Tutorial for replacing the Whatsminer M50 KF1969 ASIC chip

The Whatsminer M50 ASIC chip KF1969 can be used to replace damaged chips on hash boards. It is an essential component for miner hash boards.

When the KF1969 ASIC chip malfunctions, miners will experience 0 or low hash rates, affecting their stable operation and profitability. In such cases, it is recommended to use a test jig to identify and replace the faulty chip to ensure the stable operation of the miner.

How to replace the KF1969 ASIC chip?

1. Disassemble the miner, take out the faulty hash board, and place it on an anti-static insulation pad. Remove the heatsink from the hash board.

2. Use a test fixture to quickly locate the faulty chip, then clean the area around it with circuit board cleaner.

3. Apply a moderate amount of flux around the faulty chip's pins. Set a constant-temperature heating platform to approximately 300℃ for preheating. Once the set temp is reached, place the hash board on the platform to heat it. Click here to view the usage of the constant-temperature heating platform.

4. When you see the tin on the chip's pins start to melt, gently grip the chip with a tweezer and remove it.

5. Cool the hash board with a cooling fan and clean the area where the faulty chip was located.

6. The new chip's soldering surface is without tin, so use a tin tool to evenly apply tin to the surface of the new Whatsminer M50 ASIC chip. If you are unsure how to operate, refer to How to use an ASIC chip tin tool?

7. Apply flux to the solder pads (add a small amount of tin if the pads have little tin). Heat the KF1969 chip's solder pads using the heating platform until the solder melts. Align the chip's pins with the hash board pads, and continue heating until the solder wraps around the chip's pins, completing the soldering process.

8. After cooling the hash board with a cooling fan again, clean the residue on the hash board.

9. Use a multimeter to test the ground value of the chip's signals to ensure good soldering. Use a test jig to check the status of the single board to ensure the ASIC chip has been successfully replaced.

10. Evenly apply thermal grease to the chip's surface and install the heatsink.

11. Place the hash board back in the miner box, power on the miner, and conduct a running test on the miner to observe its normal operation.

ASIC chips are the core components of Whatsminer miners, responsible for the entire miner's hash rate. Promptly replacing faulty Whatsminer M50 KF1969 ASIC chips can reduce downtime, restore the miner's hash rate, avoid mining efficiency losses, and thus ensure profitability.