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R281-2O0
R281-NO0
R281-N40
Dual LGA3647 sockets motherboard for Intel® Xeon® Processor Scalable Family processors
Service Guide
Rev. 1.1

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Summarization of Contents

Hardware Installation
1-1 Installation Precautions
Safety guidelines and procedures to prevent damage during hardware installation.
1-2 Product Specifications
Detailed technical specifications for server hardware components.
1-3 System Block Diagram
Visual representation of the server's internal components and connections.
System Appearance
2-1 Front View
Identification and layout of front panel components and drive bays.
2-2 Rear View
Identification and layout of rear panel I/O ports and PSUs.
2-3 Front Panel LED and Buttons
Description and function of front panel indicators and controls.
2-4 Rear System LAN LEDs
Explanation of status indicators for rear system network ports.
2-5 Hard Disk Drive LEDs
Meaning of LEDs on hard disk drive bays for status indication.
Power Supply Unit LED
Description of Power Supply Unit LED states and their meanings.
System Hardware Installation
Pre-installation Instructions
General safety and preparation steps before starting hardware installation.
3-1 Removing Chassis Cover
Step-by-step guide to safely remove the server's outer casing.
3-2 Removing and Installing the Fan Duct
Instructions for disassembling and reassembling the internal fan duct.
3-3 Installing the CPU and Heat Sink
Procedures for correctly installing the processor and its cooling solution.
3-4 Installing the Memory
Guidelines and steps for installing DDR4 memory modules.
3-5 Installing the PCI Expansion Card
Process for adding expansion cards via riser assemblies.
3-6 Installing the Hard Disk Drive
Instructions for mounting and connecting hard disk drives.
3-7 Replacing the FAN Assembly
Procedure for swapping out server cooling fan modules.
3-8 Replacing the Power Supply
Steps to safely remove and install power supply units.
3-9 Cable Routing
Guidance on organizing and connecting internal cables for optimal airflow.
Motherboard Components
4-1 Motherboard Components
Identification and description of key connectors and headers on the motherboard.
4-2 Jumper Setting
Explanation of motherboard jumper configurations and their functions.
BIOS Setup
5-1 The Main Menu
Overview of the primary BIOS setup screen and navigation options.
5-2 Advanced Menu
Access to detailed system configuration settings beyond basic options.
5-3 Chipset Setup Menu
Access to detailed configuration options for North and South bridges.
5-4 Server Management Menu
Options for server health monitoring, event logging, and BMC settings.
5-5 Security Menu
Options for setting system passwords and managing security features.
5-6 Boot Menu
Settings for controlling system boot order and boot device priorities.
5-7 Save & Exit Menu
Options for saving configuration changes, exiting BIOS setup, or resetting.
5-8 BIOS POST Codes
Reference list of Power-On Self-Test (POST) codes and their meanings.
5-9 BIOS POST Beep code
Interpretation of beep codes generated during the POST sequence.
5-10 BIOS Recovery Instruction
Steps to restore the BIOS using the embedded recovery mechanism.

Table of Contents