NEC NEC Versa 2500 Series User's Guide 25-10584-00 System Upgrades, Memory Upgrade Procedure

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Introduction 1-19

 

Table 1-7 Boot Setup Power Savings Menu (cont’d)

 

 

Item

Function

Cover Switch Con- This option allows you to effectively program the type of event

trol

which occurs when the display panel is closed.

 

Select SUSPEND, the computer enters the SUSPEND Mode

 

when the LCD Panel is closed.

 

Select Backlight Off, the system powers down the LCD when

 

the LCD Panel is closed.

Serial Port Ring Re- This option allows you to resume the system if an incoming

sume

call is received from the serial port modem.

 

Select Off, the computer does not resume.

 

Select On, the computer resumes.

 

This feature does not apply to PC card port modems.

SYSTEM UPGRADES

The NEC Versa notebook is easily upgradable to a higher capacity hard drive. In addition, you can add an optional second memory modules to increase the system memory to as much as 48 MB. This section provides the settings needed as well as illustrations for up- grading the system.

MEMORY UPGRADE PROCEDURE

The NEC Versa notebook allows you to install and expand the on-board 16 MB system memory via the memory compartment found under the keyboard. Inside the compartment is an extra memory module socket which can accommodate any standard JEDEC 8 MB and 16 MB DIMM modules.

For NEC Versa 2500 Series notebooks, the following memory configurations are applica- ble:

Table 1-8 16 MB Memory Configurations

On-Board Memory

Extra Socket

Total Memory

 

 

 

16 MB

empty

16 MB

16 MB

8 MB

24 MB

16 MB

16 MB

32 MB

16 MB

32 MB

48 MB

 

 

 

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Contents Sold by laptopia2005 do not Resell Preface Contents System Bios Upgrade Procedure Assembly Removing/Replacing the LED Board Removing/Replacing the Heat PlateVGA Standard Modes VGA Extended Modes VGA High Refresh Modes List of Tables Viii Contents Sold by laptopia2005 do not Resell For United States Use Only Bios Customized Utility Bios Upgrade UtilityDirect memory access Error checking and correctionService register National Authorized ServiceNational Service Response Phase lock loopUniversal asynchronous Receiver/transmitterVolt Vdc Volts, direct currentIntel P54CSLM-133 Model ConfigurationConfiguration NEC Versa Feature Highlights Feature HighlightsSystem Configuration System Configuration DiagramPower Switch/LCD Cover Switch Status Panel and Power IndicatorQuick Tour of the Notebook Main ComponentsDisables the alphanumeric keys where the embed Again to disable the embedded keys and resumeDed keys are located. Press the Num Lock key Normal keyboard operationFn Key Combination Summary cont’d VersaGlideRight Side of the Notebook Memory Slot CompartmentBuilt-in Disk Drive PC Card Slot CompartmentBattery Compartment Front of the NotebookRemoving the Battery Pack Left Side of the NotebookRear of the Notebook 11 Connecting an External Keyboard and PS/2 Mouse VGA Port Bottom of the Notebook Printer PortBattery Module Handle and Lock ROM Memory Compartment CoverSystem Bios Setup Program Boot Setup MenuBoot Main Setup Menu Option is 3.5, 1.44 MB disk drive Boot Main Setup Menu cont’d Boot Setup Peripherals MenuBoot Setup Security Menu Function PasswordPassword on Boot Password on ReStandby Time-out Boot Setup Power Savings MenuPower Saving System Upgrades Memory Upgrade ProcedureBoot Setup Power Savings Menu cont’d 16 MB Memory ConfigurationsSystem Bios Upgrade Procedure Sold by laptopia2005 do not Resell General Specifications NEC Versa 2500 Series SpecificationsNEC Versa 2500 Series Specifications cont’d Sold by laptopia2005 do not Resell AC 100V to 240V, 47/63Hz, 36W Max CD-ROM Product MIX Following table lists the NEC Versa 2500 Series product mixProduct Mix VersaMain Board Specifications System Board SpecificationsFollowing table lists system board specifications Transfer Board Specifications Converter Board SpecificationsFollowing table lists Transfer board specifications Following table lists Converter board specificationsLED Indicator Board Specifications LED Indicator Board SpecificationsFollowing table lists LED indicator board specifications I/O Board Specifications Board SpecificationsFollowing table lists I/O board specifications I/O Board Specifications cont’d LCD Inverter Board Specifications Following table lists LCD inverter board specificationsLCD Inverter Board Specifications SpecificationLED Status Indicators Diskette Drive Specifications10 Diskette Drive Specifications Status LED DescriptionsHDD Unit Specifications CD-ROM SpecificationsNimh Battery Pack Specifications Following table lists the standard battery specificationsFollowing table lists battery charger specifications DC/DC Converter & Battery Charger SpecificationsBattery Charger Specifications Keyboard Specifications AC/DC Adapter SpecificationsFollowing table lists keyboard specifications Following table lists AC/DC adapter specifications18 Bios Specifications Bios SpecificationsFollowing table lists Bios specifications Following table lists Micro-Controller specifications 18 Bios Specifications cont’d19 Micro-Controller Specifications MICRO-CONTROLLER Function DescriptionPower Management Features Mode Definition Following table lists power management specifications20 Power Management Modes Mode Device Speed21 Mode Definitions Power Management Features Mode TransitionFollowing table lists power management transition modes Environmental Specifications Following table lists appropriate operating temperaturesHOT KEY Definition Following table lists hot key definitionsShock Specifications Power Source SpecificationsVibration Specifications 27 Electro-Static Discharge Specifications ELECTRO-STATIC Discharge ESD SpecificationsFollowing table lists static discharge specifications Hardware Functional Overview Functional Block Diagram System BiosSystem Processor Major Functional BlocksSystem Logic Controller Sold by laptopia2005 do not Resell Memory Subsystem Dram MemoryROM Memory SubsystemVideo Subsystem Video Chipset ControllerExternal VGA Capability Keyboard SubsystemPcmcia Controller and Sockets Hard Disk SubsystemPower Subsystem AC Power AdapterDiskette Drive Subsystem Poin ING Device SubsystemLCD Inverter Board Assembly Internal Battery PackPower Board Preventive Maintenance Cleaning the Notebook’s ExteriorProtecting the Disk Drives Cleaning the Notebook’s InteriorHandling the Computer Battery Packs Maintaining the LCD Quality Required Tools and EquipmentParts Removal and Replacement Procedures Removing/Replacing the Notebook Battery PackRemoving/Replacing the Hard Disk Drive Module Removing/Replacing the Diskette Drive ModuleDiskette Drive Module Assembly Removing/Replacing the LCD Status Bar Cover and HingesRemoving/Replacing the CPU Removing/Replacing the KeyboardRemoving/Replacing the Heat Plate Removing/Replacing the Cover-Display LCD Assembly Module Removing/Replacing the LED Board LED Board Module Assembly Removing/Replacing the System Board and I/O BoardSeparating the System Board and I/O Board System Board and I/O BoardsRemoving/Replacing the Power Board I/O Board Module AssemblyDescription Part Number Illustrated Parts BreakdownNEC Versa 2500 Series Field-Replaceable Parts NEC Versa 2500 Series Field-Replaceable Parts cont’d Not shown in IPB figureNEC Versa 2500 Series Illustrated Parts Breakdown Packaging and Documentation Packaging and Documentation Part NumbersService Information NEC Service and Information Telephone NumbersService Call Technical SupportProduct Information Ordering Information from FastFactsHelpful Starters POWER-ON Self Test Post Post Error MessagesPost Messages Message Possible Cause ActionPost Error Messages cont’d SetupValue , read hex-value Bios Informational Messages Informational MessagesRun-time Error Messages Following table lists run-time error messagesRun-time Error Messages Message Cause ActionProblem Corrective Actions Quick TroubleshootingQuick Troubleshooting Quick Troubleshooting cont’d Sold by laptopia2005 do not Resell Following table lists VGA standard modes Table A-1 VGA Standard Modes Text ModeVGA Standard Modes Table A-4 VGA Standard Modes Packed Pixel Mode Table A-2 VGA Standard Modes Graphics ModeTable A-3 VGA Standard Modes Planar Mode Table A-5 VGA Extended Modes Text Mode Table A-6 VGA Extended Modes 4-Bit Linear ModeTable A-7 VGA Extended Modes 8-Bit Linear Mode Table A-8 VGA Extended Modes 15-Bit Linear ModeTable A-12 VGA Extended Modes Packed Pixel Mode Table A-10 VGA Extended Modes 24-Bit Linear ModeTable A-11 VGA Extended Modes Planar Mode Table A-13 VGA High Refresh Modes Packed Pixel Mode Table A-14 VGA High Refresh Modes Planar ModeTable A-15 VGA High Refresh Modes Packed Pixel Mode VGA High Refresh ModesBattery Replacement Index Memory Index-3