Dell LATITUDE D400: инструкция

Dell™ Latitude™ CS/CS

x

 Portable Computers User's Guide

Information in this document is subject to change without notice. 

© 

1999 Dell Computer Corporation. All rights reserved.

Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.

Trademarks used in this text: 

Dell, Latitude, OptiPlex, Dimension, Inspiron, ExpressCharge

, the 

DELL

 logo, and 

DellWare

 are trademarks of Dell Computer Corporation; 

Microsoft

, 

Windows

, 

Windows NT

, and 

MS-DOS

 are registered trademarks of Microsoft Corporation; 

Intel

 and 

Pentium

 are registered trademarks of Intel Corporation. 

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation 

disclaims any proprietary interest in trademarks and trade names other than its own.

Initial release: 25 Jun 1999 

Last revised: 04 Nov 1999

Preface

Introduction

Setup and Operation

Powering Your Computer

Traveling With Your Computer

Drivers

Customizing Your Computer

Removing and Replacing Parts

Troubleshooting Your Computer

Technical Specifications

Getting Help

Back to Contents Page

AC Adapter:  Dell™ Latitude™ CS/CS x  Portable Computers User's Guide 

Using the AC Adapter 

The AC adapter converts AC power to the DC power required by the computer. The AC adapter kit includes the AC adapter with its attached DC 

cable (which inputs power to the computer) as well as an AC power cable that connects to an electrical outlet.  

You can connect the AC adapter with your computer either turned on or off. 

The AC adapter works with electrical outlets worldwide. However, power connectors vary among countries. Before you use AC power in a foreign 

country, you may need to obtain a new power cable designed for use in that country. 

If the computer is docked to one of Dell's C/Port Family Advanced Port Replicators (APR) or C/Dock Family Expansion Stations, it obtains power 

through the APR or expansion station, which must be connected to an electrical outlet.  

Connecting the AC Adapter 

1.

Connect the AC adapter's attached cable into the computer's AC adapter connector (see 

Figure 1

). 

2. Plug the AC power cable into the other end of the AC adapter. 

3. Plug the AC power cable into an electrical outlet.  

Figure 1. Connecting the AC Adapter

Turning On the Computer

To turn on the computer, press the 

power button

. 

Back to Contents Page

Using the AC Adapter

Connecting the AC Adapter

Turning On the Computer

NOTE: If you are running your computer on AC power with a battery installed, the AC adapter charges the battery (if needed) and then 

maintains the battery's charge. 

NOTICE: The AC adapter should be in a ventilated area, such as on a desktop or on the floor, when used to power the computer or 

charge the battery. Do not use the AC adapter in a poorly ventilated environment, such as inside a carrying case.

1

AC adapter 

2

  AC adapter's attached cable

3

  AC adapter connector

4

  AC power cable

NOTE: If your computer's operating system is "locked up"

—

that is, it does not respond to commands

—

press and hold down the power 

button for at least five seconds to turn off the computer.

Back to Contents Page

Power Management Settings:  Dell™ Latitude™ CS/CS x  Portable Computers User's  Guide 

Experimenting With Power Conservation 

In general, the lower the value you set for each power conservation feature, the longer the battery's charge lasts. On the other hand, setting high 

values tends to optimize the computer's performance. 

To evaluate the way that different settings affect how long you can operate the computer on battery power versus the relative efficiency of how the 

software performs, experiment as follows:  

l

Use the computer with all the options set at their default values. 

l

Use the computer with all the options disabled or set to 

Off

. 

l

Use the computer with all the options set to their minimum or maximum values.  

Using Key Combinations 

Table 1

 identifies the power management key combinations. 

Table 1. Key Combinations to Activate/Deactivate Features

*

 These key combinations do not function with the Advanced Configuration and Power Interface (ACPI

). 

Closing the Display 

One way to conserve power on the computer is to close the display when the computer is not in use. When you close the display and an external 

Experimenting With Power Conservation

Standby Mode

Using Key Combinations

Suspend-to-Disk Mode

Closing the Display

Power Management Properties for Microsoft Windows 98

Suspend Mode

Power Management Properties for Microsoft Windows NT

NOTE: To use key combinations on an external keyboard, enable the 

External Hot Key

 option in the System Setup program, and 

press <Scroll Lock> instead of <Fn>. 

Feature

Activate/Deactivate

Turn off display

To activate, press <Fn><d>.* 

To deactivate, move the cursor or press a key on the integrated or external keyboard. (If nothing 

happens, the computer may be in 

suspend

 or 

standby

 mode. Press the power button to resume 

normal operation.)  

Turn off hard-disk drive

To activate, press <Fn><h>.* 

Automatically deactivates when the hard-disk drive is accessed.  

NOTE: If a modular hard-disk drive is installed in the C/Dock media bay, you cannot turn off the 

hard-disk drive by pressing <Fn><h>

.  

Suspend mode

To activate, press <Fn><Esc>. 

To deactivate, press the power button.  

Suspend-to-disk mode

To activate, press <Fn><a>. (On a French keyboard, press <Fn><q>.)* 

To deactivate, press the power button.  

monitor is 

not

 connected, the computer's display shuts off and the computer enters 

suspend

 mode (

standby

 mode in Microsoft

® 

Windows

® 

98). 

To resume work, open the display. (The computer may take several seconds to resume operation.) 

Suspend Mode 

If your computer is running the Microsoft Windows 95 or Microsoft Windows NT

® 

operating system, suspend mode stops almost all computer 

activity, but leaves the computer ready to resume operations immediately in about 20 to 30 seconds. Use suspend mode whenever you leave the 

computer unattended. 

NOTICE: Windows 95 and Windows NT save data to random-access memory (RAM), not to your hard-disk drive, before entering 

suspend mode. If the computer enters suspend mode while running on battery power, data loss from RAM can occur if the battery 

discharges completely.

Suspend mode conserves battery power by turning off the microprocessor clock; the display; the hard-disk drive; the CD-ROM, DVD-ROM, or LS-

120 drive module (if installed); the external monitor connector; the external keyboard (if attached); the parallel port; the serial port; the touch pad; 

and the diskette drive.  

You can enter suspend mode immediately by pressing <Fn><Esc> (or <Scroll Lock><Esc> on an external keyboard if the 

External Hot Key

option is enabled in the System Setup program). 

When you enter suspend mode, the 

power indicator

 is not lit. 

Resume from suspend mode by pressing the power button. The computer may take several seconds to return to normal operation. 

Standby Mode 

If your computer is running the Microsoft Windows 98 operating system, standby mode turns off the display, stops the hard-disk drive, and turns off 

other internal devices so that the computer uses less battery power. When the computer resumes operation from standby mode, the desktop is 

restored exactly as it was before entering standby mode. 

NOTICE: Windows 98 saves data to random-access memory (RAM), not to your hard-disk drive, before entering standby mode. If the 

computer enters standby mode while running on battery power, data loss from RAM can occur if the battery discharges completely.

You can enter standby mode by pressing <Fn><Esc>.

To resume operation from standby mode, press the power button. 

Suspend-to-Disk Mode 

Suspend-to-disk (S2D) mode copies all system data to a reserved area

—

the S2D partition

—

on the hard-disk drive and then turns off all power to 

the computer. When you resume normal operation, the same programs will be running and the same files will be open that were loaded before you 

activated this mode. 

Place the computer in S2D mode if you intend to store the computer for longer than 40 days. S2D mode preserves the configuration information 

stored in nonvolatile random-access memory (NVRAM). The reserve battery maintains this information, but it may run out of energy after 40 days. 

If your system is running under 

Advanced Power Management

 (APM) mode, and if the 

External Hot Key

 option is enabled in the System Setup 

program, you can enter S2D mode by pressing <Fn><a> (or <Scroll Lock><a> on an external keyboard). On a French keyboard, press <Fn><q> 

or <Scroll Lock><q>.*  

Resume operation from S2D mode by pressing the power button. 

If you connect or remove devices while the computer is in S2D mode, the computer automatically recognizes the newly connected devices when it 

resumes normal operation. 

Some PC Cards may not operate correctly after resuming from S2D mode. If you encounter problems with a card, 

remove and reinsert the card

. 

NOTE: If an external monitor is connected when you close the display, the computer does not activate suspend mode. You can still use 

the external monitor.

NOTES: On resumption from suspend mode, if a password is set, the computer displays the password prompt screen. At the password 

prompt screen, if you do not enter a password within 2 minutes, the computer returns to suspend mode.

Suspend mode is known as standby mode under the Microsoft Windows 98 operating system.

NOTE: S2D mode helps preserve system data by quickly saving it to the hard-disk drive if you are about to run out of battery power.

NOTE: Dell creates an appropriately sized S2D partition before shipping the computer to you. Use the S2D utility to remove the file, to 

increase the size of the file, or to add the S2D file if you removed it. For more information about altering or creating an S2D file, see the 

* These key combinations may not function with future operating systems.

Power Management Properties for Windows 98 

Windows 98 with Advanced Power Management (APM) provides the 

Power Management

Properties

 window for setting power conservation 

features. 

To access the 

Power Management Properties

 window and set the power management features, perform the following steps:  

1. Click the 

Start

 button, point to 

Settings

, and click 

Control Panel

. 

2. Double-click the 

Power Management Properties

 icon. 

The 

Power Management Properties

 window contains the following tabs:  

l

Power Scheme

—

 allows you to change individual power management settings or select one of three power mode settings 

(

Always On

, 

Home/Office Desk

, or 

Portable/Laptop

) that each provide a set of default power management settings.

l

Alarms

—

 allows you to set the 

Low Battery

 and 

Critical Battery

 alarms to alert you when the computer battery falls below a 

certain percentage. When you received your computer, the 

Low Battery

 and 

Critical Battery

 alarm options were not checked. 

Dell recommends that you do not select these options. 

l

Power Meter

—

 allows you to view the percentage of battery life remaining when your computer is operating on battery power. If 

your computer is operating on AC power, the computer displays a message. 

l

Advanced

—

 allows you to display the 

Power Meter

 on the Windows 98 taskbar and to display a password prompt when the 

computer resumes operation from standby mode. 

Power Management Properties for Microsoft Windows NT 

Dell provides Softex software compatible with the Power Management Controller, which allows you to suspend and resume your portable 

computer without affecting your ability to use the docking station or its media bay. 

For information about Softex power management software, see the Softex user

’

s guides at 

http://www.dell.com/products/notebook/latitude/NT40.htm

 and see your 

Dell-Installed Microsoft Windows NT Workstation Setup Guide

. 

Back to Contents Page

readme.S2D

 file, which can be found in the 

Dell Utilities

 folder on your hard-disk drive or on the S2D diskette that came with your 

computer.