System Memory Map | NEC VX guide

Memory Map

The system supports system and video shadowing, both controlled through complementary metal oxide semiconductor (CMOS). The system supports BIOS as a cacheable area with write protection. The following table shows the system’s memory map.

System Memory Map

Memory Space	Size	Function
00000000h-0009FFFFh	640 KB	System Memory
000A0000h-000BFFFFh	128 KB	Video Memory
000C0000h-000DFFFFh	128 KB
000E0000h-000FFFFFh	128 KB	System and Video BIOS
01000000h-01FFFFFFh	32 MB	Extended Memory
02000000h-03FFFFFFh	32 MB	Extended Memory
04000000h-0FFFFFFFh	Up to 256 MB	Extended Memory

B-8 Specifications

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NEC VX manual System Memory Map

Contents

R S a V Proprietary Notice and Liability Disclaimer Contents Iv Contents Using the System Drives and Bays Vi Contents Specifications Using This Guide Using This Guide Text Conventions Related Documents Introducing the NEC Versa Before You Begin Introducing the NEC Versa About Your NEC Versa VX Notebook NEC Versa VX notebook computer Power and Battery Charging LEDs Around the Front of the SystemLCD Panel Control Panel Control Panel Power Button Status Icons Status LED icons Keyboard Panel and Base Unit Keyboard panelBase unit Keyboard Introducing the NEC Versa Introducing the NEC Versa Back system features Around the Back of the System Left side features Around the Left Side of the System Right side features Around the Right Side of the System Around the Bottom of the System Bottom of the system About the Port Replicator Port Replicator Getting Started VersaGlide features NEC VersaGlideGetting Started Power Sources Making VersaGlide AdjustmentsVersaGlide Tips Using the AC Adapter AC adapter Powering the System On and Off Using the BatteryConnecting the AC adapter Replacing the Battery Install the battery in your system as follows Removing the battery Low Battery Power Returning the Battery to its Normal StateInstalling the battery Handling the Battery Extending Battery Life Charging the Battery Battery Precautions Precautions for Recharging the Battery Disposing of the BatteryInternal Batteries Precautions System Care Getting Started Storage Requirements Routine Cleaning Clean or dust your system as follows Using the Bios Setup Utility Introducing Bios Setup Entering Bios SetupUsing the Bios Setup Utility Bios Setup Main Menu Bios Setup Main Menu Advanced Cmos Setup Looking at Screens Checking/Setting System Parameters Using KeysBios Setup Key Functions Resetting System Parameters Standard Cmos SetupStandard Cmos Setup Advanced Cmos Setup Advanced Cmos Setup System Security Setup System Security Setup Password Protection Establishing PasswordsHard Disk Drive Passwords Establishing Hard Disk Drive Passwords Power Management Setup Power Management Setup STF Custom Timeout Options Option Definition Boot Device Setup Boot Device Setup Peripheral Setup Peripheral Setup Managing System Power Other Bios Setup OptionsWindows 98 Power Management Properties Windows 98 Power Schemes Power Schemes Windows 98 Alarms Windows 98 Power MeterAlarms Windows 98 Advanced Windows 98 HibernateAdvanced Windows 98 Power Management States Recognizing the Windows 98 Power Management StatesWindows 98 Power Management Behavior Windows 95 Power Management States Recognizing the Windows 95 Power Management StatesWindows 95 Power Management Behavior Updating the Bios Obtaining the Bios Update Preparing the Bios Update Diskette Performing the Bios Update Identifying the Switch Settings Default switch settings Using the Operating System and Utilities Using the Operating System and Utilities Windows IntroductionWindows 98 Second Edition Taskbar Icons Windows NEC Customize Utility Windows NT Using Hdprepez in Windows 98 or Hdprepez Utility Application and Driver CD Launching the Application and Driver CD with Windows 98/95Launching the Application and Driver CD with Windows NT Personal Code Setting Utility Installing the A&D SoftwareApplication and Driver CD Dialog Box Installing the Personal Code Setting Utility Setting a Personal Code Installing the NEC Info Center DVD PlayerNEC Info Center Uninstalling the NEC Info Center Partition Magic Product Recovery CD Guidelines for Using the Product Recovery CD Product Recovery CD Options Full Disk Drive Restore Using the Operating System and Utilities Partition Only Restore System Diagnostics Using the Operating System and Utilities Using the System Drives and Bays Using the System Drives and Bays 24X CD-ROM Drive24X CD-ROM drive Changing the Auto Play Setting CD LoadingCD Care DVD-ROM Drive Hard Disk Drive Opening the panelRemoving the screw Memory Modules Removing the disk drive Memory bay cover and screw Memory module slot Installing the memory module Removing the memory module Using the System Drives and Bays Communicating with Your NEC Versa Connecting the Modem Mini-PCI ModemCommunicating with Your NEC Versa Installing the Online Modem/LAN Guides Mini-PCI LANMini-PCI Modem/LAN PC Cards Type II Cards Type II Extended CardsType III Cards Communication Cards Storage Cards Interface CardsOther Cards PC Card Slots Inserting a PC Card Inserting a PC card Internet Connections Removing a CardInternet Connection Wizard in Windows Accessing the Internet Sending and Receiving Email IR Port Modifying the Internet and Email Shortcut Keys Using the IR Port Enabling the IR Port Traveling Tips Preparing for Travel Packing for TravelTraveling Tips Using Power Connections Getting Through Customs Using Your Modem Using External Devices Connecting a monitor Using External DevicesMonitor Connecting a parallel printer Parallel Devices Connecting a serial device Serial Devices Connecting an external keyboard/mouse Keyboard/Mouse Connecting an external display device Television Connection Connecting a USB device USB Device Audio Options Port ReplicatorAudio ports Locating the docking lever Removing the expansion port cover Connecting the NEC Port Replicator Using Multimedia Audio Video Multimedia Applications Using Multimedia AudioRecording Line-In CD-ROM InputMicrophone Using Headphones Using the Built-In SpeakersUsing External Stereo Speakers Playing Back Using Digital Video Files Using Animation FilesVideo Multimedia Applications Solving System Problems Problem Checklist Startup Problems If You Need Assistance Problem Checklist TroubleshootingSolving System Problems Startup Problems Post Error Messages Post Error Messages If You Need Assistance Getting Service and Support Service and Support Contact Information Getting Service and Support Necc Support Services Necc Web SiteNecc FTP Site Email/Fax to Support Services Setting Up a Healthy Work Environment Setting Up a Healthy Work Environment Making Your Computer Work for You Adjust Your Chair Setting Up a Healthy Work Environment A-3Arrange Your Equipment Adjust Your Input Devices Adjust Your Screen or Monitor Setting Up a Healthy Work Environment A-5 Vary Your WorkdayPre-existing Conditions and Psychosocial Factors Setting Up a Healthy Work Environment Specifications Specifications System Components Main Battery Specifications B-3 Diskette Drive Specifications B-5 Mini-PCI Modem Dimensions Specifications B-7 Interrupt ControllersInterrupts Memory Map System Memory Map Frequently Asked Questions Frequently Asked Questions External MouseDisplay Frequently Asked Questions C-3 Which slots do my PC cards go? Why cant I boot from the diskette drive? Diskette Drive Frequently Asked Questions C-5 What happens if I leave a diskette in my diskette drive? Booting Power Management What is the function of Suspend-to-RAM? Standby in Windows Frequently Asked Questions C-7 What is a time-out? Frequently Asked Questions C-9 Miscellaneous How do I speed up my application? Frequently Asked Questions C-11 How do I save a file? Glossary Glossary To start up a computer. See cold boot and warm boot Description of a sound wave that consists of binary numbers Hz a unit of frequency equal to one cycle per second Connection that enables two devices to communicate MB 1,048,576 bytes Interface that communicates multiple data bits at a time Picture elements. Tiny dots that make up a screen image An interface that communicates information one bit at a time Svga To record or store information to a storage device Index Index-1 Index-2 Index-3 Index-4 Regulatory Statements FCC Statement for United States OnlyCanadian Department of Communications Compliance Statement Regulatory Statements Battery Replacement Battery DisposalEuropean Community Directive Conformance Statement Mini-PCI FCC Registration Numbers Declaration of Conformity NEC Versa