insist on using their own numbering styles: "MW2" which is actually the 3rd board...http://www.sherv.net/cm/emoticons/hand-gestures/facepalm-hand-gesture-smiley-emoticon.gif (http://www.sherv.net/)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: mgoz on August 09, 2018, 05:02:21 PM
Gotta love when Electronic and Mechanical engineers insist on using their own numbering styles: "MW2" which is actually the 3rd board...

Not really their own numbering style. It's zero-based numbering, which is used in almost every programming language since C.  ;)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: NotFuzzyWarm on August 09, 2018, 05:41:35 PM
ya I know. Point still is that for clear customer-level documentation it should be harmonized one way or the other.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on August 09, 2018, 09:35:01 PM
Better marking would also help it.
So when you open it, you could clearly see which is board 0, 1, 2 and 3.

If I remember right, I think that Canaan should have spare parts available for at least two years after the miner release.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: NotFuzzyWarm on August 10, 2018, 02:17:12 AM
Quick question: I'll find out when I get the replacement 841 next week sometime and open up the 741 but you mention repasting the chips - but only the top side. What does the back of the boards look like? Bare filled thermal vias (bumps) w/paste directly against the large back side heat sinks or is there layer of TIM between board and heatsink?

When repasting the top side of chips and their smaller heat sink, any reason not to do the backside as well? Aside from needing to when doing board swaps of course.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Steamtyme on August 10, 2018, 04:29:21 PM
Haha, same boat NotFuzzy.

One of my 741's has a board down. I haven't pulled it to play around and see if it's just the board or PMU yet. You should be able to test that by swapping the board positions on that one blade, to differentiate.

I still have the dead boards from the 841 video I shot I'll clean off the old paste to give a clear picture of what the back of the board looks like. From what I remember they appeared to be flat, but I can't be sure with the paste having already been applied.

I haven't checked with Canaan, but when they sent out the replacement boards for the 841, they sent them pre-pasted (back and chips). I think that is how they plan to send out replacement boards.

Edit: Image of the flat metal surface the board is "laminated" to. I couldn't get a clear image of the side view showing the mating of the surfaces.

http://i.imgur.com/KRmsqIOt.jpg (https://imgur.com/KRmsqIO)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: NotFuzzyWarm on August 10, 2018, 08:35:35 PM
Cool. Sounds/looks like they are using TLam(R) which is an aluminum-backed circuit board material made just for high power apps like this. Once again, as with the heat sink design just goes to show that Canaan has some pretty sharp designers. :D


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Steamtyme on August 16, 2018, 05:56:36 AM
^^ Thanks I learned something new.

I figured I'd reach out to Canaan in regards to sourcing parts for the 741. There advice is to email them - rma@canaan.io - This is to ensure you are requesting the right replacement part.

Sounds like they have a lot of 741's still kicking around. When I spoke with them they did suggest it may be beneficial to just purchase an entire unit. This made sense as you would essentially have a spare for anything that can fail. Not sure what the pricing is on any spare parts as all miners will be outside of the warranty period.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: NotFuzzyWarm on August 16, 2018, 02:10:40 PM
I might just do that or simply use the gimpy 741 as a donor miner for my others. I already have a 841 that should arrive today that will be taking the 741's power allocation so will actually be ahead in THs when I put it online and take the 741 off.

One example of the thermal circuit boards are these from Epic https://www.epectec.com/pcb/aluminum-circuit-boards.html


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Megaquake on September 07, 2018, 02:31:24 AM
 I believe this would be the best place to post this, the MOD can delete the thread I started on the main board.

 I Have an 841 that just wants to run at 15.8TH/s+ no matter what I set the voltages at even the max temperature setting seems no help.

https://i.imgur.com/Tis3Ma9.png

 Once it goes above the max temperature it will slow down to normal speeds, cools then repeats!


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Steamtyme on September 07, 2018, 04:43:38 AM
Have you played with the "more options" feature.

If not, from what I remember the basic voltage offset option actually doesn't do anything.

https://bitcointalk.org/index.php?topic=3375954.msg35984423#msg35984423

Here is the beginning of the posts that first covered the commands. The level adjustment has a greater effect.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Megaquake on September 07, 2018, 06:30:24 AM
Have you played with the "more options" feature.

If not, from what I remember the basic voltage offset option actually doesn't do anything.

https://bitcointalk.org/index.php?topic=3375954.msg35984423#msg35984423

Here is the beginning of the posts that first covered the commands. The level adjustment has a greater effect.

Yes I am affluent on those just take a look at the next post down from the one you linked up :P


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on September 07, 2018, 11:14:55 AM
^ Try forcing it to default or -1, see if that has any effect.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Steamtyme on September 07, 2018, 02:07:03 PM
Yes I am affluent on those just take a look at the next post down from the one you linked up :P

Missed that on the phone yesterday, I've replied in your specific thread, fairly interested to get more details on the issue. Almost a bonus if there are no adverse affects.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: gvb on September 08, 2018, 05:40:50 PM
hello,

I have a software related question...

I have added the pool & solo CK server to my 741.

But from what I can see only the first one (pool 0) is being used.

Pool: 1
URL: stratum+tcp://de.ckpool.org:3333
StratumActive: false
Status: Alive
   
Doesn't the controller software have the load balancing mode as option?

The main screen also mentions "1 module active" does that mean 1 full device or 1 of the 2 boards of 1 device?
Or is this a software module?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Steamtyme on September 08, 2018, 06:27:17 PM
You will only see 1 pool active at a time, as you can't send work to more than one place at a time. The other 2 are just there in case the first one fails for whatever reason.

I'm not sure what you mean about the 1 module active, can you post a screen cap? If on the miner status page you are seeing a hashrate of around 7.3 everything should be fine.

Wait you are probably in the basic main status page, if so and you see 1 module, I'm pretty sure that means 1 miner. Click on the advanced button for a better overview of what is going on with you machines. This is step 2 in the OP for this thread.

From here you can check the status page, and the API log. These 2 pages will let you know if there are any problems. You can also post screenshots and someone can look them over with you.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: gvb on September 08, 2018, 06:41:33 PM
I added --balance to the additional options and now both servers are active.

but the second server's GetWorks counter goes up sometimes but it doesn't seem to receive jobs.

Is there a way to get rid of that third server? I can't disable it and I don't know if entering the same server twice is a good idea.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Megaquake on September 09, 2018, 09:55:12 AM
^ Try forcing it to default or -1, see if that has any effect.

Yes I tried both and even dusted it out, changed controller oh well, I guess I will leave it like that with an A/C duct pointed right at it it stays at 14.8 to 15.1 TH/s @ 30 / 86c

the other 2 next to it run 13.6TH/s each  26 / 78c and 26 / 73c respectively.



hello,

I have a software related question...

You may need to disable failover mode


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Megaquake on September 10, 2018, 01:02:33 PM
Any place in the US do warranty work on these, I am going to get that done that miner is too unstable mining at 15TH/s then mines at 5-6 TH;s for a good period of time and tried everything from a new PSU, controller and new MM firmware


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: NotFuzzyWarm on September 10, 2018, 01:11:24 PM
The point of the Avalons is that the user can troubleshoot them and narrow the problem down to a board. At that point Canaan or the distributor you bought it from can send a replacement board.

Have you even tried the trouble shooting procedures outlined on the 1st page? Have you opened a support ticket with the distributor or Canaan?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: cryptomench on September 16, 2018, 02:23:15 AM
Has anyone had trouble with CGMiner constantly restarting?

It's only just started recently, it will run and then idle/CG miner restarts. My CGMiner elapsed time generally doesn't go over 5mins... see graph below.

Is my controller screwed?

https://imgur.com/a/g1iG0YP - graph showing, dip/restart

https://imgur.com/a/x3TTXiU - Elapsed time restarting also date seems to be wrong, not sure if that matters.

I'm getting  ECHU[16 0 0 144], not sure what this error means. It says it's just an overflow? is this the problem?

Code:
[Firmware Version] => Avalon Firmware - 20170603
    luci: ffc1d59
    cgminer: 2354004
    cgminer-packages: d309c69
Reply was 'STATUS=S,When=1483452143,Code=70,Msg=CGMiner stats,Description=cgminer 4.10.0|STATS=0,ID=AV70,Elapsed=135,Calls=0,Wait=0.000000,Max=0.000000,Min=99999999.000000,MM ID1=Ver[7411706-3162860]
    DNA[013b3d22b7084e66]
    Elapsed[137]
    MW[1518 1509 1496 1496]
    LW[6019]
    MH[0 1 0 0]
    HW[1]
    DH[0.000%]
    Temp[31]
    TMax[85]
    Fan[2850]
    FanR[29%]
    Vi[1199 1199 1196 1196]
    Vo[4415 4434 4415 4424]
    PLL0[1455 1361 0 0 0 0]
    PLL1[1391 1425 0 0 0 0]
    PLL2[1317 1499 0 0 0 0]
    PLL3[2738 78 0 0 0 0]
    GHSmm[6915.47]
    WU[91909.02]
    Freq[613.94]
    PG[15]
    Led[0]
    MW0[7 7 13 3 6 1 3 9 10 4 5 8 5 8 3 4 6 3 5 5 6 2]
    MW1[5 6 2 3 5 4 3 0 4 5 9 5 1 4 6 2 5 5 8 5 5 3]
    MW2[11 4 8 5 4 3 6 5 4 4 3 3 3 4 2 6 5 6 7 3 1 4]
    MW3[0 4 5 3 6 4 3 5 4 4 2 6 3 5 1 9 6 10 4 6 6 6]
    TA[88]
    ECHU[16 0 0 144]
    ECMM[0]
    FAC0[0]
    SF0[600 636 672 708 744 780]
    SF1[600 636 672 708 744 780]
    SF2[600 636 672 708 744 780]
    SF3[600 636 672 708 744 780]
    PMUV[12c0 12c0]
    ERATIO0[0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%]
    ERATIO1[0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%]
    ERATIO2[0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%]
    ERATIO3[0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%]
    C_0_00[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_1_00[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_2_00[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_3_00[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_0_01[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_1_01[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_2_01[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_3_01[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_0_02[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_1_02[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_2_02[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_3_02[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_0_03[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_1_03[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_2_03[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_3_03[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_0_04[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_1_04[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_2_04[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_3_04[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    GHSmm00[78.74 79.14 78.92 78.38 78.71 78.67 79.39 78.38 78.82 78.35 77.66 79.10 79.10 78.71 78.38 78.74 78.82 78.71 79.03 78.38 78.89 79.18]
    GHSmm01[78.89 78.46 78.89 79.54 78.31 78.85 79.14 78.89 78.53 79.28 77.20 79.14 79.03 79.03 79.39 79.50 79.14 79.21 78.64 79.10 78.92 79.75]
    GHSmm02[79.03 79.57 79.46 79.18 79.32 78.92 79.03 78.67 79.03 79.03 78.67 79.07 79.64 79.14 78.74 79.25 79.10 79.03 79.18 79.46 79.32 79.61]
    GHSmm03[76.80 76.80 76.80 76.80 76.80 76.80 76.80 76.80 76.80 76.80 76.80 76.91 76.80 76.80 76.91 77.02 76.87 77.34 76.91 77.23 77.27 76.87]
    FM[1]
    CRC[0 0 0 0]
    PAIRS[0 0 0]
    PVT_T[21-70/11-78/74 1-76/12-85/80 20-67/12-77/72 20-65/14-72/68],MM Count=1,Smart Speed=1,Connecter=AUC,AUC VER=AUC-20151208,AUC I2C Speed=400000,AUC I2C XDelay=19200,AUC Sensor=16290,AUC Temperature=25.65,Connection Overloaded=false,Voltage Offset=0,Nonce Mask=29,USB Pipe=0,USB Delay=r0 0.000000 w0 0.000000,USB tmo=0 0|STATS=1,ID=POOL0,Elapsed=135,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=7192.00000000,Min Diff=4795.00000000,Max Diff=7192.00000000,Min Diff Count=292,Max Diff Count=127,Times Sent=36,Bytes Sent=4834,Times Recv=43,Bytes Recv=6035,Net Bytes Sent=4834,Net Bytes Recv=6035|STATS=2,ID=POOL1,Elapsed=135,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=8192.00000000,Min Diff=8192.00000000,Max Diff=8192.00000000,Min Diff Count=16,Max Diff Count=16,Times Sent=2,Bytes Sent=149,Times Recv=5,Bytes Recv=3119,Net Bytes Sent=149,Net Bytes Recv=3119|STATS=3,ID=POOL2,Elapsed=135,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=149,Times Recv=4,Bytes Recv=1658,Net Bytes Sent=149,Net Bytes Recv=1658|'
[STATUS] =>
(
   [STATUS] => S
   [When] => 1483452143
   Code => 70
   [Msg] => CGMiner stats
   [Description] => cgminer 4.10.0
)
[STATS0] =>
(
   [STATS] => 0
   [ID] => AV70
   [Elapsed] => 135
   [Calls] => 0
   [Wait] => 0.000000
   [Max] => 0.000000
   [Min] => 99999999.000000
   [MM ID1] => Ver[7411706-3162860]
    DNA[013b3d22b7084e66]
    Elapsed[137]
    MW[1518 1509 1496 1496]
    LW[6019]
    MH[0 1 0 0]
    HW[1]
    DH[0.000%]
    Temp[31]
    TMax[85]
    Fan[2850]
    FanR[29%]
    Vi[1199 1199 1196 1196]
    Vo[4415 4434 4415 4424]
    PLL0[1455 1361 0 0 0 0]
    PLL1[1391 1425 0 0 0 0]
    PLL2[1317 1499 0 0 0 0]
    PLL3[2738 78 0 0 0 0]
    GHSmm[6915.47]
    WU[91909.02]
    Freq[613.94]
    PG[15]
    Led[0]
    MW0[7 7 13 3 6 1 3 9 10 4 5 8 5 8 3 4 6 3 5 5 6 2]
    MW1[5 6 2 3 5 4 3 0 4 5 9 5 1 4 6 2 5 5 8 5 5 3]
    MW2[11 4 8 5 4 3 6 5 4 4 3 3 3 4 2 6 5 6 7 3 1 4]
    MW3[0 4 5 3 6 4 3 5 4 4 2 6 3 5 1 9 6 10 4 6 6 6]
    TA[88]
    ECHU[16 0 0 144]
    ECMM[0]
    FAC0[0]
    SF0[600 636 672 708 744 780]
    SF1[600 636 672 708 744 780]
    SF2[600 636 672 708 744 780]
    SF3[600 636 672 708 744 780]
    PMUV[12c0 12c0]
    ERATIO0[0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%]
    ERATIO1[0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%]
    ERATIO2[0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%]
    ERATIO3[0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%]
    C_0_00[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_1_00[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_2_00[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_3_00[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_0_01[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_1_01[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_2_01[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_3_01[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_0_02[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_1_02[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_2_02[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_3_02[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_0_03[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_1_03[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_2_03[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_3_03[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_0_04[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_1_04[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_2_04[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    C_3_04[    0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0]
    GHSmm00[78.74 79.14 78.92 78.38 78.71 78.67 79.39 78.38 78.82 78.35 77.66 79.10 79.10 78.71 78.38 78.74 78.82 78.71 79.03 78.38 78.89 79.18]
    GHSmm01[78.89 78.46 78.89 79.54 78.31 78.85 79.14 78.89 78.53 79.28 77.20 79.14 79.03 79.03 79.39 79.50 79.14 79.21 78.64 79.10 78.92 79.75]
    GHSmm02[79.03 79.57 79.46 79.18 79.32 78.92 79.03 78.67 79.03 79.03 78.67 79.07 79.64 79.14 78.74 79.25 79.10 79.03 79.18 79.46 79.32 79.61]
    GHSmm03[76.80 76.80 76.80 76.80 76.80 76.80 76.80 76.80 76.80 76.80 76.80 76.91 76.80 76.80 76.91 77.02 76.87 77.34 76.91 77.23 77.27 76.87]
    FM[1]
    CRC[0 0 0 0]
    PAIRS[0 0 0]
    PVT_T[21-70/11-78/74 1-76/12-85/80 20-67/12-77/72 20-65/14-72/68]
   [MM Count] => 1
   [Smart Speed] => 1
   [Connecter] => AUC
   [AUC VER] => AUC-20151208
   [AUC I2C Speed] => 400000
   [AUC I2C XDelay] => 19200
   [AUC Sensor] => 16290
   [AUC Temperature] => 25.65
   [Connection Overloaded] => false
   [Voltage Offset] => 0
   [Nonce Mask] => 29
   [USB Pipe] => 0
   [USB Delay] => r0 0.000000 w0 0.000000
   [USB tmo] => 0 0
)
[STATS1] =>
(
   [STATS] => 1
   [ID] => POOL0
   [Elapsed] => 135
   [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] => 7192.00000000
   [Min Diff] => 4795.00000000
   [Max Diff] => 7192.00000000
   [Min Diff Count] => 292
   [Max Diff Count] => 127
   [Times Sent] => 36
   [Bytes Sent] => 4834
   [Times Recv] => 43
   [Bytes Recv] => 6035
   [Net Bytes Sent] => 4834
   [Net Bytes Recv] => 6035
)
[STATS2] =>
(
   [STATS] => 2
   [ID] => POOL1
   [Elapsed] => 135
   [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] => 8192.00000000
   [Min Diff] => 8192.00000000
   [Max Diff] => 8192.00000000
   [Min Diff Count] => 16
   [Max Diff Count] => 16
   [Times Sent] => 2
   [Bytes Sent] => 149
   [Times Recv] => 5
   [Bytes Recv] => 3119
   [Net Bytes Sent] => 149
   [Net Bytes Recv] => 3119
)
[STATS3] =>
(
   [STATS] => 3
   [ID] => POOL2
   [Elapsed] => 135
   [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] => 149
   [Times Recv] => 4
   [Bytes Recv] => 1658
   [Net Bytes Sent] => 149
   [Net Bytes Recv] => 1658
)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Steamtyme on September 18, 2018, 10:02:37 PM
Hey there,

What are your ambient temperatures. One of the errors, the 144 is a combination of the 16, and the 128. The 128 is a warning regarding a "too hot" situation on the control board, but I think it relates to the specific hashboard, not sure.

I'm guessing this is a 741? Has it been cleaned out recently? Did you make any changes?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on October 13, 2018, 11:55:46 AM
I had a mistake in the bitcointalk forum version of this guide.

The mistake was in the Table 1. AvalonMiner LED colors.

There was an image of PMU LED colors table, which is obviously a wrong image.

I have put the right image in place now.

It took me too long to notice the error, sorry.  :-[

The .pdf document version has been ok the whole time.




BTW. Steven has posted a neat promotional video for the AvalonMiner 851 at the Canaan.io website.
The video also mentions the easy DIY repairs, which this guide supports.  :)

Direct link to the video: https://youtu.be/pJmJ4nFOiig (https://youtu.be/pJmJ4nFOiig)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: cromsps on October 16, 2018, 01:36:38 PM
Hello,

I have a few M3, and now I'm getting 2 x 741,
but I have a problem with power cost and noise, so I made a search and I
read somewhere how to put the Fan working only at 70% by editing a file, or one option to set 0, -1 or -2 to consume less power and make less noise,
but I  cannot find it now :(  
Can you please help me ?

EDIT:  Ok I found it, its here https://bitcointalk.org/index.php?topic=2521707.0
Thanks :-)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: cromsps on October 31, 2018, 04:08:51 PM
Has anyone had trouble with CGMiner constantly restarting?

It's only just started recently, it will run and then idle/CG miner restarts. My CGMiner elapsed time generally doesn't go over 5mins... see graph below.

[...]

Hello,

Could you solve this ?

I have 2 separate 741, and they both are making what you described above. So it cannot be a cable, a fan, or a sensor, cause it happens on separate systems...
I'm running out of ideas :( ... Are you using NiceHash?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on October 31, 2018, 05:17:07 PM
Have you tried reflashing the openwrt firmware?

What is your psu for the rasp pi?

Have you tried another rasp pi?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: cromsps on October 31, 2018, 06:01:11 PM
Have you tried reflashing the openwrt firmware?

What is your psu for the rasp pi?

Have you tried another rasp pi?

Hello @Hagss,

yes, I've reflash the firmware 3 times... The first time I had issues with my router, then I picked up another image (the most recent) from here
https://canaan.io/downloads/people/mikeqin/avalon741/openwrt/nicehash/20170719/ and after configurating everything was ok. Then after this problem, I tried on more time with this image.

My PSU for the PI its a 2.4amp, I know that it was supposed to be at least a 2.5amp, but this is a PI 2 B, wich consumes far more less power... do you think it can be from here?? is it possible that if the PI looses power the Miner Restarts? cause its just one second and I hear the Fan coming up and start see it on GUI.

No, I have not tried another PI :(


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on October 31, 2018, 06:03:56 PM
You are ok with that firmware
and the psu is also ok for the Rasp Pi 2.

But one more question about the psu, is it a good quality one?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: cromsps on October 31, 2018, 11:05:56 PM
Hello,

Yes, both are... The one to the PI its from a nice brand and the one to the miner its a 1600W Bitmain and I already tested with a 2200W from another miner.

On one 741 I have

Code:
ECHU[0 128 0 0],

on the other I have,

Code:
ECHU[0 512 0 0]

But it could not be Temp :-\ cause it happens on both the same thing,
and for test I put

Code:
--avalon7-voltage-level 6

and LIMIT FAN MINIMUM at 4000RPMs, so temp is around 21 and still reboots :-\


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on November 01, 2018, 05:33:22 AM
Have you opened a support ticket at www.canaan.io ?

I have not seen a 741 behaving like this before.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: cromsps on November 05, 2018, 07:30:05 PM
Have you opened a support ticket at www.canaan.io ?

I have not seen a 741 behaving like this before.

Hello,

No, cause I bought them used from cryptouniverse(?)...
In this thread, theres another one complaining with the same things... I changed the PI power supply and does the same thing.

@Hagss now you're going to think that I'm crazy :D that this problem its from the Lan lol... I've seen people complaining about the same thing, but they dont stop mining so no one cares about it, if we have a lot of them.

But with Static IP and with Google DNS it can take about 20 to 30 minutes whitout restarting, with DHCP, it takes only 4 to 6 minutes... I think, when it losees Lan for some reason, it it disconnects from the miners for a second or two, do know if this is possible?... But now I can only test it on the weekend with other Router... Also dont know why it needs IPV4 BroadCast on the network ??? :-\ But I am going to test it....



Well after testing the images on other 2 places it worked... For some how, one of my routers of one of my ISPs does not work with all the canaan PI images except with the nicehash image.

But still keeps restarting on Nicehash. On Kano, Slush and other pools, it stays working for 24h without restarting the CgMiner.
I think thats because the nicehash server address is redirecting to the server that the nicehash client asks at th moment. So it works 5, 6 or 7 minutes on one client, then stops (the 741 comes down, restarts cgminer) and connects to another nicehash Client.

If this happens to somenone, the solution for now (and for me), is mining on a "real" pool :-) it works with nicehash, but its always restarting and we will keep listening the miner boots up after one work :-)  but the shares are there and its counting :-)

If someone knows how to solve this without compiling the OpenWrt, with a "keep connection alive", or whatever, please tell me :-)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: Steamtyme on November 05, 2018, 07:40:04 PM
Thanks for the update. The only other time I remember someone having an issue like this they didn't come back with an answer. Glad everything is up and running.

My theory was that it had to do with Nicehash switching orders or something. It was just a guess as I've never used NH.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: cromsps on November 06, 2018, 12:53:34 AM
It's me who should thank you for all your help :-)

I think your theory is right. The M3 and the S9 dont do this, but on the Pools page they only have Server, Worker and Pass. On the OpenWrt beside the pools we have the Fan Speed, Voltage and other settings, so if we apply a change only on the server (NH switching Job) it has to restart the system cause it doesnt know if we change voltage or other settings. just my thoughts :-)

Edit: the most strange thing, its the ECHU giving codes on NH after restart, and on other pools gives all Zero :)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: spooderman on December 23, 2018, 09:27:44 PM
Hi all,

I have a set up consisting of 3 avalon miners. A 721 and two 741s.

I have not been able to get any mining done whatsoever. The Avalon controller was bought from blokforge and I have been able to connect to it, set up a pool and I have changed the network protocol to DHCP for easier access.

Following the guide (and I've read just about every post in here) has not helped. I have several AUC3 converters and two different AUC3 I2C 5PIN Cables. I have tried them in multiple configurations to no avail.

The miner powers up fine. The controller loads up fine. I can open up the interface fine. But no workers show up in the settings. "Avalon devices" remains empty.

I am not sure where the error is, I have multiple redundancies for everything, including miners, though only one controller. This is a legit avalon controller bought from blokforge flashed for 7 series.

Does anyone have any suggestions?

Regards,

Spooderman


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on December 23, 2018, 09:38:24 PM
Please try to reflash the Raspberry Pi and make a setup with one miner first.

Use the A741 openwrt firmware for the Raspberry Pi.


When you get it running, add the second miner.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: spooderman on December 24, 2018, 02:48:25 AM
Is there specific firmware for 741?

Is this the right place?

https://canaan.io/downloads/software/avalon7/openwrt/20161229/


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on December 24, 2018, 09:35:57 AM
Is there specific firmware for 741?

Is this the right place?

https://canaan.io/downloads/software/avalon7/openwrt/20161229/


Please go visit here, chapter 4: https://bitcointalk.org/index.php?topic=2588105

There are links and everything.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: spooderman on December 27, 2018, 12:52:38 AM
Hi,

I have followed this guide as stated. I have 2 of literally everything and both fail in the same way, so I assume that I am doing something wrong.

Any help would be appreciated. (Miners are simply not showing up in the interface. Currently in the debug I have "Socket connect failed => Connection refused")

Kind regards

edit: as is often the case, things are somehow working now. i flashed the firmware on the MM myself (which carries a hefty warning against doing so - not sure why, very simple to do).

if someone else can't get theirs working i wouldn't know what to tell them.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on December 27, 2018, 05:35:31 AM
Have you tried using another micro USB cable between the AUC3 dongle and Raspberry Pi?

Make sure that it is for both the power and data.

Is there any useful information in the CGMiner API Log?


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: spooderman on December 27, 2018, 07:37:17 AM
As edited above, it now works. I think flashing the MM with new firmware is what finally got me there.

Buying the avalon controller was a waste of money, I ended up using my old RPi and installing the software manually.

Oh well, guess I have a spare ($110) rpi.

I'm happy to be mining now nonetheless. Thanks for the suggestions.


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: HagssFIN on December 27, 2018, 09:59:26 AM
Okay,
great to hear that it is working now. :)


Title: Re: Troubleshooting and repair guide for AvalonMiner models 721, 741, 761, 821 & 841
Post by: kano on December 28, 2018, 11:02:42 PM
As edited above, it now works. I think flashing the MM with new firmware is what finally got me there.

Buying the avalon controller was a waste of money, I ended up using my old RPi and installing the software manually.

Oh well, guess I have a spare ($110) rpi.

I'm happy to be mining now nonetheless. Thanks for the suggestions.
The Avalon controller also comes with:

1 X SD Card
4 X AUC3
5 X Micro USB Cable

... so it wasn't a $110 RPi3 ... that's also now $100 :)