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NEC POWERMATE VE - SERVICE MANUAL 08-1996 Service Manual

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PROPRIETARY NOTICE AND LIABILITY DISCLAIMER
The information disclosed in this document, including all designs and related materials, is
the valuable property of NEC Corporation (NEC) and/or its licensors. NEC and/or its licen-
sors, as appropriate, reserve all patent, copyright and other proprietary rights to this docu-
ment, including all design, manufacturing, reproduction, use, and sales rights thereto, except
to the extent said rights are expressly granted to others.
The NEC product(s) discussed in this document are warranted in accordance with the terms
of the Warranty Statement accompanying each product. However, actual performance of
each such product is dependent upon factors such as system configuration, customer data,
and operator control. Since implementation by customers of each product may vary, the
suitability of specific product configurations and applications must be determined by the
customer and is not warranted by NEC.
To allow for design and specification improvements, the information in this document is
subject to change at any time, without notice. Reproduction of this document or portions
thereof without prior written approval of NEC is prohibited.
MultiSync and PowerMate are U.S. registered trademarks of NEC Technologies, Inc.
FastFacts is a U.S. trademark of NEC Technologies, Inc.
All other product, brand, or trade names used in this publication are the trademarks or registered
trademarks of their respective trademark owners.
Copyright 1996
NEC Technologies, Inc.
1414 Massachusetts Avenue
Boxborough, MA 01719
All Rights Reserved
First Printing — August 1996
Copyright 1996
NEC Corporation
7-1 Shiba 5-Chome, Minato-Ku
Tokyo 108-01, Japan
All Rights Reserved

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Summary of Contents for NEC POWERMATE VE - SERVICE MANUAL 08-1996

  • Page 1 The information disclosed in this document, including all designs and related materials, is the valuable property of NEC Corporation (NEC) and/or its licensors. NEC and/or its licen- sors, as appropriate, reserve all patent, copyright and other proprietary rights to this docu- ment, including all design, manufacturing, reproduction, use, and sales rights thereto, except to the extent said rights are expressly granted to others.

  • Page 2: Table Of Contents

    Contents Preface......................... Abbreviations....................... xiii Section 1 Technical Information System Chassis ......................1-1 System Board ......................1-2 Processor ......................1-5 Secondary Cache ....................1-5 System and Video BIOS ..................1-5 Power Management ....................1-6 I/O Addressing......................1-6 System Memory....................1-8 Interrupt Controller....................1-9 Integrated Graphics....................1-10 Motion Video Controller................1-10 Graphics Accelerator..................1-11 Video Memory....................
  • Page 3 Contents Desktop Management Interface..................1-17 DMI Components ....................1-18 Manageable Components ..................1-18 CI Module ......................1-18 DMI Browser .......................1-18 Usage ........................1-20 Troubleshooting....................1-20 Specifications.......................1-21 Section 2 Setup and Operation Unpacking And Repacking...................2-1 Setup ...........................2-1 CD-ROM Reader......................2-4 System configuration ....................2-5 Setup Utility......................2-6 How to Start Setup ....................2-6 How to Use Setup....................2-7 Menu Bar......................
  • Page 4 Contents Load Previous Values ................... 2-21 Save Changes....................2-21 BIOS Update Utility ....................2-21 Using the BIOS Update Utility................2-22 Section 3 Option Installation General Rules For Installing Options ................3-1 Precautions ........................3-2 Removing the System Unit Cover................3-3 Expansion Boards ......................3-4 Expansion Slot Locations..................3-4 Expansion Board Installation.................3-5 Inside Slot Expansion Board Installation ............
  • Page 5 Replacing the 3 1/2-Inch Drive Bracket............3-27 Adding External Options....................3-28 Parallel Printer ......................3-29 RS-232C Device Connection.................3-30 Section 4 Maintenance and Troubleshooting Online Services ......................4-1 NEC’s FastFacts Service..................4-2 NEC Bulletin Board Service..................4-3 America Online Service..................4-5 Internet .........................4-6 Maintenance ........................4-6 System Cleaning....................4-6 Keyboard Cleaning....................4-7 Mouse Cleaning ....................4-7 Troubleshooting......................4-9...
  • Page 6 Contents Appendix A Connector Pin Assignments Serial Interface Connectors ..................A-3 Parallel Interface Connector ..................A-4 VGA Interface Connector Pin Assignments..............A-5 Speaker Connector Pin Assignments ................A-5 Power Supply Connector .....................A-6 Keyboard And Mouse Connectors................A-6 Suspend Button Connector ..................A-6 Fan Connector ......................A-7 Diskette Drive Interface Pin Assignments..............A-7 IDE Interface Connectors ....................A-8 SIMM Sockets......................A-9 ISA/PCI-Bus Backboard Connector Pin Assignments...........A-10...
  • Page 7 viii Contents Typical CD-ROM Reader Controls and Indicators..........2-5 Loosen Cover Screws ..................3-3 Releasing the Cover ..................3-3 Inserting the Board ..................3-6 Removing the Slot Cover Support Screws............3-7 Attaching the Slot Cover Support ..............3-7 System Board Upgrade Sockets and Connectors ..........3-8 Removing a SIMM..................3-11 3-10 Inserting the SIMM..................3-12 3-11...
  • Page 8 Contents 3 1/2-Inch Diskette and Hard Disk Drive Screws..........5-6 Indicator Panel Connectors ................5-7 Blank Panel Tabs ...................5-8 5-10 Internal Speaker .....................5-9 5-11 SIMM Socket ....................5-10 5-12 5 1/4-Inch Device Screws................5-11 5-13 Power Button Screws ..................5-12 5-14 Power Supply Screws ..................5-12 5-15 System Board Connectors and Screws ............5-13 5-16...
  • Page 9 System Security Options ................2-17 2-10 Power Management Parameters ..............2-19 Recommended Memory Upgrade Path ............3-10 NEC Service and Information Telephone Numbers.........4-1 Problems and Solutions ..................4-9 PowerMate Ve Disassembly Sequence ............5-1 PowerMate Ve Field-Replaceable Parts List ...........5-14 PowerMate Ve Documentation and Packaging ..........5-15 Optional Replacement Parts ................5-16...

  • Page 10: Preface

    Section 4, Maintenance and Troubleshooting, includes a list of NEC service information and telephone numbers that provide access to the NEC Bulletin Board System (BBS), FastFacts, and Technical Information Bulletins. Included are recommended maintenance information and a lists possible problem and solutions for computer.

  • Page 11: Abbreviations

    xiii Abbreviations ampere error checking and correction alternating current enhanced capabilities port (ECP) advanced technology (IBM PC) Enhanced Graphics Adapter Bulletin Board System Enhanced Parallel Port binary-coded decimal EPROM erasable and programmable ROM BIOS Customized Utility EVGA Enhanced Video Graphics Array BIOS basic input/output system Fahrenheit...
  • Page 12 Abbreviations milliamps Technical Support Center maximum transistor/transistor logic megabyte tracks per inch Monochrome Display Adapter volt modified frequency modulation volts, alernating current megahertz volts, direct current microphone VESA video electronics standards association MIDI musical instrument device interface Video Graphics Array multimedia PC VRAM video RAM millimeter...

  • Page 13: Section 1 Technical Information

    Section 1 Technical Information ® The PowerMate Ve Series come standard with an Intel Pentium™ processor, a 3 1/2-inch 1.44 megabyte (MB) diskette drive, 8- or 16-MB random access memory (RAM), and 1 MB of video dynamic random access memory (DRAM). The PowerMate Ve system configurations are listed in Table 1-1.

  • Page 14: System Board

    Technical Information Figure 1-1 shows front panel features and locations of the accessible storage devices in a desktop system. Multimedia systems come with a CD-ROM reader installed in the top accessible device bay. 3 1/2-Inch Diskette Drive 5 1/4-Inch Accessible Device Bays Power Button System Controls...
  • Page 15 Technical Information 8-MB or 16-MB EDO RAM (16 MB in multimedia configurations) ships with 32-bit, non-parity, 60-ns single-inline memory modules (SIMMs) RAM expandable up to 128 MB 1.2 GB hard disk integrated graphics Peripheral Component Interconnect (PCI) graphical user interface (GUI) accelerator and motion video playback controller using SiS 6205 Graphics and Video Accelerator standard 1-MB (two 512K x 16) video DRAM, expandable to 2 MB...

  • Page 16: System Board Chips

    Technical Information PS/2-style keyboard bidirectional Enhanced Parallel Port (EPP) and enhanced capabilities port (ECP) are supported for a parallel printer serial devices through two buffered 16C550 UART serial ports, each supporting up to 19.2 KB per second external speakers, microphone, and headphone connectors (multimedia configurations only) MIDI/joystick connector on the system board for installation of an optional MIDI/joystick kit...

  • Page 17: Processor

    Technical Information Processor The PowerMate Ve series of computers use the following Pentium processors: PowerMate V100e — 100-MHz processor with internal speed of 100 MHz and external speed of 66 MHz. PowerMate V133e — 133-MHz processor with internal speed of 133 MHz and external speed of 66 MHz.

  • Page 18: Power Management

    Technical Information The Flash ROM allows the system and video BIOS to be upgraded with the BIOS Update utility, without removing the ROM (see Section 2 for further information on the BIOS Update utility). The Flash ROM supports the reprogramming of the system BIOS and the video BIOS.

  • Page 19: I/O Address Map

    Technical Information Table 1-4 I/O Address Map Address (Hex) I/O Device Name 0000-000F DMA controller 1 (channel 0-3) 0020-0021 Interrupt controller 1 0040-0043 Timer 1 0048-004B Timer 2 0060 Keyboard controller data byte 0061 NMI status and speaker control 0064 Keyboard controller cmd/status byte 0070-007F Real-time clock, NMI mask...

  • Page 20: System Memory

    Technical Information Table 1-4 I/O Address Map Address (Hex) I/O Device Name 378-37F Parallel port 1 3B0-3BF Mono display & printer adapter 3C0-3CF EGA adapter 3D0-3DF CGA adapter 3F0-3F5, 3F7 Floppy controller (primary) 3F8-3FF Serial port 1 CF8-CFF PCI configuration space System Memory The non-multimedia V100e systems come standard with 8 MB of EDO memory: 640 KB of base memory and 7 MB of extended memory.

  • Page 21: Interrupt Controller

    Technical Information Table 1-5 SIMM Memory Upgrade Path Total Memory SIMM 1 SIMM 2 SIMM 3 SIMM 4 8 MB 4 MB 4 MB Empty Empty 16 MB 4 MB 4 MB 4 MB 4 MB 16 MB 8 MB 8 MB Empty Empty...

  • Page 22: Integrated Graphics

    1-10 Technical Information Table 1-6 Interrupt Level Assignments Interrupt Priority Interrupt Device IRQ00 System Timer IRQ01 Keyboard IRQ02 Audio (multimedia configurations only) IRQ03 COM2 IRQ04 COM1 IRQ05 Audio (multimedia configurations only) IRQ06 Diskette Drive Controller IRQ07 Parallel Port LPT1 IRQ08 Clock/Calendar IRQ09 Audio (multimedia configurations only)

  • Page 23: Graphics Accelerator

    Technical Information 1-11 MPEG is a compression/decompression standard developed by the Motion Picture Experts Group. MPEG produces full-screen 30 fps, broadcast-quality digital video. The video controller architecture maximizes the motion video performance and removes bandwidth bottlenecks to display multimedia data at its full speed. Graphics Accelerator The graphics accelerator is specifically designed for graphics-intensive operations, text and color pixel amplification, and scrolling.

  • Page 24: Isa Bus

    1-12 Technical Information ISA Bus The system board uses the ISA bus for transferring data between the processor and I/O peripherals and expansion boards. The ISA bus supports 16-bit data transfers and typically operates at 8 MHz. ISA expansion slot connector pin assignments are provided in Appendix A.

  • Page 25: Parallel Interface

    Technical Information 1-13 Parallel Interface The system has a 25-pin parallel bidirectional enhanced parallel port on the system board. Port specifications conform to the IBM-PC standards. The port supports Enhanced Capabilities Port (ECP) and Enhanced Parallel Port (EPP) modes for devices that require ECP or EPP protocols.

  • Page 26: Power Supply

    1-14 Technical Information I/O addresses and interrupt levels for the two channels are given in Table 1-8. The interrupt level is selectable via Setup to either IRQ3 or IRQ4. Software selectable base addresses are 3F8h, 2F8h, 3E8h, and 2E8h. NOTE: Any interrupts used for the built-in serial ports are not available for ISA parallel ports.

  • Page 27: Diskette Drive

    Technical Information 1-15 DISKETTE DRIVE Up to two diskette drives are supported. The installed 3 1/2-inch diskette drive is connected by a single ribbon cable with two drive connectors. The diskette drive cable plugs directly into the system board. Typically both diskette drives are terminated. Connector locations are given in Appendix A.

  • Page 28: Cd-Rom Reader

    1-16 Technical Information built-in 16-bit 128x oversampling Sigma-Delta Stereo Codec with 85dB S/N ratio built-in five-channel 16/32 step MPC compatible stereo mixer with master volume and sample rates up to 48 Hz stereo dual DMA channel and built-in FIFOs for full duplex simultaneous playback and record in 16-bit stereo WaveBlaster upgradeable for Wavetable synthesis 3D sound effects...

  • Page 29: Plug And Play

    Technical Information 1-17 PLUG AND PLAY The system comes with a Plug and Play BIOS which supports Plug and Play technology. Plug and Play eliminates complicated setup procedures for installing Plug and Play expansion boards. With Plug and Play, adding a Plug and Play expansion board is done by turning off the system, installing the board, and turning on the system.

  • Page 30: Dmi Components

    The Browser has the ability to set attributes and manage DMI components. The NEC Browser can only access the local MIF database. The Browser lets you access MIF attributes according to the structure defined by the DMTF. It is not intended to be a general PC management application.
  • Page 31 Technical Information 1-19 The NEC DMI Browser has two sections: an Overview and a Detailed View. The Overview displays pertinent information on the system. In addition, you can click on each of eight buttons provided to obtain more information on each subject. The organization of the data in the Overview presents a comprehensive view of the system.

  • Page 32: Usage

    1-20 Technical Information Usage To start the NEC DMI Viewer, simply double click on the NEC DMI icon in the NEC Utilities group in Windows. The initial display contains the system serial number, model number, asset tag number, processor information, serial and parallel ports and their status, video information, HDD information, and memory information.

  • Page 33: Specifications

    Technical Information 1-21 SPECIFICATIONS System specifications are included in Table 1-9. Table 1-9 Specifications Item Specification Dimensions and Weight Width: 17 inches (43.18 cm) Depth: 16 inches (40.64 cm) Height: 4 inches (10.6 cm) Weight: 22 lb (11.1 kg) (dependent upon options) Keyboard Width: 19.0 inches (48.3 cm) Depth: 8.4 inches (21.3 cm)
  • Page 34 1-22 Technical Information Table 1-9 Specifications Item Specification Integrated Graphics SiS 6205 PCI Graphics & Video Accelerator 1-MB video DRAM standard, expandable to 2 MB Maximum resolution 1280 x 1024 pixels Battery coin-type battery Power Supply 145 Watt, 115 V/230V switch selectable CD-ROM Reader See Appendix D for more specifications (Multimedia only)

  • Page 35: Section 2 Setup And Operation

    Setup includes unpacking, setting up, and powering on the system. It also includes information for configuring the system with the setup program, using the NEC bulletin board service, and running the BIOS update utility. Setting system board jumpers is described in Appendix B, System Board Jumpers.

  • Page 36: Voltage Selector Switch

    Setup and Operation Voltage Selector Switch System Power Switch Figure 2-1 Voltage Selector Switch NOTE: The correct AC input voltage must be properly set. Select the appropriate voltage with the voltage selector switch located at the rear of the system. Connect the keyboard, mouse, monitor, and printer cables to the back of the system unit (see Figure 2-2).

  • Page 37: Connecting The Microphone

    Setup and Operation If installing a multimedia system, connect the speakers as follows. Attach the two-connector speaker cable to the left speaker and to the L SPEAKER OUTPUT jack on the right speaker. Locate the three-connector speaker cable. Match and attach the color-coded red and white cable connectors to the color- coded sockets on the right speaker.

  • Page 38: Cd-Rom Reader

    Full-Power mode. CD-ROM READER An NEC 8X CD-ROM reader (see Figure 2-5) comes preinstalled as drive E in the multimedia configurations. The reader is set as a master device, and is connected to the secondary IDE/PCI port on the system board.

  • Page 39: System Configuration

    Setup and Operation Use the CD-ROM reader to load and start programs from a CD or to play audio CDs. The CD-ROM reader has the following controls and indicators: jack for connecting headphones with a stereo mini-jack plug volume control for adjusting the headphone volume busy lamp that lights during read operations open/close button for opening or closing the CD tray when the power is on.

  • Page 40: Setup Utility

    Setup and Operation NOTE: The system ships from the factory with the correct system parameters for the configuration. Unless setting the time and date, setting security features, customizing the system, or adding optional hardware, Setup does not need to be run. System configuration information is stored in nonvolatile memory.

  • Page 41: How To Use Setup

    Setup and Operation NOTE: The screen shown is typical of the system. The actual items on the Main Menu depend upon the hardware installed in the system. PhoenixBIOS Setup — Copyright 1992-96 Phoenix Technologies Ltd. Main Advanced Security Power Boot Exit System Time :19:20]...

  • Page 42: Menu Bar

    Setup and Operation The legend bar the area at the bottom of the screen. The legend bar provides a summary of command keys for using Setup. The General Help window a window that appears any time during Setup after pressing Alt H .

  • Page 43: Legend Bar

    Setup and Operation Legend Bar Use the keys listed in the legend bar on the bottom of the Setup menu to make the selections or exit the current menu. Table 2-1 describes the legend keys and their alternates. Table 2-1 Setup Key Functions Function F1 or Alt-H Displays General Help window (described later in this section).

  • Page 44: Field Help Window

    2-10 Setup and Operation Field Help Window The Field Help window or Item Specific Help window on the right side of each menu displays the help text for the currently selected Setup option. It updates as the cursor is moved to each new field. General Help Window Pressing Alt H...

  • Page 45: Ide Adapters

    Setup and Operation 2-11 Table 2-2 Main Menu Parameters Parameter Options Description Boot Options Described in the following sections. System Memory Automatically detected Displays the amount of conventional memory by the system detected at power-on. Extended Memory Automatically detected Displays the amount of extended memory by the system detected at power-on.

  • Page 46: Ide Hard Disk Parameters

    2-12 Setup and Operation IDE Adapter 0 configures the primary IDE/PCI port (primary channel), IDE Adapter 1 configures the secondary IDE port. Each IDE Adapter parameter has a right-pointing arrow to the left of it. Selecting the option displays an IDE adapters advanced features menu with IDE hard disk parameters. Select an IDE Adapter option and set parameters for each hard disk separately.

  • Page 47: Memory Cache

    Setup and Operation 2-13 Memory Cache For memory caching parameters, select "Memory Cache" directly from the Main Menu summary window. See Table 2-4 for a description of memory cache parameters. CAUTION: Incorrect settings can cause the system to malfunction. Table 2-4 Memory Cache Parameters Parameter Options Description...

  • Page 48: Numlock

    2-14 Setup and Operation Table 2-5 Boot Parameters Parameters Options Description Summary Screen Enabled (default) Displays system configuration at the end of boot- Disabled Floppy Check Enabled (default) Verifies diskette type during boot-up. Disabling Disabled speeds up boot time. Last Boot Fail 3 (default) Sets the number of times for user to boot system.

  • Page 49: Advanced Menu

    Setup and Operation 2-15 Advanced Menu Accessing the Advanced menu might require a Supervisor password. See Table 2-7 for Advanced Menu parameters. CAUTION: Setting items in the Advanced menu to incorrect values can cause the system to malfunction. Table 2-7 Advanced Menu Parameters Parameter Options Description...

  • Page 50: Integrated Peripherals Parameters

    2-16 Setup and Operation Use the legend keys to make the selections and exit to the Main Menu. Use Table 2-8 to configure the peripherals. Table 2-8 Integrated Peripherals Parameters Feature Options Description COM A Port Disabled Selects a unique address and interrupt request COM B Port User-selectable settings for the listed COM ports.

  • Page 51: Security Menu

    Setup and Operation 2-17 Security Menu Selecting “Security” from the Main Menu displays a menu with system security options. NOTE: The Setup program can be entered with either a User or Supervisor password. However, more Setup choices are available with the Supervisor password.

  • Page 52: Power Menu

    2-18 Setup and Operation Table 2-9 System Security Options Feature Options Description Set User Password Up to seven Pressing Enter displays the dialog box for alphanumeric entering the user password. This password gives characters RESTRICTED access to Setup menus. Requires prior setting of Supervisor password.

  • Page 53: Boot Menu

    Setup and Operation 2-19 Table 2-10 Power Management Parameters Feature Options Description Enabled (default) Advanced power management (APM) allows Disable APM-aware software to better manage power savings. Power Savings Mode Customize (default) Maximum, Medium, and Minimum set power- Disabled management options with predefined values. Maximum Select Customize to make customize selections.

  • Page 54: Exit Menu

    2-20 Setup and Operation Exit Menu Selecting “Exit” from the menu bar displays the following exit options. Save Changes & Exit Discard Changes & Exit Get Default Values Load Previous Values Save Changes. The following subsections describe each of the options on the Exit Menu. Note that does not exit this menu.

  • Page 55: Load Previous Values

    Performing an update is done with a BIOS flash diskette. The diskette, which contains the latest version of the BIOS code, can be obtained from NEC Technologies or, if a modem is available, the latest BIOS can be downloaded from NEC's Bulletin Board Service (BBS).

  • Page 56: Using The Bios Update Utility

    2-22 Setup and Operation Using the BIOS Update Utility Update the BIOS from the BIOS flash diskette as follows. Write down the Setup parameters currently set on the system. Turn off the system. Insert the flash diskette in drive A, and turn on the system. The update procedes automatically and shows a BIOS Update successfully completed message when done.

  • Page 57: Section 3 Option Installation

    Section 3 Option Installation This section provides instructions for installing the following options: expansion boards SIMM memory upgrade video memory upgrade processor upgrade data storage devices external options. All options require that the system cover be removed. Procedures for removing the cover is included in this section.

  • Page 58: Precautions

    Option Installation PRECAUTIONS Take care when working inside the system and when handling computer components. Avoid electric shock or personal injury by observing the following warning. WARNING: Before removing the system unit cover, turn off the power and unplug the system power cable.

  • Page 59: Removing The System Unit Cover

    Option Installation Removing the System Unit Cover The following procedure describes how to remove the system unit cover. WARNING: Before removing the system unit cover, turn off the power and unplug the system power cable. Power is removed only when the power cable is unplugged.

  • Page 60: Expansion Boards

    Option Installation Figure 3-2 Releasing the Cover Lift the cover up and away from the system unit. Reinstall the cover by reversing steps 1 through 5, above. Be sure that the cover tabs on the sides of the cover align inside the frame of the unit when positioning the cover over the chassis.

  • Page 61: Expansion Board Installation

    Option Installation PCI Slot ISA Slot PCI/ISA Slot ISA Slot Figure 3-3 Locating Expansion Slots Expansion Board Installation Install expansion boards in the system as follows. Remove the system unit cover as previously described. Follow any preinstallation instructions that come with the expansion board (such as setting switches or jumpers on the board).
  • Page 62 Option Installation CAUTION: A slot cover can damage the system board or any option board if it falls into the system. Take care to keep the slot cover from falling when removing the screw. If the slot cover does fall into the unit, remove it before replacing the cover.

  • Page 63: Inside Slot Expansion Board Installation

    Option Installation Figure 3-5 Inserting the Board Attach any signal cables required by the expansion board. Replace the system unit cover. Inside Slot Expansion Board Installation Use this procedure if installing an expansion board into the inside slot. Remove the system unit cover as previously described. Follow any preinstallation instructions that come with the expansion board (such as setting switches or jumpers on the board).
  • Page 64 Option Installation Slot Cover Slot Cover Support Screws Figure 3-6 Removing the Slot Cover Support Screws Hold the board by its edges, component side down and the bracket end facing the rear of the unit, and insert it into the expansion slot. Press the board firmly into the expansion slot connector.

  • Page 65: System Board Options

    Option Installation SYSTEM BOARD OPTIONS SIMM, video, and processor OverDrives require locating the connector on the system board. See the following figure for connector locations. Audio Wave Cache Connector Socket Processor Socket SIMM Socket 1 SIMM Socket 2 SIMM Socket 3 Video DRAM Sockets SIMM...
  • Page 66 3-10 Option Installation locate the sockets for SIMM installation. Locate the four SIMM sockets on the system board (see Figure 3-8). If any cables block access to the SIMM sockets, label and disconnect them. If any boards block access to the sockets, remove them. Use Table 3-1 to determine the SIMM configuration needed to upgrade memory and to identify the sockets for SIMM installation.

  • Page 67: Simm Removal

    Option Installation 3-11 SIMM Removal Remove a SIMM as follows. CAUTION: Reduce static discharge by touching the system’s metal chassis. Remove the system unit cover as previously described. Locate the SIMM sockets (see Figure 3-8). Press the metal clips at the outer edges of the socket away from the SIMM. Push the SIMM away from the locking tabs and remove it from the socket (see Figure 3-9).

  • Page 68: Video Upgrade

    3-12 Option Installation CAUTION: Before installing a SIMM, reduce static discharge by touching the system’s metal chassis. Position the SIMM in the socket. The notched end of the SIMM allows only the correct positioning. Insert the SIMM at an angle into the socket. Tilt the SIMM towards the locking tabs using equal pressure at the ends of the SIMM until it locks into the socket (see Figure 3-10).

  • Page 69: Processor Upgrade

    Option Installation 3-13 CAUTION: Reduce static discharge by touching the system’s metal chassis. Align the notched ends of the module and socket (see Figure 3-11). Using equal pressure, gently press the module into the socket. Repeat for the second module. Notched End of Module Notched Corner...

  • Page 70: Processor Removal

    3-14 Option Installation Processor Removal Remove the installed processor on the system board as follows. Remove the system unit cover as previously described. Locate the processor socket (see Figure 3-8). If any expansion boards are obstructing the socket, remove the boards. Release the heatsink clip from the tabs on the socket.

  • Page 71: Data Storage Devices

    Option Installation 3-15 Replace any boards removed during this procedure. Replace the system unit cover. DATA STORAGE DEVICES The system board in the computer supports the following storage devices: up to two diskette drives, including the standard 1.44-MB diskette drive up to four IDE devices such as IDE hard disks and an IDE CD-ROM reader.

  • Page 72: Device Preparation

    3-16 Option Installation Figure 3-13 shows the device locations in the system. 3 1/2-Inch Bay (contains 1.44-MB diskette drive) 5 1/4-Inch Accessible Bays* 3 1/2-Inch Internal Bay (contains hard disk in hard disk configurations) * Top 5 1/4-inch bay is available in some configurations. Figure 3-13 Locating Device Bays Device Preparation Before installing a storage device in the system, follow any preinstallation instructions that...
  • Page 73 Option Installation 3-17 The diskette drive and IDE cables shipped with the system each support two devices. Cable connector locations on the system board are shown in Figure 3-14. Primary IDE Signal Connector Secondary IDE Signal Connector Diskette Drive Signal Pin 1 Connector Figure 3-14 System Board Cable Connectors...
  • Page 74 3-18 Option Installation Figure 3-15 shows a three-connector diskette drive signal cable. Attaches to 1.44-MB Diskette Drive Attaches to Optional Diskette Drive Attaches to the System Board Figure 3-15 Optional Diskette Drive Signal Cable IDE Signal Cables Hard disk systems come with a three-connector IDE interface cable attached to the primary IDE connector.

  • Page 75: System Power Cables

    Option Installation 3-19 Figure 3-16 shows a typical three-connector IDE cable. If the IDE cable is not keyed with a connector tab, align the colored edge of the cable with the pin 1 side of the drive connector. Connects to System Board IDE Port Connects to IDE...

  • Page 76: Device Cabling

    3-20 Option Installation Device Cabling All storage devices require a power and signal cable connection. Devices shipped with the system are already connected. Cable optional devices as follows. Cabling an IDE Device Connect the IDE signal cable connector to the connector on the IDE device. Take care to prevent bending drive connector pins.

  • Page 77: Storage Device Installation

    Option Installation 3-21 Diskette Drive Signal Cable Connector Red Edge Power Cable Figure 3-19 Connecting 1.2-MB Diskette Drive Cables Storage Device Installation The following subsections describe how to install 3 1/2-inch and 5 1/4-inch drives. The installation procedures include: removing the 3 1/2-inch drive bracket installing a 3 1/2-inch drive removing the front panel installing a 5 1/4-inch device...

  • Page 78: Installing The 3 1/2-Inch Drive

    3-22 Option Installation Power Supply Screw Tabs 3 1/2-Inch Drive Bracket Figure 3-20 Removing the 3 1/2-Inch Drive Bracket Installing the 3 1/2-Inch Drive Install a hard disk drive into the drive bracket as follows. Remove the system unit cover as previously described. Remove the 3 1/2-inch drive bracket from the system unit (see “Removing the 3 1/2-Inch Drive Bracket”).

  • Page 79: Removing The Front Panel

    Option Installation 3-23 Figure 3-21 Securing a 3 1/2-Inch Drive Connect the drive cables. Replace the 3 1/2-inch drive bracket (see “Replacing the 3 1/2-Inch Drive Bracket”). Removing the Front Panel Remove the front panel only if installing a 5 1/4-inch device. The front panel does not need to be removed if installing a 3 1/2-inch hard disk drive.
  • Page 80 3-24 Option Installation Blank Panel Front Panel Tabs (behind front panel) Tabs (behind front panel) Figure 3-22 Removing the Front Panel Identify the bay for the device being installed. Remove the blank panel from the selected bay by pressing the panel tabs from inside the front panel and pushing the blank panel out (see Figure 3-23).

  • Page 81: Installing The 5 1/4-Inch Device

    Option Installation 3-25 Install the device (see “Installing the 5 1/4-Inch Device”). Installing the 5 1/4-Inch Device Install an accessible device into the device cage as follows. Remove the 3 1/2-inch drive bracket from the system unit (see “Removing the 3 1/2-Inch Drive Bracket”).

  • Page 82: Replacing The Front Panel

    3-26 Option Installation Secure the device to the cage with the four screws, two to a side, that come with the device (see Figure 3-24). Two of Four Screws Figure 3-24 Securing the Device Replace the drive bracket (see “Replacing the 3 1/2-Inch Drive Bracket”). Replacing the Front Panel Replace the front panel as follows.

  • Page 83: Replacing The 3 1/2-Inch Drive Bracket

    Option Installation 3-27 Blank Panel Front Panel Tabs (behind Tabs (behind front panel) Figure 3-25 Aligning the Front Panel Continue to Step 5 in “Replacing the 3 1/2-Inch Drive Bracket.” Replacing the 3 1/2-Inch Drive Bracket When replacing the 3 1/2-inch drive bracket, take care to prevent pulling and loosening the cable connections.

  • Page 84: Adding External Options

    3-28 Option Installation Use the previously removed bracket screw to secure the bracket in place (see Figure 3-26). Screw Tabs 3 1/2-Inch Drive Bracket Figure 3-26 Securing the 3 1/2-Inch Drive Bracket Replace the front panel (see “Replacing the Front Panel”). Replace the system unit cover.

  • Page 85: Parallel Printer

    Option Installation 3-29 Parallel Printer NOTE: Before connecting a printer to the system, be sure the printer is set up correctly. Follow the setup instructions that come with the printer. Connect a parallel printer to the system as follows. Turn off power to the system and printer. Connect the printer cable to the printer port on the rear of the system unit (see Figure 3-27).

  • Page 86: Rs-232C Device Connection

    3-30 Option Installation RS-232C Device Connection NOTE: Before connecting a serial device to the system, be sure the serial device is set up correctly. Follow the setup instructions that come with the option. Turn off power to the system and to the serial device. Connect one end of the serial cable to one of the two serial ports on the rear of the computer (see Figure 3-28).

  • Page 87: Section 4 Maintenance And Troubleshooting

    Maintenance and Troubleshooting This section provides information on maintaining and troubleshooting the PowerMate Ve Series computers. Also included in this section are NEC service telephone numbers, (Table 4-1), online information access, and procedures for replacing the CMOS battery. Table 4-1 NEC Service and Information Telephone Numbers...

  • Page 88: Nec's Fastfacts Service

    Maintenance and Troubleshooting NEC’s FastFacts Service NEC’s FastFacts service is a self-help, automated electronic information service for obtaining up-to-date product application notes, installation procedures, troubleshooting tips, data sheets, technical information bulletins, illustrated parts lists, part numbers, and other information about your system.

  • Page 89: Nec Bulletin Board Service

    NEC Bulletin Board Service If you have access to a modem, the NEC Bulletin Board Service (BBS) can be used to provide you with the latest information on hardware and software. The BBS allows you to download files (video drivers, printer drivers, BIOS updates, etc.) for system enhancements...
  • Page 90 Maintenance and Troubleshooting NOTE: The first time that you use the BBS, you will be requested to provide information for a new user. Press twice Enter Enter your first name, last name, and password. Press after each. Enter Follow the screen prompts until the NECTECH Main Menu is displayed. At the Main Menu, select to join a conference.

  • Page 91: America Online Service

    If you subscribe to America Online, you can use the service to obtain information about NEC and its products. You can use America Online to E-mail technical questions to NEC’s Technical Support staff, post technical questions and messages on the Message Board, and access the NEC Software Library to download files.

  • Page 92: Internet

    Maintenance and Troubleshooting Internet If you have a modem, you can access NEC’s Home Page on the Internet World Wide Web. You can do this through a commercial online service or through your Internet account. NEC’s Home Page contains general information about NEC products.

  • Page 93: Keyboard Cleaning

    Maintenance and Troubleshooting Local distributors and dealers may sell diskette drive head cleaning kits. These kits contain special diskettes and cleaning solution. Do not use the abrasive head cleaning kits (kits without cleaning solution). Insert the diskette immediately after powering on the system, before the disk boot-up. Allow the diskette drive heads to clean for about 30 seconds.
  • Page 94 Maintenance and Troubleshooting Figure 4-1 Mouse Ball Cover Rotate the ball cover clockwise and remove the cover. Turn the mouse over so that the cover and ball fall into your palm. Gently push the ball out of the large opening in the side of the ball cover. Clean the mouse as follows.

  • Page 95: Troubleshooting

    Maintenance and Troubleshooting TROUBLESHOOTING This subsection provides information that helps isolate and repair system malfunctions at the field level. Step-by-step instructions for diagnosing and solving system hardware problems are provided. If disassembly is required, see Section 5. Connector pin assignments are given in Appendix A.
  • Page 96 4-10 Maintenance and Troubleshooting Table 4-2 Problems and Solutions Problem Symptom Solution Operating system Intermittent beeping at 1. Check system configuration and does not boot power-on. Computer beeps jumper settings (refer to Appendix B). more than once and is unable to complete boot-up.
  • Page 97 Maintenance and Troubleshooting 4-11 Table 4-2 Problems and Solutions Problem Symptom Solution Hard disk Cannot access hard disk. 1. Check signal/power connections malfunction (cont’d) between hard disk, PCB, power supply. 2. Check drive jumper settings. 3. Check power supply. 4. Check hard disk cable and hard disk. Replace as necessary.
  • Page 98 4-12 Maintenance and Troubleshooting Table 4-2 Problems and Solutions Problem Symptom Solution Monitor Wavy display. 1. Check that the computer and monitor malfunction are not near motors or electric fields. (cont’d) Blank display. 1. Press any key or move mouse to ensure power management has not blanked the display.

  • Page 99: Cmos Battery Replacement

    Maintenance and Troubleshooting 4-13 Table 4-2 Problems and Solutions Problem Symptom Solution CD-ROM No sound from CDs. 1. Check that speaker power is on and Malfunction volume is adjusted. (cont’d) 2. Check audio software settings. 3. Check CD audio cable. Replace as necessary.
  • Page 100 4-14 Maintenance and Troubleshooting Locate the battery socket on the system board. Battery Figure 4-2 Battery Socket Location Carefully lift the battery clip until there is enough space to slide the battery out of the socket. CAUTION: To maintain a tight battery contact with the socket, do not over-bend the battery clip.
  • Page 101 Maintenance and Troubleshooting 4-15 Remove the battery and discard in accordance with the manufacturer’s instructions or see the battery disposal instructions at the end of this manual. Carefully lift the clip on the battery socket. With the positive (+) side facing up, press the new battery into the socket. Replace the system unit cover.

  • Page 102: Disassembly And Reassembly

    Section 5 System Unit Repair DISASSEMBLY AND REASSEMBLY This section contains step-by-step disassembly procedures. The hard disk drive, and 3 1/2- inch diskette drive are installed and included in these disassembly procedures. Reassembly is the reverse of disassembly. Each procedure is supported by a simplified disassembly illus- tration to facilitate removal.

  • Page 103: System Unit Cover Removal

    System Unit Repair When disassembling the system unit, follow these general rules. Disconnect all peripherals. When handling boards or chips, touch the system unit frame to discharge static. Do not disassemble parts other than those specified in the procedure. All screws are Phillips-head, unless otherwise specified. Label all removed connectors.

  • Page 104: Expansion Board Removal

    System Unit Repair Remove the two cover screws shown in Figure 5-1. Screws Figure 5-1 System Unit Cover Screws Slide the system unit cover toward the front about one inch. Lift the system unit cover up and off (see Figure 5-2). Figure 5-2 Removing the System Unit Cover Expansion Board Removal Remove any installed expansion board(s) using Figure 5-3 through Figure 5-4 and the fol-...
  • Page 105 System Unit Repair To remove a board on the inside of the PCI/ISA backboard, remove the two slot cover support screws shown in Figure 5-4. The slot cover support secures the ex- pansion board in place. Expansion Board ISA/PCI-Bus Backboard Screw Figure 5-3 Expansion Slot Screw Expansion Board...

  • Page 106: Pci/Isa Backboard Removal

    System Unit Repair PCI/ISA Backboard Removal Remove the PCI/ISA backboard from the system unit as follows. Remove the system unit cover and all expansion slot boards as previously de- scribed. Remove the two screws that secure the backboard to the support bracket (see Figure 5-5).
  • Page 107 System Unit Repair NOTE: When reinstalling the drives, note that all power cables are keyed to fit only in the cor- rect position. Remove the 3 1/2-inch drive bracket screw (see Figure 5-6). Power Supply Screw Tabs 3 1/2-Inch Drive Bracket Figure 5-6 3 1/2-Inch Drive Bracket Remove the four 3 1/2-inch diskette drive screws;...

  • Page 108: Front Panel Assembly Removal

    System Unit Repair Front Panel Assembly Removal Remove the front panel assembly from the system unit as follows. Remove the system unit cover and 3 1/2-inch drive bracket as previously de- scribed. Unplug the following cables from their connectors (see Figure 5-8). Power lamp (connector J6) Hard disk drive busy lamp (connector J30) Reset button (connector J25)

  • Page 109: Blank Panel Removal

    System Unit Repair Blank Panel Removal Remove the blank panels from the front panel as follows. Remove the system unit cover and front panel as previously described. Remove the blank panel from the selected slot by pressing the panel tabs from in- side the front panel and pushing the blank panel out (see Figure 5-9).

  • Page 110: Removing The Secondary Cache

    System Unit Repair Slide the speaker out from the tabs on the device cage (see Figure 5-10). Speaker Cable to System Board Speaker Figure 5-10 Internal Speaker Removing the Secondary Cache The system comes with 256 KB synchronous pipeline burst secondary SRAM cache in- stalled in the cache socket on the system board.

  • Page 111: 1/4-Inch Device Removal

    5-10 System Unit Repair Remove the SIMM stick from the system board. Repeat step 2 for each SIMM to be removed. NOTE: If more information is needed, see the installation instructions in Section 3, Options. Clips Figure 5-11 SIMM Socket 5 1/4-Inch Device Removal Remove an 5 1/4-inch device from the 5 1/4-inch device cage per Figure 5-12, and the fol- lowing steps.

  • Page 112: Power Supply Removal

    System Unit Repair 5-11 Remove the device out of the 5 1/4-inch device cage from the front of the system unit. NOTE: When reinstalling the 5 1/4-inch device, note that all power cables are keyed to fit only in the correct position. Power and Signal Cables (not shown) Two of Four...

  • Page 113: Power Button Screws

    5-12 System Unit Repair Remove the two screws securing the power button to the front of the system unit (see Figure 5-13). Power Button Screws Figure 5-13 Power Button Screws Remove the four screws holding the power supply to the system unit (see Figure 5-14).

  • Page 114: System Board Removal

    System Unit Repair 5-13 System Board Removal Remove the system board per Figure 5-15 and the following steps. Remove the following components as previously described. system unit cover expansion slot boards PCI/ISA backboard 3 1/2-inch drive bracket secondary cache module installed on the system board SIMMs installed on the system board NOTE: Remove the optional video DRAM chips if installed, see Section 3, Options.

  • Page 115: Illustrated Parts Breakdown

    5-14 System Unit Repair Illustrated Parts Breakdown This subsection contains the illustrated parts breakdown (IPB) and NEC part numbers for the PowerMate Ve computer. Table 5-2 lists the field-replaceable parts for the computer. Figure 5-16 is the illustrated parts breakdown.
  • Page 116 System Unit Repair 5-15 Table 5-2 PowerMate Ve Field-Replaceable Parts List* Item Description Part Number 100 MHz Pentium Processor 158-082502-008 133 MHz Pentium Processor 158-082502-016 Power Supply 200 Watt 158-050684-000 8 Watt Speakers 158-050980-000 8X IDE CD-ROM Reader CDR-1450A/BR System Board, w/o CPU, w/o Audio 158-056404-000 System Board, w/o CPU, with Audio 158-056403-000...
  • Page 117 5-16 System Unit Repair Table 5-4 lists the options for PowerMate Ve. Table 5-4 Optional Replacement Parts Item Description Part Number 1 MB Video Upgrade Kit (256K x 16) DRAM 158-082270-060 (includes 2) 4 MB EDO SIMM (1 MB x 32), 60 ns 158-082629-060 8 MB EDO SIMM (2 MB x 32), 60 ns 158-082630-060...

  • Page 118: Powermate Ve Illustrated Parts Breakdown

    System Unit Repair 5-17 Figure 5-16 PowerMate Ve Illustrated Parts Breakdown* ____________ * This data was revised August 1996. For an up-to-date listing of spare parts, please call FastFacts (800) 366-0476 and order document number 42181528.

  • Page 119: Appendix A Connector Pin Assignments

    Appendix A Connector Pin Assignments This appendix describes the system board connector pin assignments. Figure A-1 shows the locations of the system board connectors. Table A-1 identifies the connector function with the connector number. Descriptions of the connectors are provided in the following subsections.
  • Page 120 Connector Pin Assignments Table A-1 System Board Connectors Function Connector Number Type VGA Monitor 15 pin female sub D-shell Microphone In 1/8-Inch banana connector Speaker In 1/8-Inch banana connector Line In 1/8-Inch banana connector Line Out 1/8-Inch banana connector Parallel Interface 25 pin female sub D-shell Serial Interface COM1/COM2 J9, J10...

  • Page 121: Serial Interface Connectors

    Connector Pin Assignments SERIAL INTERFACE CONNECTORS Serial interface signals are output from the system board through two 9-pin COM port connectors. The 9-pin, D-subconnectors are located at the rear of the system unit. Pin locations and pin assignments for the serial interface connectors are shown in Table A-2. Table A-2 RS-232C Serial Port Connector Pin Assignments Signal Carrier detect...

  • Page 122: Parallel Interface Connector

    Connector Pin Assignments PARALLEL INTERFACE CONNECTOR The system has a 25-pin parallel port on the system board. Parallel interface specifications for this port conform to the IBM-PC interface. Pin locations and pin assignments for the parallel interface connector are shown in Table A-3. Table A-3 Parallel Printer Port Connector Pin Assignments Signal Strobe...

  • Page 123: Vga Interface Connector Pin Assignments

    Connector Pin Assignments VGA INTERFACE CONNECTOR PIN ASSIGNMENTS Video signals are output from the system board through a VGA interface connector, which is a 15-pin, D-subconnector (VESA VS890803-2) located at the rear of the system unit. Table A-4 shows the connector pin locations and pin assignments. Table A-4 VGA Interface Connector Pin Assignments Signal Green...

  • Page 124: Power Supply Connector

    Connector Pin Assignments POWER SUPPLY CONNECTOR Voltages from the power supply are input to the system board through the power supply connector. Figure A-2 Power Supply Connector Pin Assignments shows the connector pin locations and pin assignments. Power Good Signal Figure A-2 Power Supply Connector Pin Assignments KEYBOARD AND MOUSE CONNECTORS The keyboard and mouse use standard PS/2 connectors.

  • Page 125: Fan Connector

    Connector Pin Assignments FAN CONNECTOR Fan connector pin assignments are given in Table A-8.. The connector plugs into one of the power supply cable connectors. Table A-8 Fan Connector Pin Assignments Signal Ground +12V (fused) Ground DISKETTE DRIVE INTERFACE PIN ASSIGNMENTS Table A-9 provides the pin assignments for the diskette drive interface.

  • Page 126: Ide Interface Connectors

    Connector Pin Assignments IDE INTERFACE CONNECTORS All signal levels in the IDE interface are TTL compatible. A logic 1 is a signal whose voltage level is between 2.0 and 5.0 V. A logic 0 is a signal measuring between 0.00 V and 0.70 V.

  • Page 127: Simm Sockets

    Connector Pin Assignments SIMM SOCKETS Table A-11 provides the SIMM socket pin assignments. Table A-11 SIMM Socket Pin Assignments Signal Signal Signal RAS2 CAS0* CAS2* CAS3* CAS1* PD0 (N/C) RAS0 PD1 (N/C) PD2 N/C PD3 N/C...

  • Page 128: Isa/Pci-Bus Backboard Connector Pin Assignments

    A-10 Connector Pin Assignments ISA/PCI-BUS BACKBOARD CONNECTOR PIN ASSIGNMENTS Table A-12 provides the pin assignments for the ISA/PCI-bus backboard connector on the system board. Table A-12 ISA/PCI-Bus Backboard Connector Pin Assignments Signal Signal Signal Signal IOCHCK SD07 RSET DRV SD06 PCIINT1 PCIINT3 SD05...
  • Page 129 Connector Pin Assignments A-11 Table A-12 ISA/PCI-Bus Backboard Connector Pin Assignments Signal Signal Signal Signal SA03 BALE FRAME IRDY SA02 CBE2 DEVSEL SA01 TRDY PLOCK SA00 STOP PERR SBHE MEMCS16 SDONE SERR LAB23 I/OCS16 AD15 LAB22 IRQ10 CBE1 AD14 LAB21 IRQ11 AD12 LAB20...

  • Page 130: Isa Expansion Bus Connector Pin Assignments

    A-12 Connector Pin Assignments ISA EXPANSION BUS CONNECTOR PIN ASSIGNMENTS The expansion slots signals, voltages, and grounds are supplied through the bus connectors. There are no active components on the ISA/PCI-bus backboard. Table A-13 provides the pin assignments for the ISA expansion slots. Table A-13 ISA Expansion Slot Pin Assignments Direction Signal...
  • Page 131 Connector Pin Assignments A-13 Table A-13 ISA Expansion Slot Pin Assignments Direction Signal Direction Signal Input/Output SA04 Output Input/Output SA03 Output BALE Input/Output SA02 Power Input/Output SA01 Output Input/Output SA00 Ground Input/Output SBHE Input MEMCS16 Input/Output LAB23 Input I/OCS16 Input/Output LAB22 Input IRQ10...

  • Page 132: Cd Audio In Connector Pin Assignments

    A-14 Connector Pin Assignments CD AUDIO IN CONNECTOR PIN ASSIGNMENTS The pin assignments for the CD audio-in connector are provided in Table A-14. Table A-14 CD Audio In Connector Signal Speaker Data...

  • Page 133: Appendix B System Board Jumpers

    Appendix B System Board Jumpers This appendix provides jumper setting information for configuring the system for a particular system requirement. Situations that require changing the jumper settings include the following: upgrading the processor clearing a password CAUTION: Jumpers are set correctly at the factory for the shipped configuration.

  • Page 134: Changing Processor Jumper Settings

    System Board Jumpers CHANGING PROCESSOR JUMPER SETTINGS Use the following procedure when replacing the installed processor with a faster speed processor. Jumpers requiring setting changes include the Processor/Bus Speed. Turn off and unplug the system and any connected external options. WARNING: System power must be off before removing the cover and changing a jumper setting.

  • Page 135: Checking The Cache Jumper

    System Board Jumpers Processor/Bus Speed 75-MHz Processor/ 50-MHz Bus Speed 90-MHz Processor/ 50-MHz Bus Speed 100-MHz Processor/ 66-MHz Bus Speed 120-MHz Processor/ 60-MHz Bus Speed 133-MHz Processor/ 66-MHz Bus Speed 150-MHz Processor/ 60-MHz Bus Speed 166-MHz Processor/ 66-MHz Bus Speed 1-2 VRE 2-3 VR Figure B-2 Processor Upgrade Jumpers...

  • Page 136: Changing The Password

    System Board Jumpers Locate the L2 SRAM Cache jumper on the system board (see Figure B-1). Set the L2 SRAM Cache jumper on pins 1 2 for an asynchronous cache module or on pins 2 3 for a synchronous pipeline burst cache module. SRAM cache 1-2 Asynchronous 2-3 Synchronous...
  • Page 137 System Board Jumpers Reinstall the system cover. Connect system power cables and external options. Turn on the system. The system boots up and clears the password. Turn off the system and unplug the system and any connected peripherals. Remove the system cover. Remove the jumper from the Password Clear jumper block.

  • Page 138: Appendix C Hard Disk Drive Specifications And Jumper Settings

    (See Section 2, Setup and Operation, for information on auto setup using the Autotype Fixed Disk parameter.) NEC part numbers for the hard drives are provided in Section 5, System Unit Repair. 1.2-GB HARD DISK DRIVE SPECIFICATIONS AND JUMPER SETTINGS Specifications for the 3 1/2 inch IDE hard disk drive are given in Table C-1.
  • Page 139 Hard Disk Drive Specifications and Jumper Settings Table C-1 Specifications for 1.2-GB Hard Disk Drive Features Western Digital WDAC21200 1.2-GB Hard Disk Drive Performance Track-to-track seek 3.0 ms Average seek 14 ms Maximum seek 26 ms Average Latency 8.3 ms Rotation Speed 3600 rpm Data Transfer Rate...

  • Page 140: Appendix D Cd-Rom Reader Specifications And Jumper Settings

    An audio cable connects the reader to the sound system. The reader is assigned as drive E. See Section 2 for information on the CD-ROM reader’s controls and indicators. NEC part numbers are provided in Section 5. CD-ROM READER SPECIFICATIONS Table D-1 lists the specifications for the eight-speed CD-ROM reader.

  • Page 141: Cd-Rom Reader Connectors And Jumper Settings

    CD-ROM Reader Specifications and Jumper Settings Table D-1 Specifications for Eight-Speed CD-ROM Reader Feature Specification General Specifications Interface Capacity 656 MB, Mode 1 748 MB, Mode 2 Disc Loading Motorized Front Loading (power tray with holder) MTBF (power-on hours) 70, 000 hours (10% duty cycle) MTTR 30 minutes Weight...
  • Page 142 CD-ROM Reader Specifications and Jumper Settings Jumper B Jumper A (Cable Select/Master/Slave) Audio Connector IDE Connector Power Connector Figure D-1 CD-ROM Connector and Jumper Locations To the left of the standard 40-pin IDE connector on the back of the CD-ROM reader are two 6-pin jumper blocks (jumper A and jumper B).
  • Page 143 CD-ROM Reader Specifications and Jumper Settings Table D-3 Jumper B Settings Setting Signal Disabled (unshorted) CSEL (cable select) Disabled (unshorted) SL (slave) Enabled (shorted) Master (default setting)
  • Page 144 NEC bulletin board service, 4-3 parallel interface, A-4 NEC's FastFacts, 4-2 power supply, A-6 NEC's ftp site, 4-6 serial interface, A-3 NEC's World Wide Web home page, SIMM socket, A-9 speaker, A-5 World Wide Web, 4-6 suspend button, A-6 Integrated Audio, 1-15...
  • Page 145 2-17 speakers, 1-16 supervisor password, 2-17 Multimedia connections, 2-3 Serial interface, 1-13 specifications, 1-14 Setup, 2-1 NEC bulletin board service, 4-3 connections, 2-2 NEC's FastFacts, 4-2 main menu parameters, 2-10 Numlock, 2-14 voltage selector switch, 2-1 Setup and Operation, 2-1...
  • Page 146 numlock, 2-14 parameters, 2-6 Video memory, 1-11 power menu, 2-18 Video Resolutions, 1-11 security menu, 2-17 Video upgrade, 3-12 startup, 2-6 Voltage selector switch, 2-1 using, 2-7 SIMM installation, 3-11 upgrade, 3-9 SIMMs, 1-8 Sound board audio connector, A-14 Speakers, 1-16 Specifications, 1-21 CD-ROM reader, D-1 Storage device installation, 3-16...
  • Page 147 (For United States Use Only) FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT WARNING: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
  • Page 148 BATTERY REPLACEMENT A lithium battery in your computer maintains system configuration information. In the event that the battery fails to maintain system configuration information, NEC recommends that you replace the battery. See Chapter 4 for battery replacement information. WARNING: There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer.

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