Contents

1. Product Information

1-1

Features and Operation

1-2

Turning the OmniBook On and Off

1-4

Checking the Status of the OmniBook

1-4

Using Fn Hot Keys

1-6

Resetting the OmniBook

1-6

System Resources

1-7

Specifications

1-9

Internal Design

1-12

2. Removal and Replacement

2-1

Removing the Battery or Plug-In Module (User-Replaceable)

2-3

Removing a RAM Board (User-Replaceable)

2-4

Removing the Hard Disk Drive (User-Replaceable)

2-5

Replacing Small Parts (User-Replaceable)

2-7

Removing the Keyboard (HP Authorized Service Providers Only)

2-8

Removing the Display Assembly (HP Authorized Service Providers Only)

2-10

Removing the LCD Module (HP Authorized Service Providers Only)

2-11

Removing the Top Case (HP Authorized Service Providers Only)

2-14

Removing the Motherboard or Bottom Case (HP Authorized Service Providers Only)

2-16

Removing the BIOS IC (HP Authorized Service Providers Only)

2-19

Removing Other Components (HP Authorized Service Providers Only)

2-21

3. Troubleshooting and Diagnostics

3-1

Troubleshooting

3-2

Troubleshooting the Problem

3-2

Verifying the Repair

3-3

Suggestions for Troubleshooting

3-4

Diagnostic Tools

3-12

OmniBook Diagnostic Program

3-12

Power-On Self-Test

3-17

Sycard PCCtest 450 CardBus Card (Optional)

3-20

Desktop Management Interface (DMI)

3-21

BIOS Setup Utility

3-23

4. Replaceable Parts

4-1

5. Reference Information

5-1

Password Removal Policy

5-1

Hewlett-Packard Display Quality Statement

5-2

HP OmniBook 4100

iii

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HP 4100 manual Contents