Related Manuals for Dell W21B
Summarization of Contents
Safety Instructions
Before Working Inside Your Computer
Steps and guidelines for preparing to work inside the computer.
Electrostatic Discharge—ESD Protection
Information on preventing damage from static electricity to components.
ESD Field Service Kit
Details on the components and usage of an ESD field service kit.
Transporting Sensitive Components
Guidelines for safely transporting static-sensitive computer parts.
After Working Inside Your Computer
Procedures to follow after completing work inside the computer.
Removing and Installing Components
Recommended Tools
Lists the necessary tools for component removal and installation.
Screw List
Details screw types, quantities, and images for component assembly.
Stand
Procedures for removing and installing the computer stand.
Cable Cover—Optional
Steps for removing and installing the optional cable cover.
Back Cover
Instructions for removing and installing the computer's back cover.
Hard Drive
Procedures for removing and installing the hard drive.
Memory Modules
Steps for removing and installing memory modules (RAM).
System-board Shield
Guide to removing and installing the system board shield.
Solid-State Drive
Instructions for removing and installing M.2 SSDs and Intel Optane memory.
System Fan
Procedures for removing and installing the system fan.
Coin-Cell Battery
Steps for removing and installing the coin-cell battery.
Wireless Card
Instructions for removing and installing the wireless network card.
Camera Assembly
Procedures for removing and installing the camera assembly.
Bottom Cover
Steps for removing and installing the computer's bottom cover.
Heat Sink
Guide to removing and installing the system's heat sink.
Processor
Instructions for removing and installing the CPU.
Rear-I/O Bracket
Procedures for removing and installing the rear I/O bracket.
System Board
Detailed steps for removing and installing the system board.
Speakers
Instructions for removing and installing the speakers.
Power-Button Board
Steps for removing and installing the power-button board.
Microphones
Procedures for removing and installing the microphone modules.
Side I/O-Board
Guide to removing and installing the side I/O board.
Audio Board
Instructions for removing and installing the audio board.
Antenna Modules
Steps for removing and installing the wireless antenna modules.
Display Panel
Procedures for removing and installing the display panel.
Middle Frame
Instructions for removing and installing the middle frame.
Software
Operating System
Lists the operating systems supported by the computer.
Downloading the Drivers
Step-by-step guide to download and install system drivers.
System Setup
BIOS Overview
Explains the function of the BIOS in managing system data flow.
Entering BIOS Setup Program
Instructions on how to access the BIOS setup utility.
Navigation Keys
Details the keyboard keys used for navigating BIOS setup menus.
Boot Sequence
How to bypass setup-defined boot order and boot directly to a device.
System Setup Options
Lists and describes various system configuration settings available in BIOS.
Updating the BIOS in Windows
Steps to update the BIOS from within the Windows operating system.
Updating the BIOS Using the USB Drive in Windows
Instructions for updating BIOS via a bootable USB drive.
System and Setup Password
Information on setting and managing system and setup passwords.
Troubleshooting
SupportAssist Diagnostics
Guide to using SupportAssist for hardware diagnostics.
Diagnostic LED Behavior
Explains the meaning of diagnostic LED blinking patterns.
Recovering the Operating System
Information on using Dell SupportAssist OS Recovery.
Updating the BIOS in Windows
Steps to update the BIOS from within the Windows operating system.
Updating the BIOS Using the USB Drive in Windows
Instructions for updating BIOS via a bootable USB drive.
Backup Media and Recovery Options
Recommendations for creating recovery media for Windows.
WiFi Power Cycle
Procedure to resolve WiFi connectivity issues by power cycling.
Drain Residual Flea Power (Perform Hard Reset)
Steps to drain residual power for troubleshooting.
Getting Help and Contacting Dell
Self-Help Resources
Lists resources for obtaining information and help on Dell products.
Contacting Dell
Information on how to contact Dell for sales and support.
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