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Compaq Armada e500 Armada E500 Series Quick Reference Guide - Page 188

Solving USB Problems - usb boot

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Solving USB Problems Problem Possible Cause Solution External device connected to a USB connector does not work The operating system Reduce the number of limits external devices connected external USB connected by USB to devices to no more than two tiers which can two hubs on the first tier, include no more than and no more than one two hubs on the first keyboard and one tier and no more than pointing device on the one keyboard and first or second tier. one pointing device on the first or second tier. External device connected to USB connector does not work during startup (before Windows 95 loads) During startup, only Use the external device two tiers are only after Windows 95, supported by the USB Windows 98, or connector. These tiers Windows 2000 can include no more Professional has loaded. than two hubs on the first tier and no more than one keyboard and one pointing device on the first or second tier. Reduce the number of connected external USB devices to no more than two hubs on the first tier, and no more than one keyboard and one pointing device on the first or second tier. External devices in lower tiers do not work An unpowered hub is connected to another unpowered hub. Use only powered hubs. Make sure that all unpowered hubs are immediately preceded by powered hubs in the USB chain. IMPORTANT: External USB keyboards will not function until the operating system has been booted. 16-40 Troubleshooting

Section	Page
Notice	1
CONTENTS	2
TAKING A LOOK AT THE COMPUTER	10
Top Components	10
Left Side Components	12
Right Side Components	13
Rear Components	15
Bottom Components	16
Status Indicator Lights	17
USING THE KEYBOARD	18
Using the Pointing Device	18
Using Hotkeys	23
Using the Embedded Numeric Keypad	27
Easy Access Buttons	29
USING BATTERY PACKS	34
Learning About Battery Packs	34
Using a New Battery Pack	35
Charging Battery Packs	35
Inserting and Removing the Primary Battery Pack	36
Storing a Battery Pack	38
Maximizing Battery Pack Life	38
Recycling Used Battery Packs	39
System Beeps	39
MANAGING POWER	41
Selecting a Power Source	41
Using Suspend (Standby) and Hibernation	42
Managing Low-Battery Conditions	45
Charging a Battery Pack	47
Monitoring the Charge in a Battery Pack	48
Calibrating a Battery Pack	52
Using Power Preferences	55
Changing the Processor Performance Mode (Available on Select Models)	60
Setting SpeedStep Preferences	61
Conserving Battery Power	64
WORKING WITH REMOVABLE DRIVES AND DEVICE BAYS	67
Bay Configuration	67
Caring for Removable Drives	68
Selecting Diskettes	70
DualBay Devices	70
USING AN INTERNAL MODEM (AVAILABLE ON SELECT MODELS)	76
Connecting the Modem Cable	76
Setting up the Modem	77
Selecting Communication Software	78
Configuring the Modem	80
Using Modem Commands and Dial Modifiers	81
Using the Modem While Traveling Internationally	82
Reinstalling or Updating Drivers (Windows 95 or Windows 98)	84
Reinstalling or Updating Drivers (Windows NT 4.0)	85
CONNECTING TO A LOCAL AREA NETWORK (AVAILABLE ON SELECT MODELS)	87
Connecting the Network Cable	87
Turning a LAN Connection On and Off	88
Accessing the Network at Startup	88
Reinstalling or Updating Drivers (Windows 95 or Windows 98)	88
Reinstalling or Updating Drivers (Windows NT 4.0)	91
CONNECTING EXTERNAL DEVICES	94
Connecting an External Enhanced Keyboard	94
Connecting an External Monitor	94
Connecting a Television Monitor	95
Connecting a Mouse or Other External Pointing Device	96
Connecting a Serial Printer	96
Connecting a Parallel Printer	96
Connecting Infrared Equipment	97
Connecting USB Peripherals	99
Connecting to a Docking Device	99
USING PC CARDS	100
PC Card Types	100
Inserting a PC Card	100
Removing a PC Card	102
PC Card Device Drivers	103
Changing PC Card Settings	103
Managing PC Card Power	104
Zoomed Video	104
Stopping a PC Card	104
USING AUDIO FEATURES	105
Identifying the Audio Components	105
Using Internal and External Microphones	106
Using Internal and External Speakers/Headphones	107
Controlling Audio Volume	107
Speaker Ports	108
UPGRADING THE COMPUTER	109
Upgrading System Memory	109
Upgrading the Hard Drive	114
Attaching a Hard Drive Adapter	114
Adding an Internal Modem	114
MAINTENANCE AND TRAVEL GUIDELINES	115
Updating the System	115
Reinstalling Software	118
Caring for the Computer	118
Preparing the Computer for Shipping or Travel	119
Traveling with the Computer	119
SECURITY FEATURES	121
Types of Security	121
Using the Cable Lock	122
Using the Power-On Password	123
Using Quick Controls	127
Using the Setup Password	128
Enabling and Disabling Devices	131
DriveLock Overview	131
Compaq Computer Security (Windows 2000 Professional)	136
INTELLIGENT MANAGEABILITY	138
Intelligent Manageability Overview	138
Asset Management	139
Fault Management	140
Security Management	141
Configuration Management	141
COMPUTER SETUP AND DIAGNOSTICS UTILITIES	142
Selecting Computer Setup or Compaq Diagnostics for Windows	142
Using Computer Setup	143
Using Compaq Diagnostics for Windows	147
TROUBLESHOOTING	149
Troubleshooting Checklist	149
COMPAQ CUSTOMER SUPPORT	189
Preparing to Call Technical Support	189
Worldwide Telephone Numbers	190
REGULATORY NOTICES	195
Regulatory Agency Series Numbers	195
Federal Communications Commission Notice	196
Canadian Notice	197
Avis Canadien	197
European Notice	198
Japanese Notice	198
German Ergonomics Notice	198
Airline Travel Notice	198
Energy Star Compliance	199
Battery Notice	199
Power Cords	200
Laser Safety	200
Safety Precautions for Modems	202
U.S. Regulations Governing the Use of Modems	202
Telephone Consumer Protection Act of 1991	203
Canadian Regulations Governing the Use of Modems	204
New Zealand Modem Statements	205
Macrovision Corporation Notice	206
ELECTROSTATIC DISCHARGE	207
Preventing Electrostatic Discharge	207
Grounding Methods	208
SPECIFICATIONS	209