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NEC POWERMATE P - SERVICE MANUAL 1996 Service And Reference Manual

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NEC
PowerMate P
Service and Reference Manual
Printed in U.S.A 4/96
819-181410-000 Rev. 00

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Summary of Contents for NEC POWERMATE P - SERVICE MANUAL 1996

  • Page 1 PowerMate P Service and Reference Manual Printed in U.S.A 4/96 819-181410-000 Rev. 00...
  • Page 2 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 3: Table Of Contents

    Contents Section 1 Technical Information Minitower System Chassis ................... 1-1 System Board ......................1-2 Processor......................1-5 Secondary Cache ....................1-5 System and Video BIOS ..................1-6 Power Management ....................1-7 I/O Addressing ..................... 1-7 System Memory....................1-9 Interrupt Controller ....................1-10 Graphics Subsystem....................
  • Page 4 Boot Menu ......................2-25 Exit Menu......................2-26 Save Changes & Exit ..................2-26 Discard Changes & Exit................. 2-26 Get Default Values ..................2-27 Load Previous Values ..................2-27 Save Changes ....................2-27 BIOS Update Utility ....................2-27 NEC Bulletin Board Service ................. 2-28...
  • Page 5 Contents Using the BIOS Update Utility................2-29 Section 3 Option Installation General Rules For Installing Options................3-1 Precautions........................3-1 Removing the System Unit Cover ................3-2 Expansion Boards......................3-5 Expansion Slot Locations ..................3-5 Expansion Board Installation ................3-6 Expansion Board Removal................3-8 Simm Upgrade......................
  • Page 6 Contents Section 4 Maintenance and Troubleshooting Maintenance ........................ 4-1 System Cleaning ....................4-2 Keyboard Cleaning ....................4-2 Mouse Cleaning....................4-3 Troubleshooting ......................4-4 Error Messages..................... 4-4 Diagnosing and Solving Problems ................. 4-6 Beep Codes ......................4-10 Section 5 Repair Disassembly and Reassembly ..................5-1 System Unit Cover Removal .................
  • Page 7 Contents Suspend Button Connector ..................A-8 Fan Connector......................A-9 Diskette Drive Interface Pin Assignments..............A-9 IDE Interface Connectors .................... A-10 SIMM Sockets ......................A-11 ISA/PCI-Bus Backboard Connector Pin Assignments ..........A-12 ISA Expansion Bus Connector Pin Assignments ............A-14 CD Audio In Connector Pin Assignments ..............A-16 Appendix B System Board Jumpers Jumper Locations ......................
  • Page 8 viii Contents Connecting the AC adapter................2-5 Inserting the Microphone Holder into the Stand..........2-6 Inserting the Microphone into the Holder ............2-7 Removing Cover Screws ................... 3-3 Releasing the Cover................... 3-4 Locating Expansion Slots .................. 3-5 Removing a Slot Cover..................3-6 Inserting the Board....................
  • Page 9 Contents Removing the Screw..................5-4 System Board Upgrade SIMM Sockets ............. 5-5 Removing a SIMM.................... 5-5 Removing the Front Panel ................. 5-6 Locating the Blank Panel Tabs................5-7 Locating and Removing the Slot Covers ............5-8 Left Side Front Internal Drive Bracket Screws........... 5-9 5-10 Removing the Card Guide/Fan Bracket Assembly ..........
  • Page 10 Integrated Peripherals Parameters..............2-22 System Security Options..................2-23 2-10 Power Management Parameters................. 2-25 Recommended Memory Upgrade Path............... 3-11 NEC Service and Information Telephone Numbers ..........4-1 PowerMate P System Error Messages ............... 4-4 ISA NMI Error Messages.................. 4-6 Problems and Solutions ..................4-6 Diagnostic Beep Codes..................
  • Page 11 Contents A-12 SIMM Socket Pin Assignments ................. A-11 A-13 ISA/PCI-Bus Backboard Connector Pin Assignments ........A-12 A-14 ISA Expansion Slot Pin Assignments..............A-14 A-15 CD Audio In Connector ..................A-16 Hard Disk Drive Specifications................C-1 1.6-GB Hard Disk Jumper Settings..............C-2 2-GB Hard Disk Master/Slave Select Jumper Settings ........
  • Page 12 Preface This service and reference manual for the NEC PowerMate P series of minitower computer systems contains hardware and interface information for users who need an overview of system design. The manual also includes system setup information, procedures for installing options, and illustrated parts lists.
  • Page 13 Abbreviations ampere Enhanced Graphics Adapter alternating current EPROM erasable and programmable advanced technology (IBM PC) Fahrenheit Bulletin Board System facsimile transmission binary-coded decimal Federal Communications BIOS Customized Utility Commission BIOS basic input/output system frame ground binary digit frequency modulation BIOS Upgrade Utility field-replaceable unit bits per inch gigabyte...
  • Page 14 Abbreviations milliamps slave maximum SCSI Small Computer System Interface megabyte signal ground modified frequency modulation SIMM single inline memory module megahertz SVGA Super Video Graphics Array millimeter switch millisecond Technical Support Center most-significant bit transistor/transistor logic NASC National Authorized Service Center tracks per inch not connected...

  • Page 15: Section 1 Technical Information

    Section 1 Technical Information The PowerMate P Series Pentium system includes the following configurations: PowerMate P150 and P166 hard disk systems (diskette drive, hard disk) PowerMate P150 and P166 multimedia systems (diskette drive, hard disk, six-speed CD-ROM reader, multimedia components). All systems come standard with an Intel Pentium™...

  • Page 16: System Board

    Technical Information Figure 1-1 System Controls and Storage Device Slots SYSTEM BOARD Key features of the system board include the following: Intel Pentium 150-or 166-MHz Pentium processor, depending on system configuration 16-KB internal dual write-back cache integrated on the processor 15 nanosecond (ns), 256-KB synchronous, pipeline burst, write-back, secondary cache memory Intel 82430FX PCI/ISA (Triton) chipset...
  • Page 17 Technical Information graphics subsystem standard 2-MB video WRAM on video board, expandable using optional upgrade modules Peripheral Component Interconnect (PCI) Matrox MGA Millennium™ graphical user interface (GUI) accelerator and motion video playback controller standard 2-MB video WRAM supports resolutions of 640 x 480 with up to 256/65K/16.7 million colors, 1024 x 768 with up to 256/65K colors, 1280 x 1024 with up to 256 colors, and 1152 by 882 with up to 256/65K colors integrated sound (multimedia configurations only)

  • Page 18: System Board Chips

    Technical Information I/O panel contains external connectors for connecting the following external devices: VGA-compatible monitor (standard, super, high-resolution VGA) ® personal system/2 (PS/2 )-style mouse Windows 95, 104-key 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 multimedia speakers, microphone, and headphone connectors (multimedia...

  • Page 19: Processor

    Technical Information Processor The PowerMate P series of computers use the following Pentium processors: PowerMate P150 — 150-MHz processor with an internal speed of 150 MHz and an external speed of 60 MHz. PowerMate P166 — 166-MHz processor with an internal speed of 160 MHz and an external speed of 66 MHz Each processor has 16 KB of write-back primary cache and a math coprocessor.

  • Page 20: System And Video Bios

    Technical Information Non-cacheable portions of memory are defined by software (see the following subsection for a system memory map). The system does not cache the following regions: video text memory block from A0000 to BFFFF PCI memory space on top of main memory to 4 GB any access to the PCI or AT bus The cache can be cleared by software instructions.

  • Page 21: Power Management

    Technical Information Table 1-2 System Memory Map Memory Space Size Function 00080000-0009FFFF 128 KB 640 KB Optional memory space gap (DOS applications) 00000000-0007FFFF 512 KB 512 KB DOS applications (no read/write protect; always cacheable) Power Management Each system incorporates power management features that lower power consumption when there is no activity detected from the keyboard, mouse, diskette drive, CD-ROM reader, or hard disk drive after a pre-defined period of time.

  • Page 22: I/O Address Map

    Technical Information Table 1-3 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 command/status byte 0070-007F Real-time clock, NMI mask...

  • Page 23: System Memory

    Technical Information Table 1-3 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 3F8-3FF Serial port 1 CF8-CFF PCI configuration space System Memory All systems come standard with 16 MB of EDO memory: 640 KB of base memory and 15 MB of extended memory.

  • Page 24: Interrupt Controller

    1-10 Technical Information Table 1-4 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 25: Graphics Subsystem

    Technical Information 1-11 Table 1-5 Interrupt Level Assignments Interrupt Priority Interrupt Device IRQ00 Counter/Timer IRQ01 Keyboard IRQ02 Cascade (INT output from slave) IRQ03 COM2 and COM4 IRQ04 COM1 and COM3 IRQ05 Parallel Port 2/Audio (if present) IRQ06 Diskette Drive Controller IRQ07 Parallel Port 1 IRQ08...

  • Page 26: Graphics Accelerator

    1-12 Technical Information 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 27: Isa Bus

    Technical Information 1-13 With 4 MB or 8 MB of video WRAM, the system supports the following additional resolutions, colors, and refresh rates: 1600 by 1200 pixels, 256/16.5K colors, vertical refresh rate of 60-78 Hz and a horizontal refresh rate of 76-96 Kz 1280 by 1024 pixels, 256/65K/16.7 million colors, vertical refresh rate of 60-110 Hz and a horizontal refresh rate of 63-107 Kz 1152 by 882 pixels, 256/16.5K/16.7 million colors, vertical refresh rate of 60-120...

  • Page 28: Pci/Ide Ports

    1-14 Technical Information PCI/IDE Ports The system board provides two high-performance PCI/IDE ports: a primary channel and a secondary channel. Each port supports up to two devices for a total of four IDE devices. The primary PCI/IDE port has an enhanced IDE interface which supports 11.1 MB per second 32-bit wide data transfers on the high-performance PCI local bus.

  • Page 29: Serial Interface

    Technical Information 1-15 Table 1-6 Parallel Port Addressing and Interrupts Starting I/O Address Interrupt Level Port IRQ05 LPT1 IRQ05 LPT1 or LPT2 IRQ05 LPT1 or LPT2 IRQ07 LPT1 IRQ07 LPT1 or LPT2 IRQ07 LPT1 or LPT2 Parallel interface signals are output through the system board's 25-pin, D-subconnector. The connector is located at the rear of the system unit.

  • Page 30: Infrared Interface

    1-16 Technical Information Note that the COM2 port is factory set for IrDA data transfer and must be reset to "Standard" for serial port transfers. See Section 2, Setup and Operation, for information on resetting the port through Setup. Serial interface specifications include: Baud rate up to 19.2 KB per second Word length - 5, 6, 7, or 8 bits Stop bit - 1, 1.5, or 2 bits...

  • Page 31: Hard Disk Drive

    Technical Information 1-17 HARD DISK DRIVE Up to four IDE hard drives are supported in the system. The system board has two IDE/PCI interface connectors (primary and secondary) for connecting various storage devices such as hard disk drives. Each connector supports up to two IDE devices. Hard disk systems ship with one internal 3 1/2-inch hard disk (1-inch high, thin-height) installed behind the front panel, at the bottom of the chassis.

  • Page 32: Mouse

    1-18 Technical Information MOUSE A PS/2-compatible mouse is standard equipment for the system. The mouse has a self- cleaning mechanism that prevents a buildup of dust or lint around the mouse ball and tracking mechanism. The mouse's six-pin connector plugs into the rear of the system. The mouse connector pin assignments are given in Appendix A.

  • Page 33: Speakers

    Technical Information 1-19 Speakers The multimedia systems come with 20 watt, high-quality stereo speaker set, an AC adapter, and connecting wires. The speaker set features a volume control, base and treble controls, power on/off switch, power lamp, and a headphone jack. Volume is controlled from the speaker or from the preinstalled sound system software provided with the Voyetra application program.

  • Page 34: Desktop Management Interface

    DMI is not a protocol but an interface that complements network protocols like the Simple Network Management Protocol (SNMP). DMI Components The NEC DMI consists of two major functional components: the Component Interface (CI) module Windows Management Information Format (MIF) Browser.

  • Page 35: Dmi Browser

    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 36: Usage

    Browser, it restores all the viewing screens to the last known position. Usage To start the NEC DMI Viewer, simply double click on the NEC DMI icon in the NEC Tools 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 37: Specifications

    Technical Information 1-23 SPECIFICATIONS System specifications are included in Table 1-8. Table 1-8 Specifications Item Specification Dimensions and Width: 8 inches (20.32 cm) Weight Depth: 16 inches (40.64 cm) Height: 14 inches (35.56 cm) Weight: 26 lb (11.78 kg) (dependent upon options) Keyboard Dimensions and Width: 19.0 inches (48.3 cm) Weight:...
  • Page 38 1-24 Technical Information Table 1-8 Specifications Item Specification Integrated Graphics Matrox MGA Millennium PCI GUI Accelerator and Motion Video Playback Controller PCI-Bus Video 2-MB video WRAM standard, expandable to 4 or 8 MB Maximum resolution 1600 x 1200 pixels Battery Real-time clock/battery module Power Supply 200 Watt, 115 V/230V switch selectable (minitower)
  • Page 39 Technical Information 1-25 Table 1-8 Specifications Item Specification Speakers (Mli™ 691H Hi-Fi Standard in multimedia systems Sound Monitor) Magnetically shielded 20-watt RMS power output Power on indicator, volume control, treble and base tone control Headphone jack AC adapter (120V to +15V, -15V) Built-in stereo amplifier 2-way speaker system 2-in.

  • Page 40: 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 41 Setup and Operation Figure Section 2-1 Voltage Selector Switch Connect the keyboard, mouse, monitor, and printer cables to the back of the system (see Figure Section 2-2). Figure Section 2-2 Peripheral Connections...
  • Page 42 Setup and Operation If installing a multimedia system, connect the speakers as follows. Locate the speaker with the control knobs. This is the right speaker. Identify the cables that came with your speakers (see Figure Section 2-3). The left speaker cable has a black connector on each end. The other cable is a Y- cable.
  • Page 43 Setup and Operation Figure Section 2-4 Connecting the left speaker cable Attach the Y-cable as follows (see Figure Section 2-5). Insert the red connector into the red jack marked "RIGHT LINE IN" on the back of the right speaker. Insert the white connector into the white jack marked "LEFT LINE IN" on the back of the right speaker.
  • Page 44 Setup and Operation Figure Section 2-5 Connecting the Y-cable Locate the AC adapter (see Figure Section 2-6). Plug the AC adapter into the jack marked "+15 DC" on the back of the right speaker. Plug the other end of the cable into a properly grounded wall outlet. Figure Section 2-6 Connecting the AC adapter...
  • Page 45 Setup and Operation To operate your speakers, turn on your system. Push the power button on the front of the right speaker. Turn on your audio source. Adjust the volume by turning the volume control on the front of the right speaker.
  • Page 46 Setup and Operation Figure Section 2-8 Inserting the microphone into the holder Adjust your microphone by pivoting it up and down and side to side (see Figure Section 2-9). Figure Section 2-9 Assembling the Microphone Holder Plug the microphone into the microphone in jack at the rear of the system (see Figure Section 2-10).
  • Page 47 Setup and Operation Figure Section 2-10 Connecting the Microphone...
  • Page 48 Setup and Operation Press the power button (see Figure Section 2-11) to power-on the system. The power lamp lights green, indicating that the system is in Full-Power mode. The system automatically goes into its Power-On-Self-Test (POST), and checks system components. One beep indicates that the system has successfully completed its power-on test.

  • Page 49: Cd-Rom Reader

    2-10 Setup and Operation Press the suspend button (see Figure Section 2-11) to place the unit in the power management mode. The power lamp lights amber, indicating that the system is in the power-saving Suspend mode. Pressing the Suspend button places the system back in the Full- Power mode.

  • Page 50: System Configuration

    Setup and Operation 2-11 To load a disc in the six-speed CD-ROM reader, follow these steps. Press the open/close/stop button. The CD tray opens. Put the CD, printed side up, into the tray. Press the open/close/stop button. The tray closes. To remove the disc, press the open/close/stop button.

  • Page 51: How To Start Setup

    2-12 Setup and Operation configure system connections for peripherals such as the diskette drive, hard drives, and devices connected to the printer and serial ports. customize the system with security features such as passwords, diskette drive restriction, virus check reminder, and system backup reminder. set system parameters if the real-time clock/battery chip is replaced.

  • Page 52: How To Use Setup

    Setup and Operation 2-13 How to Use Setup The Setup utility has a Main Menu window and six top-level menus with submenus. The Main Menu window contains the following areas: A title line the top line of the Main Menu. This line displays the Setup utility name and copyright message.

  • Page 53: Legend Bar

    2-14 Setup and Operation Security Use this menu to set User and Supervisor Passwords, diskette access, fixed disk boot sector, and the Backup and Virus-check reminders. Power Use this menu to configure Power Management features. Boot Use this menu to select the boot device (diskette drive, CD-ROM reader, or hard drive) Exit Exits the Setup utility with options to save or discard changes, load...

  • Page 54: Field Help Window

    Setup and Operation 2-15 Selecting a Menu Item To select a menu item, use the up or down arrow keys to move the cursor to the desired field. Use the tab key to cycle the cursor through the options. Then use the value keys (F5, - , F6, +, or space bar) to cycle through the value for that field.

  • Page 55: Ide Adapters

    2-16 Setup and Operation Table Section 2-2 Main Menu Parameters Parameter Options Description System Time HH:MM:SS Sets the system time. System Date MM/DD/YYYY Sets the system date. Diskette A: 360KB, 5 1/4” Selects the type of diskette drive in the system. Diskette B: 1.2MB, 5 1/4”...
  • Page 56 Setup and Operation 2-17 Jumper settings on the IDE device set the device to master or slave (see the documentation that comes with the device). Select the IDE Adapter option configuration directly from the Main Menu summary window. Available options include: IDE Adapter 0 Master IDE Adapter 0 Slave IDE Adapter 1 Master...
  • Page 57 2-18 Setup and Operation Table Section 2-3 IDE Hard Disk Parameters Parameter Options Description Autotype Fixed Disk Automatically detected Pressing Enter causes the system to attempt to by the system detect the hard disk type. If successful, Setup fills in the remaining fields on this menu. Type 1 to 39 Selecting 1 to 39 fills in all remaining fields with...

  • Page 58: Memory Cache

    Setup and Operation 2-19 Memory Cache For memory caching parameters, select "Memory Cache" directly from the Main Menu summary window. See Table Section 2-4 for a description of memory cache parameters. CAUTION: Incorrect settings can cause the system to malfunction. Table Section 2-4 Memory Cache Parameters Parameter Options...

  • Page 59: Numlock

    2-20 Setup and Operation Table Section 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 60: Advanced Menu

    Setup and Operation 2-21 Advanced Menu Accessing the Advanced menu might require a Supervisor password. See Table Section 2-7 for Advanced Menu parameters. CAUTION: Setting items in the Advanced menu to incorrect values can cause the system to malfunction. Table Section 2-7 Advanced Menu Parameters Parameter Options Description...
  • Page 61 2-22 Setup and Operation Use the legend keys to make the selections and exit to the Main Menu. Use Table Section 2-8 to configure the peripherals. Table Section 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 62: Security Menu

    Setup and Operation 2-23 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 63: Power Menu

    2-24 Setup and Operation Table Section 2-9 System Security Options Feature Options Description Password on boot Disabled (default) Enabled requires a password on boot (cold boot Enabled only, no password required for warm boot). Requires the prior setting of the Supervisor and/or User password.

  • Page 64: Boot Menu

    Setup and Operation 2-25 Table Section 2-10 Power Management Parameters Feature Options Description Enabled (default) Advanced power management (APM) allows APM-aware software to better manage power savings. Keyboard Wakeup Enabled (default)| Allows keyboard activity to wake up system. Disabled Mouse Wakeup Enabled (default) Allows mouse activity to wake up system.

  • Page 65: Exit Menu

    2-26 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 66: Save Changes

    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 67: Nec Bulletin Board Service

    BIOS Update utility. How to flash the BIOS with a flash diskette is described following the BBS access procedure. NEC Bulletin Board Service Log onto the BBS as follows. NOTE: First time users must answer a new user questionnaire.

  • Page 68: Using The Bios Update Utility

    Setup and Operation 2-29 After completing downloading of the file, log off the BBS as follows. Press Enter (to continue). Press (command for Goodbye/Hangup). Press Enter 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.

  • Page 69: 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 minitower covers are included in this section.

  • Page 70: Removing The System Unit Cover

    Option Installation Static electricity and improper installation procedures can damage computer components. Protect computer components by following these safety instructions. CAUTION: Electrostatic discharge can damage computer components. Discharge static electricity by touching a metal object before removing the system unit cover. Avoid carpets in cool, dry areas.
  • Page 71 Option Installation CAUTION: Electrostatic discharge can damage computer components. Discharge static electricity by touching a metal object before you remove the system unit cover. Remove the four cover screws from the rear of the system unit (see Figure Section 3-1). Figure Section 3-1 Removing Cover Screws From the rear of the system, grasp the sides and slide the cover about an inch away from the front panel (see Figure Section 3-2).
  • Page 72 Option Installation Figure Section 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 replacing the cover.

  • Page 73: Expansion Boards

    Option Installation EXPANSION BOARDS The computer supports ISA Plug and Play expansion boards. Plug and Play expansion boards allow installing a board in an expansion slot without changing the hardware settings. There are no system resource conflicts to resolve. Plug and Play automatically configures the board for the system.

  • Page 74: Expansion Board Installation

    Option Installation Expansion Board Installation Install expansion boards in the system as follows. Remove the system unit cover as previously described. Follow any preinstallation instructions that came with the expansion board (such as setting switches or jumpers on the board). Remove the screw securing an expansion slot cover and remove the cover (see Figure Section 3-4).
  • Page 75 Option Installation Press the board firmly into the expansion slot connector. Gently rock the board from side-to-side to seat it into the connector. Insert the screw removed earlier to secure the expansion board to the support bracket. Figure Section 3-5 Inserting the Board Attach any signal cables required by the expansion board.

  • Page 76: Expansion Board Removal

    Option Installation Expansion Board Removal Remove the system unit cover as previously described. Label and remove any cables connected to the board. NOTE: To remove a board from an inside slot in the desktop, see Inside Slot Expansion Board Removal. Remove the screw that secures the board to the support bracket (see Figure Section 3-6 Figure Section 3-6 Removing the Screw...

  • Page 77: Simm Upgrade

    Option Installation SIMM UPGRADE SIMM sticks are installed into SIMM sockets on the system board. The system board provides four SIMM sockets and supports up to 128 MB of high-speed memory. The system ships with two 8-MB EDO SIMMs already installed. The following 32-bit (non- parity) 60 ns or 70 ns SIMMs are supported: 1-MB by 32-bit (4-MB stick) 2-MB by 32-bit (8-MB stick)
  • Page 78 3-10 Option Installation Figure Section 3-7 System Board Upgrade SIMM Sockets...
  • Page 79 Option Installation 3-11 Table Section 3-1 Recommended Memory Upgrade Path Total SIMM SIMM Memory Socket 1 Socket 2 Socket 3 Socket 4 16 MB 4 MB 4 MB 4 MB 4 MB 16 MB* 8 MB 8 MB Empty Empty 24 MB 4 MB 4 MB...

  • Page 80: Simm Removal

    3-12 Option Installation 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 Section 3-7). 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 Section 3-8).

  • Page 81: Simm Installation

    Option Installation 3-13 SIMM Installation Install a SIMM as follows. Remove the system unit cover as previously described. Locate the SIMM sockets (see Figure Section 3-9). Remove any currently installed SIMMs that are not needed. CAUTION: Before installing a SIMM, reduce static discharge by touching the system's metal chassis.

  • Page 82: Video Upgrade

    3-14 Option Installation VIDEO UPGRADE Upgrade the video memory by adding the 2- or 6-MB video WRAM upgrade module to the video board as follows. Remove the system unit cover as previously described. Locate the video WRAM sockets (see Figure Section 3-10). If any expansion boards are obstructing your view of the sockets, remove the boards (see Expansion Board Removal).

  • Page 83: Processor Upgrade

    Option Installation 3-15 PROCESSOR UPGRADE The zero-insertion force (ZIF) socket accepts pin-grid-array (PGA) processors, such as the primary processor or an upgrade processor. CAUTION: Incorrect installation of the processor can damage the processor, system board, or both. Follow the installation instructions carefully.

  • Page 84: Processor Installation

    3-16 Option Installation Processor Installation Remove the processor currently in the system (see above). CAUTION: Before picking up the processor, reduce static discharge by touching the metal frame of the system unit. Align the notched corner of the processor with the alignment corner in the socket and insert the processor.

  • Page 85: Data Storage Devices

    Option Installation 3-17 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. Other storage devices might require the installation of a compatible controller board.

  • Page 86: Device Preparation

    3-18 Option Installation Figure Section 3-11 Locating Device Slots in the Minitower Device Preparation Before installing a storage device in the system, follow any preinstallation instructions that come with the device. For example, check the following: Diskette drive remove any termination on the optional diskette drive. See the documentation that comes with the drive.
  • Page 87 Option Installation 3-19 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 Section 3-12. Figure Section 3-12 System Board Cable Connectors...
  • Page 88 3-20 Option Installation Diskette Drive Signal Cable A three-connector diskette drive signal cable comes attached to the system board and to the standard 1.44-MB diskette drive. The installation of a second diskette drive in your system does not require the replacement of the existing diskette drive signal cable.
  • Page 89 Option Installation 3-21 IDE Signal Cables Hard disk systems come with a three-connector IDE interface cable attached to the primary IDE connector. Multimedia systems come with a second IDE cable connected to the CD- ROM reader and to the secondary IDE connector. Each IDE connector on the system board supports two IDE devices.

  • Page 90: System Power Cables

    3-22 Option Installation System Power Cables Power cables come from the power supply and are attached to the standard storage devices. System power cables vary in length and provide connector sizes to accommodate a variety of supported storage configurations. Power cable connectors are keyed to fit only in the correct position.

  • Page 91: Device Cabling

    Option Installation 3-23 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 92: Cabling A Diskette Drive

    3-24 Option Installation Cabling a Diskette Drive Connect the diskette drive signal cable connector to the signal connector on the diskette drive (see Figure Section 3-17). Locate an available power connector. Connect the power cable to the power connector on the device. Figure Section 3-17 Connecting 1.2-MB Diskette Drive Cables...

  • Page 93: Storage Device Installation

    Option Installation 3-25 Storage Device Installation The following subsections describe how to install 3 1/2-inch and 5 1/4-inch drives. The installation procedures include: installing a 3 1/2-inch drive in the internal front slot installing a 3 1/2-inch drive in the internal rear slot removing the front panel installing a 5 1/4-inch device replacing the front panel.

  • Page 94: Installing A 3 1/2-Inch Drive Into A Rear Slot

    3-26 Option Installation Installing a 3 1/2-Inch Drive into a Rear Slot Install a second 3 1/2-inch hard disk drive into the system as follows. NOTE: Adding a second hard disk to hard disk configurations requires the removal of the standard hard disk.
  • Page 95 Option Installation 3-27 Insert the second drive into the upper slot of the 3 1/2-inch drive bracket; repeat steps 6 and 7. Hook the bracket (with drive) on the two tabs on the inside rear of the system unit and secure the bracket with the two screws removed earlier (see Figure Section 3-20).

  • Page 96: Removing The Front Panel

    3-28 Option Installation 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. If installing a 3 1/2-inch hard disk drive, see Installing the 3 1/2-Inch Drive into the Front Slot or Installing the 3 1/2-Inch Drive into a Rear Slot.
  • Page 97 Option Installation 3-29 Identify the slot for the device being installed. Remove the blank panel from the selected slot by pressing the panel tabs from inside the front panel and pushing the blank panel out (see Figure Section 3-22). Figure Section 3-22 Locating the Blank Panel Tabs...
  • Page 98 3-30 Option Installation Remove the slot cover from the selected slot by removing the two slot cover screws on the front of the system (see Figure Section 3-23). Figure Section 3-23 Locating the Slot Cover Install the 5 1/4-inch device (see Installing the 5 1/4-Inch Device).

  • Page 99: Installing The 5 1/4-Inch Device

    Option Installation 3-31 Installing the 5 1/4-Inch Device Install an accessible device into the device cage as follows. Remove the front panel as previously described. Follow the preinstallation instructions that come with the device, such as setting jumpers and switches. NOTE: If the 5 1/4-inch device comes with drive rails, do not attach them.
  • Page 100 3-32 Option Installation Figure Section 3-24 Attaching the Device Rails Insert the device into the device slot from the front of the system unit, connector end first. Secure the device as follows: If installing the device into the top 5 1/4-inch slot, align the holes in the device with the holes in the device cage.
  • Page 101 Option Installation 3-33 Figure Section 3-25 Front and Left Side Device Screws Figure Section 3-26 Right Side Device Screws Connect the device cables. Replace the system unit front panel (see Replacing the Front Panel).

  • Page 102: Replacing The Front Panel

    3-34 Option Installation Replace the system unit cover. NOTE: If a 1.2-MB diskette drive was installed, remove the protective cardboard insert from the drive. Run the Setup program to set the new configuration. Replacing the Front Panel Replace the front panel only after it has been removed in a 5 1/4-inch device installation. Route the LED and IR cables on the front panel through the chassis to the system board, and connect the cables to the board.

  • Page 103: Adding External Options

    Option Installation 3-35 ADDING EXTERNAL OPTIONS This subsection includes installation procedures for the following external options:. parallel printer serial devices. Procedures for connecting the microphone and speakers are included in Section 2, Setup and Operation. Parallel Printer NOTE: Before connecting a printer to the system, be sure the printer is set up correctly.

  • Page 104: Rs-232C Device Connection

    3-36 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 Section 3-29).

  • Page 105: Section 4 Maintenance And Troubleshooting

    Maintenance and Troubleshooting This section provides information on maintaining and troubleshooting the PowerMate P comput- ers. Also included in this section are NEC service telephone numbers (see Table Section 4-1 ). Table Section 4-1 NEC Service and Information Telephone Numbers...

  • Page 106: Maintenance

    Maintenance and Troubleshooting MAINTENANCE This subsection contains general information for cleaning and checking the system, keyboard, and monitor. The system, keyboard, and monitor require cleaning and checking at least once a year, and more often if operating in a dusty environment. No other scheduled maintenance or lubrication is required.

  • Page 107: Keyboard Cleaning

    Maintenance and Troubleshooting Keyboard Cleaning When necessary, inspect and clean the inside of the keyboard as follows: 1. Remove the six screws holding the keyboard enclosure together. NOTE: The keyboard and cable together are con- sidered a whole-unit, field-replaceable assembly. Therefore, disassembly of the keyboard is necessary only when cleaning the inside.

  • Page 108: Troubleshooting

    If disassembly is required, see Section 5. Connector pin assignments are given in Appendix A. Jumper settings are given in Appendix B. Error Messages Messages may appear when running NEC utilities. describes possible system Table Section 4-2 error and warning messages.
  • Page 109 Maintenance and Troubleshooting Table Section 4-2 PowerMate P System Error Messages Message Description detected by the BIOS. Run Setup (see Section 2). CMOS Memory Size The amount of memory on the system board is different than Mismatch the amount in CMOS RAM. Run Setup (see Section 2). CMOS time and date not set Run Setup to set the date and time in CMOS RAM.

  • Page 110: Diagnosing And Solving Problems

    Maintenance and Troubleshooting Table Section 4-2 PowerMate P System Error Messages Message Description XXXX is the hex address where the error occurred. Parity Error ???? Parity error in system memory at an unknown address. Table Section 4-4 ISA NMI Error Messages Message Description Memory Parity Error at xxxxx...
  • Page 111 Maintenance and Troubleshooting Table Section 4-6 Problems and Solutions Problem Symptom Solution Measure voltages with the system board installed. 5. Replace power supply. 6. Replace system board. Power supply malfunction Any one or more of the 1. Perform steps 1 through 4 following conditions could listed in this table under No occur:...
  • Page 112 Maintenance and Troubleshooting Table Section 4-6 Problems and Solutions Problem Symptom Solution 3. Try booting OS from diskette or recopy OS files onto hard disk. 4. Verify correct hard disk is selected. Diskette drive does not work Lamp on drive panel does not 1.
  • Page 113 Maintenance and Troubleshooting Table Section 4-6 Problems and Solutions Problem Symptom Solution 5. Replace system board. Sound/fax/modem No output from both the 8-bit and 1. Check interrupts. Refer to board malfunction 16-bit digitized sounds. Section 1 for interrupt settings. 2. Check DMA channels. Refer to Section 1 for DMA channel settings.
  • Page 114 4-10 Maintenance and Troubleshooting Table Section 4-6 Problems and Solutions Problem Symptom Solution 5. Check cable connections between the monitor connector and the system board (or optional video board). 6. Replace system or video board. Monitor malfunction (cont’d) Blank display (cont’d) 7.

  • Page 115: Beep Codes

    Maintenance and Troubleshooting 4-11 Beep Codes One beep indicates that the system has completed its power-on self-test. If a long beep or a se- ries of long beeps occur, power off the computer and try again. If the long beeps persists, see for the diagnostic beep codes.

  • Page 116: Disassembly And Reassembly

    Section 5 Repair DISASSEMBLY AND REASSEMBLY This section contains step-by-step disassembly procedures for the system unit. Reassembly is the reverse of disassembly. Each procedure is supported by a simplified disassembly illustration to facilitate removal. An exploded-view, illustrated parts breakdown (IPB) and parts list for the system are included at the end of this section.

  • Page 117: System Unit Cover Removal

    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 118 Repair Figure Section 5-1 Removing Cover Screws From the rear of the system, grasp the sides and slide the cover about an inch away from the front panel (see Figure Section 5-2). NOTE: The cover fits tightly. Press the front edge of the cover to release it from the front panel.

  • Page 119: Expansion Board Removal

    Repair Lift the cover up and away from the system unit. Expansion Board Removal Remove the any installed expansion board(s) per the following steps. Remove the system unit cover as previously described (see “System Unit Cover Removal” in this section). Label and remove any cables connected to the board.
  • Page 120 Repair Remove the system unit cover as previously described (see “System Unit Cover Removal” in this section). Locate the SIMM sockets (see Figure Section 5-4). Figure Section 5-4 System Board Upgrade SIMM Sockets Press the metal clips at the outer edges of the socket away from the SIMM. Push the SIMM away from the locking tabs (tilt the SIMM forward) and remove it from the socket (see Figure Section 5-5).

  • Page 121: Front Panel Assembly Removal

    Repair Figure Section 5-5 Removing a SIMM NOTE: For information on installing SIMM sticks, see Section 3, “Options”. Front Panel Assembly Removal Remove the front panel from the system unit as follows. Remove the system unit cover as previously described (see “System Unit Cover Removal”...

  • Page 122: Blank Panel And Metal Cover Plate Removal

    Repair Blank Panel and Metal Cover Plate Removal Remove the blank panels and the metal cover plates from the chassis as follows. Remove the blank panel from the selected slot by pressing the panel tabs from inside the front panel and pushing the blank panel out (see Figure Section 5-7). Store the blank panel for possible later reinstallation.
  • Page 123 Repair Store the slot cover in case you choose to use it in the future. Figure Section 5-8 Locating and Removing the Slot Covers...

  • Page 124: 1/2-Inch Drive Bracket Removal

    Repair 3 1/2-Inch Drive Bracket Removal Remove the 3 1/2-inch drive bracket as follows. Remove the system unit cover as previously described (see “System Unit Cover Removal” in this section). Label and disconnect the cables attached to any hard disk drive installed in the 3-1/2-inch bracket.

  • Page 125: Speaker Assembly Removal

    5-10 Repair Remove the system unit cover as previously described (see “System Unit Cover Removal” in this section). Remove the front panel assembly as previously described (see “Front Panel Assembly Removal” in this section). Unplug the fan from its connector on the system board. Press in the card guide tabs on the front of the system unit (see Figure Section 5- 10) to release the left side of the card guide from the chassis.

  • Page 126: 1/2-Inch Diskette Drive Removal

    Repair 5-11 Figure Section 5-11 Speaker Remove the speaker from the system unit. 3 1/2-inch Diskette Drive Removal Remove the 3 1/2-inch diskette drive as follows. Remove the system unit cover as previously described (see “System unit cover Removal”). Unplug the diskette drive power cable and signal cable from the diskette drive (see Figure Section 5-12).

  • Page 127: 1/4-Inch Device Removal

    5-12 Repair Figure Section 5-13 Diskette Drive Bracket Screws Slide the 3 1/2-inch diskette drive out of the slot in the front of the chassis. 5 1/4-Inch Device Removal Remove a 5 1/4-inch device (CD-ROM reader or other device) from the 5 1/4-inch device cage as follows.
  • Page 128 Repair 5-13 Figure Section 5-14 Front and Left Side Device Screws Figure Section 5-15 Right Side Device Screws Remove the four screws that secure the rails to the sides of the device(see Figure Section 5-16).

  • Page 129: Rear Internal 3 1/2-Inch Drive Removal

    5-14 Repair Figure Section 5-16 Removing the Device Rails Rear Internal 3 1/2-Inch Drive Removal Remove a second 3 1/2-inch hard disk drive from the system as follows. Remove the system unit cover as previously described (see “System Unit Cover Removal”...
  • Page 130 Repair 5-15 Figure Section 5-17 Removing the Drive Bracket Screws Lift up the bracket to release it from the metal tabs and remove the bracket (containing the two hard disks) from the chassis. Remove the four screws, two to a side, securing the second drive in the top slot of the 3 1/2-inch drive bracket.

  • Page 131: Power Supply Removal

    5-16 Repair Power Supply Removal Remove the power supply as follows. Remove the system unit cover as previously described (see “System Unit Cover Removal” in this section). If installed, remove the rear internal drive cage as previously described (see “Rear Internal 3 1/2-Inch Drive Removal”...

  • Page 132: Pci/Isa Backboard Removal

    Repair 5-17 PCI/ISA Backboard Removal Remove the PCI/ISA backboard per the following steps. Remove the system unit cover and any installed expansion slot boards as previously described in this section. Remove the two screws that secure the backboard to the support bracket (see Figure Section 5-20).

  • Page 133: Illustrated Parts Breakdown

    Figure Section 5-21 System Board Removal Illustrated Parts Breakdown This subsection contains the illustrated parts breakdown (IPB) and NEC part numbers for the PowerMate P Series computer. Table Section 5-2 lists the field-replaceable parts for the computer. Figure Section 5-22 is the illustrated parts breakdown.
  • Page 134 Repair 5-19 Table Section 5-2 PowerMate P Series Field-Replaceable Parts List* Item Description Part Number 5 1/4-Inch Blank Panel Cover (plastic) 158-030810-000 Front Bezel Assembly (with cables) 158-050896-000 Logo (150 CPU) 158-030872-014 Logo (166 CPU) 158-030872-015 Speakers (20 watt) 158-050979-000 System Unit Cover 158-056325-000 Power Supply (200W)
  • Page 135 5-20 Repair Figure Section 5-22 PowerMate P Series Illustrated Parts Breakdown* ____________ * This data was prepared March 1996. For an up-to-date listing of spare parts, please call FastFacts (800) 366-0476 and order document number 42181410.
  • Page 136 Repair 5-21 Table Section 5-3 PowerMate P Series Video Upgrade Options Description Part Number Video Memory Upgrade Module (2 MB) 158-050994-000 Video Memory Upgrade Module (6 MB) 158-050994-002 Table Section 5-4 lists PowerMate P Series documentation and packaging. Table Section 5-4 PowerMate P Series Documentation and Packaging* Description Part Number PowerMate P Series User’s Guide...

  • Page 137: Appendix A Connector Pin Assignments

    Appendix A Connector Pin Assignments This appendix describes the system board connector pin assignments. Figure Appendix A-1 shows the locations of the system board connectors. shows an exploded view of the smaller connectors on the lower right side of the system board. Table A-1 identifies the connector function with the connector number.
  • Page 138 Connector Pin Assignments Figure Appendix A-2 System Board Connectors, Lower Right Table Appendix A-1 System Board Connectors Function Connector Number Type Microphone In MIC IN 1/8-Inch banana connector Line In LINE IN 1/8-Inch banana connector Line Out LINE OUT 1/8-Inch banana connector Parallel Interface J9 (PRINTER) 25 pin female sub D-shell...

  • Page 139: Serial Interface Connectors

    Connector Pin Assignments Table Appendix A-1 System Board Connectors Function Connector Number Type Infrared (IRDA) IRDA 1 x 4 pin header Suspend Button SLEEP 1 x 2 pin header Hard disk LED HDLED 1 x 4 pin header Power LED POWER LED 1 x 5 pin header Reset Button...

  • Page 140: Parallel Interface Connector

    Connector Pin Assignments Table Appendix A-2 RS-232C Serial Port Connector Pin Assignments Signal Carrier detect Receive data Transmit data Data terminal ready Signal ground Data set ready Request to send Clear to send Ring indicator 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.
  • Page 141 Connector Pin Assignments Table Appendix A-3 Parallel Printer Port Connector Pin Assignments Signal Strobe Data bit 0 Data bit 1 Data bit 2 Data bit 3 Data bit 4 Data bit 5 Data bit6 Data bit 7 Acknowledge Busy Select Auto feed XT Error Initialize...

  • Page 142: Vga Interface Connector Pin Assignments

    Connector Pin Assignments VGA INTERFACE CONNECTOR PIN ASSIGNMENTS Video signals are output from the VGA interface connector, which is a 15-pin, D- subconnector (VESA VS890803-2) located on the video board (installed in one of the ISA slots on the PCI/ISA backboard.). Table Appendix A-4 and Figure Appendix A-5 shows the connector pin locations and pin assignments.

  • Page 143: Speaker Connector Pin Assignments

    Connector Pin Assignments SPEAKER CONNECTOR PIN ASSIGNMENTS Speaker connector pin locations and pin assignments are shown in Table Appendix A-5. Table Appendix A-5 Speaker Connector Pin Assignments Signal Speaker data out +5 Volts POWER SUPPLY CONNECTOR Voltages from the power supply are input to the system board through the power supply connector.

  • Page 144: Keyboard And Mouse Connectors

    Connector Pin Assignments KEYBOARD AND MOUSE CONNECTORS The keyboard and mouse use standard PS/2 connectors. Pin assignments are given in Table Appendix A-6. Table Appendix A-6 Keyboard and Mouse Connector Pin Assignments Keyboard Connector Mouse Connector Keyboard Data Mouse Data +5V, (fused) +5V, (fused) Keyboard Clk...

  • Page 145: Fan Connector

    Connector Pin Assignments FAN CONNECTOR Fan connector pin assignments are given in Table Appendix A-9. The connector plugs into one of the power supply cable connectors. Table Appendix A-9 Fan Connector Pin Assignments Signal Ground +12V (fused) Ground DISKETTE DRIVE INTERFACE PIN ASSIGNMENTS Table Appendix A-10 provides the pin assignments for the diskette drive interface.

  • Page 146: Ide Interface Connectors

    A-10 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 147: Simm Sockets

    Connector Pin Assignments A-11 SIMM SOCKETS Table Appendix A-12 provides the SIMM socket pin assignments. Table Appendix A-12 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 148: Isa/Pci-Bus Backboard Connector Pin Assignments

    A-12 Connector Pin Assignments ISA/PCI-BUS BACKBOARD CONNECTOR PIN ASSIGNMENTS Table Appendix A-13 provides the pin assignments for the ISA/PCI-bus backboard connector on the system board. Table Appendix A-13 ISA/PCI-Bus Backboard Connector Pin Assignments Signal Signal Signal Signal IOCHCK SD07 RSET DRV SD06 PCIINT1 PCIINT3...
  • Page 149 Connector Pin Assignments A-13 Table Appendix A-13 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...

  • Page 150: Isa Expansion Bus Connector Pin Assignments

    A-14 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 Appendix A-14 provides the pin assignments for the ISA expansion slots. Table Appendix A-14 ISA Expansion Slot Pin Assignments Direction Signal...
  • Page 151 Connector Pin Assignments A-15 Table Appendix A-14 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...

  • Page 152: Cd Audio In Connector Pin Assignments

    A-16 Connector Pin Assignments CD AUDIO IN CONNECTOR PIN ASSIGNMENTS The pin assignments for the CD audio-in connector are provided in Table Appendix A-15.. Table Appendix A-15 CD Audio In Connector Signal Speaker Data...

  • Page 153: 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 clearing CMOS. CAUTION: Jumpers are set correctly at the factory for the shipped configuration.

  • Page 154: 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 and ATCLK jumpers. 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 155: Changing The Password

    System Board Jumpers Figure Appendix B-2 Processor Upgrade Jumpers CHANGING THE PASSWORD If a password is forgotten, use the following procedures to clear the current password and to set a new one. 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 156: Clearing Cmos

    System Board Jumpers Remove the system unit cover (see Section 3, Option Installation, for cover removal). Locate the Password Clear jumper block on the system board (see Figure Appendix B-1). Remove any expansion boards blocking access to the jumper. Set a jumper on the Password Clear jumper block pins. Reinstall the system cover.
  • Page 157 System Board Jumpers Reinstall the system cover. Connect the system unit and any peripherals. Turn on the system. The system displays a system configuration error message. Turn off the system and unplug the system and any connected peripherals. Remove the system cover and the jumper from the BIOS Recovery jumper block pins Install any removed expansion boards.

  • Page 158: Appendix C Hard Disk Drive Specifications And Jumper Settings

    Table 1-1 and Table 1-2 in Section 1 identifies the which hard disk drives ship in which configurations. NEC part numbers for the hard drives are provided in Sections 5. The standard IDE hard drive is set as the master device on the primary IDE connector. The drive is connected via a three-connector IDE cable to the system board.

  • Page 159: 1.6-Gb Hard Disk Drive Jumper Settings

    Hard Disk Drive Specifications and Jumper Settings Table Appendix C-1 Hard Disk Drive Specifications 1.6-GB Hard 2-GB Hard Disk Features Disk (CFS1621A) (ST32140A) Dimensions Height 1.0 in. (25.4 mm) 1.03 in. (25.4 mm) Length 5.75 in. (146.1 mm) 5.79 in. (146.6 mm) Width 4.00 in.

  • Page 160: J5 Master/Slave Select

    Hard Disk Drive Specifications and Jumper Settings 2-GB HARD DISK DRIVE JUMPER SETTINGS The 2-GB hard drive has three jumper blocks used to configure the drive. These are identified on the drive as J5 (master/slave select), J6 (dual drive emulation), and J8 (remote LED option).

  • Page 161: 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 Sections 5. CD-ROM READER SPECIFICATIONS Table Appendix D -1 lists the specifications for the six-speed CD-ROM reader.

  • Page 162: Cd-Rom Reader Connectors And Jumper Settings

    Quad-Speed CD-ROM Reader Specifications and Jumper Settings Table Appendix D -1 Specifications for Six-Speed CD-ROM Reader Feature Specification General Specifications Interface ATA Packet Interface SFF-8020 Rev. Capacity 650 MB (depends on CD format) Disc Loading Motorized Front Loading (caddyless) Logical Format Data disc: ISO 9660 file format MTBF (power-on hours)
  • Page 163 Quad-Speed CD-ROM Reader Specifications and Jumper Settings Adjacent to the standard 40-pin IDE connector on the back of the CD-ROM reader is a jumper block with the following labels as read from left to right: C.S., SL, and MA. The following is a summary of the jumper settings: C.S.
  • Page 164 Glossary applications programs Software designed to perform specific functions, like solving business or mathematical problems. asynchronous communications Method of data transmission where characters are preceded by a start bit and followed by a stop bit, permitting the time between characters to vary. AUTOEXEC.BAT A batch program file that the operating system runs to define hardware device characteristics.
  • Page 165 Glossary-2 An electronic circuit within a computer used for transmitting data or electrical power from one device to another. busy lamp Indicator on the front of the diskette drive that lights when the drive is writing to or reading from a diskette. byte Group of eight contiguous bits.
  • Page 166 Glossary-3 CONFIG.SYS A text file that tells the computer where in memory to load the operating system, what device drivers to install, and what memory management features to activate. conventional RAM The first megabyte of RAM in the system which contains 640 KB of base memory and 384 KB of reserved memory.
  • Page 167 Glossary-4 hardware The electrical and mechanical parts from which a computer is made. hertz (Hz) A unit of frequency equal to one cycle per second. input/output (I/O) The process of transferring data between the computer and external devices. Intelligent Drive Electronics. A hard disk drive type that has controller electronics built into the drive and delivers high throughput.
  • Page 168 Glossary-5 microprocessor A semiconductor central processing unit that is the principal component of a microcomputer. Usually contained on a single chip that includes an arithmetic logic unit, control logic, and control-memory unit. millisecond (ms) One-thousandth of one second; 0.001 second. mode A method of operation;...
  • Page 169 Glossary-6 password A string of characters that the user must enter before the system allows access or system privileges. peripheral Input or output device not under direct computer control. A printer is a peripheral device. pixels Picture elements. Tiny dots that make up a screen image. plug and play An industry-standard phrase indicating the ability to add or remove external devices such as a mouse, keyboard, diskette drive, etc.

  • Page 170: Serial Interface

    Glossary-7 reset The process of returning a device to zero or to an initial or arbitrarily selected condition. resolution The degree of screen image clarity. Video display resolution is determined by the number of pixels on the screen. Resolution is usually specified in pixels by scan lines, for example, 640 by 480.
  • Page 171 Glossary-8 Video Graphics Array. Graphics technology that supports many colors and resolutions (for example, 256 colors and a graphics resolution of 800 by 600 pixels). volatile memory Storage media that loses its data when system power is turned off. Standard memory and memory that you add to your computer are volatile memory.
  • Page 172 Index CI module, 1-20 DMI browser, 1-21 DMI components, 1-20 Baud rate, 1-16 Manageable products, 1-20 Beep codes, 4-10 troubleshooting, 1-22 BIOS update utility, 2-27 usage, 1-22 using, 2-29 Disassembly, 5-1 Boot menu, 2-25 3 1/2-inch diskette drive, 5-11 Boot sequence, 2-19 5 1/4-inch device, 5-12 Bulletin board service, 2-28 blank panel, 5-7...
  • Page 173 IDE adapters, 2-16 microphone, 1-19 Illustrated parts breakdown, 5-20 speakers, 1-19 parts list, 5-18 Infrared Interface, 1-16 Integrated Audio, 1-18 NEC telephone numbers, 4-1 Integrated graphics, 1-11 Numlock, 2-20 graphics accelerator, 1-12 motion video controller, 1-11 Interrupt controller, 1-10 Operation, 2-1...
  • Page 174 Index-3 flash ROM, 1-6 infrared interface, 1-16 Secondary cache, 1-5 integrated audio, 1-18 Security, 2-23 integrated graphics, 1-11 options, 2-23 interrupt controller, 1-10 supervisor password, 2-23 ISA bus, 1-13 Serial interface, 1-15 jumper settings, B-1 specifications, 1-16 parallel interface, 1-14 Setup, 2-1 PCI local bus, 1-13 main menu parameters, 2-15...
  • Page 175 (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 176 (5). If too many devices are attached, they may not ring properly. Modem Service Requirements If the modem malfunctions, all repairs should be performed by NEC Technologies or an NEC Authorized Service Center. It is the responsibility of users requiring service to report the need for service to NEC Technologies or to an NEC Authorized Service Center.
  • Page 177 (For Canadian Use Only) This equipment is a Class B digital apparatus which complies with the Radio Interference Regulations, C.R.C., c.1374. Cet appareil numérique de la classe B est conforme àu Règlement sur le brouillage radioélectrique, C.R.C., ch.1374. Canadian Department of Communications Modem Connection Requirements NOTE: The Canadian Department of Communications label identifies certified equipment.
  • Page 178 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. 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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