OSMU Bitaxe Gamma 603 Solo Bitcoin Miner · 1.5 TH/s

More hashrate. Better thermals. Whisper-quiet mining. Meet the next generation of Bitaxe Gamma.

The Bitaxe Gamma 603 takes open-source Bitcoin mining to the next level. Delivering approximately 1.54 TH/s straight out of the box, it combines improved thermal engineering, more cooling capacity, and carefully tuned hardware to achieve higher sustained performance without turning your desk into a noisy mining operation.

But the Gamma 603 is not simply a Gamma 602 with a higher clock speed. Its cooling architecture has been substantially reworked around the demands of the BM1370 ASIC, allowing the miner to maintain higher operating frequencies while managing heat more effectively.

The result is a more capable, thermally optimized desktop miner designed for stable 24/7 operation, low noise, and genuine solo mining.

Like its predecessor, the Gamma 603 supports Bitcoin (BTC), Bitcoin Cash (BCH), and other cryptocurrencies using the SHA-256 algorithm.

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🚀 What is the Bitaxe Gamma 603?

The Bitaxe Gamma 603 is a compact, fully open-source SHA-256 ASIC miner powered by a factory-new BM1370 chip, the same ASIC generation used in the Bitmain Antminer S21 Pro.

Manufactured and assembled in Germany, the Gamma 603 builds on the proven Bitaxe platform with significant improvements to its cooling system, factory tuning, and overall operating performance.

With a factory configuration of 750 MHz at 1250 mV, it delivers approximately 1.54 TH/s without requiring manual overclocking or aftermarket cooling upgrades.

Everything runs on a compact desktop board with integrated WiFi, a removable OLED display, and the familiar AxeOS web interface.

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❄️ More than an upgrade. A serious rethink of thermal performance.

The biggest improvement in the Gamma 603 isn't just its higher hashrate. It's how that performance is achieved and sustained.

Higher clock speeds mean more heat, and managing that heat is one of the biggest challenges with compact ASIC miners. Simply increasing frequency on an older design can result in higher temperatures, increased fan noise, and reduced stability.

The Gamma 603 approaches this differently, with a substantially upgraded thermal solution designed to handle its higher factory operating frequency.

At the centre of this redesign is the Copperzilla 2.0 cooling system, supplied as standard in a matte-black aluminium configuration.

Its significantly larger heatsink provides more surface area for heat dissipation, helping transfer heat away from the BM1370 ASIC and into the surrounding airflow more effectively.

This improved thermal capacity allows the Gamma 603 to operate at its higher factory tuning while maintaining better control over temperatures and fan demands.

• Substantially improved cooling: A larger, more capable heatsink replaces the limitations of the earlier standard cooling solution.
• Greater thermal headroom: Increased heat dissipation capacity supports higher sustained operating frequencies.
• Improved stability: Better temperature management helps maintain consistent performance during continuous operation.
• Lower noise potential: More effective passive heat dissipation reduces the need to rely exclusively on high fan speeds.
• Designed for continuous mining: A cooling system better suited to the demands of round-the-clock operation.

This is what makes the Gamma 603 different: higher performance supported by better thermal engineering, rather than higher frequencies alone.

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🔇 High performance without the industrial noise

Bitcoin mining doesn't have to sound like a server room.

The Gamma 603 pairs its oversized Copperzilla 2.0 heatsink with a dedicated 5V cooling fan, creating a cooling solution designed to balance airflow, heat dissipation, and acoustic performance.

Because the larger heatsink can dissipate heat more effectively, the cooling system has more room to maintain acceptable temperatures without depending entirely on aggressive fan speeds.

This makes the Gamma 603 a much more practical choice for home environments than conventional industrial ASIC miners.

Whether you're running it on a desk, in a home office, or as part of a small collection of solo miners, the Gamma 603 is designed with quiet, everyday operation in mind.

Whisper-quiet operation is achievable with appropriate fan settings and ambient temperatures. Noise levels will vary depending on cooling configuration, operating frequency, and room temperature.

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⚡ 1.54 TH/s straight out of the box

The Gamma 603 arrives factory-tuned for higher performance, so there's no need to experiment with overclocking just to reach its advertised hashrate.

Running at 750 MHz and 1250 mV, it achieves approximately 1.54 TH/s, compared with around 1.3 TH/s for the previous Gamma 602 factory configuration.

That's approximately 18% more hashrate, backed by an upgraded cooling solution designed to support the additional thermal load.

• Gamma 602: Approximately 1.3 TH/s at the referenced factory configuration.
• Gamma 603: Approximately 1.54 TH/s at factory settings.
• Performance increase: Around 18% more hashing power.
• Additional cooling: Copperzilla 2.0 included as standard.
• ASIC quality: Exclusively factory-new BM1370 chips.

Actual performance may vary slightly with operating conditions, ambient temperatures, and firmware configuration.

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🧠 Factory-new BM1370 ASIC

At the heart of the Gamma 603 is the BM1370 ASIC, a modern SHA-256 mining chip from Bitmain.

The Gamma 603 uses factory-new chips exclusively, rather than reclaimed or previously operated ASICs.

The BM1370 is designed for efficient SHA-256 computation, with Bitmain specifying a chip-level efficiency of approximately 15 J/TH under its rated conditions.

By pairing this ASIC with improved cooling and carefully selected components, the Gamma 603 brings modern Bitcoin mining technology to a compact, accessible, open-source platform.

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⛏️ What does it actually do?

The Bitaxe Gamma 603 performs the SHA-256 calculations used to secure the Bitcoin network and discover new blocks.

It continuously generates hashes, searching for a result that satisfies the network's current mining difficulty.

When configured for solo mining, your miner works independently toward finding a valid Bitcoin block.

If your Gamma 603 discovers a valid block, the reward is currently 3.125 BTC plus the associated transaction fees, subject to your mining setup and any applicable pool conditions.

It's a small miner participating in the same global proof-of-work competition as industrial mining farms, just on a much smaller scale.

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🎯 Why solo mining?

Solo mining is about independence, decentralization, and the possibility of discovering a block yourself.

Instead of accumulating small, predictable payouts through a conventional shared-reward mining pool, solo mining gives you a chance to claim the entire block reward.

• Mine Bitcoin independently.
• Keep the full block reward if you successfully find a block, subject to pool terms.
• Choose your own solo mining pool or operate through your own Bitcoin infrastructure.
• Participate directly in Bitcoin's proof-of-work network.
• Support a more decentralized mining ecosystem.
• Learn how Bitcoin mining works using real ASIC hardware.

Every hash is another attempt. Finding a block with a single Bitaxe remains extremely unlikely, but every miner contributes real computational work to the Bitcoin network.

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🏠 Designed for your home, not a mining warehouse

Traditional Bitcoin ASIC miners can consume thousands of watts and generate substantial noise and heat.

The Gamma 603 takes a different approach.

Its compact footprint, low-power architecture, integrated wireless connectivity, and oversized cooling system make it suitable for smaller home mining setups.

• Compact desktop design: Fits comfortably into a home office or workstation.
• WiFi connectivity: No Ethernet cable required.
• Quiet-focused cooling: Larger heatsink and active fan cooling.
• Low-power operation: Far lower electricity requirements than industrial ASIC miners.
• 24/7 capability: Designed for continuous operation with appropriate ventilation.
• Standalone operation: No dedicated computer needed once configured.

With its black circuit board and matching matte-black cooling assembly, the Gamma 603 also features a clean, understated appearance.

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📱 Simple setup with AxeOS

You don't need to be a mining expert to get started.

The Gamma 603 uses AxeOS, the open-source firmware and browser-based management interface developed for the Bitaxe ecosystem.

Connect the miner to power, configure its WiFi connection, enter your mining pool information and Bitcoin address, and you're ready to start hashing.

Through AxeOS, you can monitor and control:

• Live and average hashrate.
• ASIC temperature.
• Mining frequency and core voltage.
• Fan operation and cooling configuration.
• Pool connectivity and mining statistics.
• Accepted and rejected shares.
• Firmware configuration and updates.

The onboard OLED display provides convenient access to essential mining information, while its removable design makes servicing or replacement easier.

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🔧 Open-source hardware. Your miner, your rules.

The Gamma 603 continues the Bitaxe tradition of open-source development.

Unlike closed industrial mining appliances, the Bitaxe ecosystem gives enthusiasts access to community-developed firmware, documentation, and customization options.

Whether you prefer to run it at factory settings, experiment with efficiency-focused undervolting, or explore the broader open-source mining ecosystem, the Gamma 603 provides a flexible platform for enthusiasts and experienced miners alike.

Its improved thermal capacity also makes it a more capable starting point for performance tuning, although results will always depend on the individual chip, cooling conditions, and configuration.

No proprietary cloud account or subscription is required to operate the miner.

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📊 Key specifications

• Model: Bitaxe Gamma 603
• Algorithm: SHA-256
• ASIC: Bitmain BM1370, factory-new
• Stock hashrate: Approximately 1.54 TH/s
• Factory frequency: 750 MHz
• Factory core voltage: 1250 mV
• Chip efficiency rating: 15 J/TH (Bitmain specification; not total wall efficiency)
• Cooling: Copperzilla 2.0, matte-black aluminium
• Fan: 5V Thermalright cooling fan
• Power supply rating: 41.6W (5.2V / 8A)
• Connectivity: Integrated WiFi
• Controller: ESP32-S3
• Display: Detachable OLED
• Firmware: AxeOS, open source
• Management: Browser-based web interface
• Manufacturing: Assembled in Germany
• Compliance: CE compliant

Note: The 41.6W figure refers to the supplied power adapter's rated output capacity, not a guaranteed continuous power draw. Actual consumption depends on operating conditions and configuration.

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⚠️ Important to know

The Bitaxe Gamma 603 is a genuine Bitcoin ASIC miner, but solo mining is not a reliable source of income.

Finding a Bitcoin block with a single desktop miner is statistically extremely rare. While every hash has a chance of finding a valid block, there is no guarantee that a miner will ever discover one.

The Gamma 603 is best suited to enthusiasts who value Bitcoin decentralization, open-source technology, learning, and the experience of running their own mining hardware.

Although its improved cooling system is designed for stable, quiet operation, the miner still produces heat. Keep it in a well-ventilated, dry environment with unobstructed airflow. Fan noise and temperatures depend on ambient conditions and operating settings.

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🚀 The next evolution of Bitaxe Gamma

The Gamma 603 isn't about chasing a bigger hashrate number at any cost.

It's about making a compact Bitcoin miner more capable through better thermal engineering, higher stable factory performance, and a cooling system designed for the additional workload.

With its factory-new BM1370 ASIC, Copperzilla 2.0 cooling system, and approximately 1.54 TH/s stock performance, the Gamma 603 represents a meaningful evolution of the Gamma platform.

More hashing power. More thermal headroom. Less noise. Still completely open source.

Bitaxe Gamma 603 — engineered to hash harder, run cooler, and keep Bitcoin mining in your hands.

🔌 **Bitaxe Gamma 603**
The next evolution of the Bitaxe Gamma. Not just a minor upgrade, but a substantial thermal rework designed to deliver higher sustained hashrates while remaining whisper quiet. Built for home Bitcoin mining and 24/7 solo mining.

❄️ **Reengineered cooling**
Featuring the upgraded Copperzilla 2.0 cooling system with a significantly larger heatsink. Improved heat dissipation provides greater thermal headroom, allowing higher stable operating frequencies without relying on excessive fan speeds.

🔇 **Whisper-quiet performance**
More hashing power without industrial mining noise. The oversized cooling system is designed for efficient heat management and quiet operation, making it ideal for home offices and desktop setups.

🔓 **Open source**
Fully open hardware and firmware. Inspect, modify, customize, and contribute.

🎛 **Full control**
Mine Bitcoin on your terms. No locked ecosystem. Fully compatible with your own node or mining pool, with frequency, voltage, and fan tuning through AxeOS.

🌐 **Community-driven**
Part of the OSMU open-source mining ecosystem, supported and continuously improved by a global community.

⚙️ **Core features**
• Plug and play setup
• Integrated WiFi connectivity
• Web dashboard via AxeOS
• Removable OLED display for real-time stats
• Copperzilla 2.0 oversized heatsink
• Quiet 5V Thermalright cooling fan
• Improved thermal stability for continuous mining
• Factory-new BM1370 ASIC chip
• Overclocking and undervolting support

⚡ **Key specs**
• ~1.54 TH/s factory hashrate
• ~18% higher stock hashrate than Gamma 602
• 750 MHz / 1250 mV factory tuning
• BM1370 SHA-256 ASIC
• Copperzilla 2.0 cooling system
• 5.2V / 8A power supply
• WiFi connectivity with ESP32-S3 controller
• SHA-256 (Bitcoin, Bitcoin Cash, more)
• Assembled in Germany

📦 **Included**
• Bitaxe Gamma 603
• Copperzilla 2.0 cooling system
• Selected stand
• 5.2V / 8A power supply

₿ **Solo mining ready.** Higher hashrate, better thermals, and quieter operation. Mine independently for a chance at the full 3.125 BTC block reward plus transaction fees.

**More hashrate. Better cooling. Less noise. Still open source.**