Dell EC27250 Owner's Manual

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Table Of Contents

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Table of Contents

Table of Contents
Chapter 1: Views of Dell 27 All-In-One EC27250
Right
Front
Back
Back Panel
Bottom
Service Tag
Tilt
Retractable Camera
Inside View of Your Computer
Chapter 2: Set up Your Computer
Chapter 3: Specifications of Dell 27 All-In-One EC27250
Dimensions and Weight
Processor
Chipset
Operating System
Memory
External Ports and Slots
Internal Slots
Ethernet
Wireless Module
Audio
Storage
Media-Card Reader
Camera
Power Adapter
Display
GPU-Integrated
GPU-Discrete
Video Port Resolution
Environmental
Regulatory Compliance
Stand
Operating and Storage Environment
Dell Support Policy
Chapter 4: Working Inside Your Computer
Safety Instructions
Before Working Inside Your Computer
Safety Precautions
Standby Power
Electrostatic Discharge-ESD Protection
ESD Field Service Kit
Working Environment
Transporting Sensitive Components
After Working Inside Your Computer
Bitlocker
Recommended Tools
Screw List
Major Components of Dell 27 All-In-One EC27250
Chapter 5: Removing and Installing Customer Replaceable Units (Crus)
Stand
Removing the Stand
Installing the Stand
Back Cover
Removing the Back Cover
Installing the Back Cover
I/O Cover
Removing the I/O Cover
Installing the I/O Cover
Stand Hinges
Removing the Stand Hinges
Installing the Stand Hinges
System-Board Shield
Removing the System-Board Shield
Installing the System-Board Shield
Solid State Drive (SSD)
Removing the M.2 2230 Solid-State Drive
Installing the M.2 2230 Solid-State Drive
Memory Module
Removing the Memory Module
Installing the Memory Module
Wireless Card
Removing the Wireless Card
Installing the Wireless Card
Retractable-Camera Assembly
Removing the Retractable-Camera Assembly
Installing the Retractable-Camera Assembly
Fan
Removing the Fan
Installing the Fan
Speakers
Removing the Speakers
Installing the Speakers
Coin-Cell Battery
Removing the Coin-Cell Battery
Installing the Coin-Cell Battery
Chapter 6: Removing and Installing Field Replaceable Units (Frus)
Heat Sink
Removing the Heat Sink- UMA
Installing the Heat Sink- UMA
Removing the Heat Sink- Discrete
Installing the Heat Sink- Discrete
Media-Card Reader
Removing the Media-Card Reader
Installing the Media-Card Reader
Power-Button Board with USB
Removing the Power-Button Board with USB
Installing the Power-Button Board with USB
System Board
Removing the System Board
Installing the System Board
Microphone Module
Removing the Microphone Module
Installing the Microphone Module
Antennas
Removing the Antennas
Installing the Antennas
Display Panel
Removing the Display Panel
Installing the Display Panel
Middle Frame Assembly
Removing the Middle-Frame Assembly
Installing the Middle-Frame Assembly
Chapter 7: Software
Operating System
Drivers and Downloads
Chapter 8: BIOS Setup
Entering BIOS Setup Program
Navigation Keys
One Time Boot Menu
System Setup Options
Updating the BIOS
Updating the BIOS in Windows
Updating the BIOS Using the USB Drive in Windows
Updating the BIOS from the One Time Boot Menu
System and Setup Password
Assigning a System Setup Password
Deleting or Changing an Existing System Setup Password
Clearing CMOS Settings
Clearing System and Setup Passwords
Chapter 9: Troubleshooting
Dell Supportassist Pre-Boot System Performance Check Diagnostics
Running the Supportassist Pre-Boot System Performance Check
System-Diagnostic Lights
Recovering the Operating System
Real-Time Clock (RTC Reset)
Backup Media and Recovery Options
Network Power Cycle
Chapter 10: Getting Help and Contacting Dell
Self-Help Resources

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Dell 27 All-in-One

EC27250

Owner's Manual

Regulatory Model: W28C

Regulatory Type: W28C001

April 2025

Rev. A01

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