HP 2100 (AMD), 2100AP, 2100CA, 2100US, 2101AP, 2101US, 2102AP, 2102US, 2103AP, 2104AP, 2105AP, 2105US, 2106AP, 2106US, 2107AP, 2108AP, 2109AP, 2110AP, 2110US, 2112AP, 2112EA, 2113AP, 2114AP, 2115AP, 2116AP, 2117AP, 2117EA, 2119EA, 2120AP, 2120US, 2123AP, 2124AC, 2124EA, 2125AC, 2125AP, 2126AC, 2126EA, 2127AC, 2129AC, 2130AC, 2131AC, 2131EA, 2132AC, 2132RS, 2133AC, 2135AC, 2135AP, 2135US, 2136RS, 2138AC, 2138EA, 2139AC, 2140AC, 2140AP, 2140CA, 2140US, 2141AC, 2141EA, 2142AC, 2142EA, 2143AC, 2143AP, 2143EA, 2144EA, 2145AP, 2145CA, 2145US, 2150AP, 2151EA, 2155US, 2156EA, 2158, 2185AF, 2505EA, 2508EA, 2510AP, 2514AH, 2515AH, 2515AP, 2516AH, 2517AH, 2518AH, 2524AP, 2528AP, 2529EA, 2532AP, 2532EA, 2533EA, 2535AP, 2535EA, 2535QV, 2537EA, 2538AP, 2538CL, 2541EA, 2542EA, 2543AP, 2543EA, 2544EA, 2545AP, 2545US, 2546EA, 2548AP, 2549EA, 2550AP, 2550CA, 2555AP, 2555US, 2558AP, 2560AP, 2562AP, 2565AP, 2566AP, 2568AP, 2569AP, 2500 CD-ROMand DVD Problems, If a DVD Plays Erratically, If You Cannot Boot from a CD or DVD, If the Notebook Cannot Read a CD or DVD

Troubleshooting

CD-ROM and DVD Problems

If You Cannot Boot from a CD or DVD

■Make sure the CD or DVD is bootable.

■Make sure the CD-ROM/DVD drive is selected as the boot device. See the “Basic Operation” chapter in this guide to change the boot sequence.

■Restart the notebook by selecting Start > Turn Off Computer > Restart.

If a DVD Plays Erratically

■Dirt or smudges can cause a disc to skip. Clean the disc with a soft cloth. If the disc is badly scratched, it will probably have to be replaced.

■If you are playing the DVD on battery power, try changing the power scheme.

If You Get a Region Code Error When Playing a DVD Movie

DVDs can have regional codes embedded in the disc data. These codes prevent DVD movies from being played outside the region of the world in which they are sold. If you get a Region Code error, you are trying to play a DVD intended for a different region.

If the Notebook Cannot Read a CD or DVD

■For a single-sided CD or DVD, make sure the disc is placed in the drive with the label facing up.

■Clean the disc.

■Wait 5 to 10 seconds after closing the tray to give the notebook time to recognize the disc.

Reference Guide

6–3

Contents

Reference Guide Page Software Product License Agreement Page Page Page Contents 3 Battery Packs and Power Management 4 Modem and Network Connections 5 Add-OnDevices 6 Troubleshooting 7 Reference Information Index Getting Started with Your Notebook Identifying Parts of the Notebook Front Panel and Right Panel Components Page Left Panel and Back Panel Components Page Bottom Panel Components Page Status Lights Page Setting Up Your Notebook Step 1: Insert the Battery Pack Step 2: Connect AC Power Step 3: Connect a Phone Line Step 4: Turn On the Notebook Step 5: Set Up Windows Basic Operation Operating Your Notebook Default Power Settings To Reset the Notebook To Change the Boot Device To Use the TouchPad To Use the Tap to Click Function of the TouchPad To Use the Function Hot Keys To Use the One-TouchButtons To Use the Windows and Applications Keys To Type Alternate Graphics Using the ALT GR Key Using CDs or DVDs To Insert or Remove a CD or DVD To Play DVD Movies To Create or Copy CDs To Write to DVD Media Securing Your Notebook To Set Up Password Protection To Lock Your Notebook To Attach a Security Cable To Protect Against Viruses To Lock the Hard Drive Taking Care of Your Notebook To Protect Your Hard Drive To Maintain Your Notebook To Safeguard Your Data To Extend the Life of the Display To Clean Your Notebook Battery Packs and Power Management Managing Power Consumption How the Notebook Manages Power Automatically To Change Timeout Settings and Create Power Schemes Using Battery Power To Check Battery Status To Respond to a Low-BatteryWarning To Recharge the Battery Pack To Get the Most from Your Battery Packs Page Modem and Network Connections Using the Modem To Connect the Modem Special Restrictions in Certain Countries To Change Your Modem Settings Connecting to a Local Area Network (LAN) Using a Wireless LAN Adapter Page Making Wireless Network Connections (Select Models Only) To Prepare for Connections Connecting to a Wireless Network Checking the Wireless Connection Status Creating a New Computer-to-Computer(Ad Hoc) Network To Turn Wireless Communication On and Off Turning On Communication and Making a Connection Turning Off Communication and Ending a Connection Add-OnDevices Connecting External Devices To Insert or Remove a PC Card Removing a PC Card To Connect an Audio Device To Use an External Monitor Using Dual Display Mode To Connect a 1394 Device (Select Models Only) To Connect an Infrared Device (Select Models Only) Using the Infrared Port Avoiding Standby While Using Infrared Printing to an Infrared Printer Transferring Files Through an Infrared Connection To Use a Port Replicator Page To Undock from the Port Replicator Installing Additional RAM (Memory) To Install a RAM Expansion Module Page To Remove a RAM Expansion Module Replacing the Hard Drive To Replace the Hard Drive Page To Replace the Hard Drive Holder To Prepare a New Hard Drive Troubleshooting Troubleshooting Your Notebook Audio Problems CD-ROMand DVD Problems Display Problems Hard Drive Problems Heat Problems Infrared Problems Keyboard and Pointing Device Problems If the Pointer Is Difficult to Control If the TouchPad Does Not Work If the TouchPad Moves the Pointer or Cursor While You Type If a PS/2 Scroll Mouse Does Not Work Local Area Network (LAN) Problems Memory Problems Modem Problems If the Modem Does Not Dial or No Dial Tone Is Detected If the Modem Dials Incorrectly If the Modem Dials, But Does Not Connect If the Modem Is Not Detected If the Modem Dials, But You Cannot Hear It If the Modem Connects, But Transferred Data Is Bad PC Card (PCMCIA) Problems Performance Problems Power and Battery Pack Problems If the Notebook Keeps Beeping If the Battery Pack Does Not Charge If the Notebook Has a Short Operating Time If the Time Remaining for the Battery Pack Is Not Correct If the Notebook Does Not Enter Standby Mode as Expected If the Notebook Does Not Enter Hibernation as Expected Printing Problems Serial, Parallel and USB Problems Startup Problems If the Notebook Will Not Boot from the Diskette Drive If the Notebook Stops Responding After Booting If the Notebook Takes a Long Time to Resume After Entering Standby Wireless Problems If You Cannot Connect to a Particular Notebook on the Network If You Can Connect, But the Network Is Slow Configuring Your Notebook To Run the BIOS Setup Utility Page Page Page Page To Change Video Memory Settings Using BIOS Setup Utility Updating Software and Drivers from the Web Using System Recovery Features Safeguarding Your Data Operating System (OS) CD Repair OS CD Reinstall Reinstalling Drivers Restoring Software Applications Reference Information Modem Reference Information Modem Reference (Conexant) Page Page Page Page Page Page Page Page Page Page Page Page Page Page Safety Information Power Cords Battery Safety Laser Safety LED Safety Mercury Safety Exposure to Radio Frequency Radiation Wireless Notice Regulatory Information Page Page Canada European Union Page Page Japan Korea New Zealand Page Russia Brazil International Page Page Index