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How to Swap Control Boards on a S19

Swapping control boards is a fairly easy process on the S19. Once you get the hang of it and learn how to factory reflash and update firmware, it becomes a breeze. You will want to swap your control board if the control board goes bad or you have received an AM Logic control board and want to run Vnish firmware. When you are buying a new machine, there is no way to tell what type of control board you will be receiving.

What type of control board should I get?

Beagle Bone control boards are compatible with S19j and S19j Pro models. Xilinx are compatible with all models. AM logic Boards (I don’t recommend as a replacement) should only be replaced if the model came with it. We sell control boards on our website at Buy mining parts here – Kaboomracks.

Things you will need:

  1. Philips Head Screwdriver
  2. New Control Board
  3. 8gb Micro SD Card

Before you Start:

ASICS are industrial grade machines and should be treated as such. Power down the machine by either switching of PDU or unplugging cables before attempting to try and remove the old control board. Also wait for a minute or two for the Power Supply to fully power down after unplugging before attempted to touch anywhere near the bus bars.

Removing Old Control Board:

  1. The first step is to take off the top cover on your miner so that the control board is exposed.
  2. Next, unplug the fans, the ribbon wires to the hashboards, and the power supply cables from the control board.
  3. Then unscrew the front plate holding in the control board, and slide it out.

Replacing with New Control Board:

  1. Slide new control board into place
  2. Plug in fans, ribbon wires, and power supply cords.
  3. Wait to put top back on if you are installing a Beagle Bone Controller

Powering Up and Flashing Firmware:

When you power up the machine, you may have to factory reflash firmware onto your unit, or at least update through the “Firmware Update” function in the machine’s dashboard. Firmware can be found at BITMAIN Shop.

The reflash firmware is hidden a bit and can be downloaded if you choose “Others” in the left drop down, and “Flashing SD Card with Image” in the right drop down.

There will be a bunch of options of firmware, not ordered in any sort of particular order. It is important that you use the correct firmware, or you will be unhappy and spending a lot of time trying to figure out what went wrong.

Match up your model with the control board which will specified in the firmware title. When you have it downloaded, unzip the file and drag the files over onto a Micro SD card. The Micro SD card must be 8gb-16gb. We sell them on our store if you need some Kaboomracks Sd Card (8GB). Once your firmware is flashed, all you should have to do is enter your pool information and you will be good to go!

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