S19a S19a Pro hash board replacement chip

The BM1398AD chip is suitable for Antminer S19a S19a Pro. Its BM1398AD plays the role of calculation during the operation of the miner. When one or more ASIC chips fail, the miner's hash rate will be lower than the normal hash rate. At this time, it is recommended that you use the test fixture to detect the faulty chip, then replace it; the hash board can restore the normal hash rate.