1. Introduction
This manual provides essential information for the safe and efficient operation of your Avalon A1246 ASIC BTC Miner. The AvalonMiner A1246 is a high-performance mining machine designed for the SHA-256 algorithm, primarily used for Bitcoin mining. It offers a maximum hashrate of up to 90TH/s with a power consumption of 3420W, making it a powerful tool for cryptocurrency enthusiasts.
2. Safety Information
- Voltage Requirement: The miner requires an input voltage of 220V. Using an incorrect input voltage can severely damage the miner and void any potential support.
- Ventilation: Ensure adequate ventilation around the miner to prevent overheating. Do not block air inlets or outlets. Maintain sufficient clearance on all sides.
- Environment: Operate the miner in a clean, dry environment, away from dust, moisture, and corrosive gases.
- Power Connection: Use only the provided power cables and ensure they are securely connected. Do not overload power circuits.
- Handling: Handle the miner with care. Avoid dropping or subjecting it to strong impacts.
- Maintenance: Disconnect power before performing any maintenance or cleaning.
3. Package Contents
Upon unpacking, please verify that all components are present and in good condition:
- Avalon A1246 ASIC BTC Miner Unit
- Power Cable (specific to region, not always included)
- Ethernet Cable (not always included)
Note: Additional accessories like power supplies or cables may be sold separately.
4. Product Overview
The Avalon A1246 miner features a robust design with multiple cooling fans and a dedicated control board. Below are images illustrating the miner's various angles and key components.

Figure 1: Front view of the Avalon A1246 Miner.

Figure 2: Angled front view highlighting cooling fans and branding.

Figure 3: Side view showing the heat dissipation fins.

Figure 4: Top view of the miner, including the integrated power supply unit.

Figure 5: Rear view showing control board ports and power input.
Key Features:
- High Hashrate & High Efficiency
- Safety and Quality Construction
- Built-in AI Chip for optimized performance
- Simple Deployment and Easy Maintenance
- Unique Reinforced Design for durability
5. Setup Instructions
- Placement: Choose a location with good airflow and stable temperature (5-35℃). Ensure the miner is placed on a stable, non-flammable surface.
- Power Connection: Connect the power cable to the miner's power input port and then to a 220V power outlet. Ensure the power source can handle the 3420W consumption.
- Network Connection: Connect an Ethernet cable from your router or network switch to the LAN port on the miner's control board.
- Power On: Once all connections are secure, power on the miner. The fans will start, and the status indicator lights will illuminate.
- Initial Configuration:
- Locate the miner's IP address using a network scanner tool or by checking your router's connected devices.
- Open a web browser and enter the miner's IP address to access its web interface.
- Log in using the default credentials (refer to specific documentation or contact support if unknown).
- Configure your mining pool settings (URL, worker name, password) in the web interface.
- Save the settings and restart the miner if prompted.
6. Operating Instructions
After successful setup and configuration, your Avalon A1246 miner will begin mining. Monitor its operation through the web interface and physical indicators.
- Status Indicators: Observe the LED lights on the control board (refer to Figure 5).
- LAN: Indicates network activity.
- STAT: Indicates mining status (e.g., solid for normal operation, blinking for errors).
- FUNC: Function indicator.
- Web Interface Monitoring: Regularly check the miner's web interface for real-time hashrate, temperature, fan speed, and error logs.
- Restart Button (RST): Use the RST button for a soft reboot of the miner if needed. A long press may initiate a factory reset (consult specific firmware documentation).
7. Maintenance
Regular maintenance is crucial for the longevity and optimal performance of your miner.
- Cleaning: Periodically clean the miner, especially the fans and heatsinks, to prevent dust buildup. Use compressed air or a soft brush. Ensure the miner is powered off and unplugged before cleaning.
- Firmware Updates: Check the manufacturer's website for the latest firmware updates. Keeping the firmware updated can improve performance and stability.
- Connection Checks: Ensure all power and network cables are securely connected and free from damage.
- Environmental Control: Maintain a stable operating environment within the recommended temperature and humidity ranges.
8. Troubleshooting
If you encounter issues with your Avalon A1246 miner, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Miner does not power on | No power, incorrect voltage, faulty power cable/PSU | Check power connections, ensure 220V input, test power cable/PSU. |
| No network connection (LAN LED off) | Faulty Ethernet cable, router issue, incorrect network settings | Check Ethernet cable, restart router, verify network settings in web interface. |
| Low hashrate or no mining activity | Incorrect pool settings, network issues, overheating, hardware fault | Verify pool URL, worker name, and password. Check network stability. Ensure proper ventilation. Restart miner. |
| Overheating | Poor ventilation, dirty fans/heatsinks, high ambient temperature | Improve airflow, clean fans/heatsinks, reduce ambient temperature. |
| STAT LED blinking rapidly | Mining error or hardware issue | Check miner logs in the web interface for specific error codes. Try restarting the miner. |
9. Specifications
Detailed technical specifications for the Avalon A1246 ASIC BTC Miner:

Figure 6: Avalon A1246 features and specifications.
| Parameter | Value |
|---|---|
| Model | AvalonMiner 1246 (A1246) |
| Algorithm | SHA-256 |
| Hashrate | 90TH/s (Optional 87T/85T/83T), -3%~+3% |
| Power Consumption | 3420W (-5%~+8%@Wall-Plug) |
| Power Efficiency | 38J/TH (-5%~+8%@25℃) |
| Input Voltage | 220V |
| Cooling | 4 x 12025 FANS |
| Operating Temperature | 5-35℃ |
| Noise | 75dB (Max) |
| Dimensions (Miner) | 331mm x 195mm x 292mm |
| Net Weight | 12.8kg |
| Gross Weight | 14.1kg |
| Dimensions (Packaging) | 390mm x 280mm x 395mm |
| Battery Included | No |
| High-concerned chemical | None |
| Origin | Mainland China |
10. User Tips
- Used Condition: Be aware that these products are often sold in used condition. While they are typically maintained to run well, it's advisable to verify their operational status upon receipt.
- Power Stability: Ensure your power supply is stable and can consistently deliver the required 220V and 3420W. Fluctuations can impact performance and lifespan.
- Cooling is Key: Given the high power consumption and heat generation, investing in a robust cooling setup for your mining environment is crucial to maintain optimal operating temperatures and prevent thermal throttling.
- Monitoring Software: Utilize third-party monitoring software in addition to the miner's web interface for comprehensive oversight of your mining operation.
11. Warranty and Support
Specific warranty terms for used mining equipment can vary significantly. It is highly recommended to confirm the warranty period and coverage directly with your seller at the time of purchase.
For technical support, troubleshooting assistance beyond this manual, or inquiries regarding mass orders, please contact the seller directly. They can provide specialized guidance and support for your Avalon A1246 miner.