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Related Manuals for BITMAIN AntMiner S21 Pro
Summary of Contents for BITMAIN AntMiner S21 Pro
- Page 1 S21 Pro User Guide Mar. 2025 BITMAIN TECHNOLOGIES INC. www.bitmain.com...
- Page 2 S21 Pro User Guide Table of Contents 1 Overview ......................1 1.1 Server components ..................... 2 1.2 Server Specification .................... 3 2 Setting up the Server ..................5 2.1 Setting up the Server ................... 5 2.2 Configuring the Server ..................7 2.3 Monitor your Server....................
- Page 3 S21 Pro User Guide 6.2 Industry Canada ....................24 6.3 European Community ..................24 6.4 Taiwan ROHS ..................... 25 6.5 FCC Supplier’s Declaration of Conformity ............26 6.6 EU Declaration of Conformity ................27 7 Warranty ......................28...
- Page 4 S21 Pro User Guide 1 Overview The S21 Pro server is one of BITMAIN’s latest Air-Cooling server product. This guide set S21 Pro as an example introduce various operations in details, and other server operation are the same. Front View...
- Page 5 S21 Pro User Guide 1.1 Server components The main components and controller front panel of S21 Pro servers are shown in the following figure: Power Supply Socket Power Supply: NOTE: (1) Power supply APW171215 is part of S21 Pro server. For detailed parameters, please refer to the specifications below.
- Page 6 S21 Pro User Guide Server Specification Table 1-1 Product Glance Product Glance Value Model S21 Pro 245T 234T 220T Version Crypto algorithm/coins SHA256 | BTC/BCH/BSV Typical Hashrate, TH/s (1-1) Power on wall @25℃ , Watt 3675 3510 3300 (1-2) (1-1) Power efficiency on Wall @25℃...
- Page 7 S21 Pro User Guide (2‐2) Single‐phase AC input 20A. (2‐3) Max condition: Fan is under max RPM(rotation per minute). (2‐4) When the server is dusty or the environment is poorly ventilated, the server airflow will reduce. (2‐5) When the server is used at an altitude from 900m to 2000m, the highest operating temperature decreases by 1℃...
- Page 8 To set up the server: Go to the following site: https://file12.bitmain.com/shop-product/firmware/IP%20Reporter.zip. If the link is invalid, please visit the official firmware download page (https://service.bitmain.com/support/download) and select as shown in the image to download IPReporter.zip. Download the following file: IPReporter.zip. Extract the file.
- Page 9 Proceed to login using root for both the username and password. 10. In the Protocol section, you can assign a Static IP address (optional). 11. Enter the IP address, Subnet mask, gateway and DNS Server. 12. Click “Save”. 13. Click https://support.BITMAIN.com/hc/en-us/articles/360018950053 to learn more about gateway and DNS Server.
- Page 10 S21 Pro User Guide 2.2 Configuring the Server Setting up the Pool To configure the server: Click Settings as below. Set the options according to the following table: Note: Fan speed percentage can be adjusted, but we recommend to keep the default setting. ...
- Page 11 S21 Pro User Guide Option Description Mining address Enter the address of your desired pool. The S21 Pro server can be set up with three mining pools, with decreasing priority from the first pool (pool 1) to the third pool (pool 3). The pools with low priority will only be used if all higher priority pools are offline.
- Page 12 3.2 Upgrading your System Caution: Make sure that the S21 Pro server remains powered during the upgrade process. If power fails before the upgrade is completed, you will need to return it to BITMAIN for repair. To upgrade the server’s firmware:...
- Page 13 S21 Pro User Guide For Keep Settings: (1) Select “keep settings” to keep your current settings (default). (2) Unselect “keep settings” to reset the server to default settings. Click the button and navigate to the upgrade file. Select the upgrade file, then click Update.
- Page 14 S21 Pro User Guide 3.4 Restoring Initial Settings To restore your initial settings Turn on the server and let it run for 5 minutes. On the controller front panel, press and hold the Reset button for 10 seconds. Caution: Resetting your server will reboot it and restore its default settings. The red LED will automatically flash once every 15 seconds if the reset is operated successfully.
- Page 15 S21 Pro User Guide R8:1 Chain4 is Check if chain4 connection is normal, update broken or has the firmware to the latest version, replace the low hashrate hashboard, or return to factory for repair J1:1 Chain1 has bad Update the firmware to the latest version, ASIC replace the power supply, or return to factory for repair...
- Page 16 S21 Pro User Guide F1:1 Fan1 is not Check if the fan1 connection is normal, replace detected or its the power supply, or replace the fan speed is low F2:1 Fan2 is not Check if the fan2 connection is normal, replace detected or its the power supply, or replace the fan speed is low...
- Page 17 S21 Pro User Guide J8:4 Chain4 Redo the factory test for chain4 EEPROM data error Temperature Check if the hashboard connection is normal, sensor error update the firmware to the latest version, replace the hashboard, or return to factory for repair J1:5 Chain1 PIC...
- Page 18 S21 Pro User Guide J8:2 The number of Check if chain4 connection is normal, update chain4 chips is the firmware to the latest version, replace the less than the hashboard, or return to factory for repair design L1:1 Chain1 voltage Update the firmware to the latest version, or or frequency return to factory for repair...
- Page 19 S21 Pro User Guide Network Check if the network connection is normal connection is lost...
- Page 20 S21 Pro User Guide 4 Server Disassembly and Installation 4.1 Control Panel Disassembly and Installation Remove the 4 upper cover screws of the server, as shown in the figure：. Remove the two upper covers and unplug a total of 9 cables on the control board, including the operation board arrangement cables, the fan cables, the control board power supply cables and the power supply voltage regulating cables, as shown in the figure：...
- Page 21 S21 Pro User Guide Remove 2 screws from the front cover of the control panel, remove the front cover, and push the control panel along the chute, as shown in the figure： The installation steps are opposite to the disassembly steps, and it can be install in the steps of the opposite above order.
- Page 22 S21 Pro User Guide Unplug the 2 cables connected to the control board and remove the 4 copper screws, as shown in the figure： Remove the power supply and chassis fixing screws, as shown in the figure： Take out APW power supply, as shown in the figure：...
- Page 23 S21 Pro User Guide The installation steps are opposite to the disassembly steps, and it can be install in the steps of the opposite above order. 4.3 Hash Board Disassembly and Installation Remove the 2 upper caps according to the above method. Remove 4 screws and remove the fan and baffle, as shown in the figure：...
- Page 24 S21 Pro User Guide Remove the cables and screws, the rest of the hash board can be extracted, as shown in the figure: The installation steps are opposite to the disassembly steps, and you can install in the steps of the opposite above order.
- Page 25 S21 Pro User Guide 5 Environmental Requirements Please ensure that your server operates in accordance with the following environmental requirements. 5.1 Basic Environmental Requirements 5.1.1 Climatic Conditions Table 5-1 Requirements of climatic conditions Descriptions Requirements Operating Temperature, ° C -20-45 Operating Humidity, RH 10-90%(non-condensing) Storage Temperature, °...
- Page 26 S21 Pro User Guide 5.2 Other Environmental Requirements The server running room shall be free of explosive, conductive, magnetically conductive and corrosive dust. The requirements of mechanical active substances are shown below. 5.2.1 Mechanical Active Substances Table 5-2 Requirements of mechanical active substances Mechanical Active Substance Requirement Sand, mg/m...
- Page 27 CAN ICES-003(A) / NMB-003(A) 6.3 European Community Warning: Operation of this equipment in a residential environment could cause radio interference. UAB Bitmain Development Lithuania Vilnius, Bistrycios g.40-21 EU WEEE Disposal of Waste Equipment by Users in Private Household in the European...
- Page 28 S21 Pro User Guide This symbol on the product or on its packaging indicates that this product must not be disposed of with your other household waste. Instead, it is your responsibility to dispose of your waste equipment by handling it over to a designated collection point for the recycling of waste electrical and electronic equipment.
- Page 29 Supplier’s Declaration of Conformity Trade Name: Model Number: S21 Pro Responsible Part---U.S. Contact Information Company: Bitmain Technologies Delaware Limited Street Address: 100 Spectrum Center Drive, Suite 1255 City, State: City of Irvine, State of CA - California Zip Code: CA 92618 Telephone number: +1 949-381-9884 Internet contact information: https://www.bitmain.com/...
- Page 30 S21 Pro User Guide 6.6 EU Declaration of Conformity EU Declaration of Conformity Manufacturer’s Name: BITMAIN DEVELOPMENT PTE. LTD. Manufacturer’s Address: 1 Raffles Place, #36-01 One Raffles Place, Singapore 048616 For the following equipment Trade Mark: Product: Server Model No.: S21 Pro is herewith confirmed to comply with the requirements set out in Directive 2014/35/EU, Directive 2014/30/EU, and Directive 2011/65/EU.
- Page 31 S21 Pro User Guide 7 Warranty 1. A 365-day warranty is provided starting from the shipping date. BITMAIN will cover shipping costs when shipping a replacement unit within the warranty period. 2. The warranty only applies to the original purchaser who purchased the machine directly from BITMAIN.
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