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

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