Test Fixture Whatsminer M20 M21 M30 M31 series ASIC KF1920 KF1921 KF1930 Repair tools Pair it with a hot-air

Pair it with a hot-air station

connect the primary harness to the hashboard power bus and the secondary to the control board

Model A15 V1

FAQ — Goldshell AP280 Power Supply

Test Fixture Whatsminer M20 M21 M30 M31 series ASIC KF1920 KF1921 KF1930 Repair tools Pair it with a hot-airWhatsminer Test Fixture Faulty Chip Scanner for M20, M21, M30 & M31 Series Hashboards This ASIC test fixture is built for the Whatsminer M20, M20S, M21, M21S, M30, M30S, M31 and M31S families, enabling technicians to scan hashboards and pinpoint defective KF1920, KF1921 and KF1930 chips without powering the full miner. By identifying the exact chip position that has failed, you can target your repair precisely replacing only the faulty component