BM1396 BM1396AB Replacement ASIC Chip for S17e T17e Hashboard

BM1396AB ASIC Chip for Antminer S17e / T17e Hashboard Repair

The BM1396AB is the hashing engine at the core of Bitmain's Antminer S17e and T17e generation. When one or more chips fail on a hashboard, the entire chain loses proportional hash rate — and in many cases the board drops offline completely. This brand-new, QC-tested replacement chip allows repair technicians to swap out defective units and bring the board back to full performance without replacing the entire hashboard assembly.

Diagnosing a Failed BM1396 Chip

A single defective BM1396 typically shows up in the miner's kernel log as a missing chip in the ASIC chain — for instance, "chain 1: found 57/60 chips" where three positions return no response. Using a test fixture with scanning capability, you can identify the exact physical location on the board. Before replacing the chip, verify that the surrounding voltage domain is healthy: measure the 0.4V core supply and the 1.8V I/O rail at the suspect chip position. A shorted chip will pull its local domain low, easily detected with a multimeter.

Replacement Procedure

Apply flux around the failed chip and use a hot-air station at 380-400°C with a focused nozzle to remove it. Clean the pads with solder wick and inspect under magnification for any lifted pads or bridged traces. Position the new BM1396AB with correct orientation (pin-1 dot aligned to silkscreen), apply fresh solder paste or use the appropriate tin stencil, and reflow at the recommended profile. Run the chip scan again to confirm the new chip registers in the chain, then perform a short hash test.

For higher-volume rework, pairing this chip with a dedicated BM1396 tin stencil ensures consistent solder-ball placement and reduces rework time per board from roughly 30 minutes to under 15.

BM1396AB Specifications

FAQ — BM1396 / BM1396AB ASIC Chip

Q: BM1396 vs BM1396AB — difference?
A: The suffix (no suffix vs AB) indicates production date code / sub-variant. The AB variant is the most common stocking SKU for S17e / T17e repair. Functionally identical for repair use — match silk marking when possible.

Q: How many BM1396AB chips per S17e hashboard?
A: Typically 60 chips per S17e hashboard. Use chip-scan diagnostic to identify specific failed positions before ordering quantities.

Q: Will it work on S17 / S17+ / S17 Pro?
A: No — those use different chip families (BM1397 family for S17 / S17+ / S17 Pro). BM1396 is specifically for the "e" variants (S17e / T17e). Confirm the chip silk marking on your board.

Q: Bulk pricing for S17e / T17e repair shops?
A: Yes — email contact@lys-sz.com with your monthly board rework volume for tier pricing on BM1396AB stock.

Related products

• BM1397 / BM1397AG ASIC Chip – Antminer S17 / T17
• BM1362AI ASIC Chip – Antminer S19j / S19j Pro
• NCT218 Temp Sensor – S17+ / S17e / L7
• Antminer ZYNQ 7007 C55 Control Board – S17 / S19 / T17 / L7

S17e / T17e repair shops stocking BM1396AB by the reel? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouses.