BM1366AG ASIC Chip for Antminer S19XP Hashboard Repair
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BM1366AG ASIC Chip – Antminer S19XP Hashboard Repair
The BM1366AG is the Bitmain SHA-256 ASIC chip deployed on Antminer S19XP hashboards. It is the production silicon Bitmain shipped in the S19XP / S19 XP Hyd generation, and we source it original and brand new from our supply chain. When a hashboard reports dead chips on the BM1366 test fixture or in the kernel log, replacing the failed BM1366AG at the flagged position is the standard repair, and done correctly the hashboard returns to nominal hashrate without any further intervention on the rest of the chain.
BM1366AG on the S19XP Hashboard
S19XP hashboards run a chain of BM1366AG chips wired in series across multiple voltage domains. Failure of a single chip breaks the chain and takes the whole domain offline in the kernel log. Multiple dead chips spread across different domains usually indicates a thermal event or a power-rail fault rather than chip-level failure — worth checking the buck converter, cooling and inrush thermistor before swapping silicon. The standard ops flow: read the failed positions from the kernel log or the BM1366 test fixture, isolate the board, rework the suspect chip(s), and re-test on the fixture before sending the board back to the miner.
Replacement Procedure
Pre-heat the hashboard to 130-150°C with an IR pre-heater. Use a hot-air rework station at 340-360°C with a small nozzle to lift the failed BM1366AG — protect adjacent passives and neighbouring chips with kapton tape. Clean the pads with flux and braid, lay down fresh paste matching the S19XP board's solder process, place the new BM1366AG with vacuum tweezers respecting the orientation mark, and re-flow. Verify the swap on the BM1366 series test fixture before reinstalling the hashboard.
BM1366AG Specifications
| Parameter | Value |
|---|---|
| Part Number | BM1366AG (Bitmain original) |
| Algorithm | SHA-256 (Bitcoin) |
| Compatible Hashboards | Antminer S19XP, S19 XP Hyd |
| Configuration | Series chain across multiple voltage domains |
| Soldering | Hot-air re-flow, ~340-360°C with hashboard pre-heat |
| Test Fixture | BM1366 series ASIC tester |
| Origin | Original Bitmain silicon |
| Condition | Brand new |
Related BM1366 / S19XP Hashboard Repair Parts
- Antminer BM1366 ASIC Chip Test Fixture – S19XP / S19K Pro
- Antminer S19XP Tin Template – Hashboard Stencil
- SGM8304 Voltage Amplifier Module – S19XP / S21
- DIO7910A12ST5 1.2V LDO – Antminer S19XP Hashboard
Repairing S19XP hashboards in volume? Contact us at contact@lys-sz.com for tray-quantity BM1366AG pricing. Worldwide shipping from our Shenzhen warehouse.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
