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Compaq Presario 2200 Reference Guide - Page 46

To Change Your Modem Settings, Control Panel., Communications software., AT commands.

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Modem and Network Connections To Change Your Modem Settings The modem is already set up to be compatible with telephone systems and modems in most areas. However, in some situations, you may have to change modem settings to match local conditions. If you have questions about local requirements, contact your telephone company. ■ Control Panel. Open Phone and Modem Options in Control Panel to change many modem settings. On the Modems tab, select Properties to set connection speeds, or on the Dialing Rules tab, select Edit to set dialing options. ■ Communications software. Many communications applications provide options for controlling modem settings. See the Help for your software. ■ AT commands. You can control many aspects of modem operation using modem AT commands. AT commands are special strings of characters sent to the modem to set up specific conditions. Those command strings normally start with "AT." For a list of AT commands for the built-in modem, see the Documentation CD. From the Control Panel, select Phone and Modem Options. On the Modems tab, select Properties. You can type AT commands on the Advanced tab in the space for extra settings. 4-4 Reference Guide

Section	Page
Contents	3
Getting Started with Your Notebook	7
Identifying Parts of the Notebook	7
Front Panel and Right Panel Components	8
Left Panel and Back Panel Components	9
Bottom Panel Components	10
Status Lights	11
Setting Up Your Notebook	13
Step 1: Insert the Battery Pack	13
Step 2: Connect AC Power	14
Step 3: Connect a Phone Line	15
Step 4: Turn On the Notebook	16
Step 5: Set Up Windows	17
Basic Operation	18
Operating Your Notebook	18
Default Power Settings	19
To Reset the Notebook	20
To Change the Boot Device	20
To Use the TouchPad	21
To Use the Tap to Click Function of the TouchPad	22
To Use the Function Hot Keys	23
To Use the One-Touch Buttons	24
To Use the Windows and Applications Keys	25
To Type Alternate Graphics Using the ALT GR Key	26
Using CDs or DVDs	27
To Insert or Remove a CD or DVD	27
To Play DVD Movies	28
To Create or Copy CDs	29
To Write to DVD Media (Select Models Only)	29
Securing Your Notebook	30
To Set Up Password Protection	30
To Lock Your Notebook	30
To Attach an Optional Security Cable	31
To Protect Against Viruses	32
To Lock the Hard Drive	32
Taking Care of Your Notebook	33
To Protect Your Hard Drive	33
To Maintain Your Notebook	33
To Safeguard Your Data	34
To Extend the Life of the Display	34
To Clean Your Notebook	34
Battery Packs and Power Management	35
Managing Power Consumption	35
How the Notebook Manages Power Automatically	36
To Change Timeout Settings and Create Power Schemes	37
Using Battery Power	38
To Check Battery Status	38
To Respond to a Low-Battery Warning	39
To Recharge the Battery Pack	39
To Get the Most from Your Battery Packs	40
Disposing of a Used Battery Pack	42
Modem and Network Connections	43
Using the Modem	43
To Connect the Modem	44
Special Restrictions in Certain Countries	45
To Change Your Modem Settings	46
Connecting to a Local Area Network (LAN)	47
Using a Wireless LAN Adapter (Select Models Only)	48
Making Wireless Network Connections (Select Models Only)	49
To Turn Wireless Communication On and Off	50
Turning On Communication and Making a Connection	50
Turning Off Communication and Ending a Connection	51
Add-On Devices	52
Connecting External Devices	52
To Insert or Remove a PC Card	52
Inserting a PC Card	52
Removing a PC Card	53
To Connect an Audio Device	54
To Connect a TV to Your Notebook (Select Models Only)	55
Adjusting Monitor Resolution and Other Settings	55
Using Dual Display Mode	56
To Connect a 1394 Device (Select Models Only)	57
Installing Additional RAM (Memory)	58
To Install a RAM Expansion Module	58
To Remove a RAM Expansion Module	60
Replacing the Hard Drive	62
To Replace the Hard Drive	62
To Replace the Hard Drive Holder	63
To Prepare a New Hard Drive	64
Troubleshooting	65
Troubleshooting Your Notebook	65
Audio Problems	66
If No Sound Is Audible	66
If Sound Does Not Record	66
If You Hear Loud, High-Pitched Feedback from the Speakers	66
CD-ROM and DVD Problems	67
If You Cannot Boot from a CD or DVD	67
If a DVD Plays Erratically	67
If You Get a Region Code Error When Playing a DVD Movie	67
If the Notebook Cannot Read a CD or DVD	68
If a DVD Movie Does Not Fill the Screen	68
Display Problems	68
If the Notebook Is On, But the Screen Is Blank	68
If the Screen Is Difficult to Read	68
If an External Display Does Not Work	69
Hard Drive Problems	69
If the Notebook Hard Drive Does Not Spin	69
If the Hard Drive Makes a Buzzing or Whining Noise	69
If Files Are Corrupted	70
Heat Problems	70
If the Notebook Gets Abnormally Hot	70
Keyboard and Pointing Device Problems	71
If the Pointer Is Difficult to Control	71
If the TouchPad Does Not Work	71
If the TouchPad Moves the Pointer or Cursor While You Type	71
Local Area Network (LAN) Problems	72
If the Built-In Network Adapter Does Not Connect to the LAN	72
If You Cannot Browse the Network Neighborhood or My Network Places	72
If You Cannot Log In to Netware Servers	72
If a Network Connection Responds Slowly	72
Memory Problems	73
If a Message Reports That You Are Out of Memory	73
If Memory Does Not Increase After Adding RAM	73
If the Notebook Beeps But Does Not Start After Adding RAM	73
Modem Problems	74
If the Modem Seems Slow	74
If the Modem Does Not Dial or No Dial Tone Is Detected	74
If the Modem Dials Incorrectly	75
If the Modem Dials, But Does Not Connect	75
If the Modem Is Not Detected	75
If the Modem Dials, But You Cannot Hear It	76
If the Modem Connects, But Transferred Data Is Bad	76
If the Modem Causes an ERROR Message	76
If the Modem Does Not Fax	76
If Excessive Line Current Is Detected	76
If the Modem Clicks Repeatedly, But Does Not Connect	77
PC Card (PCMCIA) Problems	77
If the Notebook Does Not Recognize a PC Card	77
If a Network PC Card Stops Communicating Properly	77
If a PC Card Modem Is Not Working	78
Performance Problems	78
If the Notebook Pauses or Runs Sluggishly	78
If the Notebook Stops Responding	79
Power and Battery Pack Problems	79
If the Notebook Turns Off Immediately After It Turns On	79
If the Notebook Keeps Beeping	79
If the Battery Pack Does Not Charge	79
If the Notebook Has a Short Operating Time	80
If the Time Remaining for the Battery Pack Is Not Correct	80
If the Notebook Does Not Enter Standby Mode as Expected	81
If the Notebook Does Not Enter Hibernation as Expected	81
Printing Problems	81
If a Serial or Parallel Printer Does Not Print	81
If the Left Edge of Printed Output Is Missing	81
Serial, Parallel and USB Problems	82
If a Serial Mouse Does Not Work	82
If a Serial Modem Does Not Work Properly	82
If the Serial or Parallel Port Is Not Working	83
If the USB Port Is Not Working	83
Startup Problems	83
If the Notebook Does Not Respond When You Turn It On	83
If the Notebook Will Not Boot from Battery Power	83
If the Notebook Will Not Boot from the Diskette Drive	84
If the Notebook Stops Responding After Booting	84
If the Notebook Takes a Long Time to Resume After Entering Standby	84
Wireless Problems	85
If You Have Problems with Wireless 802.11 Communication	85
If You Have Trouble Connecting to Another Notebook in the Network Neighborhood or My Network Places	86
If You Cannot Connect to a Particular Notebook on the Network	86
If You Can Connect, But the Network Is Slow	86
Configuring Your Notebook	87
To Run the BIOS Setup Utility	87
Updating Software and Drivers from the Web	92
Using System Recovery Features	92
Safeguarding Your Data	93
Operating System (OS) CD Repair	94
OS CD Reinstall	95
Reinstalling Drivers	96
Restoring Software Applications	96