Description
NerdOCTAxe Rev 3.1 12TH/s Open-Source Bitcoin Miner
The NerdOCTAxe Rev 3.1 is a compact, open-source SHA-256 Bitcoin miner designed for home miners, solo-mining enthusiasts, developers, hobbyists, and users who want to experiment with modern ASIC hardware without installing a full-size industrial machine. This configuration delivers up to 12TH/s while drawing approximately 240W at the wall.
Built around eight Bitmain BM1370-series ASIC chips, the NerdOCTAxe Rev 3.1 offers substantially more hashrate than a single-chip Bitaxe-style miner while retaining the transparent, customizable approach of the open-source mining community. Its calculated efficiency is approximately 20J/TH when operating at 12TH/s and 240W.
The NerdOCTAxe Rev 3.1 can connect to a conventional Bitcoin mining pool or a solo-mining pool. However, solo mining is probabilistic. A 12TH/s miner may run for a very long time without finding a Bitcoin block, so it should never be marketed as producing guaranteed passive income.
Unlike industrial ASIC miners that consume several kilowatts, this desktop miner can be operated from a correctly rated low-voltage power supply. It still produces heat and fan noise, so proper ventilation, stable power, firmware monitoring, and realistic profitability expectations remain important.
Browse additional equipment in our ASIC miner collection, or explore more Bitcoin mining hardware available from Hash Titans.
NerdOCTAxe Rev 3.1 Key Features
The NerdOCTAxe Rev 3.1 is intended for miners who value open-source control, compact size, low power demand, and hands-on configuration. It is especially suited to educational setups, home labs, solo-mining experiments, and users who want to contribute hashrate without operating a large industrial ASIC.
- Project family: NerdOCTAxe Gamma
- Model: Rev 3.1
- Mining algorithm: SHA-256
- Configured hashrate: Up to 12TH/s
- Configured power consumption: Approximately 240W
- Calculated efficiency: Approximately 20J/TH
- ASIC chip family: Bitmain BM1370 series
- ASIC chip count: 8
- Cooling system: Active air cooling
- Cooling fans: Commonly configured with 2 fans
- Seller-listed noise: Approximately 40–50dB
- Connectivity: Wi-Fi or Ethernet depending on controller and seller configuration
- Firmware family: Open-source ESP-Miner or AxeOS-derived software
- Primary cryptocurrency: Bitcoin
- Mining modes: Standard pool mining or solo-pool mining
- Operating environment: Ventilated indoor installation
- Warranty: Determined by the individual seller or builder
NerdOCTAxe Rev 3.1 Specifications
| Product | NerdOCTAxe Rev 3.1 |
|---|---|
| Project type | Open-source desktop Bitcoin miner |
| Mining algorithm | SHA-256 |
| Configured hashrate | Up to 12TH/s |
| Configured power consumption | Approximately 240W |
| Calculated power efficiency | Approximately 20J/TH |
| ASIC chip name | BM1370 series |
| ASIC chip count | 8 |
| Cooling method | Active air cooling |
| Fan count | Commonly 2, depending on enclosure |
| Seller-listed noise | Approximately 40–50dB, depending on fans and tuning |
| Connectivity | Wi-Fi or Ethernet depending on controller configuration |
| Controller | ESP32-family controller, depending on build |
| Firmware | Open-source ESP-Miner or AxeOS-derived firmware |
| Seller-listed temperature | Approximately 0°C to 40°C |
| Seller-listed humidity | Up to 95%, non-condensing |
| Warranty | Seller-specific; no universal manufacturer warranty |
| Primary supported network | Bitcoin and compatible SHA-256 networks |
Configuration note: The NerdOCTAxe Rev 3.1 is an open-source project that can be assembled and sold by different builders. Power supplies, fans, heatsinks, controllers, enclosures, firmware versions, connectivity, and performance tuning may differ between units.
This page uses the supplied 12TH/s and 240W configuration. Some sellers offer similar versions around 200W, while heavily tuned or overclocked versions may approach the limits of a 240W power supply.
NerdOCTAxe Rev 3.1 Mining Overview
Algorithm
SHA-256
Hashrate
Up to 12TH/s
Power Consumption
Approximately 240W
NerdOCTAxe Rev 3.1 Bitcoin Mining Performance
The NerdOCTAxe Rev 3.1 combines eight BM1370-series chips to produce up to 12TH/s in the configuration described here. Actual performance can vary according to ASIC quality, chip frequency, voltage, firmware, power-supply capacity, fan speed, ambient temperature, and cooling quality.
Users should monitor average hashrate rather than relying on short dashboard peaks. Pool-side accepted hashrate may fluctuate significantly over short periods because a relatively small miner submits shares less frequently than a large industrial ASIC.
Important performance indicators include:
- Average hashrate
- Accepted and rejected shares
- ASIC frequency
- ASIC voltage
- Chip temperature
- Voltage-regulator temperature
- Fan speed
- Measured wall power
- Pool latency
- Wi-Fi or Ethernet stability
A lower-than-expected hashrate may be caused by thermal throttling, insufficient voltage, an undersized power supply, unstable firmware settings, a weak wireless connection, chip errors, or poor pool connectivity.
NerdOCTAxe Rev 3.1 20J/TH Efficiency
Dividing 240W by 12TH/s gives the NerdOCTAxe Rev 3.1 a calculated efficiency of approximately 20J/TH.
At a continuous 240W load, estimated electricity use is:
- 5.76kWh per day
- 40.32kWh per week
- 172.8kWh per 30-day month
- 2,102.4kWh per year
Estimated monthly electricity costs are:
- At $0.05/kWh: approximately $8.64
- At $0.08/kWh: approximately $13.82
- At $0.10/kWh: approximately $17.28
- At $0.15/kWh: approximately $25.92
- At $0.20/kWh: approximately $34.56
- At $0.30/kWh: approximately $51.84
Actual wall consumption should be measured with a suitable power meter. PSU conversion losses, fan power, firmware settings, overclocking, and voltage tuning can change total consumption.
Mining profitability is not guaranteed. Bitcoin price, network difficulty, block rewards, pool fees, electricity rates, hardware cost, cooling, downtime, and luck all affect financial results.
NerdOCTAxe Rev 3.1 Cooling and Noise
The NerdOCTAxe Rev 3.1 normally uses two active cooling fans and substantial heatsinks to remove heat from its eight BM1370-series chips. Cooling quality is essential because compact open-source miners can be heavily affected by chip temperature and voltage-regulator temperature.
Current seller claims range from approximately 40dB to 50dB. Actual noise depends on the fan model, fan curve, enclosure, chip frequency, ambient temperature, and power tuning.
Cooling Recommendations
- Keep both intake and exhaust areas unobstructed.
- Do not operate the miner inside a sealed cabinet.
- Place it on a stable, heat-resistant surface.
- Keep dust away from fans and heatsinks.
- Monitor ASIC and regulator temperatures.
- Reduce frequency or voltage if temperatures become unsafe.
- Replace failed fans immediately.
- Avoid operating near curtains, bedding, paper, or other flammable materials.
The miner converts nearly all of its electrical consumption into heat. At 240W, the thermal output is manageable compared with industrial ASICs, but it can still warm a small room during continuous use.
NerdOCTAxe Rev 3.1 Solo Mining vs Pool Mining
The NerdOCTAxe Rev 3.1 can be configured for conventional pool mining or solo-pool mining. These approaches have very different payout patterns.
Standard Pool Mining
In ordinary pool mining, the miner contributes shares to a pool and receives small payouts according to the pool’s reward method, fees, minimum threshold, and accepted hashrate.
Solo-Pool Mining
With solo-pool mining, the miner attempts to discover a valid Bitcoin block. A successful block can produce a large reward, but the chance of finding one with 12TH/s is extremely small and unpredictable.
Calling the NerdOCTAxe Rev 3.1 a “lottery miner” describes this probability-based use case. It does not mean the hardware improves the mathematical odds beyond the hashrate it contributes.
Users should never purchase the miner based on a promise that it will find a block or repay its cost within a fixed period.
Mineable Coins with NerdOCTAxe Rev 3.1
Bitcoin
Bitcoin is the primary cryptocurrency mined by the NerdOCTAxe Rev 3.1. The device performs SHA-256 calculations and submits valid shares to a compatible pool.
Other technically compatible SHA-256 networks may include Bitcoin Cash, Fractal Bitcoin, eCash, Bitcoin SV, and Peercoin where compatible pool and wallet support are available.
Before switching networks, compare mining difficulty, block rewards, expected revenue, pool support, payout thresholds, wallet compatibility, and market liquidity.
For general information about the Bitcoin network, review the official Bitcoin educational resources.
NerdOCTAxe Rev 3.1 Setup Guide
- Inspect the miner, power supply, cable, fans, heatsinks, and controller.
- Confirm that the supplied PSU is correctly rated for the unit.
- Place the miner on a stable, ventilated surface.
- Connect Ethernet where supported or prepare a 2.4GHz Wi-Fi network.
- Connect the approved low-voltage power supply.
- Power on the miner.
- Open the setup hotspot or locate the miner on the local network.
- Enter the Wi-Fi credentials where required.
- Open the miner’s web interface.
- Change default credentials where supported.
- Enter the mining-pool Stratum address.
- Add the worker name and password.
- Enter a valid Bitcoin payout address where required.
- Save the settings and restart the miner if requested.
- Monitor hashrate, chip temperature, fan speed, and accepted shares.
Start with conservative frequency and voltage settings. Confirm stable temperatures and hashrate before attempting any manual tuning.
NerdOCTAxe Rev 3.1 Firmware and Open-Source Design
The NerdOCTAxe Rev 3.1 belongs to the open-source NerdAxe, NerdQaxe, Bitaxe, and ESP-Miner ecosystem. This gives technically experienced users access to firmware updates, configuration tools, source code, hardware files, and community development.
The open-source design provides flexibility, but it also means users must be careful when selecting firmware. Installing a binary intended for another board revision may cause instability or make the device temporarily unusable.
- Confirm the exact board revision before flashing.
- Back up pool and tuning settings.
- Use firmware from a trusted project repository.
- Read release notes before upgrading.
- Do not interrupt power during flashing.
- Return to safe default settings after unstable overclocking.
Review the NerdOCTAxe Gamma hardware repository and the ESP-Miner NerdAxe firmware repository for open-source technical information.
NerdOCTAxe Rev 3.1 Maintenance
Routine maintenance helps the NerdOCTAxe Rev 3.1 maintain stable temperatures, reliable shares, and consistent power delivery.
- Check chip and regulator temperatures regularly.
- Review fan speed and listen for bearing noise.
- Remove dust from fans and heatsinks.
- Inspect the power connector for discoloration or heat damage.
- Check the PSU cable and terminals.
- Compare dashboard and pool-side hashrate.
- Review rejected shares and hardware errors.
- Keep firmware current when stable releases are available.
- Record tuning settings before making changes.
- Disconnect power before cleaning or servicing.
Do not spray liquid cleaners onto the circuit board. Use controlled compressed air and a soft antistatic brush where appropriate. Hold fan blades in place while cleaning to prevent uncontrolled spinning.
Why Choose the NerdOCTAxe Rev 3.1?
The NerdOCTAxe Rev 3.1 may suit Bitcoin enthusiasts who want a powerful open-source home miner without the electricity, noise, and heat output of a full-size industrial ASIC.
- Up to 12TH/s SHA-256 output
- Approximately 240W power consumption
- Approximately 20J/TH calculated efficiency
- Eight BM1370-series ASIC chips
- Open-source hardware platform
- Open-source firmware ecosystem
- Pool and solo-pool compatibility
- Compact desktop design
- Active dual-fan cooling
- Lower power demand than industrial ASIC miners
- Suitable for learning and experimentation
The main limitations are uncertain solo-mining rewards, seller-dependent warranty coverage, configuration differences, Wi-Fi or Ethernet variation, and the technical knowledge required for firmware and performance tuning.
Browse more Bitcoin ASIC miners to compare the NerdOCTAxe Rev 3.1 with other home miners and professional SHA-256 machines.
NerdOCTAxe Rev 3.1 Frequently Asked Questions
What is the NerdOCTAxe Rev 3.1?
The NerdOCTAxe Rev 3.1 is an open-source desktop SHA-256 Bitcoin miner built around eight BM1370-series ASIC chips.
What is its hashrate?
The configuration described on this page is rated at up to 12TH/s.
How much power does it consume?
The supplied configuration consumes approximately 240W.
What is its calculated efficiency?
At 12TH/s and 240W, efficiency is approximately 20J/TH.
How many ASIC chips does it use?
It uses eight BM1370-series ASIC chips.
Which algorithm does it mine?
It operates on the SHA-256 algorithm.
Can it mine Bitcoin?
Yes. Bitcoin is its primary supported cryptocurrency.
Can it mine Bitcoin Cash?
Yes, through a compatible SHA-256 mining pool.
Is it a solo miner?
It can connect to a solo-mining pool, but it can also perform ordinary pool mining.
Will it find a Bitcoin block?
It is technically possible, but the probability is extremely low and no successful block discovery is guaranteed.
Does it use Wi-Fi or Ethernet?
This varies by controller and seller configuration. Confirm the connectivity on the exact unit before ordering.
How loud is it?
Current seller estimates commonly range from approximately 40dB to 50dB, depending on fan type and tuning.
Can it run continuously?
It can run continuously when supplied with stable power, adequate cooling, safe temperatures, and stable firmware settings.
Can the NerdOCTAxe Rev 3.1 be overclocked?
Many open-source firmware builds support frequency and voltage adjustment, but overclocking increases heat, power consumption, and hardware risk.
How much electricity does it use daily?
At 240W, continuous operation consumes approximately 5.76kWh every 24 hours.
Does it include a universal warranty?
No. Warranty and replacement coverage depend on the seller or builder.
Is it suitable for beginners?
Basic pool setup can be straightforward, but firmware flashing, tuning, cooling adjustments, and troubleshooting require technical care.
Is the NerdOCTAxe Rev 3.1 profitable?
Profitability is not guaranteed. It depends on Bitcoin price, network difficulty, pool fees, electricity costs, hardware price, uptime, and whether the miner is used for pool or solo mining.
Buy NerdOCTAxe Rev 3.1 Bitcoin Mining Hardware
The NerdOCTAxe Rev 3.1 delivers up to 12TH/s of SHA-256 mining performance from eight BM1370-series chips while consuming approximately 240W in this configuration. Its open-source design, compact footprint, configurable firmware, and pool-mining support make it an interesting option for home miners and Bitcoin hardware enthusiasts.
Before ordering, confirm the exact power supply, connectivity, firmware version, fan configuration, enclosure, dimensions, warranty conditions, and sustained hashrate. Visit Hash Titans to compare the NerdOCTAxe Rev 3.1 with other home and professional Bitcoin mining machines.
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