Main
Advanced Features
LegacySelect Technology Control
Manageability
Alert Standard Format
DellOpenManageITAssistant
Security
Chassis Intrusion Detection
Option Settings
Padlock Ring and Security Cable Slot
Password Protection
Option Settings
Assigning a System Password
Typing Your System Password
Deleting or Changing an Existing System Password
Administrator Password
Deleting or Changing an Existing Administrator Password
Option Settings
Assigning an Administrator Password
Operating Your Computer With an Administrator Password Enabled
Trusted Platform Module (TPM)
Enabling the TPM Feature
System Setup
Overview
Entering System Setup
System Setup Screen
System Setup Options
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Changing Boot Sequence for the Current Boot
Changing Boot Sequence for Future Boots
Booting to a USB Device
Memory Key
Floppy Drive
Jumper Settings
Mini Tower, Desktop, and Small Form Factor Computers
Clearing Forgotten Passwords
Clearing CMOS Settings
HyperTransportandDual-Core Technology
Power Management
About RAID Configurations
Verifying That RAID Is Working
RAID Level 0 Configuration
RAID Level 1 Configuration
Configuring Your Hard Drives for RAID
Setting Your Computer to RAID-Enabled Mode
Using the NVIDIA MediaShield ROM Utility
Using NVIDIA MediaShield
Creating a RAID Array
Deleting a RAID Array
Converting From One RAID Configuration to Another RAID Configuration
Rebuilding a RAID Configuration
EnablingCool'n'QuietTechnology
Battery
Replacing the Battery
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Before You Begin
Recommended Tools
Turning Off Your Computer
Before Working Inside Your Computer
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Cleaning Your Computer
Computer, Keyboard, and Monitor
Mouse
Cleaning a Non-Optical Mouse
Cleaning an Optical Mouse
CDs and DVDs
Desktop Computer
About Your Desktop Computer
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Installing a PCI Card in the Riser-Card Cage
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Removing a PCI Card From the Riser-Card Cage
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PCI Express and DVI Cards
Installing a PCI Express x16 Card or DVI-Card
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Removing a PCI Express x16 Card or DVI-Card
Installing a PCI Express Card in the Riser-Card Cage
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Removing a PCI Express Card From the Riser-Card Cage
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Installing a Serial Port Adapter in the Riser-Card Cage
Removing a Serial Port Adapter From the Riser-Card Cage
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Removing a Floppy Drive
Installing a Floppy Drive
Media Card Reader
Removing the Media Card Reader
Installing the Media Card Reader
Removing the Hard Drive
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Removing and Replacing a Second Hard Drive
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Notes, Notices, and Cautions
Desktop Computer
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DC Power Connector P2
DC Power Connector P3
DC Power Connector P4
DC Power Connector P5 and P6
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Desktop Computer (Model # DCNE) Specifications
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FCC Regulatory Model (U.S. Only)
DellOptiplex740Systems User's Guide
Finding Information
DellOptiplex740Systems User's Guide
Drivers and Utilities Media
Quick Reference Guide
DellProductInformationGuide
Dell Support Website support.dell.com
Dell Support 3
Windows Welcome Center
Windows Help and Support
DellConnectServiceandSupport
Operating System Media
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
Glossary
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K
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Memory
DDR2 Memory Overview
Mini Tower, Desktop, and Small Form Factor Matched Pairs
Addressing Memory With 4-GB or Greater Configurations (32-bit Operating Systems Only)
Removing Memory
Installing Memory
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PCI Express Cards
Installing a PCI Express x1 Card
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Removing a PCI Express x1 Card
Installing PCI Express x16 Cards and DVI-Cards
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Removing PCI Express x16 Cards and DVI-Cards
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Power Cable Connectors
Connecting and Disconnecting Drive Cables
Removing a Hard Drive
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Adding a Second Hard Drive
Drive-Panel Inserts
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Removing the Floppy Drive
Installing the Floppy Drive
Media Card Reader
Removing the Media Card Reader
Installing the Media Card Reader
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Notes, Notices, and Cautions
Mini Tower Computer
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DC Power Connector P2
DC Power Connectors P3, P5, P8, and P9
DC Power Connector P7
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Mini Tower Computer (Model #DCSM) Specifications
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MicrosoftWindowsXP and Windows VistaFeatures
Transferring Information to a New Computer
Microsoft Windows Vista
MicrosoftWindowsXP
Running the Files and Settings Transfer Wizard With the Operating System Media
Running the Files and Settings Transfer Wizard Without the Operating System Media
User Accounts and Fast User Switching
Adding User Accounts
Fast User Switching
Setting Up a Home and Office Network
Connecting to a Network Adapter
Network Setup Wizard
Replacing the Computer Cover
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PCI Express and DVI Cards
Installing a PCI Express x16 Card or DVI Card
Removing a PCI Express x16 Card or DVI Card
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Connecting and Disconnecting Drive Cables
Removing a Hard Drive
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Replacing a Hard-Drive Fan
Removing an Optical Drive
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Floppy Drive and Media Card Reader
Removing a Floppy Drive or Media Card Reader
Installing a Floppy Drive or Media Card Reader
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Notes, Notices, and Cautions
Small Form Factor Computer
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DC Power Connector P2
DC Power Connectors P3
DC Power Connector P5
Small Form Factor Computer (Model # DCCY) Specifications
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Small Form Factor Computer
About Your Small Form Factor Computer
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Reinstalling Drivers and the Operating System
Drivers
What Is a Driver?
Identifying Drivers
Reinstalling Drivers and Utilities
Using Windows Vista Device Driver Rollback
Using Windows XP Device Driver Rollback
Using the Optional Drivers and Utilities media
Manually Reinstalling Drivers for Windows Vista
Using the Windows XP Drivers and Utilities Media
Restoring Your Operating System
Windows Vista
Starting System Restore
Undoing the Last System Restore
Windows XP
Reinstalling MicrosoftWindows Vistaand WindowsXP
Before You Begin
Booting From the Operating System Media
Windows XP Setup
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Solving Problems
DellOptiPlex740Systems User's Guide
Troubleshooting Tips
Battery Problems
Card Problems
Drive Problems
CD and DVD drive problems
Problems writing to an Optical-RW drive
Hard drive problems
E-Mail, Modem, and Internet Problems
Keyboard Problems
Fan Problems
Lockups and Software Problems
The computer does not start up
The computer stops responding
A program stops responding
Media Card Reader Problems
Memory Problems
Mouse Problems
Network Problems
Power Problems
Printer Problems
Restoring Default Settings
Serial or Parallel Device Problems
Sound and Speaker Problems
No sound from speakers
No sound from headphones
Video and Monitor Problems
If the screen is blank
If the screen is difficult to read
Chassis Intrusion Switch
Removing the Chassis Intrusion Switch
Mini Tower Computer
Desktop Computer
Small Form Factor Computer
Replacing the Chassis Intrusion Switch
Resetting the Chassis Intrusion Detector
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Replacing the System Board
Removing the System Board: Mini Tower, Desktop, and Small Form Factor Computers
Mini Tower System Board Screws
Desktop System Board Screws
Small Form Factor System Board Screws
Replacing the System Board: Mini Tower, Desktop, and Small Form Factor Computers
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Mini Tower Computer
About Your Mini Tower Computer
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Troubleshooting Tools and Utilities
Dell Diagnostics
When to Use the Dell Diagnostics
Starting the Dell Diagnostics From Your Hard Drive
Starting the Dell Diagnostics From the Drivers and Utilities Media (Optional)
System Lights
Diagnostic Lights
Beep Codes
Error Messages
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Resolving Software and Hardware Incompatibilities
MicrosoftWindowsXP
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Warranty