BM1368PB ASIC Chip for Antminer S21 T21 S21hyd Hashboard Repair
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BM1368PB ASIC Chip – Antminer S21 / T21 / S21 Hydro Hashboard Replacement
The BM1368PB is the Bitmain ASIC hashing chip used on the Antminer S21, T21 and S21 Hydro hashboards. When one or more chips fail, the affected positions drop out of the hash chain and the board's total hash rate decreases proportionally. This is a new original BM1368PB chip — direct BGA replacement that restores the failed position's hash rate contribution. Not a pull or remark.
When to Replace a BM1368PB Chip
The miner's ASIC status page shows each chip's health. A failed BM1368PB appears as a missing position, an error flag or abnormally low hash rate at that slot. Common causes include thermal degradation from sustained operation, solder joint fatigue under thermal cycling, and electromigration in the chip's internal power rails. Replacing the failed chip with fresh solder paste and reflowing restores normal operation at that position.
Replacement Procedure
Remove the hashboard and identify the failed chip from the miner log. Preheat to 150–180°C, apply flux and remove the chip with hot air at 350–400°C. Clean pads with solder wick. Apply solder paste using a BM1368 stencil, place the new chip with pin 1 aligned and reflow. Verify the chip appears in the hash chain and reports normal hash rate in the dashboard.
BM1368PB ASIC Chip Specifications
| Parameter | Value |
|---|---|
| Part Number | BM1368PB |
| Manufacturer | Bitmain |
| Compatible Miners | Antminer S21, T21, S21 Hydro |
| Mounting | BGA |
| Condition | New (original) |
Related Antminer S21 / T21 ASIC Chips & Tools
- BM1368AA ASIC Chip – S21 / T21 / S21 Hydro
- BM1368 ASIC Tester – S21 / T21 Hashboard Repair
- BM1368PA / BM1368PB Stencil – S21 / T21 Hydro
- Universal Hashboard Test Fixture – S21 / T21
Repairing S21/T21 hashboards? Contact us at contact@lys-sz.com for BM1368 chips, stencils and volume pricing.
Worldwide shipping from our Shenzhen warehouse.
Shipping & Customs
🇺🇸🇪🇺 USA & European Union (DDP):
Orders are delivered DDP (Delivered Duty Paid). All customs duties, import taxes, and fees are included — no additional charges on delivery.
🌍 Rest of world:
Orders ship from China. Depending on your country, local customs authorities may apply import duties or taxes. Any such fees are set by your local authorities and are not included in the product price.
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