Name: Dell W21C
Brand: Dell
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Procedure

1 Remove the 13 screws (M3x5 black) that secure the middle frame to the display-

assembly base.

2 Slide and lift to release the tabs on the middle frame from the slots on the

display-assembly base from the top.

Default Chapter3
- Table of Contents3
Before Working Inside Your Computer10
- Before You Begin10
- Safety Instructions10
- Recommended Tools11
- Screw List12
After Working Inside Your Computer14
Removing the Stand15
- Easel Stand15
- Pedestal Stand16
Replacing the Stand18
- Easel Stand18
- Pedestal Stand18
Removing the Back Cover19
- Prerequisite19
- Procedure20
Replacing the Back Cover21
- Procedure21
- Post-Requisite21
Removing the Hard Drive22
- Prerequisites22
- Procedure22
Replacing the Hard Drive24
- Procedure24
- Post-Requisites24
Removing the System-Board Shield25
- Prerequisites25
- Procedure25
Replacing the System-Board Shield27
- Procedure27
- Post-Requisites27
Removing the Memory Module28
- Prerequisites28
- Procedure29
Replacing the Memory Module30
- Procedure30
- Post-Requisites30
Removing the Wireless Card31
- Prerequisites31
- Procedure31
Replacing the Wireless Card34
- Procedure34
- Post-Requisites35
Removing the Antenna36
- Prerequisites36
- Procedure36
Replacing the Antenna38
- Procedure38
- Post-Requisites38
Removing the Solid-State Drive/Intel Optane39
- Prerequisites39
- Procedure40
Replacing the Solid-State Drive/Intel Optane41
- Procedure41
- Post-Requisites42
Removing the Media-Card Reader43
- Prerequisites43
- Procedure43
Replacing the Media-Card Reader45
- Procedure45
- Post-Requisites45
Removing the Power-Button Board46
- Prerequisites46
- Procedure46
Replacing the Power-Button Board48
- Procedure48
- Post-Requisites48
Removing the Microphone49
- Prerequisites49
- Procedure49
Replacing the Microphone51
- Procedure51
- Post-Requisites51
Removing the Camera52
- Prerequisites52
- Procedure52
Replacing the Camera55
- Procedure55
- Post-Requisites55
Removing the Coin-Cell Battery56
- Prerequisites56
- Procedure57
Replacing the Coin-Cell Battery58
- Procedure58
- Post-Requisites58
Removing the Fan59
- Prerequisites59
- Procedure59
Replacing the Fan61
- Procedure61
- Post-Requisites61
Removing the Heat Sink62
- Prerequisites62
- Procedure62
Replacing the Heat Sink64
- Procedure64
- Post-Requisites64
Removing the Speakers65
- Prerequisites65
- Procedure65
Replacing the Speakers67
- Procedure67
- Post-Requisites67
Removing the System Board68
- Prerequisites68
- Procedure68
Replacing the System Board71
- Procedure71
- Post-Requisites72
- Flashing the BIOS72
Removing the Display Panel73
- Prerequisites73
- Procedure73
Replacing the Display Panel77
- Procedure77
- Post-Requisites81
Removing the Rubber Feet82
- Prerequisites82
- Procedure82
Replacing the Rubber Feet84
- Procedure84
- Post-Requisites84
Removing the Middle Frame85
- Prerequisites85
- Procedure86
Replacing the Middle Frame89
- Procedure89
- Post-Requisites89
Downloading Drivers91
- Downloading the Audio Driver91
- Downloading the Graphics Driver92
- Downloading the USB Driver92
- Downloading the Chipset Driver93
- Downloading the Network Driver94
System Setup96
- Boot Sequence96
- Navigation Keys96
- BIOS Overview97
- Entering BIOS Setup Program97
- System Setup Options98
- Flashing the BIOS103
Troubleshooting105
- Flashing the BIOS105
- Reinstall Windows Using a USB Recovery Drive105
- Enhanced Pre-Boot System Assessment (Epsa) Diagnostics106
- Running the Epsa Diagnostics107
- Display Built-In Self Test107
- Diagnostics107
- Flea Power Release109
- Wi-Fi Power Cycle109
Getting Help and Contacting Dell110
- Self-Help Resources110
- Contacting Dell111

Brand	Dell
Model	W21C
Category	Desktop
Language	English

Dell W21C User Manual

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