How do I connect a power supply unit to my miner so it is always powered on?

DISCLAIMER: Please make sure to first turn off and keep your power supply unplugged.

You do not need to connect the AvalonMiner to any computer motherboard. Instead, the trick that miners use is to cut a paperclip and fold into a “U” shape. Then, insert one end into the green wire and the other end into either black wire on the normal motherboard connector cable. Use electrical tape to tape up the connection safely.

Then, the power supply on and off switch controls the power on or off for your power supply.

May I use one AvalonMiner Controller (including Raspberry Pi 1, 2, & 3) with mixed Canaan AvalonMiner A6, A721 & A741?

Controller means AvalonMiner Controller (including Raspberry Pi 1, 2, & 3) in this FAQ.

Canaan recommends that you connect different types of AvalonMiner product series to separate Controllers. So if you have 5 X A6, 10 X A721 and 7 X A741, you would connect the A6 to one Controller, the A721 to another Controller, and the A741 to yet another Controller. Technically you could connect the A721 and A741 to the same controller, but then the voltage offset will be the same for both the A721 and the A741 in your chain. Of course, each Controller can manage 20 AvalonMiners, so if you have more than 20 units, you need to plan your setup accordingly.

How may I change the AvalonMiner 6 cutoff temperature?

The Avalon 6 use the same driver with Avalon 4.

There is not any direct way to change the temperature.
The only method is append ‘–avalon4-cutoff cutoff_temp’ in more_options.
e.g.: –avalon4-cutoff 82

The range of cutoff is 42 to 85 centigrade degree.

And the default value is 85.

So we can’t turn it up more than 85.

Could I use your personal computer to use an AvalonMiner?

Yes, this is possible. Some advanced users of the AvalonMiner want to run cgminer using a Windows, Macintosh or Linux computer. It is recommended that users of the AvalonMiner products use our AvalonMiner Controller product to make mining as simple as possible with the least issues. We STRONGLY do not recommend that you use these methods for running the miners because of how miners are now mining together in pools and the software setup is only for advanced experienced developers.

Here however are guides which can help with this process if you want to proceed at your own caution:

How do I upgrade my AvalonMiner and AvalonMiner Controller?

This guide is targeted at Avalon 6,  AvalonMiner 721 and AvalonMiner 741, called “AvalonMiner” in this guide to be upgraded by the AvalonMiner Controller (including Raspberry Pi 3), to be called “Controller” in this guide.

To upgrade the AvalonMiner, please insure your AvalonMiner is connected to a Controller. Make sure as well, you can access your Controller from a simple web browser successfully. This interface is called the Controller “Dashboard”.

Update Your Controller

  1. Access your Controller’s Dashboard.
  2. Click left-hand menu button “Advanced Version”.
  3. Click “System” tab.
  4. Click “Backup / Flash Firmware” tab.
  5. In the “Flash new firmware image” section, click “Choose File”
  6. Select the latest image provided from Canaan Support page for your product.
  7. Click “Flash image…”
  8. Wait on image to completely be written, at least 1-2 minutes of time.

Update Your AvalonMiner

  1. Access your Controller’s Dashboard.
  2. Click left-hand menu button “Advanced Version”.
  3. Click the top menu “Status” tab.
  4. Click the “MM Upgrade” tab.
  5. In the “Flash new MM firmware image” section.
  6. Click “Choose File”
  7. Select the appropriate MM firmware image.
  8. Click “Upload”
  9. Wait at least 3-5 minutes for the process to complete.

That is it! We will continue to improve this guide. If you found any issues with this guide, please submit a ticket and help us improve.

I upgraded my AvalonMiner firmware to the wrong version. What do I do?

This example assumes someone upgraded their Avalon 6 to an AvalonMiner 721 MM firmware and their miner is now frozen or fan not working or basically the entire miner is not working as expected.

When we discuss controller in this FAQ, we mean AvalonMiner Controller, Raspberry 1, 2, or 3.

This FAQ is an attempt to repair that issue.

First, you need to make sure which product you physically have in your possession. If you have an Avalon 6 and you upgraded to the AvalonMiner 721 MM firware, then continue to read. This guide is also similar if you tried other hardware configurations, as our MM firmware is specific to each hardware model we release. There are no benefits to upgraded an Avalon 6 to the Avalonminer 721 firmware for example.

First, you need to visit this page:

And then navigate here:

And install through your controller’s MM upgrade screen:

Upon upgrading your firmware, you need to let the upgrade take place for like 2-4 minutes until it is clear the process is complete.

IMPORTANT TIP: Power on the Avalon 6 when you start to click the upgrade. make sure the Avalon 6 is power off before you upgrade.

If the Avalon 6 restart after the upgrade, then it should display in the CGMiner Status page now.

That should be enough to repair your firmware you upgraded. And, if you still have problems, please contact support.

How do I set the default miner pool user to my own wallet or username?

This answer assumes you have your AvalonMiner setup and connected to your AvalonMiner Controller or other controller (Raspberry Pi 1, 2, or 3) running the latest software Canaan released for your supported hardware. And, that your controller is connected to the Internet and when you view your controller’s web interface through a simple web browser, you see from the Cgminer tab your miner mining with numbers and statistics available.

Once you have your controller working and can access it from a simple web browser. Once you can view the “Cgminer Configuration” tab, you need to change the pool user setting. By default our miners are set to CKPool ( because the operators build on Open Source software tools and have simple configuration rules that make it easier for new miners to start mining. Also, by default there is a mining pool user set that needs to be changed. By default that is set to “canaan.3333”.

There are two ways to change this setting. One is to change the default user to your Bitcoin wallet address. For password on the Cgminer Configuration page, you may put anything (like a simple “x” in the password field.

The second way is to create a CKPool account as described on the main page of their website: Once you have created your account on CKPool, go back to the Cgminer Configuration panel loaded from your controller in a simple web browser. Use this form for the mining pool user “REPLACE_FOR_YOUR_USERNAME.worker” and “x” as the password (although the password does not matter in this field).