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Comprehensive Guide to Finding the Right Replacement Control Board for Your Antminer

Table of Contents

The control board is the brain of your Antminer, managing all operations and ensuring optimal performance. However, finding a compatible replacement control board can be challenging due to the variety of models and versions available. This guide aims to simplify the process by providing a detailed list of compatible control boards for each Antminer model, ensuring you can quickly find the right part to get your miner back up and running.

Control boards are essential for the functionality of Antminer devices. They control the ASIC chips that perform the hashing functions, manage power distribution, and handle communication with the mining pool. Different Antminer models use various types of control boards, such as the Xilinx 7007 Zync, AMlogic A113D, and BeagleBone. Knowing which control board your Antminer uses is crucial for successful replacements.

Before purchasing a replacement control board, it’s essential to identify your Antminer model accurately. Check the model number printed on your device or refer to the documentation provided by the manufacturer. Knowing your exact model ensures you select a compatible control board, avoiding potential compatibility issues.

To assist you in finding the right control board, we’ve compiled a comprehensive list of Antminer models and their compatible control boards. This list will help you quickly identify the correct replacement part for your device.

Understanding Antminer Control Boards

A control board is the brain of your Antminer, responsible for managing and coordinating all the essential functions of the mining device. It oversees the operation of ASIC chips, power distribution, temperature control, and communication with mining pools. In essence, without a properly functioning control board, an Antminer cannot perform its primary task of mining cryptocurrency efficiently.

Role of a Control Board in Antminer Devices

  1. ASIC Chip Management: The control board directs the ASIC chips, which handle the actual mining computations. It ensures that each chip performs optimally and adjusts operations based on real-time performance data.
  2. Power Distribution: It regulates the power supply to various components of the miner, maintaining efficiency and preventing overloads.
  3. Temperature Control: The control board monitors the temperature of the device and adjusts fan speeds to keep the system cool, preventing overheating and potential damage.
  4. Communication: It manages the connection between the miner and the mining pool, sending and receiving data to ensure that the mining process is continuous and efficient.

Types of Control Boards Used in Antminers

Different Antminer models utilize various types of control boards, each with unique features and capabilities tailored to specific mining needs.

  1. Xilinx 7007 Zync Control Boards: These control boards, such as the Ctrl_C41, Ctrl_C92, Ctrl_C87, and Ctrl_C99, are known for their reliability and performance. They use the Xilinx Zynq 7007 chip, which integrates a dual-core ARM Cortex-A9 processor and FPGA, providing a powerful and flexible solution for managing mining operations. These boards are commonly found in models like the Antminer S9, T9, S19, and L7.
  2. AMlogic A113D Control Boards: Found in newer models like the Antminer S19j Pro and S19 XP, the AMlogic A113D boards, such as the Ctrl_C76, offer high efficiency and advanced processing capabilities. These boards are equipped with the Amlogic A113D chip, primarily designed for multimedia processing but adapted for mining due to its robust performance.
  3. BeagleBone Control Boards: The BeagleBone boards, like the BB18, are used in various Antminer models such as the S19j and S19j Pro. These boards are based on the AM335x ARM Cortex-A8 processor, providing a balance of power and flexibility. They are popular in the mining community for their open-source nature and extensive support.

Understanding the specific control board used in your Antminer model is crucial for maintenance and upgrades. Each type has its firmware requirements and operational characteristics, which must be matched precisely to ensure optimal performance and longevity of your mining equipment.

Detailed List of Antminer Models and Compatible Control Boards

Antminer S9

Antminer T9

Antminer T9+

Antminer S17/S17 Pro

Antminer T17/T17+

Antminer S19/S19 Pro

Antminer S19j/S19j Pro

Antminer S19 XP

Antminer S19k Pro

Antminer L7

Antminer D7

Antminer E3

Antminer S9 Hydro

How to Replace Your Antminer Control Board

Replacing the control board in your Antminer is a straightforward process, but it requires careful handling to avoid damaging sensitive components. Follow this step-by-step guide to ensure a smooth replacement.

Step-by-Step Guide on Replacing a Control Board

  1. Preparation
    • Power Down the Miner: Turn off your Antminer and unplug it from the power source. This is crucial to prevent any electrical damage or personal injury.
    • Gather Tools: You will need a screwdriver, the new control board, and an anti-static wrist strap to protect the components from static electricity.
  2. Remove the Top Cover
    • Unscrew the Top Cover: Use a screwdriver to remove the screws securing the top cover of your Antminer. Set the screws aside in a safe place.
    • Lift the Cover: Carefully lift and remove the top cover to expose the internal components, including the control board.
  3. Disconnect the Old Control Board
    • Unplug All Cables: Carefully disconnect all cables attached to the old control board. This typically includes the 3x 18-pin signal cables, PSU power extension cable, voltage regulating cable, and 4x fan cables.
    • Remove the Screws: Unscrew the screws holding the control board in place. Keep these screws as you will need them to secure the new control board.
    • Remove the Board: Gently slide the old control board out of its slot.
  4. Install the New Control Board
    • Slide in the New Board: Align the new control board with the slot and carefully slide it into place.
    • Secure the Board: Use the screws removed earlier to secure the new control board in position.
    • Reconnect the Cables: Reattach all the cables to the new control board. Ensure each connection is secure and properly seated.
  5. Firmware Installation
    • Prepare the Firmware: Ensure you have the specific firmware for your model on an SD card or USB drive. Format the SD card to FAT32 if necessary.
    • Install the Firmware: Insert the SD card or USB drive into the control board. Follow the specific instructions for your control board model to load the firmware. This typically involves powering on the miner and waiting for the firmware to install.
    • Remove the SD Card/USB Drive: Once the firmware installation is complete, remove the SD card or USB drive and reboot the miner.
  6. Reassemble the Miner
    • Replace the Top Cover: Place the top cover back onto the miner and secure it with the screws.
    • Reconnect Power: Plug the miner back into the power source and turn it on. Ensure it starts up correctly and recognizes the new control board.

Replacing your Antminer control board can restore your miner’s performance and extend its lifespan. By following this guide, you can perform the replacement confidently and efficiently. If you encounter any issues, consult the manufacturer’s support resources or seek professional assistance.

Where to Buy Replacement Control Boards

Finding a reliable source for purchasing replacement control boards is essential to ensure the longevity and performance of your Antminer. Below are recommendations for reputable sources and tips on avoiding counterfeit or incompatible products.

Recommendations for Reputable Sources

  1. D-Central Technologies
    • Overview: D-Central Technologies offers a wide range of new and used control boards for various Antminer models. Known for their reliability and excellent customer service, D-Central is a trusted source for both individual miners and larger mining operations.
    • Advantages: Offers both new and used control boards, providing a range of affordable options. They also provide detailed product descriptions and compatibility information to help you make the right choice.
    • Website: D-Central Technologies
  2. Bitmain Official Store
    • Overview: Bitmain, the manufacturer of Antminer devices, offers replacement parts directly through their official store. Purchasing from Bitmain ensures you receive genuine and compatible parts.
    • Products Offered: A full range of control boards compatible with all Antminer models.
    • Advantages: Guaranteed compatibility and authenticity. Access to the latest firmware updates and support.
    • Website: Bitmain Official Store


Selecting the correct control board for your Antminer is crucial for maintaining the efficiency and longevity of your mining hardware. Using a compatible control board ensures that your miner operates at optimal performance levels, avoiding potential malfunctions and maximizing profitability.

This guide has provided a comprehensive list of Antminer models and their compatible control boards, simplifying the process of finding the right replacement part. Always refer back to the compatibility list when in doubt to ensure you choose the appropriate control board for your specific Antminer model.

For further assistance, don’t hesitate to contact our support team. We’re here to help you with any questions or issues you may encounter during the replacement process.

We encourage you to share this article with fellow miners to help them find the right control boards for their Antminers. Additionally, sign up for our newsletter to receive more mining tips and updates. Stay informed and keep your mining operations running smoothly with the latest insights and information.


What is the purpose of a control board in an Antminer?

A control board in an Antminer is the main component responsible for managing operations, coordinating ASIC chip functions, regulating power, controlling temperature, and ensuring efficient communication with mining pools. Without a functioning control board, an Antminer cannot mine cryptocurrency effectively.

How do I know which control board is compatible with my Antminer?

To determine which control board is compatible with your Antminer, you should first accurately identify your Antminer model by checking the model number on the device or its documentation. Then, refer to a compatibility list that outlines which control boards are suitable for each Antminer model.

What are some common control boards used in Antminers?

Common control boards used in Antminers include Xilinx 7007 Zync Control Boards (Ctrl_C41, Ctrl_C92, etc.), AMlogic A113D Control Boards (Ctrl_C76), and BeagleBone Control Boards (BB18), each tailored to specific models and their needs.

Where can I purchase replacement control boards for my Antminer?

Replacement control boards for Antminers can be purchased from reputable sources such as D-Central Technologies, known for reliable products and good customer service, and the Bitmain Official Store, which guarantees genuine parts for compatibility and performance.

What steps should I follow to replace the control board in my Antminer?

To replace the control board in your Antminer, power down the miner, gather necessary tools (screwdriver, anti-static wrist strap), remove the top cover, disconnect and remove the old control board, install the new board and reconnect cables, install firmware, and finally reassemble the miner.

How can I ensure a smooth replacement process for my Antminer’s control board?

To ensure a smooth replacement process, use an anti-static wrist strap, handle components carefully, ensure all connections are tight, follow firmware installation instructions precisely, and keep track of screws and parts during the replacement process.

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