Compaq 319954-001 Serial, Parallel and USB Problems

6–18 Reference Guide

Troubleshooting

Serial, Parallel and USB Problems

If a Serial Mouse Does Not Work

■Make sure you followed the manufacturer’s installation

instructions completely and have installed the mouse

properly. If not, repeat the procedure.

■Make sure the port connection is secure.

■Restart the notebook by selecting Start > Turn Off

Computer > Restart.

■Check mouse settings in Control Panel by selecting Start >

Control Panel > Printers and Other Hardware > Mouse.

■Use a mouse that connects to the USB or PS/2 port. If you

have a PS/2 keyboard connected, use a PS/2 Y adapter.

■Check the port settings in Control Panel. Open the hardware

Device Manager, then select Ports (COM & LPT).

If a Serial Modem Does Not Work Properly

■Make sure the port connection is secure.

■Use the Modem troubleshooter in Windows Help. Select

Start > Help and Support.

■In Control Panel, open Phone and Modem Options, and check

the modem settings.

■Disable the internal modem:

1. Open the hardware Device Manager. Select Start >

Control Panel > Performance and Maintenance > System.

2. Select Modem to list the current modem devices.

3. Select the internal modem, then select the option to

disable the modem.

■Check the port settings in Control Panel. Open the hardware

Device Manager, then select Ports (COM & LPT).

319954-001.book Page 18 Thursday, February 3, 2005 3:03 PM

Contents

Main b Reference Guide Compaq Notebook Series Page Software Product License Agreement Page Page Page Contents Software Product License Agreement 1 Getting Started with Your Notebook 2 Basic Operation 3 Battery Packs and Power Management 4 Modem and Network Connections 5 Add-On Devices 6 Troubleshooting 7 Reference Information Index Page Front Panel and Right Panel Components Page Left Panel and Back Panel Components Page Bottom Panel Components 1 Hard drive 4 2 Battery latch 5 3 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 Page Default Power Settings Power mode To enter this mode Function 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-Touch Buttons 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 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 Page How the Notebook Manages Power Automatically When this occurs The result is To resume To Change Timeout Settings and Create Power Schemes Using Battery Power To Check Battery Status To Respond to a Low-Battery Warning 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-On Devices Connecting External Devices To Insert or Remove a PC Card Using Dual Display Mode To Connect a 1394 Device To Connect an Infrared Device 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 Page 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 If No Sound Is Audible If Sound Does Not Record If You Hear Loud, High-Pitched Feedback from the Speakers CD-ROM and DVD Problems If You Cannot Boot from a CD or DVD If a DVD Plays Erratically If You Get a Region Code Error When Playing a DVD Movie If the Notebook Cannot Read a CD or DVD Display Problems If the Notebook Is On, But the Screen Is Blank If the Screen Is Difficult to Read If an External Display Does Not Work Hard Drive Problems If the Notebook Hard Drive Does Not Spin If the Hard Drive Makes a Buzzing or Whining Noise If Files Are Corrupted Heat 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 If the Built-In Network Adapter Does Not Connect to the LAN If You Cannot Browse the Network Neighborhood or My Network Places If You Cannot Log In to Netware Servers If a Network Connection Responds Slowly Memory Problems If a Message Reports That You Are Out of Memory If Memory Does Not Increase After Adding RAM If the Notebook Beeps But Does Not Start After Adding RAM 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 If the Modem Causes an ERROR Message PC Card (PCMCIA) Problems If the Notebook Does Not Recognize a PC Card If a Network PC Card Stops Communicating Properly If a PC Card Modem Is Not Working Performance Problems If the Notebook Pauses or Runs Sluggishly If the Notebook Stops Responding Power and Battery Pack Problems If the Notebook Turns Off Immediately After It Turns On 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 If a Serial or Parallel Printer Does Not Print Serial, Parallel and USB Problems If a Serial Mouse Does Not Work If a Serial Modem Does Not Work Properly If the Serial or Parallel Port Is Not Working If the USB Port Is Not Working Startup Problems If the Notebook Does Not Respond When You Turn It On If the Notebook Will Not Boot from Battery Power Page Wireless Problems If You Have Problems with Wireless 802.11 Communication Page Configuring Your Notebook To Run the BIOS Setup Utility Main Menu System Devices Menu Security Menu Boot Menu Security Menu Exit Menu 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 Page Page Page Page Page Page Page Conexant AT Commands (Advanced Users Only) ECC Commands ECC Commands Command (Conexant) +ER: +ER= +ES= FAX Class 1 Voice Commands Voice Commands AT* Commands S-Registers (Conexant) Selected Result Codes (Conexant) Safety Information Power Cords Battery Safety Laser Safety LED Safety Mercury Safety Exposure to Radio Frequency Radiation Wireless Notice Regulatory Information U.S.A. Connections to Peripheral Devices Page Page Canada European Union Page Page Page Page New Zealand Conexant AMC20493-KT5 Data Fax Modem PTC 211/02/071 (Continued) Page Page Page Index