Complete Guide to the Bitmain Antminer S21 XP Immersion (300Th)

Introduction

The Bitmain Antminer S21 XP Immersion (300Th) is a next-generation ASIC miner designed for high-performance mining with an impressive hashrate of 300 TH/s for SHA-256-based cryptocurrencies. Released in October 2024, this powerful miner is designed to offer excellent performance and efficiency for mining Bitcoin (BTC) and other SHA-256 coins. With its oil-cooling technology, low noise level, and highly efficient power consumption of 4050W, the Antminer S21 XP Immersion is the ideal choice for serious miners looking to maximize their profitability in a variety of SHA-256 coins.

This guide provides an in-depth look at the technical specifications, mining capabilities, setup, maintenance tips, and optimization techniques for getting the best results from the Antminer S21 XP Immersion (300Th).

Technical Specifications

Main Features

• Power Consumption: The Antminer S21 XP Immersion operates at 4050W, delivering exceptional efficiency for its high hashrate. The oil-cooling system helps optimize power usage while ensuring cooling efficiency.
• Cooling System: Oil cooling significantly improves the thermal management of the miner, preventing overheating even during prolonged mining sessions.
• Noise Level: At 50 dB, the noise level is relatively low, though it is important to consider that oil cooling systems generally create less noise than traditional air cooling.

Mineable Coins

The Bitmain Antminer S21 XP Immersion supports mining the following SHA-256 coins:

• Bitcoin (BTC): The world's most popular cryptocurrency, mined using the SHA-256 algorithm.
• Joulecoin (XJO): A lesser-known coin, also using the SHA-256 algorithm.
• Peercoin (PPC): A long-standing coin that uses SHA-256 for proof of work.
• eMark (DEM): Another SHA-256-based coin that is mineable with the Antminer S21 XP.
• Acoin (ACOIN): A coin based on the SHA-256 algorithm, suitable for mining with this ASIC.
• Curecoin (CURE): A coin focused on scientific research, also mineable with the SHA-256 algorithm.

By supporting a broad range of SHA-256 coins, the Antminer S21 XP Immersion is versatile for miners seeking to mine various cryptocurrencies using the same hardware.

Where to Buy

You can buy the Antminer S21 XP Immersion (300Th) directly from Bitmain's official store or through authorized resellers. Always ensure you are purchasing from trusted sources to guarantee product authenticity and customer support.

• Bitmain Official Store: Purchasing from Bitmain's official store guarantees the best customer service and warranty support.
• Premium Resellers: Authorized resellers like MinerAsic offer trusted support, warranties, and after-sales service for your hardware.

Maintenance

1. Regular Cleaning

• Oil-Cooling Maintenance: With the oil cooling system, regular maintenance is necessary to prevent the oil from becoming contaminated with dust or debris. Periodically check the oil levels and ensure it is clean and free from particles.
• Method: Clean external parts, such as the miner's body and filters (if applicable), to prevent dust buildup. Ensure the oil cooling system is functioning properly and that no oil leaks are present.

2. Temperature and Humidity Monitoring

• The miner operates optimally between 5°C and 45°C, with a humidity range of 5% to 95%. Overheating or excessive humidity can reduce performance or damage the internal components.
• Solution: Keep the miner in a cool, dry environment. If operating in high-humidity areas, consider using dehumidifiers to maintain ideal humidity levels.

3. Cooling System Checks

• The oil-cooling system requires less frequent maintenance compared to traditional air-cooling systems. However, it is crucial to periodically check that the oil remains at the correct level and that the cooling system is functioning without leaks.
• Maintenance: Ensure that the oil is clean, topped up, and free of debris. Monitor the temperature and make adjustments to the cooling system if necessary.

4. Firmware Updates

• Firmware is vital for optimizing the performance of your miner. Always check for updates from Bitmain and ensure your miner is running the latest version for enhanced efficiency and bug fixes.
• Frequency: Regularly visit the miner's interface to check for updates and install them as needed.

Overclocking

What is Overclocking?

Overclocking involves adjusting the miner's clock speeds to increase performance. For the Antminer S21 XP Immersion (300Th), this means potentially increasing the hashrate, but it comes at the cost of higher energy consumption and heat production.

Overclocking Procedure

1. Access the Miner's Web Interface: Log into the miner via a web browser using the IP address.
2. Navigate to the Overclocking Settings: In the settings menu, gradually increase the clock frequency by 5% increments.
3. Monitor Performance: After each change, monitor the temperature, hashrate, and power consumption.
4. Stability Test: Run the miner for several hours after each adjustment to ensure stability and make sure the system is not overheating.

Precautions for Overclocking

• Cooling: Overclocking generates additional heat. Ensure that the oil-cooling system is working optimally.
• Power Supply: Ensure that your power supply can handle the additional load resulting from overclocking.

Tips for Optimal Use

1. Initial Setup and Installation

• Location: Install the miner in a well-ventilated area with proper temperature and humidity controls. Avoid placing it near heat sources or in areas with excessive dust or moisture.
• Power Supply: Use certified power supplies to avoid issues with voltage fluctuations and ensure stable operation.

2. Troubleshooting Common Issues

• Connection Issues: If the miner is not connecting to the network or mining pool, check the Ethernet connection and verify IP settings.
• Hardware Failures: Identify any faulty components such as fans, oil pumps, or power supply units and replace them promptly to avoid damage.
• Software Issues: If experiencing crashes or errors, restart the miner or reset the firmware.

3. Device Security

• VPN Protection: Use a VPN when managing the miner remotely to enhance security and protect it from cyber threats.
• Firewall Configuration: Ensure the miner is behind a firewall to prevent unauthorized access.

4. Regular Maintenance

• Check for Leaks: Given the oil cooling system, regularly inspect the miner for any oil leaks. Maintain the oil levels and ensure the cooling system is functioning correctly.
• Cooling System: Ensure that the cooling system is free of contaminants, and the oil is kept clean to maximize the cooling efficiency.