How to identify your Antminer control board (AML, XIL, CV, BB)

The firmware file differs per control board; here is how to tell Amlogic, Xilinx, CVITEK and BeagleBone apart.

Amlogic (AML): Amlogic A113D chip near the SD slot, AML marking on the sticker. Common on S19/S21 series.

Xilinx (XIL): large Xilinx Zynq chip in the board center, XIL marking. The most common S19 board.

CVITEK (CV): CVITEK CV1835 chip, CV marking. Typical for L9, T21 and 2024+ boards.

BeagleBone (BB): a separate BeagleBone daughter-board plugged into the base board. The Firmware Doctor shows a diagram of each so you can match the chip you see.

Install firmware