Dell 755 User Manual

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Page 1

Dell™ OptiPlex™ 755

User’s Guide

Models: DCTR, DCNE, DCSM, and DCCY

www.dell.com | support.dell.com

Page 2

Notes, Notices, and Cautions

NOTE: A NOTE indicates important information that helps you make better use of your computer.

NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the

problem.

CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.

If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable.

____________________

Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, OptiPlex, Trave lLite, OpenManage, and StrikeZone are trademarks of Dell Inc.; Intel,

SpeedStep, and Celeron are registered trademarks and Core and vPro are trademarks of Intel Corporation in the U.S and other countries; Microsoft, MS-DOS, Windows, Windows Vista, and the Windows Start button are either registered trademarks or trademarks of Microsoft

Corporation in the United States and/or other countries; Bluetooth is a trademark owned by Bluetooth SIG, Inc. and is used by Dell Inc. under license. ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Inc. has determined that this product meets the ENERGY STAR guidelines for energy efficiency.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

Models: DCTR, DCNE, DCSM, and DCC

September 2009 P/N JN460 Rev. A03

Page 3

Contents

1 Finding Information

2 Before You Begin

Recommended Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Turning Off Your Computer

. . . . . . . . . . . . . . . . . . . . . . . 21

Before Working Inside Your Computer

. . . . . . . . . . . . . . . . . . . 21

3 Mini Tower Computer

About Your Mini Tower Computer. . . . . . . . . . . . . . . . . . . . . . 23

Front View Back View Back Panel Connectors

Removing the Computer Cover

Inside Your Computer

Chassis Intrusion Switch

Removing the Chassis Intrusion Switch Replacing the Chassis Intrusion Switch Resetting the Chassis Intrusion Detector

System Board Components

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

. . . . . . . . . . . . . . . . . . . . . . . . 26

. . . . . . . . . . . . . . . . . . . . . . . 27

. . . . . . . . . . . . . . . . . . . . . . . . . . . 29

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. . . . . . . . . . . . . . . . 31

. . . . . . . . . . . . . . . . . . . . . . . . . 32

4 Mini Tower Computer Specifications

Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Installing a PCI or PCI Express Card Removing a PCI or PCI Express Card PS/2 Serial Port Adapter

. . . . . . . . . . . . . . . . . . . . . . . . 47

Installing a PS/2 Serial Port Adapter

Removing a PS/2 Serial Port Adapter

Installing eSATA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

. . . . . . . . . . . . . . . . . . 41

. . . . . . . . . . . . . . . . . . 45

. . . . . . . . . . . . . 47

. . . . . . . . . . . . . 49

Contents 3

Page 4

Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

General Drive Installation Guidelines

Connecting Drive Cables

Data Interface Connectors

Power Cable Connectors

Connecting and Disconnecting Drive Cables

Hard Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Removing a Hard Drive

Installing a Hard Drive

Adding a Second Hard Drive

Floppy Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Removing the Floppy Drive

Installing the Floppy Drive

Media Card Reader

. . . . . . . . . . . . . . . . . . . . . . . . . . 66

Removing the Media Card Reader

Installing the Media Card Reader

Optical Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Removing an Optical Drive

Installing an Optical Drive

. . . . . . . . . . . . . . . . . . 53

. . . . . . . . . . . . . . . . . . . 54

. . . . . . . . . . . . . . . . . . 54

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. . . . . . . . . . . . . . . . . . 64

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. . . . . . . . . . . . . . . . . . 69

. . . . . . . . . . . . . . . . . . 70

4 Contents

Processor

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Removing the Processor Installing the Processor

I/O Panel

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Removing the I/O Panel Replacing the I/O Panel

Power Supply

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Replacing the Power Supply DC Power Connectors

DC Power Connector P1

DC Power Connector P2

DC Power Connectors P3, P5, P8, and P9

DC Power Connector P7

DC Power Connector P10

Speakers

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Installing a Speaker Removing a Speaker

. . . . . . . . . . . . . . . . . . . . . . . . 73

. . . . . . . . . . . . . . . . . . . . . . . . 74

. . . . . . . . . . . . . . . . . . . . . . . . 77

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Page 5

5 Desktop Computer

About Your Desktop Computer . . . . . . . . . . . . . . . . . . . . . . . 87

Front View Back View Back Panel Connectors

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

. . . . . . . . . . . . . . . . . . . . . . . . 89

Removing the Computer Cover

Inside Your Computer

Chassis Intrusion Switch

Removing the Chassis Intrusion Switch Replacing the Chassis Intrusion Switch Resetting the Chassis Intrusion Detector

Removing the Heat Sink Assembly

System Board Components

. . . . . . . . . . . . . . . . . . . . . . . 90

. . . . . . . . . . . . . . . . . . . . . . . . . . . 91

. . . . . . . . . . . . . . . . . . . . . . . . . . 92

. . . . . . . . . . . . . . . . . 92

. . . . . . . . . . . . . . . . 93

. . . . . . . . . . . . . . . . . . . . . 94

. . . . . . . . . . . . . . . . . . . . . . . . . 95

6 Desktop Computer Specifications

Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

PCI Cards

PS/2 Serial Port Adapter

eSATA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Installing a PCI Card

Removing a PCI Card

Installing a PCI Card in the Riser-Card Cage

Removing a PCI Card From the Riser-Card Cage

Installing a PS/2 Serial Port Adapter

Removing a PS/2 Serial Port Adapter

. . . . . . . . . . . . . . . . . . . . 103

. . . . . . . . . . . . . . . . . . . 109

. . . . . . . . 111

. . . . . . . 114

. . . . . . . . . . . . . . . . . . . . . . . 116

. . . . . . . . . . . . 116

. . . . . . . . . . . . 118

Installing a PS/2 Serial Port Adapter in the Riser-Card Cage

. . . . . . . . . . . . . . . . . . . . . . 119

Removing a PS/2 Serial Port Adapter From the Riser-Card Cage

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Installing eSATA Without a Riser

Installing eSATA With a Riser

. . . . . . . . . . . . . . . . . . . . . . 121

. . . . . . . . . . . . . . 123

. . . . . . . . . . . . . . . 124

Contents 5

Page 6

Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

General Drive Installation Guidelines

Connecting Drive Cables

Data Interface Connectors

Power Cable Connectors

Connecting and Disconnecting Drive Cables

Drive Inserts

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Removing Drive Inserts

Replacing Drive Inserts

Optical Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Removing an Optical Drive

Installing an Optical Drive

Floppy Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Removing a Floppy Drive

Installing a Floppy Drive

Media Card Reader

. . . . . . . . . . . . . . . . . . . . . . . . . 137

Removing a Media Card Reader

Installing a Media Card Reader

Hard Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Removing a Hard Drive

Installing a Hard Drive

Replacing a Second Hard Drive

. . . . . . . . . . . . . . . . . 127

. . . . . . . . . . . . . . . . . . 128

. . . . . . . . . . . . . . . . . 128

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. . . . . . . . . . . . . . . . . . 142

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. . . . . . . . . . . . . . 146

6 Contents

Processor

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Removing the Processor Installing the Processor

I/O Panel

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Removing the I/O Panel Replacing the I/O Panel

Power Supply

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Replacing the Power Supply DC Power Connectors

DC Power Connector P1

DC Power Connector P2

DC Power Connector P3

DC Power Connector P4

DC Power Connector P5 and P6

. . . . . . . . . . . . . . . . . . . . . . . 149

. . . . . . . . . . . . . . . . . . . . . . . 150

. . . . . . . . . . . . . . . . . . . . . . . 153

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Page 7

Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Installing a Speaker Removing a Speaker

. . . . . . . . . . . . . . . . . . . . . . . . . 163

. . . . . . . . . . . . . . . . . . . . . . . . 163

7 Small Form Factor Computer

About Your Small Form Factor Computer . . . . . . . . . . . . . . . . . 165

Front View Back View Back Panel Connectors

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

. . . . . . . . . . . . . . . . . . . . . . . 167

Removing the Computer Cover

Inside Your Computer

Chassis Intrusion Switch

Removing the Chassis Intrusion Switch Replacing the Chassis Intrusion Switch Resetting the Chassis Intrusion Detector

System Board Components

Small Form Factor Computer Specifications

Cards

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

PCI Cards

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Installing a PCI Card

Removing a PCI Card

PCI Express and DVI Cards

Installing a PCI Express x16 Card or DVI Card

Removing a PCI Express x16 Card or DVI Card

PS/2 Serial Port Adapter

Installing a PS/2 Serial Port Adapter

Removing a PS/2 Serial Port Adapter

eSATA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Installing eSATA

. . . . . . . . . . . . . . . . . . . . . . 168

. . . . . . . . . . . . . . . . . . . . . . . . . . 169

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Drives

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

General Installation Guidelines

Connecting Drive Cables

Data Interface Connectors

. . . . . . . . . . . . . . . . . . . . 195

. . . . . . . . . . . . . . . . . . 196

. . . . . . . . . . . . . . . . . 196

Contents 7

Page 8

Power Cable Connectors . . . . . . . . . . . . . . . . . 196

Connecting and Disconnecting Drive Cables

Hard Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Removing a Hard Drive

Installing a Hard Drive

Replacing a Hard Drive Fan Optical Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

Removing an Optical Drive

Installing an Optical Drive

Floppy Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Removing a Floppy Drive

Installing a Floppy Drive

Media Card Reader

. . . . . . . . . . . . . . . . . . . . . . . . . 209

Removing a Media Card Reader

Replacing a Media Card Reader

. . . . . . . . 196

. . . . . . . . . . . . . . . . . . 197

. . . . . . . . . . . . . . . . . . . 199

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. . . . . . . . . . . . . . 211

Processor

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Removing the Processor Installing the Processor

I/O Panel

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

Removing the I/O Panel Replacing the I/O Panel

Power Supply

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Replacing the Power Supply DC Power Connectors

DC Power Connector P1

DC Power Connector P2

DC Power Connectors P3

DC Power Connector P5

DC Power Connector P6

Speakers

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Installing a Speaker Removing a Speaker

. . . . . . . . . . . . . . . . . . . . . . . 213

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. . . . . . . . . . . . . . . . . . . . . . . 217

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8 Contents

Page 9

8 Ultra Small Form Factor Computer

About Your Ultra Small Form Factor Computer. . . . . . . . . . . . . . . 227

Front View Side View Back View Back Panel Connectors

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

. . . . . . . . . . . . . . . . . . . . . . . 229

Connecting a VGA Monitor

Connecting Two Monitors

. . . . . . . . . . . . . . . . . 230

. . . . . . . . . . . . . . . . . 231

Removing the Computer Cover

Inside Your Computer

Chassis Intrusion Switch

Removing the Chassis Intrusion Switch Replacing the Chassis Intrusion Switch Resetting the Chassis Intrusion Detector

System Board Components

Cable Cover (Optional)

Attaching the Cable Cover

Removing the Cable Cover

Connecting the AC Power Adapter

Dell Badge

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

Ultra Small Form Factor Computer Specifications

Drives

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

General Installation Guidelines

Connecting Drive Cables

Data Interface Connectors

Power Cable Connectors

Connecting and Disconnecting Drive Cables

Hard Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

Installing a Hard Drive

Replacing a Hard Drive Fan

. . . . . . . . . . . . . . . . . . . . . . 232

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Contents 9

Page 10

Module Bay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

Installing a Device When Your Computer Is Turned Off Removing and Installing a Device When Your Computer Is Running

Microsoft Securing a Device in the Module Bay

Windows

. . . . . . . . . . . . . . . . . . . . . . . 258

. . . . . . . . . . . . . . . . 259

. . . . . . . . 255

Processor

Speakers

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

Installing a Speaker Removing a Speaker

. . . . . . . . . . . . . . . . . . . . . . . . . 267

. . . . . . . . . . . . . . . . . . . . . . . . 268

9 Advanced Features

LegacySelect Technology Control . . . . . . . . . . . . . . . . . . . . 269

Manageability

DASH Active Management Technology

Alert Standard Format Dell OpenManage™ Applications Dell Client Manager (DCM)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

. . . . . . . . . . . . . . . . . . . 270

iAMT Features

Out of Band Management

Accessing iAMT setup

Turning Off iAMT

USB Provisioning

Dell Client Manager (DCM) Console

. . . . . . . . . . . . . . . . . . . . . . 270

. . . . . . . . . . . . . . . . . 271

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10 Contents

Physical Security

Chassis Intrusion Detection Option Settings

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 274

. . . . . . . . . . . . . . . . . . . . . 274

. . . . . . . . . . . . . . . . . . . . . . . . . . . 274

Padlock Ring and Security Cable Slot

Trusted Platform Module (TPM)

Enabling the TPM Feature

Security Management Software

Computer Tracking Software

. . . . . . . . . . . . . . . . . . . . . 275

. . . . . . . . . . . . . . . . . . . . . . 275

. . . . . . . . . . . . . . . . . . . . . 276

. . . . . . . . . . . . . . . . . . . . . . . 276

About Smart Cards and Fingerprint Readers

. . . . . . . . . . . . . . . . 274

. . . . . . . . . . . . . . . . 276

Page 11

Password Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . 277

System Password

Option Settings

Assigning a System Password

Typing Your System Password

Deleting or Changing an Existing System Password

Administrator Password

Option Settings

Assigning an Administrator Password

. . . . . . . . . . . . . . . . . . . . . . . . . . 277

. . . . . . . . . . . . . . . . . . . . . . 277

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. . . . . 278

. . . . . . . . . . . . . . . . . . . . . . . 279

. . . . . . . . . . . . . . . . . . . . . . 279

. . . . . . . . . . . 279

Operating Your Computer With an Administrator Password Enabled

Deleting or Changing an Existing Administrator Password

Disabling a Forgotten Password and Setting a New Password

. . . . . . . . . . . . . . . . . . . . . 279

. . 280

. . . . . 280

System Setup

Overview Entering System Setup System Setup Screens System Setup Options Boot Sequence

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280

. . . . . . . . . . . . . . . . . . . . . . . . 280

. . . . . . . . . . . . . . . . . . . . . . . . 281

. . . . . . . . . . . . . . . . . . . . . . . . . . . 287

Option Settings

. . . . . . . . . . . . . . . . . . . . . . 287

Changing Boot Sequence for the Current Boot

Changing Boot Sequence for Future Boots

Booting to a USB Device

Memory Key Floppy Drive

Jumper Settings

Clearing Forgotten Passwords

Clearing CMOS Settings

Hyperthreading and Multi-Core Technology

. . . . . . . . . . . . . . . . . . . . . . . . . 288

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 289

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289

. . . . . . . . . . . . . . . . . . . . . . 290

. . . . . . . . . . . . . . . . . . . . . . . . . 291

. . . . . . . . . . . . . . . . 292

Power Management for Windows XP and Windows Vista

Options in Windows XP

Standby Mode

Hibernate Mode

Power Options Properties

Power Schemes Tab

. . . . . . . . . . . . . . . . . . . . . . . 292

. . . . . . . . . . . . . . . . . . . . . . 292

. . . . . . . . . . . . . . . . . . . . . . 293

. . . . . . . . . . . . . . . . . 293

. . . . . . . . . . . . . . . . . . . 293

. . . . . . . 287

. . . . . . . . . 288

. . . . . . . . . 292

Contents 11

Page 12

Advanced Tab. . . . . . . . . . . . . . . . . . . . . . . 294

Hibernate Tab

Options in Windows Vista

Sleep Mode

. . . . . . . . . . . . . . . . . . . . . . . . 295

Hibernate Mode

Configuring Power Management Settings

. . . . . . . . . . . . . . . . . . . . . . . 294

. . . . . . . . . . . . . . . . . . . . . . 294

. . . . . . . . . . . . . . . . . . . . . . 295

. . . . . . . . . 295

About RAID Configurations

Verifying That RAID Is Working RAID Level 0

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 296

RAID Level 1 Configuration Configuring Your Computer for RAID

Setting Your Computer to RAID-Enabled Mode

. . . . . . . . . . . . . . . . . . . . . . . . 295

. . . . . . . . . . . . . . . . . . . 296

. . . . . . . . . . . . . . . . . . . . . 297

. . . . . . . . . . . . . . . . . 297

. . . . . . . 297

Configuring Your Computer for RAID Using the Intel RAID Option ROM Utility

. . . . . . . . . . . . . . . . . . . . . 298

Configuring Your Computer for RAID Using the Intel Matrix Storage Manager

. . . . . . . . . . . . . . . . . . . . . 299

Recovering From a Single Hard Drive Failure (RAID 1) Using the Intel Matrix Storage Manager

Migrating to a RAID Level 0 Configuration Migrating to a RAID Level 1 Configuration

. . . . . . . . . . . . . . . . . . . . . . 300

. . . . . . . . . . . . . . 301

10 Battery

Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 303

11 Replacing the System Board

Removing the System Board: Mini Tower, Desktop, Small Form Factor, and Ultra Small Form Factor Computers

Mini Tower System Board Screws Desktop System Board Screws Small Form Factor System Board Screws Ultra Small Form Factor System Board Screws

. . . . . . . . . . . . . . . . . . . . 307

. . . . . . . . . . . . . . . . . . 308

. . . . . . . . . . . . . . . . . . . 309

. . . . . . . . . . . . . . . 310

. . . . . . . . . . . . 311

12 Contents

Replacing the System Board: Mini Tower, Desktop, Small Form Factor, and Ultra Small Form Factor Computers

. . . . . . . . . . . . . . . . . . . . 311

Page 13

12 Memory

DDR2 Memory Overview. . . . . . . . . . . . . . . . . . . . . . . 313

Addressing Memory Configurations Installing Memory Removing Memory

. . . . . . . . . . . . . . . . . . . . . . . . . . 314

. . . . . . . . . . . . . . . . . . . . . . . . . 316

. . . . . . . . . . . . . . . . . 314

13 Replacing the Computer Cover

Mini-Tower, Desktop, and Small Form Factor Computers . . . . . . . . . 317

Ultra Small Form Factor Computers

. . . . . . . . . . . . . . . . . . . . 317

14 Installing Your Computer in an Enclosure

15 Cleaning Your Computer

Computer, Keyboard, and Monitor . . . . . . . . . . . . . . . . . . . . 323

Mouse

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

Cleaning a Non-Optical Mouse Cleaning an Optical Mouse

Floppy Drive

CDs and DVDs

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

. . . . . . . . . . . . . . . . . . . . 323

. . . . . . . . . . . . . . . . . . . . . 323

16 Microsoft® Windows® Features

Transferring Information to a New Computer . . . . . . . . . . . . . . . 325

Microsoft

Microsoft Windows Vista

Windows® XP . . . . . . . . . . . . . . . . . . . . . . 325

Running the Files and Settings Transfer Wizard With the Operating System Media

. . . . . . . . . . . . . . . . . . . . . . . 325

Running the Files and Settings Transfer Wizard Without the Operating System Media

. . . . . . . . . . . . . . . . . . . . . . . 326

. . . . . . . . . . . . . . . . . . . . . 327

Setting Up a Home and Office Network

Connecting to a Network Adapter

. . . . . . . . . . . . . . . . . . 328

Contents 13

Page 14

Network Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

Windows XP

Windows Vista

17 Troubleshooting

Battery Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 331

Card Problems Drive Problems

Optical drive problems

Problems writing to an optical drive

Hard drive problems

E-Mail, Modem, and Internet Problems Error Messages Keyboard Problems Lockups and Software Problems

The computer does not start up

The computer stops responding

A program stops responding

A program crashes repeatedly

A program is designed for an earlier Windows operating system

A solid blue screen appears

Finding Information

NOTE: Some features or media may be optional and may not ship with your computer. Some features or media may

not be available in certain countries.

NOTE: Additional information may ship with your computer.

What Are You Looking For? Find It Here

• A diagnostic program for my computer

• Drivers for my computer

• My computer documentation

• My device documentation

• Desktop System Software (DSS)

Drivers and Utilities CD or DVD

NOTE: The Drivers and Utilities media may be optional and

may not ship with your computer.

Documentation and drivers are already installed on your computer. You can use the media to reinstall drivers (see "Reinstalling Drivers and Utilities" on page 357), to run the Dell Diagnostics (see "Dell Diagnostics" on page 353), or to access your documentation.

Readme files may be included on your media to provide last-minute updates about technical changes to your computer or advanced technicalreference material for technicians or experienced users.

• How to set up my computer

• Basic troubleshooting information

• How to run the Dell Diagnostics

• Tools and utilities

NOTE: Drivers and documentation updates can be found at

support.dell.com.

Quick Reference Guide

NOTE: This document may be optional and may not ship with

your computer.

NOTE: This document is available as a PDF at

support.dell.com.

Finding Information 17

Page 18

What Are You Looking For? Find It Here

• Warranty information

• Terms and Conditions (U.S. only)

• Safety instructions

• Regulatory information

• Ergonomics information

• End User License Agreement

Dell™ Product Information Guide

• How to remove and replace parts

• Specifications

• How to configure system settings

• How to troubleshoot and solve problems

• Service Tag and Express Service Code

• Microsoft Windows License Label

Dell™ OptiPlex™ User’s Guide

Microsoft Windows Help and Support Center

Click

Start

→

Help and Support→ Dell User

→

and System Guides

Click the

Service Tag and Microsoft® Windows® License

These labels are located on your computer.

• Use the Service Tag to identify your computer when you use

• Enter the Express Service Code to direct your call when contacting support.

User’s Guide

support.dell.com

System Guides

for your computer.

or contact support.

NOTE: As an increased security measure, the newly

designed Microsoft Windows license label incorporates a missing portion or "hole" to discourage removal of the label.

18 Finding Information

Page 19

What Are You Looking For? Find It Here

• Solutions — Troubleshooting hints and tips, articles from technicians, and online courses, frequently asked questions

Dell Support Website — support.dell.com

NOTE: Select your region or business segment to view the

appropriate support site.

• Community — Online discussion with other Dell customers

• Upgrades — Upgrade information for components, such as memory, the hard drive, and the operating system

• Customer Care — Contact information, service call and order status, warranty, and repair information

• Service and support — Service call status and support history, service contract, online discussions with technical support

• Dell Technical Update Service — Proactive e-mail notification of software and hardware updates for your computer

• Reference — Computer documentation, details on my computer configuration, product specifications, and white papers

• Downloads — Certified drivers, patches, and software updates

• Desktop System Software (DSS)— If you reinstall the operating system for your computer, you should also reinstall the DSS utility. DSS provides critical updates for your operating system and support for processors, optical drives, USB devices, and so on. DSS is necessary for correct operation of your Dell computer. The software automatically detects your computer and

To download Desktop System Software:

Go to segment, and enter your Service Tag.

Select

Click your operating system and search for the keyword

Desktop System Software

NOTE: The support.dell.com user interface may vary

depending on your selections.

operating system and installs the updates appropriate for your configuration.

• How to use Windows XP

• How to work with programs and files

• How to personalize my desktop

Windows Help and Support

To access Windows Help and Support:

• In Windows XP, click

• In Windows Vista button

Type a word or phrase that describes your problem, and then click the arrow icon.

Click the topic that describes your problem.

Follow the instructions on the screen.

support.dell.com

, select your region or business

Drivers & Downloads

Start and click

, click the Windows Vista Start

and click

Help and Support

and click Go.

Help and Support

Finding Information 19

Page 20

What Are You Looking For? Find It Here

• How to reinstall my operating system

Operating System Media

NOTE: The Operating System media may be optional and may

not ship with your computer.

The operating system is already installed on your computer. To reinstall your operating system, use the Operating System media. See "Reinstalling Windows XP or Windows Vista" on page 363.

NOTE: The color of your media varies based on the operating

system you ordered.

After you reinstall your operating system, use the Drivers and Utilities media to reinstall drivers for the devices that came with your computer.

Your operating system product key label is located on your computer.

20 Finding Information

Page 21

Before You Begin

This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist:

• You have performed the steps in "Turning Off Your Computer" on page 21 and "Before Working Inside Your Computer" on page 21.

• You have read the safety information in your Dell™

• A component can be replaced by performing the removal procedure in reverse order.

Recommended Tools

The procedures in this document may require the following tools:

• Small flat-blade screwdriver

• Phillips screwdriver

• Flash BIOS update program floppy disk or CD

Turning Off Your Computer

NOTICE: To avoid losing data, save and close all open files and exit all open programs before you turn off your

computer.

Shut down the operating system:

Save and close all open files and exit all open programs.

In the Microsoft® Windows® XP operating system

Product Information Guide.

, click

Start→

Shut Down→

Shut down

In Microsoft Windows Vista®,

corner of the desktop, click the arrow in the lower-right corner of the Start menu as shown below, and then click

The computer turns off after the operating system shutdown process is complete.

NOTICE: Ensure that the computer and all attached devices are turned off. If your computer and attached devices

did not automatically turn off when you shut down your operating system, press and hold the power button for about 4 seconds to turn them off.

Shut Down

click the Windows Vista Start button™, , in the lower-left

Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety.

Before You Begin 21

Page 22

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product

Information Guide.

CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a

card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.

NOTICE: Many repairs may only be done by a certified service technician. You should only perform

troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

NOTICE: When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself.

Some cables have a connector with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and aligned.

NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside the

computer.

Turn off your computer.

NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the

network wall jack.

Disconnect any telephone or telecommunication lines from the computer.

Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.

If applicable, remove the computer stand (for instructions, see the documentation that came with the stand) and the cable cover, if attached (see "Cable Cover (Optional)" on page 237).

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

removing the cover.

Remove the computer cover.

• For a mini tower computer, see "Removing the Computer Cover" on page 27.

• For a desktop computer, see "Removing the Computer Cover" on page 90.

• For a small form factor computer, see "Removing the Computer Cover" on page 168.

• For an ultra small form factor computer, see "Removing the Computer Cover" on page 232.

NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface,

such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.

22 Before You Begin

Page 23

Mini Tower Computer

About Your Mini Tower Computer

Front View

23 Mini Tower Computer

Page 24

1 5.25-inch drive bay Can contain an optical drive. Insert a CD or DVD (if supported) into this drive.

2 5.25-inch drive bay Can contain an optical drive. Insert a CD or DVD (if supported) into this drive.

3 3.5-inch drive bay Can contain an optional floppy drive or optional media card reader.

4 USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such as

joysticks or cameras, or for bootable USB devices (see your online User’s Guide for more information on booting to a USB device).

It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards.

5 LAN indicator light This light indicates that a LAN (local area network) connection is established.

6 diagnostic lights Use the lights to help you troubleshoot a computer problem based on the diagnostic

code. For more information, see "Diagnostic Lights" on page 347.

7 power button Press this button to turn on the computer.

NOTICE: To avoid losing data, do not turn off the computer by pressing the power

button. Instead, perform an operating system shutdown. See "Before You Begin" on page 21 for more information.

NOTICE: If your operating system has ACPI enabled, when you press the power

button the computer will perform an operating system shutdown.

8 power light The power light illuminates and blinks or remains solid to indicate different operating

modes:

• No light — The computer is turned off.

• Steady green — The computer is in a normal operating state.

• Blinking green — The computer is in a power-saving mode.

• Blinking or solid amber — The computer is receiving electrical power, but an internal power problem may exist (see "Power Problems" on page 339).

To exit from a power-saving mode, press the power button or use the keyboard or the mouse if it is configured as a wake device in the Windows Device Manager. For more information about sleep modes and power-saving mode, see "Advanced Features" on page 269.

See "Diagnostic Lights" on page 347 for a description of light codes that can help you troubleshoot problems with your computer.

9 hard drive activity light This light flickers when the hard drive is being accessed.

10 headphone connector Use the headphone connector to attach headphones and most kinds of speakers.

11 microphone connector Use the microphone connector to attach a microphone.

24 Mini Tower Computer

Page 25

Back View

1 cover-release latch This latch allows you to open the computer cover.

2 padlock ring Insert a padlock to lock the computer cover.

3 voltage selection switch Your computer is equipped with a manual voltage-selection switch. To help avoid

damaging a computer with a manual voltage-selection switch, set the switch for the voltage that most closely matches the AC power available in your location.

NOTICE: In Japan, the voltage selection switch must be set to the 115-V position.

Also, ensure that your monitor and attached devices are electrically rated to operate with the AC power available in your location.

25 Mini Tower Computer

Page 26

4 power connector Insert the power cable.

98 7

5 back panel connectors Plug serial, USB, and other devices into the appropriate connectors. See "Back Panel

Connectors" on page 26.

6 card slots (4) Access connectors for any installed PCI or PCI Express cards, PS/2 connector, eSATA

connector, etc.

Back Panel Connectors

1 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have a

USB printer, plug it into a USB connector.

NOTE: The integrated parallel connector is automatically disabled if the computer

detects an installed card containing a parallel connector configured to the same address. For more information, see "System Setup Options" on page 281.

2 link integrity light

• Green — A good connection exists between a 10-Mbps network and the

computer.

• Orange — A good connection exists between a 100-Mbps network and the

computer.

• Yellow — A good connection exists between a 1-Gbps (or 1000-Mbps) network

and the computer.

• Off — The computer is not detecting a physical connection to the network.

26 Mini Tower Computer

Page 27

3 network adapter

connector

To attach your computer to a network or broadband device, connect one end of a network cable to either a network jack or your network or broadband device. Connect the other end of the network cable to the network adapter connector on the back panel of your computer. A click indicates that the network cable has been securely attached.

NOTE: Do not plug a telephone cable into the network connector.

For VPro to work, the network cable must be connected to the onboard NIC.

It is recommended that you use Category 5 wiring and connectors for your network. If you must use Category 3 wiring, force the network speed to 10 Mbps to ensure reliable operation.

4 network activity light Flashes a yellow light when the computer is transmitting or receiving network

data. A high volume of network traffic may make this light appear to be in a steady "on" state.

5 line-out connector Use the green line-out connector to attach headphones and most speakers with

integrated amplifiers.

6 line-in/microphone

connector

7 USB 2.0 connectors (6) Use the back USB connectors for devices that typically remain connected, such as

8 video connector Plug the cable from your VGA-compatible monitor into the blue connector.

Use the blue and pink line-in/microphone connector to attach a record/playback device such as a cassette player, CD player, or VCR.; or a personal computer microphone for voice or musical input into a sound or telephony program.

printers and keyboards.

NOTE: If you purchased an optional graphics card, this connector will be covered by

a cap. Connect your monitor to the connector on the graphics card. Do not remove the cap.

NOTE: If you are using a graphics card that supports dual monitors, use the y-cable

that came with your computer.

9 serial connector Connect a serial device, such as a handheld device, to the serial port. The default

designations are COM1 for serial connector 1 and COM2 for serial connector 2.

For more information, see "System Setup Options" on page 281.

Removing the Computer Cover

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

removing the computer cover.

Follow the procedures in "Before You Begin" on page 21.

Lay the computer on its side as shown in the illustration.

Locate the cover release latch shown in the illustration. Then, slide the release latch back as you lift the cover.

27 Mini Tower Computer

Page 28

Grip the sides of the computer cover and pivot the cover up using the hinge tabs as leverage points.

Remove the cover from the hinge tabs and set it aside on a soft nonabrasive surface.

CAUTION: Graphics card heat sinks can become very hot during normal operation. Ensure that a graphics card

heat sink has had sufficient time to cool before you touch it.

1 security cable slot 2 cover release latch 3 padlock ring

28 Mini Tower Computer

Page 29

Inside Your Computer

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing

the computer cover.

NOTICE: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables

from the system board.

1 optical drive 2 disk drive 3 power supply

4 optional chassis-intrusion

switch

7 hard drive

5 system board 6 heat sink assembly

Chassis Intrusion Switch

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

NOTE: The chassis intrusion switch is standard on the ultra small form factor computer but is optional on mini

tower, desktop and small form factor computers; it may not be present on your computer.

29 Mini Tower Computer

Page 30

Removing the Chassis Intrusion Switch

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Disconnect the chassis intrusion switch cable from the system board by using two fingers to squeeze the release mechanism on one side of the connector as you pull to disconnect the cable connector.

Slide the chassis intrusion switch out of its slot in the metal bracket, and then push it down through the square hole in the bracket to remove the switch and its attached cable from the computer.

NOTE: You may feel a slight resistance as you slide the switch out of the slot.

Replacing the Chassis Intrusion Switch

Gently insert the switch from underneath the metal bracket into the square hole in the bracket, and then slide the chassis intrusion switch into its slot until you feel it snap securely into place.

Reconnect the cable to the system board.

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

30 Mini Tower Computer

Page 31

Resetting the Chassis Intrusion Detector

Turn on (or restart) your computer.

When the blue DELL™ logo appears, press <F2> immediately.

If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft

Select the the setting to

Save your BIOS settings and exit system setup.

Windows® desktop. Then shut down your computer and try again.

Chassis Intrusion

On, On-Silent

NOTE: The default setting is On-Silent.

option and then press the left- or right-arrow key to select

, or

Disabled

Reset

. Change

Mini Tower Computer 31

Page 32

System Board Components

14 12

1 speaker connector (INT_SPKR) 12 RTC reset jumper (RTCRST)

2 fan (FAN_CPU) 13 intrusion switch connector (INTRUDER)

3 processor connector (CPU) 14 battery socket (BATTERY)

4 processor power connector (12VPOWER) 15 PCI Express x16 connector (SLOT1)

5 memory module connectors (DIMM_1,

DIMM_2, DIMM_3, DIMM_4)

16 PCI Express x1 connector (SLOT4)

32 Mini Tower Computer

Page 33

6 password jumper (PSWD) 17 PCI connector (SLOT2)

7 SATA drive connectors (SATA0, SATA1, SATA2,

SATA3)

8 front-panel connector (FRONTPANEL) 19 serial connector (SERIAL2)

9 power connector (POWER) 20 system board speaker (BEEP)

10 external SATA connector (eSATA) 21 aux power LED (aux_LED)

11 internal USB (INT_USB) 22 floppy connector (DSKT)

18 PCI connector (SLOT3)

Mini Tower Computer 33

Page 34

34 Mini Tower Computer

Page 35

Mini Tower Computer Specifications

Microprocessor

Microprocessor type The following are supported:

•Intel® Core™2

• Intel vPro™

• Intel Celeron

Internal cache L1: up to 128 KB;

L2: up to 8 MB (depending on your processor)

Memory

Type 667-MHz or 800-MHz DDR2 SDRAM

Memory connectors 4

Memory modules supported 512-MB, 1-GB, or 2-GB non-ECC

Minimum memory dual-channel: 1 GB

single-channel: 512 MB

NOTE: 512 MB is the minimum shipping configuration.

Maximum memory 64-bit operating system: 8 GB

32-bit operating system: 4 GB

BIOS address F0000h

Computer Information

Chipset Intel Q35 Express Chipset w/ICH9DO

Data bus width 64 bits

Address bus width 32 bits

DMA channels eight

Interrupt levels 24

BIOS chip (NVRAM) 32 Mb

NIC integrated network interface with ASF 1.03 and 2.0 support as

defined by DMTF

Capable of 10/100/1000 communication

iAMT 3.0

Mini Tower Specifications 35

Page 36

Video

Type Intel Graphics Media Accelerator 3100 or DVI add-in card in PCI

Express x16 slot or PCI Express x16 graphics card

Audio

Type ADI 1984 High Definition Audio

Stereo conversion 24-bit analog-to-digital; 24-bit digital-to-analog

Controllers

Drives four SATA controllers and one eSATA controller supporting one

device each

Expansion Bus

Bus type PCI 2.3

PCI Express 1.0A SATA 1.0A and 2.0 USB 2.0

Bus speed PCI: 133 MB/s

PCI Express x16: 8 GB/s bidirectional speed PCI Express x1: 5 Gbps SATA: 1.5 Gbps and 3.0 Gbps USB: 480 Mbps

Cards: full-height cards supported

PCI:

connectors

connector size

connector data width (maximum)

PCI Express:

connectors

power

connector size

connector data width (maximum)

two

two 164 pin connectors

32 bits

one x1 and one x16

10 W (x1) and 75 W (x16) maximum

36 pins (x1) and 164 pins (x16)

one PCI Express lane (x1) and 16 PCI Express lanes (x16)

36 Mini Tower Specifications

Page 37

Drives

Internally accessible

• Two SATA (Serial ATA) hard drives

• One3.5-inch floppy drive or media reader

• Two SATA optical drives

Externally accessible One eSATA drive (optional)

Connectors

External connectors:

Serial

Parallel

Video

Network adapter

Optional PS/2 with secondary

9-pin connector; 16550C-compatible

25-pin connector (bidirectional)

15-pin VGA connector

RJ45 connector

two 6-pin mini-DINs

serial port adapter

USB

Audio

two front-panel and six back panel USB 2.0–compliant connectors

two connectors for line-in/ microphone and line-out; two frontpanel connectors for headphones and microphone

System board connectors:

SATA

eSATA

Floppy drive

Serial

Fan

PCI 2.2

PCI Express

Front panel

four 7-pin connectors

one 7-pin connector

34-pin connector

12-pin connector for optional second PS/2 serial port card

5-pin connector

three 120-pin connectors

one 120-pin (x16) connector

40-pin connector

Key Combinations

<Ctrl><Alt><Del> In Microsoft

window. If in MS-DOS

Windows® XP, brings up the Windows Security

mode, restarts (reboots) the computer.

<F2> or <Ctrl><Alt><Enter> starts embedded system setup (during start-up only)

<F3> automatically starts the computer from the network environment

specified by the remote boot environment (PXE) rather than from one of the devices in the system setup Boot Sequence option (during start-up only)

Mini Tower Specifications 37

Page 38

Key Combinations

<F12> or <Ctrl><Alt><F8> displays a boot device menu that allows the user to enter a device

for a single boot (during start-up only) as well as options to run hard drive and system diagnostics

<Ctrl><p> displays the Management Engine BIOS Extension settings screen

that allows you to modify the settings

Controls and Lights

Power control push button

Power light green light — blinking green indicates sleep mode; solid green

indicates power-on state.

amber light — blinking amber indicates a problem with an installed device; solid amber indicates an internal power problem (See "Power Problems" on page 339.)

hard drive access light green

Link light (on front of chassis) solid green light indicates network connection

Link integrity light (on integrated network adapter)

Activity light (on integrated network adapter)

Diagnostic lights four lights on the front panel (See "Diagnostic Lights" on

Standby power light AUX_PWR on the system board

green light for 10-Mb operation; orange light for 100-Mb operation; yellow light for a 1000-Mb (1-Gb) operation

yellow blinking light

page 347.)

Power

DC power supply:

Wattage

Heat dissipation

NOTE: Power consumption from an AC power source can be zero

when the computer is unplugged from that power source. However, the computer draws a minute amount of power from the internal coin cell battery even when the computer is not drawing power from the AC power source.

305 W

1041 BTU/hr

NOTE: Heat dissipation is calculated based upon the power supply

rating.

Vo lt ag e

Backup battery 3-V CR2032 lithium coin cell

manual selection power supplies—90 to 135 V at 60 Hz; 180 to 265 V at 50 Hz

38 Mini Tower Specifications

Page 39

Physical

Height

Width

Depth

We ig ht

Environmental

Temperature:

Operating

Storage

Relative humidity 20% to 80% (noncondensing)

Maximum vibration:

Operating

Storage

Maximum shock:

Operating

Storage

Altitude:

Operating

Storage

Airborne contaminant level G2 or lower as defined by ISA-S71.04-1985

41.4 cm (16.3 inches)

18.5 cm (7.3 inches)

43.9 cm (17.3 inches)

12.34 kg (27.2 lb)

10° to 35°C (50° to 95°F)

–40° to 65°C (–40° to 149°F)

0.25 G at 3 to 200 Hz at 0.5 octave/min

0.5 G at 3 to 200 Hz at 1 octave/min

bottom half-sine pulse with a change in velocity of 50.8 cm/sec (20 inches/sec)

27-G faired square wave with a velocity change of 508 cm/sec (200 inches/sec)

–15.2 to 3048 m (–50 to 10,000 ft)

–15.2 to 10,668 m (–50 to 35,000 ft)

Mini Tower Specifications 39

Page 40

40 Mini Tower Specifications

Page 41

Cards

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your

body before you touch any of your computer’s electronic components. You can do so by touching an unpainted metal surface on the computer chassis.

NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the

computer. The brackets keep dust and dirt out of your computer and maintains the airflow that cools your computer.

Your Dell™ computer supports a PS/2 serial port adapter and provides the following connectors for PCI and PCI Express cards:

• Two PCI card slots

• One PCI Express x16 card slot

• One PCI Express x1 card slot

1 PCI Express x16 card 4 PCI Express x1 card

2 securing tab (only for PCI

Express cards)

3 PCI Express x16 card slot

Installing a PCI or PCI Express Card

NOTE: Your Dell computer uses only PCI and PCI Express slots.

NOTE: The serial port adapter for your mini tower computer includes two PS/2 connectors.

5 PCI Express x1 card slot

Cards 41

Page 42

If you are replacing a card, uninstall the driver for the existing card. See the documentation that came

with the card for instructions.

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position.

1 card retention latch 2 alignment guide 3 card

4 card-edge connector 5 card connector 6 release tab

If you are installing a new card, remove the filler bracket to create a card-slot opening. Then continue with step 5.

If you are replacing a card that is already installed in the computer, remove the card. If necessary, disconnect any cables connected to the card.

If your card includes a card retention bar, remove the bar. Gently pull the securing tab, grasp the card by its top corners, and ease it out of its connector.

Prepare the new card for installation.

NOTE: See the documentation that came with the card for information on configuring the card, making internal

connections, or customizing it for your computer

42 Cards

Page 43

CAUTION: Some network adapters automatically start the computer when they are connected to a network. To

guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards.

If you are installing the card into the x16 card connector, position the card so that the securing slot is aligned with the securing tab, and gently pull the securing tab.

1 PCI Express x16 card 2 lever 3 securing slot (not all cards)

4 securing tab 5 PCI Express x16 card connector

Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot.

Cards 43

Page 44

1 card fully seated 2 card not fully seated

3 bracket within slot 4 bracket caught outside of slot

Before you lower the card retention mechanism, ensure that:

• The tops of all cards and filler brackets are flush with the alignment bar.

• The notch in the top of the card or filler bracket fits around the alignment guide.

Secure the card(s) by closing the card retention latch and snapping it into place.

NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the

computer cover from closing properly or cause damage to the equipment.

Connect any cables that should be attached to the card.

See the documentation for the card for information about the card’s cable connections.

Replace the computer cover (see "Replacing the Computer Cover" on page 317), reconnect the computer and devices to electrical outlets, and then turn them on.

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the

computer.

44 Cards

Page 45

If you installed a sound card:

Enter system setup, select

Audio Controller

, and change the setting to

Off

(see "System

Setup" on page 280).

Connect external audio devices to the sound card’s connectors. Do not connect external audio devices to the microphone, speaker/headphone, or line-in connectors on the back panel of the computer.

If you installed an network adapter card and want to turn off the integrated network adapter:

Enter system setup, select

Network Controller

, and change the setting to

Off

"System Setup" on page 280).

Connect the network cable to the network adapter card’s connectors. Do not connect the network cable to the integrated network connector on the back panel of the computer.

NOTICE: If you disable the integrated network adapter, you will not have AMT functionality.

Install any drivers required for the card as described in the card documentation.

Removing a PCI or PCI Express Card

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position.

(see

Cards 45

Page 46

1 card retention latch 2 alignment guide 3 card

4 card-edge connector 5 card connector 6 release tab

If necessary, disconnect any cables connected to the card.

If you are removing the card permanently, install a filler bracket in the empty card-slot opening.

NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of

the computer. The brackets keep dust and dirt out of your computer and maintains the airflow that cools your

computer.

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the

computer.

Replace the computer cover (see "Replacing the Computer Cover" on page 317), reconnect the computer and devices to electrical outlets, and then turn them on.

Uninstall the card’s driver. See the documentation that came with the card for instructions.

If you removed a sound card:

Enter system setup, select

Audio Controller

, and change the setting to On (see "System Setup" on

page 280).

Connect external audio devices to the audio connectors on the back panel of the computer.

46 Cards

Page 47

If you removed a network-adapter card connector:

Enter system setup, select

Network Controller

, and change the setting to On (see "System Setup"

on page 280).

Connect the network cable to the integrated network connector on the back panel of the computer.

PS/2 Serial Port Adapter

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your

body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.

Installing a PS/2 Serial Port Adapter

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position

1 card retention latch 2 alignment guide

Cards 47

Page 48

Remove the filler bracket (if applicable).

NOTE: See the documentation that came with the PS/2 serial port adapter for information on configuring the

adapter, making internal connections, or customizing it for your computer.

Align the PS/2 serial-port adapter bracket in the retention slot and press down firmly. Ensure that the adapter is fully seated in the slot.

1 card fully seated 2 card not fully seated

3 bracket within slot 4 bracket caught outside of slot

efore you close the card retention mechanism, ensure that:

• The tops of all adapters and filler brackets are flush with the alignment bar.

• The notch in the top of the adapter or filler bracket fits around the alignment guide.

Close the card retention latch and gently press until it snaps into place.

NOTICE: Do not route cables over any installed cards. Cables routed over the cards can prevent the computer

cover from closing properly or cause damage to the equipment.

Connect the adapter cable to the serial port adapter connector (SERIAL2) on the system board (see "System Board Components" on page 32 for connector locations).

48 Cards

Page 49

NOTE: See the documentation for the PS/2 serial port adapter for information about the cable connections.

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

Removing a PS/2 Serial Port Adapter

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position.

Cards 49

Page 50

1 card retention latch 2 alignment guide

Disconnect the PS/2 serial adapter cable from the system board (see "System Board Components" on page 32).

If necessary, disconnect any external cables connected to the adapter.

Ease the PS/2 serial-port adapter bracket out of its retention slot.

If you are removing the adapter permanently, install a filler bracket in the empty card-slot opening.

NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of

the computer. The brackets also keep dust and dirt out of your computer and maintains the airflow that cools your computer.

Before you close the card retention mechanism, ensure that:

• The tops of all cards and filler brackets are flush with the alignment bar.

• The notch in the top of the card or filler bracket fits around the alignment guide.

Secure the card(s) by closing the card retention latch and snapping it into place.

Replace the computer cover (see"Replacing the Computer Cover" on page 317).

50 Cards

Page 51

Installing eSATA

eSATA allows for full SATA data transfer rates (3 GB/sec) between a drive and the chipset, approximately six times the data throughput of USB.

eSATA on your computer also supports hot-plugging. Hot-plugging allows for device detection without powering down your computer prior to connecting the device to your computer. When a device is connected, the operating system automatically recognizes the change. However, the computer must be powered down before removal and/or replacement.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

NOTE: To prevent static damage to components inside your computer, discharge static electricity from your body

before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Remove the filler panel for the card slot you are using for the eSATA connector.

Mount the bracket into the desired card slot opening.

Cards 51

Page 52

Plug the free end of the eSATA cable into the eSATA connector on the system board.

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

Boot your computer and enter system setup (see "Entering System Setup" on page 280). Use the

esata option to enable the esata drive.

52 Cards

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Drives

Your computer supports:

• Two SATA (Serial ATA) hard drives

• One 3.5-inch floppy drive or media card reader

• Two SATA optical drives

• One eSATA drive (with optional bracket)

1 optical drive 2 3.5-inch drive or media card

reader

3 hard drive

General Drive Installation Guidelines

SATA connectors on the system board are labeled SATA0, SATA1, SATA2, and SATA3.

Hard drives must be connected to the lower numbered SATA connectors, while any other SATA devices (like an optical drive) must be connected to the remaining SATA connectors numbered higher than the one that the hard drive(s) is connected to. For example, if you have two SATA hard drives and one SATA optical drive, connect the two hard drives to the SATA0 and SATA1 connectors, and connect the SATA optical drive to the SATA2 connector. (See "System Board Components" on page 32 for the location of SATA connectors on the system board.)

Drives 53

Page 54

Connecting Drive Cables

When you install a drive, you connect two cables—a DC power cable and a data interface cable—to the back of the drive.

Data Interface Connectors

SATA Connector

1 data interface cable connector 2 data interface connector

Power Cable Connectors

1 power cable 2 power input connector

54 Drives

Page 55

Connecting and Disconnecting Drive Cables

When removing a cable with a pull-tab, grasp the colored pull-tab and pull until the connector detaches.

When connecting and disconnecting a cable without a pull tab, hold the cable by the black connector at each end.

Hard Drive

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product

Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

removing the computer cover.

NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as

a foam pad, that will sufficiently cushion it.

Removing a Hard Drive

If you are replacing a hard drive that contains data you want to keep, back up your files before you begin this procedure.

Check the documentation for the drive to verify that it is configured for your computer.

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Disconnect the power and data cables from the drive.

Drives 55

Page 56

1 data cable 2 hard drive system board

connector

Press in on the blue release tabs on each side of the drive and slide the drive up and out of the

3 power cable

computer.

56 Drives

Page 57

1 hard drive 2 release tabs (2)

Installing a Hard Drive

Unpack the replacement hard drive, and prepare it for installation.

Check the documentation for the drive to verify that it is configured for your computer.

If your replacement hard drive does not have the plastic hard drive bracket attached, remove the bracket from the existing drive by unsnapping it from the drive.

Drives 57

Page 58

1 hard drive 2 hard drive bracket

Snap the bracket onto the new drive.

1 hard drive 2 hard drive bracket 3 pins

58 Drives

Page 59

Gently spread the sides of the drive bracket and slide the hard drive into the bracket, aligning the drive with the bracket pins, until the drive clicks into place.

Carefully slide the hard drive into the drive bay until it clicks into place.

Connect the power and data cables to the drive.

Ensure that the data cable is securely connected to the connector on the system board.

NOTICE: Always connect the data cable to the SATA0 connector on the system board, or to the SATA1 connector if

you already have a hard drive connected to the SATA0 connector and you are installing a second hard drive.

Check all connectors to be certain that they are properly cabled and firmly seated.

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

Insert bootable media and enter system setup (see "System Setup" on page 280), and update the SATA port option under the Drives option list.

Exit system setup, and reboot the computer.

Partition and logically format your drive.

See the documentation for your operating system for instructions.

Test the hard drive by running the Dell Diagnostics (see

"Dell Diagnostics

" on page 353).

Drives 59

Page 60

If the drive you just installed is the primary drive, install your operating system on the hard drive. If the drive you just installed is the primary drive, insert a bootable medium into your boot drive. See the documentation that came with the drive for instructions on installing any software required for drive operation.

Adding a Second Hard Drive

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product

Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

removing the computer cover.

NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as

a foam pad, that will sufficiently cushion it.

NOTICE: If you are replacing a hard drive that contains data you want to keep, back up your files before you begin

this procedure.

Check the documentation for the drive to verify that it is configured for your computer.

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Remove the plastic hard drive bracket from the inside of the hard drive bay by squeezing the release tabs and gently pulling the bracket up and out of the bay.

Gently spread the sides of the drive bracket and slide the hard drive into the bracket, aligning the drive with the bracket pins, until the drive clicks into place.

60 Drives

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1 hard drive 2 hard drive bracket 3 pins

Carefully slide the new hard drive into the bay until it clicks into place.

Connect the power cable to the drive.

Drives 61

Page 62

Locate an unused SATA connector on the system board and attach a data cable to this connector and to the second hard drive.

62 Drives

Page 63

1 data cable 2 hard drive system board

connector

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

Enter system setup (see "System Setup" on page 280), and update the SATA port option under the Drives option list.

Exit system setup, and reboot the computer.

Partition and logically format your drive.

3 power cable

See the documentation for your operating system for instructions.

Test the hard drive by running the Dell Diagnostics (see

If the drive you just installed is the primary drive, install your operating system on the hard drive.

"Dell Diagnostics

" on page 353).

Floppy Drive

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

removing the computer cover.

Drives 63

Page 64

Removing the Floppy Drive

Boot your computer and enter system setup (see "Entering System Setup" on page 280). Use the

Diskette Drive

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Remove the drive panel by sliding the drive release latch downward to open the panel, and then

option to disable the floppy drive.

remove it from the hinges.

Disconnect the power and data cables from the back of the floppy drive.

1 floppy drive 2 drive release latch

Grasp the sliding plate lever and slide it towards the bottom of the computer until the drive panel snaps open; while holding the lever in place, slide the drive out of the computer.

Installing the Floppy Drive

If you are replacing a floppy drive, remove the shoulder screws from the existing drive and attach the screws to the replacement drive.

If you are installing a new floppy drive, remove the drive-panel insert for the 3.5-inch drive bay, remove the shoulder screws from the inside of the drive-panel insert and attach the screws to the new drive.

64 Drives

Page 65

Align the shoulder screws on the floppy drive with the shoulder screw slots, and gently slide it into the bay until it clicks into place.

Attach the power and data cables to the floppy drive and to the system board.

1 floppy drive 2 shoulder screws (4) 3 shoulder screw slots (2)

Drives 65

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1 data cable 2 power cable 3 floppy drive connector (DSKT)

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

Enter system setup (see "Entering System Setup" on page 280), and use the enable your new floppy drive.

Verify that your computer works correctly by running the Dell Diagnostics (see "Dell Diagnostics" on

Diskette Drive

page 353).

Media Card Reader

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

removing the computer cover.

Removing the Media Card Reader

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

66 Drives

option to

Page 67

Remove the drive panel by sliding the drive release latch downward to open the panel, and then remove it from the hinges.

Disconnect the cable from the back of the media card reader.

1 media card reader 2 drive release latch

Grasp the sliding plate lever and slide it towards the bottom of the computer until the drive panel snaps open; while holding the lever in place, slide the media card reader out of the computer.

Installing the Media Card Reader

If you are replacing a media card reader, remove the shoulder screws from the existing drive and attach the screws to the replacement media card reader.

NOTE: If you are replacing an existing floppy drive with a media card reader, ensure you disable the floppy

before installing the media card reader. Boot your computer and enter system setup (see "Entering System Setup" on page 280). Use the Diskette Drive option to disable the floppy drive. Follow instructions in "Removing the Floppy Drive" on page 64.

If you are installing a new media card reader, remove the drive-panel insert for the 3.5-inch drive bay, remove the shoulder screws from the inside of the drive-panel insert and attach the screws to the new drive.

Drives 67

Page 68

Align the shoulder screws on the media card reader with the shoulder screw slots, and gently slide it into the bay until it clicks into place.

Attach the cable to the media card reader and to the system board.

1 media card

reader

2 shoulder screws (4) 3 shoulder screw slots (2)

68 Drives

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1 data/power cable 2 media card reader

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

Verify that your computer works correctly by running the Dell Diagnostics (see "Dell Diagnostics" on page 353).

Optical Drive

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

replacing the cover.

Removing an Optical Drive

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Disconnect the power and data cables from the back of the drive.

Grasp the sliding plate lever and slide it towards the bottom of the computer until the drive panel snaps open; while holding the lever in place, slide the drive out of the computer.

Drives 69

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1 optical drive 2 drive release latch

Installing an Optical Drive

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

If you are replacing an optical drive, remove the shoulder screws from the existing drive and attach the screws to the replacement drive.

If you are installing a new optical drive, remove the drive-panel insert, remove the shoulder screws from the inside of the drive-panel insert, and attach the screws to the new drive.

70 Drives

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Check the documentation that accompanied the drive to verify that the drive is configured for your computer.

Align the shoulder screws on the optical drive with the shoulder screw slots, and slide the drive into the bay until it clicks into place.

1 optical drive 2 shoulder screws (3) 3 shoulder screw slots (2)

Drives 71

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Connect the power and data cables to the drive and to the system board.

NOTICE: Always connect the optical drive SATA cable to a system board SATA connector that is labeled with

a number higher than those connected to any hard drives installed in the computer.

Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

Update your configuration information in system setup by setting the appropriate (SATA-1, SATA-2, or SATA-3) under

Verify that your computer works correctly by running the Dell Diagnostics (see "Dell Diagnostics" on page 353).

72 Drives

1 power cable 2 data cable 3 SATA optical drive connector

Drive

Drives

. See "System Setup" on page 280.

option

Page 73

Processor

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your

body before you touch any of your computer’s electronic components. You can do so by touching an unpainted metal surface on the computer chassis.

Removing the Processor

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Move any cables routed over the heat sink assembly.

Loosen the captive screw (shown in the following figure) on each side of the heat sink assembly.

CAUTION: Despite having a plastic shield, the heat sink assembly may be very hot during normal operation. Be

sure that it has had sufficient time to cool before you touch it.

Rotate the heat sink assembly upward, and remove it from the computer. Lay the heat sink down on its top, with the thermal grease facing upward.

1 heat sink assembly 2 captive screw housings (2)

Processor 73

Page 74

NOTICE: Unless a new heat sink is required for the new processor, reuse the original heat sink assembly when

you replace the processor.

Open the processor cover by sliding the release lever from under the center cover latch on the socket. Then, pull the lever back to release the processor.

NOTICE: When replacing the processor, do not touch any of the pins inside the socket or allow any objects to fall

on the pins in the socket.

1 center cover latch 2 processor cover 3 processor

4 socket 5 release lever

Gently remove the processor from the socket.

Leave the release lever extended in the release position so that the socket is ready for the new processor.

Installing the Processor

NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.

NOTICE: When replacing the processor, do not touch any of the pins inside the socket or allow any objects to fall

on the pins in the socket.

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

74 Processor

Page 75

Unpack the new processor, being careful not to touch the underside of the processor.

NOTE: You must position the processor correctly in the socket to avoid permanent damage to the processor

and the computer when you turn on the computer.

If the release lever on the socket is not fully extended, move it to that position.

Orient the front and rear alignment-notches on the processor with the front and rear alignmentnotches on the socket.

Align the pin-1 corners of the processor and socket.

1 processor cover 2 tab 3 processor

4 processor socket 5 center cover latch 6 release lever

7 front alignment-notch 8 socket and processor pin-1 indicator 9 rear alignment-notch

NOTICE: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive

force when you install the processor.

Set the processor lightly in the socket and ensure that the processor is positioned correctly.

When the processor is fully seated in the socket, close the processor cover.

Ensure that the tab on the processor cover is positioned underneath the center cover latch on the socket.

Processor 75

Page 76

Pivot the socket release lever back toward the socket, and snap it into place to secure the processor.

Clean the thermal grease from the bottom of the heat sink.

NOTICE: Ensure that you apply new thermal grease. New thermal grease is critical for ensuring adequate thermal

bonding, which is a requirement for optimal processor operation.

Apply the new thermal grease to the top of the processor.

Install the heat sink assembly:

Place the heat sink assembly back onto the heat-sink assembly bracket.

Rotate the heat sink assembly down towards the computer base and tighten the two captive screws.

NOTICE: Ensure that the heat sink assembly is correctly seated and secure.

1 heat sink assembly 2 heat-sink assembly bracket 3 captive screw housing (2)

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

76 Processor

Page 77

I/O Panel

Removing the I/O Panel

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

removing the cover.

NOTE: Note the routing of all cables as you remove them so that you can re-route them correctly when installing

the new I/O panel.

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

NOTICE: When sliding the I/O panel out of the computer, be extremely careful. Carelessness may result in damage

to the cable connectors and the cable routing clips.

Remove the screw that secures the I/O panel. Press the release button to slide the card away from the front of the computer.

Disconnect all of the cables from the I/O panel, and remove the panel from the computer.

I/O Panel 77

Page 78

1 I/O panel release button 2 securing screw

3 I/O panel 4 I/O cable connector

Replacing the I/O Panel

To replace the I/O panel, follow the removal procedure in the reverse order.

NOTE: Use the guides on the I/O panel bracket to help position the I/O panel in place, and use the notch on

the I/O panel bracket to help seat the panel.

78 I/O Panel

Page 79

Power Supply

Replacing the Power Supply

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your

body before you touch any of your computer’s electronic components. You can do so by touching an unpainted metal surface on the computer chassis.

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 27).

Disconnect the DC power cables from the system board and the drives.

Note the routing of the DC power cables underneath the tabs in the computer chassis as you remove them from the system board and drives. You must route these cables properly when you replace them to prevent them from being pinched or crimped.

Remove the four screws that attach the power supply to the back of the computer chassis.

Press the release button located on the floor of the computer chassis.

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1 2 3

Slide the power supply toward the front of the computer by approximately 1 inch.

Lift the power supply up and out of the computer.

Slide the replacement power supply into place.

Replace the screws that secure the power supply to the back of the computer chassis.

Reconnect the DC power cables to the power supply.

Connect the AC power cable to the AC power connector.

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

80 Power Supply

1 release button 2 power supply

3 screws (4) 4 AC power connector

Page 81

DC Power Connectors

13 14 15 16 17 18 19 20 21 22 23 24

1 2 3 4 5 6 7 8 9 10 11 12

DC Power Connector P1

Pin Number Signal name 18-AWG Wire

1 +3.3 VDC Orange

2 +3.3 VDC Orange

3GND Black

Power Supply 81

Page 82

Pin Number Signal name 18-AWG Wire

4 +5 VDC Red

5GND Black

6 +5 VDC Red

7GND Black

8 PS_PWRGOOD Gray

9 P5AUX Purple

10 V_12P0_DIG White

11 V_12P0_DIG White

12 +3.3 VDC Orange

13 +3.3VDC/SE* Orange

14 -12 VDC Blue

15 GND Black

16 PWR_PS_ON Green

17 GND Black

18 GND Black

19 GND Black

20 NC NC

21 +5 VDC Red

22 +5 VDC Red

82 Power Supply

Page 83

Pin Number Signal name 18-AWG Wire

3 1

4 2

23 +5 VDC Red

24 GND Black

*Optional wire. Use 22-AWG wire instead of 18-AWG wire.

DC Power Connector P2

Pin Number Signal Name 18-AWG Wire

1GNDBlack

2GNDBlack

3 +12 VADC Yellow

4 +12 VADC Yellow

DC Power Connectors P3, P5, P8, and P9

Pin Number Signal name 18-AWG Wire

1 +3.3 VDC Orange

2GNDBlack

3+5 VDCRed

4GNDBlack

5 +12 VBDC White

Power Supply 83

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DC Power Connector P7

4 3 2 1

DC Power Connector P10

Pin Number Signal Name 22-AWG Wire

1+5 VDCRed

2 GND Black

3 GND Black

4 +12 VDC Yellow

Pin Number Signal name 18-AWG Wire

1 +12 VBDC White

2GNDBlack

3GNDBlack

84 Power Supply

4+5 VDCRed

Page 85

Speakers

Installing a Speaker

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your

body before you touch any of your computer’s electronic components. You can do so by touching an unpainted metal surface on the computer chassis.

Follow the procedures in "Before You Begin" on page 21.

Remove the cover of your computer (see "Removing the Computer Cover" on page 27).

Insert the speaker into the chassis of the computer.

Connect the cables to the system board.

Replace the computer cover.

Turn on power to the computer.

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Page 86

Removing a Speaker

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your

body before you touch any of your computer’s electronic components. You can do so by touching an unpainted metal surface on the computer chassis.

Follow the procedures in "Before You Begin" on page 21.

Remove the cover of your computer (see "Removing the Computer Cover" on page 27).

Disconnect the cables from the system board.

Remove the speaker from the chassis of the computer.

Replace the computer cover.

Turn on power to the computer.

86 Speakers

Page 87

Desktop Computer

514611 10

About Your Desktop Computer

Front View

1 USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such as

joysticks or cameras, or for bootable USB devices (see "System Setup" on page 280 for more information about booting to a USB device).

It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards.

2 LAN indicator light This light indicates that a LAN (local area network) connection is established.

3 power button Press this button to turn on the computer.

NOTICE: To avoid losing data, do not turn off the computer by pressing the

power button. Instead, perform an operating system shutdown. See "Turning Off Your Computer" on page 21 for more information.

NOTICE: If your operating system has ACPI enabled, when you press the

power button the computer will perform an operating system shutdown.

4 Dell badge This badge can be rotated to match the orientation of your computer. To rotate,

place fingers around the outside of the badge, press firmly, and turn the badge. You can also rotate the badge using the slot provided near the bottom of the badge.

87 Desktop Computer

Page 88

5 power light The power light illuminates and blinks or remains solid to indicate different

2 3 4 6

operating states:

• No light — The computer is turned off.

• Steady green — The computer is in a normal operating state.

• Blinking green — The computer is in a power-saving mode.

• Blinking or solid amber — See "Power Problems" on page 339.

"Power Management for Windows XP and Windows Vista

See "Diagnostic Lights" on page 347 for a description of light codes that can help you troubleshoot problems with your computer.

6 diagnostic lights Use the lights to help you troubleshoot a computer problem based on the

diagnostic code. For more information, see "Diagnostic Lights" on page 347.

7 hard drive activity light This light flickers when the hard drive is being accessed.

8 headphone connector Use the headphone connector to attach headphones and most kinds of speakers.

9 microphone connector Use the microphone connector to attach a microphone.

10 3.5-inch drive bay Can contain an optional floppy drive, second hard drive, or optional media card

reader.

11 5.25-inch drive bay Can contain an optical drive. Insert a CD or DVD (if supported) into this drive.

" on page 292.

Back View

1 card slots Access connectors for any installed PCI or PCI Express cards, PS/2 connector,

eSATA connector, etc.

NOTE: The back view of the computer is different if a riser is installed.

2 back panel connectors Plug serial, USB, and other devices into the appropriate connectors (see "Back

Panel Connectors" on page 89).

3 power connector Insert the power cable.

88 Desktop Computer

Page 89

4 voltage selection switch Your computer is equipped with a manual voltage selection switch. To help avoid

98 7

damaging a computer with a manual voltage selection switch, set the switch for the voltage that most closely matches the AC power available in your location.

NOTICE: In Japan, the voltage selection switch must be set to the 115-V

position.

Also, ensure that your monitor and attached devices are electrically rated to operate with the AC power available in your location.

5 padlock ring Insert a padlock to lock the computer cover.

6 cover-release latch Allows you to open the computer cover.

Back Panel Connectors

1 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have a

USB printer, plug it into a USB connector.

NOTE: The integrated parallel connector is automatically disabled if the computer

detects an installed card containing a parallel connector configured to the same address. For more information, see "System Setup Options" on page 281.

2 link integrity light

• Green — A good connection exists between a 10-Mbps network and the computer.

• Orange — A good connection exists between a 100-Mbps network and the computer.

• Yellow — A good connection exists between a 1-Gbps (or 1000-Mbps) network and the computer.

• Off — The computer is not detecting a physical connection to the network.

Desktop Computer 89

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3 network adapter

connector

NOTE: Do not plug a telephone cable into the network connector.

For VPro to work, the network cable must be connected to the onboard NIC.

It is recommended that you use Category 5 wiring and connectors for your network. If you must use Category 3 wiring, force the network speed to 10 Mbps to ensure reliable operation.

4 network activity light Flashes a yellow light when the computer is transmitting or receiving network

data. A high volume of network traffic may make this light appear to be in a steady "on" state.

5 line-out connector Use the green line-out connector to attach headphones and most speakers with

integrated amplifiers.

6 line-in/microphone

connector

7 USB 2.0 connectors (6) Use the back USB connectors for devices that typically remain connected, such as

8 video connector Plug the cable from your VGA-compatible monitor into the blue connector.

printers and keyboards.

NOTE: If you purchased an optional graphics card, this connector will be covered by

a cap. Connect your monitor to the connector on the graphics card. Do not remove the cap.

NOTE: If you are using a graphics card that supports dual monitors, use the y-cable

that came with your computer.

9 serial connector Connect a serial device, such as a handheld device, to the serial port. The default

designations are COM1 for serial connector 1 and COM2 for serial connector 2.

For more information, see "System Setup Options" on page 281.

Removing the Computer Cover

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product

Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

removing the computer cover.

Follow the procedures in "Before You Begin" on page 21.

If you have installed a padlock through the padlock ring on the back panel, remove the padlock.

Locate the cover release latch shown in the illustration. Then, slide the release latch back as you lift the cover.

90 Desktop Computer

Page 91

Grip the sides of the computer cover and pivot the cover up using the hinge tabs as leverage points.

Remove the cover from the hinge tabs and set it aside on a soft nonabrasive surface.

CAUTION: Graphics card heat sinks can become very hot during normal operation. Ensure that a graphics card

heat sink has had sufficient time to cool before you touch it.

1 security cable slot

2 cover release latch

3 padlock ring

Inside Your Computer

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product

Information Guide.

CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing

the computer cover.

Desktop Computer 91

Page 92

NOTICE: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables

from the system board.

1 drive bays (media card

reader or floppy drive, optical drive and hard drive)

2 power supply 6 heat sink assembly

3 optional chassis-intrusion

switch

4 system board

Chassis Intrusion Switch

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the

Product Information Guide.

NOTE: The chassis intrusion switch is standard on the ultra small form factor computer but is optional on mini

tower, desktop, and small form factor computers; it may not be present on your computer.

Removing the Chassis Intrusion Switch

Follow the procedures in "Before You Begin" on page 21.

Remove the computer cover (see "Removing the Computer Cover" on page 90).

92 Desktop Computer

5 card slots

7 front I/O panel

Page 93

Disconnect the chassis intrusion switch cable from the system board by using two fingers to squeeze the release mechanism on one side of the connector as you pull to disconnect the cable connector.

Slide the chassis intrusion switch out of its slot in the metal bracket, and then push it down through the square hole in the bracket to remove the switch and its attached cable from the computer.

NOTE: You may feel a slight resistance as you slide the switch out of the slot.

Replacing the Chassis Intrusion Switch

Gently insert the switch from underneath the metal bracket into the square hole in the bracket, and then slide the chassis intrusion switch into its slot until it snaps securely into place.

Reconnect the cable to the system board.

Replace the computer cover (see "Replacing the Computer Cover" on page 317).

Resetting the Chassis Intrusion Detector

Turn on (or restart) your computer.

When the blue DELL™ logo appears, press <F2> immediately.

If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft

Windows® desktop. Then shut down your computer and try again.

Desktop Computer 93

Page 94

Select the the setting to

Save your BIOS settings and exit system setup.

Chassis Intrusion

On, On-Silent

NOTE: The default setting is On-Silent.

option and then press the left- or right-arrow key to select

, or

Disabled

Reset

Removing the Heat Sink Assembly

Loosen the captive screw on each side of the heat sink assembly.

CAUTION: Despite having a plastic shield, the heat sink assembly may be very hot during normal operation. Be

sure that it has had sufficient time to cool before you touch it.

Rotate the heat sink assembly upward, and remove the assembly from the computer. Lay the heat sink down on its top.

. Change

94 Desktop Computer

1 heat sink assembly

2 captive screw housing (2)

Page 95

System Board Components

81112

91013

Desktop Computer 95

Page 96

1 internal speaker (INT_SPKR) 12 intrusion switch connector (INTRUDER)

2 processor connector (CPU) 13 battery socket (BATTERY)

3 processor power connector (12VPOWER) 14 PCI Express x16 connector (SLOT1)

4 memory module connectors (DIMM_1,

DIMM_2, DIMM_3, DIMM_4)

5 password jumper (PSWD) 16 PCI connector (SLOT3)

6 SATA connectors (SATA0, SATA1, SATA2) 17 riser connector (uses PCI-E port/SLOT1 and

7 front-panel connector (FRONTPANEL) 18 serial connector (SERIAL2)

8 power connector (POWER) 19 system board speaker (BEEP)

9 external SATA connector (eSATA) 20 aux power LED (aux_LED)

10 internal USB (INT_USB) 21 floppy connector (DSKT)

11 RTC reset jumper (RTCRST) 22 fan connector (FAN_CPU)

15 PCI connector (SLOT2)

PCI port/SLOT2)

96 Desktop Computer

Page 97

Desktop Computer Specifications

Microprocessor

Microprocessor type The following are supported:

•Intel® Core™2

• Intel vPro™

• Intel Celeron

Internal cache L1: up to 128 KB;

L2: up to 8 MB (depending on your processor)

Memory

Type 667-MHz or 800-MHz DDR2 SDRAM

Memory connectors 4

Memory modules supported 512 MB, 1 GB, or 2 GB non-ECC

Minimum memory dual-channel: 1 GB;

single-channel: 512 MB

NOTE: 512 MB is the minimum shipping configuration.

Maximum memory 64-bit operating system: 8 GB

32-bit operating system: 4 GB

BIOS address F0000h

Computer Information

Chipset Intel Q35 Express Chipset w/ICH9DO

Data bus width 64 bits

Address bus width 32 bits

DMA channels eight

Interrupt levels 24

BIOS chip (NVRAM) 32 Mb

NIC integrated network interface with ASF 1.03 and 2.0 support as

defined by DMTF

Capable of 10/100/1000 communication

iAMT 3.0

Desktop Computer Specifications 97

Page 98

Video

Ty p e

Audio

Type ADI 1984 High Definition Audio

Stereo conversion 24-bit analog-to-digital; 24-bit digital-to-analog

Controllers

Drives three SATA controllers and one eSATA controller supporting one

Expansion Bus

Bus type PCI 2.3

Bus speed PCI: 133 MB/s

Cards standard configuration supports low-profile cards only;

PCI: without riser-card cage

connectors

card size

connector size

connector data width (maximum)

PCI Express: without riser-card cage

connectors

card size

power

• Intel Graphics Media Accelerator 3100 (integrated on system board)

• PCI Express x16 slot can support either a PCI Express graphics card or a DVI graphics card (for dual-monitor support)

device each

PCI Express 1.0A SATA 1.0A and 2.0 USB 2.0

PCI Express x16: 8 GB/s bidirectional speed SATA: 1.5 Gbps and 3.0 Gbps USB: 480 Mbps

with optional riser-card cage, computer supports half-length, fullheight cards. Full-height cards are supported in the 6.875-inch riser card cage.

two

low profile

120 pins

32 bits

one x16

low profile

25 W (maximum)

98 Desktop Computer Specifications

Page 99

Expansion Bus

connector size

connector data width (maximum)

PCI and PCI Express: with optional, full-height PCI Express riser-card cage, supporting both low-profile and full-height cards

PCI

connectors

card size

connector size

connector data width (maximum)

PCI Express

connectors

card size

power

connector size

connector data width (maximum)

PCI only: with optional, full-height PCI riser-card cage, supporting both low-profile and full-height cards

connectors

card size

connector size

connector data width (maximum)

eSATA

164 pins (x16)

16 PCI Express lanes (x16)

two

one low-profile card and one full-height card

120 pins

32 bits

one x16

full-height

25 W maximum

164 pins (x16)

16 PCI Express lanes (x16)

three PCI

one low-profile card and two full-height cards

120 pins

32 bits

Desktop Computer Specifications 99

Page 100

Drives

Externally accessible one One eSATA drive (optional)

Internally accessible

Connectors

External connectors:

Serial

Parallel

Video

Network adapter

Optional PS/2 with secondary serial port adapter

USB

Audio

System board connectors:

SATA

eSATA

Internal USB 10-pin header for optional media card reader (in 3.5-inch drive bay)

Floppy drive

Serial

Fan

PCI Express

PCI 2.3

Front panel

• two SATA (Serial ATA) hard drives

• one3.5-inch floppy drive or media card reader

• one SATA optical drive

9-pin connector; 16550C-compatible

25-pin connector (bidirectional)

15-pin VGA connector

RJ45 connector

two 6-pin mini-DINs

two front-panel and six back panel USB 2.0–compliant connectors

two connectors for line-in/ microphone and line-out; two frontpanel connectors for headphones and microphone

three 7-pin connectors

one 7-pin connector

34-pin connector

12-pin connector for optional secondary PS/2 serial port card

5-pin connector

one 120-pin (x16) connector

two 120-pin connectors

40-pin connector

100 Desktop Computer Specifications

Dell 755 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Finding Information

Before You Begin

Recommended Tools

Turning Off Your Computer

Before Working Inside Your Computer

Mini Tower Computer

About Your Mini Tower Computer

Front View

Back View

Back Panel Connectors

Removing the Computer Cover

Inside Your Computer

Chassis Intrusion Switch

Removing the Chassis Intrusion Switch

Replacing the Chassis Intrusion Switch

Resetting the Chassis Intrusion Detector

System Board Components

Mini Tower Computer Specifications

Cards

Installing a PCI or PCI Express Card

Removing a PCI or PCI Express Card

PS/2 Serial Port Adapter

Installing eSATA

Drives

General Drive Installation Guidelines

Hard Drive

Floppy Drive

Media Card Reader

Optical Drive

Processor

Removing the Processor

Installing the Processor

I/O Panel

Removing the I/O Panel

Replacing the I/O Panel

Power Supply

Replacing the Power Supply

DC Power Connectors

Speakers

Installing a Speaker

Removing a Speaker

Desktop Computer

About Your Desktop Computer

Front View

Back View

Back Panel Connectors

Removing the Computer Cover

Inside Your Computer

Chassis Intrusion Switch

Removing the Chassis Intrusion Switch

Replacing the Chassis Intrusion Switch

Resetting the Chassis Intrusion Detector

Removing the Heat Sink Assembly

System Board Components

Desktop Computer Specifications