Main
DellLatitudeD420User'sGuide
Notes, Notices, and Cautions Abbreviations and Acronyms
About Your Computer
DellLatitudeD420User'sGuide
Front View
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Left View
Right View
Back View
Bottom View
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Appendix
Cleaning Your Computer
Computer, Keyboard, and Display
Touch Pad
Floppy Drive
Macrovision Product Notice
FCC Notice (U.S. Only)
FCC Class B
Using a Battery
Battery Performance
Checking the Battery Charge
DellQuickSetBatteryMeter
MicrosoftWindowsPower Meter
Conserving Battery Power
Power Management Modes
Standby Mode
Hibernate Mode
Configuring Power Management Settings
Charging the Battery
Replacing the Battery
Storing a Battery
Using Cards
Card Types
Card Blanks
Extended Cards
Installing a PC Card or 34-mm ExpressCard
Installing a Smart Card or Secure Digital (SD) Card
Removing a PC Card, 34-mm Express Card, or Blank
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Using the Display
Adjusting Brightness
Switching the Video Image
Setting Display Resolution and Refresh Rate
Dual Independent Display Mode
Swapping Primary and Secondary Displays
Finding Information
DellLatitudeD420User'sGuide
Drivers and Utilities CD (also known as ResourceCD)
Quick Reference Guide
DellProductInformationGuide
Service Tag and MicrosoftWindowsLicense
Dell Support Website support.dell.com
Dell Support Utility
Windows Help and Support Center
Dell QuickSet Help
Operating System CD
Glossary
A
B
C
D
E
F
G
H
I
K
L
M
N
O
P
R
S
T
U
V
W
X
Z
Getting Help
Obtaining Assistance
Online Services
AutoTech Service
Automated Order-Status Service
Problems With Your Order
Product Information
Returning Items for Warranty Repair or Credit
Before You Call
Contacting Dell
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Using the Keyboard and Touch Pad
DellLatitudeD420User'sGuide
Numeric Keypad
Key Combinations
System Functions
Touch Pad
Fingerprint Reader (optional)
Customizing the Touch Pad and Track Stick
Changing the Track-Stick Cap
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Setting Up a Network
Physically Connecting to a Network or Broadband Modem
Network Setup Wizard
Wireless Local Area Network (WLAN)
What You Need to Establish a WLAN Connection
Checking Your Wireless Network Card
Start Button and Connect To Option
The Order Confirmation for Your Computer
Setting Up a New WLAN
Connecting to a Wireless Local Area Network
Determining the Wireless Network Device Manager
Completing the Connection to the WLAN
Enabling/Disabling the Wireless Network Card
MonitoringtheStatusofWirelessNetworkConnectionsThroughDellQuickSet
Mobile Broadband or Wireless Wide Area Network (WWAN)
What You Need to Establish a Mobile Broadband Network Connection
Connecting to a Mobile Broadband Network
DellWi-FiCatcherNetworkLocator
Internet Connection Firewall
Adding and Replacing Parts
Before You Begin
Recommended Tools
Turning Off Your Computer
Before Working Inside Your Computer
Hard Drive
Removing the Hard Drive
Dismantling the Hard Drive
Replacing the Hard Drive
Hinge Cover
Keyboard
Memory
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Mini-Cards
Wireless Local Area Network (WLAN) Cards
Mobile Broadband (WWAN) Cards
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Subscriber Identity Module (SIM) Card
Internal Card With BluetoothWireless Technology
Coin-Cell Battery
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DellQuickSet
Securing Your Computer
Security Cable Lock
Using Smart Cards
About Smart Cards
Passwords
Trusted Platform Module (TPM)
Enabling the TPM Feature
Security Management Software
Activating the Security Management Software
Using the Security Management Software
Computer Tracking Software
If Your Computer Is Lost or Stolen
System Setup Program
Overview
Viewing the System Setup Screens
System Setup Screens
Commonly Used Settings
Changing COM Ports
Enabling the Infrared Sensor
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Reinstalling Software
Drivers
What Is a Driver?
Identifying Drivers
Reinstalling Drivers and Utilities
Software and Hardware Incompatibilities
Restoring Your Operating System
Using Microsoft Windows XP System Restore
Creating a Restore Point
Restoring the Computer to an Earlier Operating State
Undoing the Last System Restore
Using the Operating System CD
Before You Begin
Reinstalling Windows XP
Specifications
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Notes, Notices, and Cautions
Abbreviations and Acronyms
Transferring Information to a New Computer
Running the Files and Settings Transfer Wizard With the Operating System CD
Running the Files and Settings Transfer Wizard Without the Operating System CD
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Traveling With Your Computer
Identifying Your Computer
Packing the Computer
Travel Tips
Traveling by Air
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Troubleshooting
Dell Technical Update Service
Dell Diagnostics
When to Use the Dell Diagnostics
Starting the Dell Diagnostics From Your Hard Drive
Starting the Dell Diagnostics From the Optional Drivers and Utilities CD
Dell Diagnostics Main Menu
Dell Support Utility
Accessing the Dell Support Utility
Clicking the Dell Support Icon
Double-Clicking the Dell Support Icon
Drive Problems
CD and DVD drive problems
Problems writing to a CD/DVD-RW drive
If you cannot eject the CD, CD-RW, DVD, or DVD+RW drive tray
If you hear an unfamiliar scraping or grinding sound
Hard drive problems
E-Mail, Modem, and Internet Problems
Error Messages
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IEEE 1394 Device Problems
Keyboard Problems
External Keyboard problems
Unexpected characters
Lockups and Software Problems
The computer does not start up
The computer stops responding
A program stops responding or crashes repeatedly
A program is designed for an earlier MicrosoftWindows operating system
Memory Problems
Network Problems
General
Wireless Local Area Network (WLAN)
Mobile Broadband Network
PC Card or ExpressCard Problems
Power Problems
Ensuring Sufficient Power for Your Computer
Docking Power Considerations
Docking While the Computer Is Running
AC Power Loss While the Computer Is Docked
Printer Problems
Scanner Problems
Sound and Speaker Problems
No sound from integrated speakers
No sound from external speakers
No sound from headphones
Touch Pad or Mouse Problems
Video and Display Problems
If the display is blank
If the display is difficult to read
If only part of the display is readable