Description
The Bitmain BM1370PA is a bare SHA-256 mining ASIC for advanced repair and open-hardware Bitcoin-miner builds. The package marking on the inventory shown in this listing is BM1370PA. It belongs to the BM1370 family used by Bitaxe Gamma-class and compatible Nerdaxe designs.
BM1370PA Product Details
| Specification | Details |
|---|---|
| Manufacturer | Bitmain |
| Package marking / MPN | BM1370PA |
| ASIC family | BM1370 |
| Algorithm | SHA-256 |
| Component format | Bare surface-mount ASIC chip |
| Installation level | Advanced board-level rework |
| Sold as | One individual chip, not a reel and not a complete miner |
| Ships from | Conroe, Texas, USA |
Compatibility: Match the Board, Not Just the Miner Name
Official open-hardware files identify BM1370 as the ASIC family used by the Bitaxe Gamma and related designs. They also state that BM1370 has a different footprint and pinout from earlier Bitaxe ASIC generations. Before ordering for repair, compare the exact PCB revision, schematic/BOM, installed-chip marking, orientation, and land pattern.
| Board family | BM1370 configuration | What to verify |
|---|---|---|
| Bitaxe Gamma 600 series | One BM1370 | Board revision, footprint, chip orientation, and the failure diagnosis. |
| Bitaxe Gamma Duo 650 | Two BM1370-family ASICs | Exact Duo PCB revision and which ASIC position requires service. |
| Bitaxe GT 800 series | Two BM1370 ASICs | Exact hardware revision, placement, and board-specific assembly files. |
| Nerdaxe Gamma | One BM1370 | Nerdaxe Gamma branch/revision, footprint, and orientation. |
| NerdQaxe++ | Four BM1370 ASICs | Exact NerdQaxe++ revision, failed chip position, and surrounding power/clock chain. |
Not compatible merely because a board is called Bitaxe or Nerdaxe: older Max, Ultra, Supra, Nerdaxe Ultra, and NerdQaxe+ designs use different ASIC families and layouts. The newer Naja Duo uses BM1373 ASICs and should not be treated as a BM1370 replacement target.
Performance Depends on the Complete Miner
A bare ASIC has no standalone hashrate. The official Bitaxe Gamma project uses one BM1370 and discusses approximately 1.2 TH/s as a board-level design reference. Actual hashrate, efficiency, stability, temperature, and tuning range depend on silicon variation, PCB power delivery, clocking, firmware, voltage, cooling, mounting, and ambient conditions. This listing does not guarantee a particular TH/s or J/TH result from an individual component.
Before Installation
- Confirm the existing chip and replacement are the same required BM1370 variant for the exact board revision.
- Diagnose the miner first. Power delivery, clocks, solder joints, temperature sensing, firmware, or another ASIC in the chain can produce similar symptoms.
- Use ESD-safe handling and keep the component protected until the technician is ready to install it.
- Record package orientation and board markings before removing the old component.
- Use the PCB designer’s current assembly files and a controlled process appropriate for the board and component. Do not rely on a generic temperature recipe.
- Inspect alignment and joints before power-up, then test initially at the board’s stock settings with proper cooling.
Installation is an irreversible electronic-component process and may affect return or warranty eligibility. Inspect the unopened component and review the Solo Satoshi refund, return, and warranty policy before soldering or reflow work.
Open-Source Hardware References
- Official Bitaxe Gamma hardware repository: schematic, PCB, manufacturing files, assembly notes, and BM1370 design context.
- Nerdaxe Gamma hardware branch: BM1370 Nerdaxe board files and build information.
- NerdQaxe++ hardware files: four-chip BM1370 board design, BOM, and revision files.
These repositories document compatible board families; Bitmain’s ASIC itself is proprietary and does not have a public component datasheet in those repositories.
What’s Included
- 1 × Bitmain BM1370PA ASIC chip
Not included: PCB, miner, stencil, solder, heatsink, fan, power supply, firmware, or installation service.
Helpful Guides and Compatible Hardware
Bitaxe Gamma 602
Single-chip BM1370 miner and the clearest reference platform for this ASIC family.
Bitaxe GT 801
Dual-BM1370 miner; verify the exact PCB revision and placement before component work.
Nerdaxe Gamma
Single-chip BM1370 Nerdaxe design with its own board layout and firmware target.
NerdQaxe++
Four-chip BM1370 platform; match the board revision and diagnose the failed position first.
Bitaxe Maintenance and Care
Start with cleaning, cooling, connections, and basic diagnostics before considering chip replacement.
The ASIC Silicon Lottery
Learn why frequency, voltage, efficiency, and stability vary from chip to chip.
Is this chip marked BM1370PA or BM1370BC?
Is the BM1370PA a complete Bitcoin miner?
Is it a drop-in replacement?
Which open-source miners use the BM1370 family?
Will it upgrade a Bitaxe Max, Ultra, or Supra?
Will it fit the Naja Duo?
How much hashrate does one BM1370PA produce?
Does this purchase include a full reel?
Can I install it with a normal soldering iron?
Do you provide a generic reflow temperature profile?
What should I diagnose before replacing the ASIC?
Can I return the chip after soldering or reflow?
What is included in the package?
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