BM1368AA ASIC Chip for Antminer S21 T21 S21hyd Hash Board Repair

BM1368AA ASIC Chip | Replacement IC for Antminer S21 / T21 / S21hyd Hashboard Repair

The BM1368AA is the hashing ASIC chip used on Antminer S21, T21 and S21hyd hashboards. Each chip is a single point in the serial chain that runs the length of the hashboard — when one chip fails, the chain reports incomplete and the board drops to a low or zero hashrate. Swap the failed chip out, reflow the chain, and the board returns to normal duty.

Direct drop-in replacement — same package, same pinout, same electrical envelope as the chip originally fitted at the factory. Stocked for repair shops servicing S21 / T21 / S21hyd fleets and individual miners replacing failed chips at the bench. Inventory on this part can be unstable — please confirm availability before ordering by emailing contact@lys-sz.com.

When to Replace the BM1368AA

• Hashboard reports low or zero hashrate — chip chain incomplete on one board while other boards run normally.
• Chip count mismatch in chain scan — diagnostic tool flags the failing position along the BM1368AA chain.
• Visible damage on a chip — burnt, cracked or delaminated package after a thermal or transient event.
• Single-board failure after a known fault event — short, power surge or coolant intrusion likely killed one or more chips along the chain.
• Hashrate refurbishment on used S21 / T21 fleets — replace the marginal chips identified at intake before redeploying the miner.

BM1368AA ASIC Chip Specifications

FAQ — BM1368AA Repair

Q: How do I know which chip in the chain has failed?
A: Run the chain on a hashboard test fixture — the tool reports the position of the first failing chip along the chain. Without the fixture, visual inspection at the microscope plus continuity testing along the chain locates most failures.

Q: Do I need a specific stencil for BM1368AA reflow?
A: Yes — use the dedicated BM1368 chip tin stencil and holder for accurate paste deposition. Generic stencils don't match the pad geometry.

Q: Bulk pricing for repair shops?
A: Yes — email contact@lys-sz.com with your typical monthly volume and we'll send tier pricing for tray or tube quantities.

Q: Is the BM1368AA interchangeable with BM1368PA or BM1368PB variants?
A: Not always — sub-variants can differ in binning, packaging revision or hashboard PCB compatibility. Match the part number stamped on the failed chip before ordering.

Related products

• Antminer BM1368PA / BM1368PB ASIC Stencil – S21 / T21 / Hydro
• Antminer BM1368PB Chip Tin Tool – S21 Hashboard
• BM1368 ASIC Tester – Antminer S21XP / S21 / T21 Hashboard
• Antminer BM1366 ASIC Chip Test Fixture – S19XP / S19K Pro

Repair shops sourcing BM1368AA chips by the tray? Email contact@lys-sz.com for bulk pricing and live inventory confirmation. Worldwide shipping from our Shenzhen warehouse.