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Compaq Presario 2500 Reference Guide - Page 86

Serial, parallel, and USB problems, If a serial mouse doesn't work

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Troubleshooting and Maintenance Troubleshooting Your Notebook Serial, parallel, and USB problems If a serial mouse doesn't 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. Select Start > Turn Off Computer > Restart. • Check mouse settings in Control Panel. Select 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, and then double-click Ports (COM & LPT). If a serial modem doesn't 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. Double-click Modem to list the current modem devices. 3. Double-click the internal modem, and then select the option to disable the modem. • Check the port settings in Control Panel. Open the hardware Device Manager, and then double-click Ports (COM & LPT). If the serial or parallel port is not working • Make sure the port connection is secure. • Check the port settings in Control Panel. Open the hardware Device Manager, and then double-click Ports (COM & LPT). 80 Reference Guide

Section	Page
Software Product License Agreement	4
Contents	7
Getting Started with Your Notebook	10
Identifying Parts of the Notebook	11
Series 2100 and N1050v	11
Series 2500	14
Status Lights	17
Setting Up Your Notebook	19
Step 1: Insert the battery	19
Step 2: Connect AC power	20
Step 3: Connect a phone line	21
Step 4: Turn on the notebook	22
Step 5: Set up Windows	22
Basic Operation	23
Operating Your Notebook	24
Default power settings	24
To reset the notebook	25
To change the boot device	25
To use the TouchPad	26
To use the function hot keys	27
To use the One-Touch buttons	28
To use the Windows and Applications keys	29
To use the ALT GR key	29
Using CDs or DVDs	30
To insert or remove a CD or DVD	30
To play DVD movies	31
To create or copy CDs	31
Securing Your Notebook	32
To set up password protection	32
To lock your notebook	32
To attach a security cable	33
To protect against viruses	33
To lock the hard disk drive	34
Taking Care of Your Notebook	35
To protect your hard disk drive	35
To maintain your notebook	35
To safeguard your data	36
To extend the life of the display	36
To clean your notebook	36
Batteries and Power Management	37
Managing Power Consumption	38
How the notebook manages power automatically	38
Using Battery Power	40
To check battery status	40
To respond to a low-battery warning	40
To recharge the battery	41
To get the most from your batteries	41
Modem and Network Connections	43
Using the Modem	44
To change your modem settings	45
Connecting to a Local Area Network (LAN)	46
Making Wireless Network Connections (select models only)	47
To prepare for connections	47
To turn wireless communication on and off	49
Making Wireless Bluetooth Connections (select models only)	51
To turn Bluetooth communication on and off	51
To prepare for Bluetooth connections	52
To send or receive files using Bluetooth	53
Add-On Devices	54
Connecting External Devices	55
Connecting PC Cards	55
To insert or remove a PC Card	55
To connect an audio device	57
To use an external monitor	58
To connect an IEEE 1394 device (select models only)	59
To connect an infrared device (select models only)	60
To use a port replicator (select models only)	61
Installing Additional RAM (Memory)	64
To install a RAM expansion module	64
To remove a RAM expansion module	66
Replacing the Hard Disk Drive	68
To replace the hard disk drive	68
To replace the hard disk drive holder	69
To prepare a new hard disk drive	70
Troubleshooting and Maintenance	71
Troubleshooting Your Notebook	72
Audio problems	72
CD-ROM and DVD problems	73
Display problems	74
Hard disk drive problems	75
Heat problems	76
Infrared problems	76
Keyboard and pointing device problems	77
Local area network (LAN) problems	78
Memory problems	79
Modem problems	79
PC Card (PCMCIA) problems	82
Performance problems	82
Power and battery problems	83
Printing problems	85
Serial, parallel, and USB problems	86
Startup problems	87
Wireless problems	88
Configuring the Notebook	90
To run the BIOS Setup utility	90
To change video memory settings using BIOS Setup utility	93
Reinstalling and Updating Software	94
To replace a damaged QuickRestore System Recovery CD	94
Reference Information	95
Modem Reference Information	96
Modem Reference (Conexant)	96
Safety Information	103
Power Cords	103
Battery Safety	104
Laser Safety	104
LED Safety	105
Mercury Safety	105
Exposure to Radio Frequency Radiation	106
Regulatory Information	107
U.S.A.	107
Canada	109
European Union	110
Japan	112
New Zealand	113
Russia	114
International	114