Avalon 1346 ASIC chip A3200CFA replacement tutorial

The A3200CFA ASIC chip is suitable for replacing the failed chip on the Avalonminer 1346 hash board, helping the miner resume normal operation. In addition, other A3200C series ASIC chips, such as the A3200CMA and A3200CMCV3 chips, can also be used in Avalon A1346 hash boards.

The ASIC chip is one of the core components that runs the Avalon 1346 miner. Once the ASIC chip fails, the miner's performance will be affected, resulting in low hash rate or 0 hash rate. It may even lead to unstable operation of the miner, frequent restarts, crashes and other failures. This will not only reduce the mining efficiency of the miner, but may also damage other components and shorten the service life of the miner. Therefore, when the ASIC chip fails, please immediately replace it with a new backup chip. It can quickly restore the normal hash rate and avoid causing greater losses.

Taking the A3200CFA chip as an example, we can easily replace the Avalon hash board ASIC chip by following these steps:

1. Disassemble the miner, remove the faulty hash board and place it on an anti-static insulating mat, and take out the heat sink on the board.

2. Use the Avalon chip test fixture to quickly locate the faulty chip, and use circuit board cleaner to clean around the faulty chip.

3. Apply an appropriate amount of flux on the faulty ASIC chip pins, and set the constant temperature heating platform at around 300°C. After reaching the preset temp, place the faulty area of the hash board on a heating platform for desoldering. When we see the tin on the chip pins starting to melt, use tweezers to gently hold the chip, lift and remove it.

4. Move the hash board to an antistatic insulating pad and cool it with a cooling fan, then use circuit board cleaner to remove the solder slag on the hash board.

5. Use the chip tin tool to evenly tin the new A3200CFA ASIC chip. For specific instructions, please click to view the "How to use the tin tool?"

6. Add a small amount of flux to the chip pad (If the pad has insufficient tin, we also need to add a small amount of solder paste to tin it).

7. After the heating platform is preheated to 300°C, place the faulty area of the hash board on the platform and heat it until the tin on the pad melts, and align the A3200CFA chip pins with the pad. Continue heating until the solder paste coats the chip leads. Use tweezers to lightly press the surface of the chip for a few seconds to avoid false soldering. Then move the hash board to an anti-static insulating pad to cool while we clean the hash board with circuit board cleaner.

8. Use a multimeter to check whether the soldering of the chip is qualified. And use the test fixture to detect the status of the board. If the test result is normal, the chip replacement is successful.

9. Apply thermal grease evenly on the surface of the chip, install the heat sink, and then put the hash board back into the chassis.

10. Power on the whole machine and test it.

As miners operate for extended periods of time, ASIC chips inevitably become worn or damaged. Replace the faulty ASIC chip in time to restore the stable operation of the Avalon 1346 miner and obtain more lasting mining benefits.