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NEC SP B-Series Service And Reference Manual

Nec computer systems division computer hardware service and reference manual
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A New Direction In Cutting-Edge Technology
D
SP B-S
™
I R E C T I O N
E R I E S
S E R V I C E
A N D
R E F E R E N C E
M A N U A L

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Summary of Contents for NEC SP B-Series

  • Page 1 A New Direction In Cutting-Edge Technology SP B-S ™ I R E C T I O N E R I E S S E R V I C E A N D R E F E R E N C E M A N U A L...
  • Page 2 The NEC CSD 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.

  • Page 3: Table Of Contents

    Contents Preface ...ix Abbreviations ...xi 1 Technical Information System Overview ... 1-2 System Board ... 1-5 Processor... 1-5 System Cache/Memory... 1-5 Chipset ... 1-6 PCI Local Bus ... 1-6 Expansion Bus ... 1-6 BIOS... 1-6 Plug and Play Support... 1-7 CMOS Memory/Real-Time Clock Battery ...
  • Page 4 Boot Menu ...2-13 Hard Drive Submenu ...2-14 Removable Devices Submenu ...2-14 Exit Menu ...2-15 Intel Processor Serial Number Control Utility...2-15 System Requirements ...2-16 Processor Serial Number ...2-16 FAQs ...2-16 Errata ...2-18 Technical Support ...2-18 3 Option Installation General Rules... 3-2 Precautions...
  • Page 5 5 Disassembly and Reassembly Disassembly ... 5-3 System Access Cover ... 5-3 Expansion Board Removal ... 5-3 Front Panel Removal ... 5-4 Side Panel Removal... 5-5 Device Cage Removal ... 5-5 Diskette Drive Removal... 5-6 5 1/4-Inch Device Removal ... 5-6 Optional 3 1/2-Inch Hard Drive Removal...
  • Page 6 C System Resources IRQ Settings...C-2 System Resource Information ...C-2 Jumper Settings ...C-3 Clearing Your Password ...C-4 Recovering the BIOS...C-5 vi Contents...
  • Page 7 Removing a DIMM... 5-9 Removing the Power Supply Screws ...5-10 Removing the System Board Screw...5-11 Direction SP B-Series Desktop Illustrated Parts Breakdown ...5-14 Direction SP B-Series Minitower Illustrated Parts Breakdown...5-17 System Board Expansion Slot, Memory, and I/O Connectors ...B-3 System Board Connectors and Jumper...B-3 Locating the Jumper...C-3...
  • Page 8 Interrupt Level Assignments ... 1-8 DMA Assignments... 1-8 Setup Key Functions ... 2-5 Sample Memory Configurations... 3-9 NEC CSD Service and Information Telephone Numbers ... 4-2 Problems and Solutions... 4-5 Beep Code Descriptions ... 4-9 Disassembly Sequence... 5-2 Direction SP B-Series Desktop Field-Replaceable Parts List ...5-12 Direction SP B-Series Minitower Field-Replaceable Parts List ...5-15...

  • Page 9: Preface

    Preface This service and reference manual contains technical information necessary for servicing and repairing Direction™ SP B-Series systems. The manual includes system setup information, procedures for installing options, and troubleshooting. The manual is written for NEC CSD-trained customer engineers, system analysts, service center personnel, and dealers.

  • Page 10: Abbreviations

    Abbreviations ampere alternating current advanced technology (IBM PC) Bulletin Board Service binary-coded decimal BIOS Customized Utility BIOS basic input/output system binary digit BIOS Upgrade Utility bits per inch bits per second capacitance centigrade Cache high-speed buffer storage constantly addressable memory column address strobe CD/ROM compact disk-ROM character generator...
  • Page 11 integrated peripheral controller inches per second interrupt request kilo (1024) kilo (1000) kilobyte kilogram kilohertz pound light-emitting diode least-significant bit large-scale integration mega milliamps maximum megabyte Monochrome Display Adapter modified frequency modulation megahertz millimeter millisecond most-significant bit NASC National Authorized Service Center not connected Non-maskable Interrupt...

  • Page 12: Technical Information

    Technical Information Overview System Board Modem Board (optional) Diskette Drive Hard Drive CD-ROM/DVD Drive Zip Drive Power Supply Power Management...

  • Page 13: System Overview

    The section provides an overview of the NEC Direction™ SP B-Series computers. Information includes: an overview of system features description of system components. System Overview NEC Direction SP B-Series systems support the Intel with MMX™ technology. The following figures show system features on the front and rear of the desktop and minitower systems.

  • Page 14: Rear Features - Desktop Models

    Rear Features – Desktop Models A – Power Socket B – Mouse Port C – Parallel Port D – Keyboard Port E – USB Ports F – Serial Port 1 G – Serial Port 2 H – Audio Connectors I – Video Connector Audio Connectors –...

  • Page 15: Front Features - Minitower Models

    Front Features – Minitower Models A – CD-ROM/DVD Drive C – Power Lamp E – Disk Lamp Rear Features – Minitower Models A – Power Socket C – Keyboard Port E – Serial Port 1 G – Audio Connectors I – Parallel Port 1-4 Technical Information B –...

  • Page 16: System Board

    Audio Connectors – Minitower Models A – Line Out Jack C – Microphone Jack System Board The system board contains most of the components that provide system functions. The following subsections provide a description of these components. Processor The system board uses a 350-MHz, 400-MHz, or 450-MHz Intel Pentium II processor or a 500-MHz Intel Pentium III processor.

  • Page 17: Chipset

    The system supports the following DIMM configurations: 4-Mbit by 64 (32-MB DIMM) 8-Mbit by 64 (64-MB DIMM) 16-Mbit by 64 (128-MB DIMM). Chipset The Intel 440BX chipset provides DMA, memory, and bus control. The chipset includes the following chips: Intel 82443BX PCI/AGP (PAC) paths, and data paths for transfers between the processor’s host bus, PCI bus, Accelerated Graphics Port (AGP), and main memory.

  • Page 18: Plug And Play Support

    Memory Address 100000-18000000 E8000-FFFFF E0000-E7FFF C8000-DFFFF A0000-C7FFF 00000-9FFFF Plug and Play Support The system comes with Plug and Play BIOS technology. Plug and Play eliminates complicated setup procedures for installing Plug and Play expansion boards. To add a Plug and Play expansion board, simply power off the system, install the board, and power on the system.

  • Page 19: Interrupt Level Assignments

    * Default; setting can be changed. 1-8 Technical Information Interrupt Level Assignments System Resource I/O channel check Reserved, interval timer Reserved, keyboard controller Reserved, cascade interrupt from slave PIC COM2* COM1* LPT2 (Plug and Play option)/audio/user available Diskette drive LPT1* Real-time clock Reserved USB/user available...

  • Page 20: Ide Ports

    IDE Ports The system board provides two fast IDE ports: primary channel and secondary channel. Each port supports two devices for a total of four IDE devices. The system board allows the connection of an IDE CD-ROM drive for system configuration flexibility without the addition of a controller.

  • Page 21: Modem Board (Optional)

    The optional AWE64D PCI sound board replaces the integrated audio system. It provides FM synthesis and 64 simultaneous voices. Modem Board (optional) Optional modem boards include: U.S. Robotics Winmodem, U.S. Robotics 56-Kbps V.90 x2-capable Sportster, and the Diamond Supra 56i K56Flex V.90 PCI modem. Each modem board contains fax and modem capabilities.

  • Page 22: Power Management

    Power Management The Advanced Power Management (APM) program, located on the 82371EB PCI ISA IDE Xcelerator (PIIX4E) chip, reduces system power consumption when there is no activity detected from the keyboard, mouse, diskette drive, CD-ROM/DVD drive, or hard drive after a predefined period of time. As soon as activity is detected, the system resumes where it left off.

  • Page 23: Utilities

    Utilities BIOS Setup Utility Intel Processor Serial Number Control Utility...

  • Page 24: Bios Setup Utility

    This section provides information on configuring the computer. The section includes information on the BIOS Setup Utility for configuring the system Intel Processor Serial Number Control utility for enabling or disabling the Pentium III processor serial number (for Pentium III based systems only). BIOS Setup Utility The BIOS Setup utility is used to configure the main components of the computer.

  • Page 25: How To Start Setup

    How to Start Setup To start the Setup utility, follow these steps: 1. Turn on or reboot the system. 2. Press after POST begins, but before the system boots up. You have about five seconds to press Setup’s Main Menu window appears similar to the following screen. Note: The screen shown is typical of a system.

  • Page 26: Menu Bar

    A Main Menu summary window This area provides a summary of Main Menu Setup parameters. Some Main Menu parameters can be set from this window or they can be set from submenus. The help and navigation window screen. This area provides help information for the Setup option currently selected.

  • Page 27: Legend Bar

    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. The following table describes the legend keys and their alternates. F1 or Alt-H arrow keys arrow keys Home or End PgUp or PgDn...

  • Page 28: Main Menu

    Pentium III processor. The BIOS correctly detects the Pentium III processor at startup. Check for a patch to fix the identification in the General tab at Microsoft’s website (www.microsoft.com) or the NEC CSD website (www.nec-computers.com). Processor Speed This field displays your processor’s speed.

  • Page 29: Advanced Menu

    Advanced Menu This section describes the Advanced Menu parameters. Other menu parameters are available by selecting submenus. Use the arrow keys to move the cursor to a parameter and press available. Plug & Play O/S This option lets you specify whether the operating system or system BIOS will handle the Plug and Play.

  • Page 30: Ide Configuration Submenu

    Mode (Parallel Port) This option sets the mode for the parallel port. The options include “Output Only” (AT-compatible mode), “Bidirectional” (PS/2-compatible mode), “EPP” (Extended Parallel Port – high speed bidirectional), and “ECP” (Enhanced Capabilities Port – high speed bidirectional). An asterisk symbol appearing next to an option indicates that the selected IRQ is set to conflict with another device.
  • Page 31 Multi Sector Transfers This option determines the number of sectors per block for multiple sector transfers. If necessary, check the specification for your hard drive to determine the best setting for optimum drive performance. The options include: 2 Sectors 4 Sectors 8 Sectors 16 Sectors Disabled.

  • Page 32: Floppy Options Submenu

    Ultra DMA This option sets the Ultra DMA Mode for the hard drive. This option cannot be changed when “Auto” is selected. The options include: Mode 0 Mode 1 Mode 2 Disabled. To return to the Advanced Menu, press Floppy Options Submenu This submenu can be used to configure your system’s diskette drives.

  • Page 33: Dmi Event Logging Submenu

    DMI Event Logging Submenu This submenu can be used to view and modify DMI Event Logs. To enter the submenu, highlight the DMI Event Logging field, then press following options appear: Event Log Capacity/Event Log Validity These fields indicate whether space is available in the Event Log and whether the contents of the log are valid.

  • Page 34: Resource Configuration Submenu

    Resource Configuration Submenu This option allows you to reserve specific resources for use by legacy ISA devices. To enter the submenu, highlight this field, then press following options are displayed: Memory Reservation Submenu This option lets you configure memory blocks for use by legacy ISA devices.

  • Page 35: Power Menu

    Power Menu The Power Menu is used to enable or disable the system’s power management features. When the power management option is enabled, the following options appear in the Power Menu: Power Management This feature lets you enable or disable BIOS power management. Inactivity Timer The Inactivity Timer lets you set the length of time that the system needs to be inactive before entering its low-power or Standby mode.

  • Page 36: Hard Drive Submenu

    Scan User Flash Area This option configures the BIOS to scan the flash memory for user binary files that are executed at boot time. The choices are “Enabled” and “Disabled” (default). After Power Failure This option specifies whether or not to restore power to the system if it is turned on and there is a power failure.

  • Page 37: Exit Menu

    Exit Menu The Exit Menu allows you to choose how to exit the Setup program. Press the arrow (cursor) keys to select the desired option, then press choice (or use the arrow key to select another one). Exit Saving Changes This option exits the Setup program and saves your changes to the BIOS.

  • Page 38: System Requirements

    This utility places an icon in the Windows system tray. The icon provides a visual status of the processor serial number. You have the option of hiding the system tray icon. You can disable the processor serial number at any time. However, enabling the serial number requires restarting the system.
  • Page 39 Why would I want to turn off my processor serial number? Intel believes the processor serial number can provide compelling benefits to users. They are developing features in conjunction with the processor serial number to allow responsible service providers to provide services which maintain your privacy.

  • Page 40: Errata

    Errata The technical support number in the help file is incorrect. The correct telephone number for Customer Support for Japan is Service). Technical Support For world wide 7 days a week, 24 hours a day technical support, please visit the Intel support website at Email: support@intel.com.

  • Page 41: Option Installation

    Option Installation General Rules Precautions Access Cover Removal Access Cover Replacement Expansion Boards Memory Upgrade Data Storage Devices External Options...

  • Page 42: General Rules

    This section provides instructions for installing the following options: expansion boards memory upgrade data storage devices external options. All options (except external options) require removal of the access cover. Procedures for removing the cover are included in this section. General Rules Follow these general rules when installing system options.

  • Page 43: Access Cover Removal

    Avoid carpets in cool, dry areas. Leave an option, such as a board or chip, in its anti-static packaging until ready to install it. Dissipate static electricity before handling any system components (for example, boards and chips) by touching a grounded metal object, such as the system’s unpainted metal chassis.

  • Page 44: Access Cover Replacement

    4. Loosen the thumb screw at the rear of the system by turning it counterclockwise. If you installed a lock on the back of the system, unlock the lock and remove it. Press the right release tab. While pressing the tab, push down and back on the right rear of the cover.

  • Page 45: Expansion Boards

    The Direction SP B-Series supports ISA Plug and Play expansion boards. Plug and Play allows the installation of a board in an expansion slot without changing the hardware settings.

  • Page 46: Expansion Slot Locations

    PCI expansion boards run at one half the system host’s bus speed. The PCI bus handles 32 bits of data at a time, being wider as well as faster than the standard ISA bus. PCI boards can send and receive data much faster, thereby boosting system performance.

  • Page 47: Removing The Slot Cover

    Removing the Slot Cover A – Screw Save the screw for installing the expansion board. Be sure to save the slot cover for future use. ! 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.

  • Page 48: Expansion Board Removal

    7. Attach any cables required by the expansion board. 8. Replace the access cover. Expansion Board Removal Use the following steps to remove a board from the system. 1. Remove the system access cover. 2. Label and remove any cables connected to the board. 3.

  • Page 49: Sample Memory Configurations

    When upgrading your system memory, note the following conditions: Be sure to use 168-pin 3.3V DIMMs with gold-plated contacts. Bus speed of 100 MHz is supported. Non-Error Correcting and Checking (64-bit) DIMMs are supported. Note: Although memory size may vary, the SDRAM DIMMs must meet the Intel 4-clock, 100-MHz, unbuffered SDRAM DIMM specification for 64-bit SDRAM.

  • Page 50: Dimm Removal

    Bank 0 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB 128 MB DIMM Removal Use the following procedure to remove a DIMM. Reduce static discharge by touching the system’s metal chassis. 1. Remove the access cover. 2.

  • Page 51: Dimm Installation

    DIMM Installation Use the following procedure to install a DIMM. 1. Remove the access cover. 2. Locate the DIMM sockets. 3. Remove any currently-installed DIMMs that are not needed. See the previous section “DIMM Removal.” Before installing a DIMM, reduce static discharge by touching the system’s metal chassis.

  • Page 52: Device Slots

    Device Slots Your computer has seven storage device slots: one 3 1/2-inch accessible device slot (contains the standard 1.44-MB diskette drive) two internal 3 1/2-inch hard drive slots (one contains the hard drive) four accessible device slots two accessible 5 1/4-inch device slots (one contains the standard CD-ROM/DVD drive) two 3 1/2-inch device slots;...

  • Page 53: Device Cables

    The standard IDE hard drive is set as the master device on the primary IDE connector. The standard CD-ROM drive is the master device on the secondary IDE connector. Installation hardware — check to be certain you have the screws necessary to secure the drive in an accessible drive slot.

  • Page 54: Diskette Drive Signal Cable

    Diskette Drive Signal Cable A two-connector diskette drive signal cable comes attached to the system board and to the standard 1.44-MB diskette drive. Depending on your system, installation of an accessible device, such as a tape backup unit, may require the replacement of the existing diskette drive signal cable with a three-connector cable.

  • Page 55: System Power Cables

    A – Connects to System Board IDE Port B – Connects to IDE Devices 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.

  • Page 56: Device Cabling

    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 1. Connect the IDE signal cable connector to the connector on the IDE device. Take care to prevent bending drive connector pins.

  • Page 57: Storage Device Installation

    Connecting an Accessible 5 1/4-Inch Device A – Device Connector C – Signal Cable Storage Device Installation The following subsections describe how to install 3 1/2-inch and 5 1/4-inch devices. The installation procedures include: removing the front panel removing the CD-ROM/DVD drive installing a 3 1/2-inch device installing a 5 1/4-inch device replacing the front panel.

  • Page 58: Removing The Cd-Rom/Dvd Drive

    A – Two Release Tabs 3. Pull the panel away from the chassis. Removing the CD-ROM/DVD Drive If you need to remove the CD-ROM/DVD drive, you need to remove the accessible device cage. Use the following procedure to remove the accessible device cage. 1.

  • Page 59: Installing A 3 1/2-Inch Device

    2. Slide the cage towards the front of the system and lift it out of the unit. Installing a 3 1/2-Inch Device Use the following procedure to install a 3 1/2-inch device. 1. Follow the preinstallation instructions that came with the device, such as setting jumpers and switches.

  • Page 60: Removing The Bracket Screws

    Removing the Bracket Screws A – Two Drive Bracket Screws Slide the 3 1/2-inch hard drive bracket towards the back of the system unit until it is free of the molded plastic. Align the two screw holes on the hard drive with the two tabs on the bracket (see the following figure).

  • Page 61: Securing The Drive

    Securing the Drive Slide the bracket into the molded plastic drive slot. Secure the bracket to the front panel with the two screws shown in “Removing the Bracket Screws.” If you are installing the device in the standard 3 1/2-inch internal device slot, simply insert the drive into the opening until it is secured (see the following figure).

  • Page 62: Removing The Blank Panel

    6. To install a 3 1/2-inch device in an accessible slot: Remove the plastic blank panel from the selected slot by pressing the panel tab inward and swinging the blank panel out (see the following figure). A – Blank Panel Tab Use a screw driver to remove the metal slot cover by carefully pressing it until it breaks away from the chassis.

  • Page 63: Installing A 5 1/4-Inch Device

    Installing a 5 1/4-Inch Device Install an accessible device into the device slot as follows. 1. Follow the preinstallation instructions that came with the device, such as setting jumpers and switches. Note: If your 5 1/4-inch device comes with drive rails, do not attach them.

  • Page 64: Replacing The Front Panel

    Note: If you removed the accessible device cage, replace it. Secure the device cage with the screw. 12. If you installed a hard drive in the 5 1/4-inch slot, replace the plastic panel. 13. Replace the front panel. 14. Replace the access cover. Replacing the Front Panel To replace the front panel, follow this procedure.

  • Page 65: External Options

    External Options External connectors on the back of the system unit allow for a variety of industry-standard options This subsection provides the installation procedures for the most commonly used external options, which are as follows: parallel printer serial device. For other external devices, see the instructions that come with the option. Parallel Printer Note: Before connecting a printer to the system, be...

  • Page 66: Rs-232C Device Connection

    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. 1. Turn off power to the system and to the serial device. 2.

  • Page 67: Maintenance And Troubleshooting

    Maintenance and Troubleshooting Maintenance Troubleshooting...

  • Page 68: Maintenance

    Direction SP B-Series computers. Also included in this section are system error beep code descriptions and a procedure for replacing the CMOS battery. The following table lists NEC CSD service and information telephone numbers. NEC CSD Service and Information Telephone Numbers Service...

  • Page 69: System Cleaning

    System Cleaning Use the following procedure for cleaning the system. 1. Power off the system and unplug all power cables. 2. Periodically wipe the outside of the system, keyboard, mouse, and monitor with a soft, clean cloth. Remove stains with a mild detergent. Do not use solvents or strong, abrasive cleaners on any part of the system.

  • Page 70: Troubleshooting

    Locating the Mouse Ball Cover 4. Turn the mouse over and remove the ball. 5. Clean the mouse as follows: Clean the mouse ball with tap water and a mild detergent, then dry it with a lint-free cloth. Remove any dust and lint from the mouse socket. 6.

  • Page 71: Problems And Solutions

    Problem Symptom No power Power lamp on computer does not light. Power supply Any of the following conditions malfunction can occur: Front panel lamps out, diskette and/or hard drives do not spin, monitor blank, interface ports not working, and keyboard lamp out and/or cannot input from the keyboard.
  • Page 72 Problem Symptom Computer halts during loading sequence. Diskette drive does not Lamp on drive panel does not work light when diskette is loaded. Hard drive malfunction Hard drive lamp does not light but hard drive can be accessed. Hard drive controller failure message displayed.
  • Page 73 Problem Symptom Modem board No output from board. malfunction Keyboard or mouse Monitor has prompt, but cannot malfunction input data. Monitor malfunction Unable to synchronize display. Wavy display. Blank display. CD-ROM/DVD drive System power not on. malfunction Problems and Solutions Solution Check interrupts (see Appendix C, “System Resources”).
  • Page 74 Problem Symptom Disc tray does not open. Cannot access CD-ROM/DVD drive. No sound from CDs. Zip drive malfunction System power not on. Cannot access Zip drive. 4-8 Maintenance and Troubleshooting Problems and Solutions Solution System power not on. Turn on system power.

  • Page 75: Beep Codes

    Problem Symptom Communication error No or bad data when communicating. Beep Codes During boot up, the computer performs a series of POST (Power On Self Test) routines. A beep code may appear when an error is detected. There are fatal and nonfatal errors.

  • Page 76: Cmos Battery Replacement

    CMOS Battery Replacement Remove the 3-volt lithium battery from the system board as follows. 1. Turn off and unplug the system unit and any external options connected to the system. Removing the battery from the system board causes the computer to lose system configuration information. If possible, run Setup and record the system configuration settings before removing the battery.
  • Page 77 5. With the positive (+) side facing up, press the new battery into the socket. 6. Replace the system access cover. 7. Connect external peripherals and power cables. 8. Run Setup to reconfigure system parameters (see Section 2, “Setup Utility”). Maintenance and Troubleshooting 4-11...

  • Page 78: Disassembly And Reassembly

    Disassembly and Reassembly Disassembly Illustrated Parts Breakdown...

  • Page 79: Disassembly Sequence

    This section contains step-by-step disassembly procedures for the system unit. Reassembly is the reverse of disassembly. The procedures are supported by simplified disassembly illustrations to facilitate removal. A Phillips-head screwdriver is the only required tool. For complete disassembly of the system unit, follow the disassembly order listed in the following table. To reassemble, follow the table and procedures in reverse order.

  • Page 80: Disassembly

    When handling boards or chips, ground yourself to release static. Disassembly Use the following procedures to disassemble the system unit. Note: Unplug the power cord before disassembling the system unit. Voltage is present inside the system unit even after the power is off. All voltage is removed only when the power cord is unplugged.

  • Page 81: Front Panel Removal

    Front Panel Removal Remove the front panel from the system unit as follows. 1. Locate the two plastic tabs at the front of the chassis. They are indicated by two arrows engraved on the chassis. 2. Press down on the two tabs and press in a third tab at the end of the panel to release the panel (see the following figure).

  • Page 82: Side Panel Removal

    Side Panel Removal Remove the side panel from the system unit as follows. 1. Remove the system access cover and front panel as previously described. 2. Locate the two side panel securing tabs at the front of the system. 3. Pull the tabs out and away from the system. 4.

  • Page 83: Diskette Drive Removal

    Diskette Drive Removal Remove the standard diskette drive from the system unit as follows. 1. Remove the system access cover and front panel as previously described. 2. Label and unplug the signal and power cables for the diskette drive. 3. Locate the two clips at the front of the system that secure the diskette drive. Locating the Two Diskette Drive Clips A –...

  • Page 84: Optional 3 1/2-Inch Hard Drive Removal

    Removing the 5 1/4-Inch Device Screws 4. Slide the device out from the front of the system unit. Optional 3 1/2-Inch Hard Drive Removal Remove the optional 3 1/2-inch hard drive as follows. 1. Remove the system access cover and front panel as previously described. 2.

  • Page 85: Standard 3 1/2-Inch Hard Drive Removal

    4. Slide the 3 1/2-inch hard drive bracket towards the back of the system unit until it is free of the molded plastic. 5. Remove the screw on the side of the hard drive securing it to the bracket. Removing the Securing Screw 6.

  • Page 86: Fan Assembly Removal

    Fan Assembly Removal Remove the fan assembly per the following steps. 1. Remove the system access cover (see Section 3, “Option Installation”). 2. At the rear of the system unit, press in on the two locking tabs securing the assembly to the chassis. 3.

  • Page 87: System Board Removal

    4. At the back of the system unit, remove the two screws securing the power supply to the system unit (see the following figure). Removing the Power Supply Screws A – Power supply screws 5. Pull the power supply out of the system unit. System Board Removal Remove the system board per the following steps.

  • Page 88: Removing The System Board Screw

    Removing the System Board Screw A – System Board Screw 4. Slide the system board towards the front of the unit until is clear of the metal shielding and the alignment clips. 5. Lift the board out of the system at an angle. 6.

  • Page 89: Illustrated Parts Breakdown

    Illustrated Parts Breakdown This section contains the NEC CSD part descriptions and the illustrated parts breakdown (IPB) figure for the Direction SP B-Series desktop and minitower computers. The following table and IPB lists and illustrates the field-replaceable parts for the desktop computer. The minitower table and IPB follow the desktop IPB.
  • Page 90 Direction SP B-Series Desktop Field-Replaceable Parts List Item Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown * This data was prepared April 1999. For an up-to-date listing of spare parts, please call FaxFlash 1-888-329-0088 (or 1-916-379-4780 outside the U.S.) and order document 42102343.

  • Page 91: Direction Sp B-Series Desktop Illustrated Parts Breakdown

    Direction SP B-Series Desktop Illustrated Parts Breakdown _______ This data was prepared April 1999. For an up-to-date listing of spare parts, please call FaxFlash 1-888-329-0088 (or 1-916-379-4780 outside the U.S.) and order document 42102343. 5-14 Disassembly and Reassembly...

  • Page 92: Direction Sp B-Series Minitower Field-Replaceable Parts List

    The following table and IPB list and illustrate the field-replaceable parts for the minitower computer. Direction SP B-Series Minitower Field-Replaceable Parts List Item _______ This data was prepared April 1999. For an up-to-date listing of spare parts, please call FaxFlash 1-888-329-0088 (or 1-916-379-4780 outside the U.S.) and order document 42102343.
  • Page 93 Direction SP B-Series Minitower Field-Replaceable Parts List Item Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown Not shown This data was prepared April 1999. For an up-to-date listing of spare parts, please call FaxFlash 1-888-329-0088 (or 1-916-379-4780 outside the U.S.) and order document 42102343.

  • Page 94: Direction Sp B-Series Minitower Illustrated Parts Breakdown

    Direction SP B-Series Minitower Illustrated Parts Breakdown _______ This data was prepared April 1999. For an up-to-date listing of spare parts, please call FaxFlash 1-888-329-0088 (or 1-916-379-4780 outside the U.S.) and order document 42102343. Disassembly and Reassembly 5-17...

  • Page 95: System Specifications

    System Specifications Processor Random Access Memory Read-Only Memory Video Memory Calendar Clock Input/Output Facilities Expansion Slots Keyboard and Mouse Storage Devices Device Slots Graphics Sound System Dimensions Weight Power Recommended Operating Environment...

  • Page 96: Processor

    This section describes system specifications. Processor Microprocessor 500-MHz Pentium III processor Clock Rate 350 MHz internally, 100 MHz FSB 400 MHz internally, 100 MHz FSB 450 MHz internally, 100 MHz FSB 500 MHz internally, 100 MHz FSB Processor Support 32-bit addressing 64-bit data Primary Cache 32 KB of internal write-back cache on processor...

  • Page 97: Read-Only Memory

    Read-Only Memory Flash ROM 2 Mbit Video Memory Standard video memory Calendar Clock Year/Month/Day/Hour/Minute/Second/.01 Second; maintained by battery backup Battery Type Real Time Clock (RTC) battery Input/Output Facilities Integrated Industry-Standard Interfaces Parallel bidirectional, ECP/EPP support; one 25-pin connector Serial two high-speed RS-232C ports using 16C550-compatible UARTs, support transfer rates up to 115.2 Kbits per second;...

  • Page 98: Expansion Slots

    Expansion Slots I/O Bus PCI/ISA Six expansion slots One 8-/16-bit ISA slot Three 32-bit PCI slots One shared ISA/PCI slot One AGP slot Keyboard and Mouse Keyboard Windows 95 enhanced, PS/2-compatible Function Keys Status Lamps Numeric Keypad Separate Cursor Control Keys ®...

  • Page 99: Graphics

    One accessible 5 1/4-inch device slot Two 3 1/2-inch device slots; the lower 3 1/2-inch slot is not accessible on the desktop model Graphics Video Memory – 8 MB or 16 MB Diamond Stealth II G460 Graphics Support (with 8 MB of video memory) 1600 by 1200 pixels, 256 colors 1280 by 1024 pixels, 256/65,000/16.7 million colors...

  • Page 100: Sound System

    Sound System The system board features the Yamaha DS1-L PCI accelerator and Analog Devices AD1819A SoundPort codec. The chips provide the following features: 32-voice XG wavetable 3D stereo support for DirectX full-duplex audio PC/PCI support for legacy DMAC emulation. The optional AWE64D PCI sound board replaces the integrated audio system. It provides FM synthesis and 64 simultaneous voices.

  • Page 101: Recommended Operating Environment

    Recommended Operating Environment Temperature 50 F to 95 F (10 C to 35 C) Relative Humidity 20% to 80% System Specifications A-7...

  • Page 102: Connector Pin Assignments

    Connector Pin Assignments Serial Interface Connectors Parallel Interface Connector Power Supply (Primary) Keyboard and Mouse Connectors Front Panel Diskette Drive Interface Connector IDE Interface Connectors DIMM Sockets AGP Connector ISA Expansion Bus Connectors PCI Expansion Bus Connectors Universal Serial Bus Connectors...

  • Page 103: System Board Connectors

    This appendix describes the system board connector pin assignments. The following “System Board Connectors” table lists the connectors and sockets on the system board. The table also cross-references the page numbers where the connectors and their pinouts are described. The figures show the locations of the connectors and sockets on the system board.

  • Page 104: System Board Expansion Slot, Memory, And I/O Connectors

    System Board Expansion Slot, Memory, and I/O Connectors A – AGP Slot Connector C – Shared ISA/PCI Slot Connectors E – DIMM Socket (Bank 2) G – DIMM Socket (Bank 0) I – Primary IDE Connector System Board Connectors and Jumper A –...

  • Page 105: System Board Internal Connectors

    Description CD-ROM Audio Auxiliary Line-in Audio Telephony Fan 3 Diskette Drive PCI IDE Fan 1 Fan 2 Power Supply System Board Connector Numbers and Types Function Parallel Interface Serial Interface (serial ports 1 and 2) Mouse Keyboard Diskette Drive Power Supply (Primary) DIMM Sockets IDE Interface (Primary) IDE Interface (Secondary)

  • Page 106: Serial Interface Connectors

    Serial Interface Connectors Pin assignments for the serial interface port connectors are listed in the following table. RS-232C Serial Port Connector Pin Assignments Parallel Interface Connector Parallel interface specifications for this port conform to the IBM-PC interface. Pin assignments for the parallel interface connector are listed in the following table.

  • Page 107: Power Supply (Primary

    Power Supply (Primary) Voltages from the power supply are input to the system board through the primary power supply connector. The following table shows the connector pin locations and pin assignments. Primary Power Supply Connector Pin Assignments Signal +3.3V +3.3V Ground Ground Ground...

  • Page 108: Keyboard And Mouse Connectors

    Keyboard and Mouse Connectors The keyboard and mouse use standard PS/2 connectors. Pin assignments are given in the following table. Keyboard and Mouse Connector Pin Assignments Front Panel The front panel connector provides cabling for the buttons and panel LEDs (power and hard disk).

  • Page 109: Diskette Drive Interface Connector

    Diskette Drive Interface Connector The following table provides the pin assignments for the diskette drive interface connector. Diskette Drive Connector Pin Assignments Description Ground Ground Ground Ground Ground Ground Ground No connect Ground Ground Ground Ground No connect Ground Ground Ground B-8 Connector Pin Assignments Description...

  • Page 110: Ide Interface Connector

    IDE Interface Connector 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 and 0.70 V. The two system board IDE connectors are physically identical.

  • Page 111: Dimm Sockets

    DIMM Sockets The following table provides the DIMM socket pin assignments. DIMM Socket Pin Assignments Description DQ10 DQ11 DQ12 DQ14 DQ15 DQM0 DQM1 B-10 Connector Pin Assignments Description Description DQ32 DQ33 DQM2 DQ34 DQM3 DQ35 DQ36 DQ37 DQ38 DQ39 DQ40 DQ41 DQ17 DQ42...

  • Page 112: Agp Connector

    DIMM Socket Pin Assignments Description NC (BA1) AGP Connector The following table provides the pin assignments for the AGP connector. AGP Connector Pin Assignments Description +12V No connect Reserved No connect Ground INTA# RST# GNT1# Vcc3.3 Reserved PIPE# Ground No connect SBA1 Description Description...
  • Page 113 AGP Connector Pin Assignments Description Vcc3.3 SBA3 Reserved Ground SBA5 SBA7 AD30 AD28 Vcc3.3 AD26 AD24 Ground Reserved C/BE3# B-12 Connector Pin Assignments Description Description Vcc3.3 Ground SBA0 SB_STB AD15 Ground Vcc3.3 SBA4 AD13 SBA6 AD11 Ground C/BE0# Vcc3.3 AD31 Reserved AD29 Vcc3.3...

  • Page 114: Isa Expansion Bus Connectors

    ISA Expansion Bus Connectors The expansion slot signals, voltages, and grounds are supplied through the bus connectors. The following table provides the pin assignments for the ISA expansion bus. ISA Expansion Slot Pin Assignments Direction Input Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output...
  • Page 115 ISA Expansion Slot Pin Assignments Direction Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output B-14 Connector Pin Assignments Signal Direction Output Power Output Ground SBHE# Input LA23 Input LA22...

  • Page 116: Pci Expansion Bus Connectors

    PCI Expansion Bus Connectors The expansion slot signals, voltages, and grounds are supplied through the bus connectors. The following table provides the pin assignments for the PCI expansion slots. PCI Expansion Slot Pin Assignments Signal Ground (TRST#) +12V +5V (TMS) +5V (TDI) INTA# INTC#...

  • Page 117: Universal Serial Bus (Usb) Connectors

    PCI Expansion Slot Pin Assignments Signal AD20 Ground AD18 Universal Serial Bus (USB) Connectors The following table lists the pin assignments and signal names for the USB connectors. B-16 Connector Pin Assignments Signal Signal AD21 REQ64C# AD19 +3.3V USB Connectors Signal Name Power USBP0# (USBP1#)

  • Page 118: System Resources

    System Resources IRQ Settings System Resource Information Jumper Settings...

  • Page 119: Irq Settings

    This section includes information on: system interrupt request (IRQ) default settings viewing system resources jumper settings for the system board. IRQ Settings The following settings are the default IRQ settings: IRQ0 (timer) IRQ1 (keyboard) IRQ2 (cascade interrupt) IRQ3 (COM2) IRQ4 (COM1) IRQ5 (LPT2/sound/user available) IRQ6 (diskette drive) IRQ7 (LPT1)

  • Page 120: Jumper Settings

    POST, Setup runs automatically. The Maintenance Menu appears for setting configuration parameters (including speed and password settings). None Enables BIOS recovery procedures. BIOS attempts to recover the BIOS configuration. A recovery diskette is required (downloadable from the NEC CSD website). System Resources C-3...

  • Page 121: Clearing Your Password

    Clearing Your Password The following describes how to clear your system password(s). 1. Turn off the power and unplug the system and any peripherals. Turn off the system before you change any jumper settings. 2. Remove the access cover (see “Access Cover Removal” in Section 3). 3.

  • Page 122: Recovering The Bios

    Recovering the BIOS The following describes how to recover the system BIOS. 1. Turn off the power and unplug the system and any peripherals. Turn off the system before you change any jumper settings. 2. Remove the access cover (see “Access Cover Removal” in Section 3). 3.
  • Page 123 Glossary access time The time period between the supply of an access signal and the output or acceptance of the data by the addressed system. Examples are the access times for DRAMs, SRAMs, hard drives, and CD-ROM drives. Hard drive access time is the time it takes for a computer to get data from the drive.
  • Page 124 Advanced Power Management. An API developed by Intel and Microsoft that allows developers to include power management in the BIOS. APM defines a layer between the hardware and the operating system that effectively shields the programmer from hardware details. application programs Software designed to perform specific functions or a group of functions, like solving business or mathematical problems.
  • Page 125 A digital movie format created by Microsoft. AVI is short for “audio/video interleave,” a method of including a digital movie and its accompanying sound in the same file. Files in the AVI format have the .AVI extension. bad sector Part of a hard drive or diskette drive storage medium that doesn’t hold data. Formatting generally detects and marks these areas so they won’t be used.
  • Page 126 Binary digit. The smallest unit of computer data. A single digital piece of information, generally represented by the numeral 0 or 1. Usually the transition between the states of +5V and -5V within a computer, the charge of a transistor in an integrated circuit, or the change in polarity of a magnetic region on a disk.
  • Page 127 boot sector The part of the boot block that contains the operating system loader, a program that starts by itself and loads the operating system. Bits per second. The number of bits of data that can be transmitted in one second. Because data compression schemes enable more than one bit per voltage transition, bps is equivalent to baud only if no compression is used.
  • Page 128 chassis The metal frame to which the electronic components of the computer (such as the system board, power supply, and drive bays) are attached. The chassis goes inside the system unit cover. checksum A number, calculated from a block of data, used to verify the integrity of that data. For example, a modem could send a block of data and include the number of 1’s that occur in the block.
  • Page 129 DIMM Dual Inline Memory Module. Circuit board with pins connecting to different memory chips on both sides of the board, which allows for wider and faster data transfer (128-bit). See SIMMs. Direct Memory Access. A method for transferring data, usually between memory and a disk drive, without going through the CPU.
  • Page 130 EIDE Extended Integrated Drive Electronics. The EIDE specification is an enhanced version of IDE that allows for faster transfer rates and supports larger hard drive sizes enhanced VGA A video interface that offers more colors or higher resolution than VGA. Enhanced Parallel Port, a parallel port standard for PCs that supports bidirectional communication between the PC and attached device (such as a printer).
  • Page 131 hertz (Hz) A unit of frequency equal to one cycle per second. hexadecimal A number system that uses 16 as the base. (Place value indicates powers of 16.) It uses the digits 0-9 and A-F. Used around computers because a byte (eight binary digits) easily converts to a two digit hexadecimal number.
  • Page 132 Interrupt Request. A signal that, when received by the CPU, makes it stop what it is going to do something else. An interrupt is a way in which a particular device in a computer communicates with the CPU. PCs have 16 IRQ lines that can be assigned to different devices (for example, printers, scanners, modems).
  • Page 133 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. MIDI Musical Instrument Digital Interface. An interface for connecting suitably equipped musical instruments to suitably equipped computers.
  • Page 134 page A type of message transmission in which a message is sent or received via modem to a paging device from a computer (with paging communications software) or telephone. parallel interface Interface that communicates eight bits at a time. parallel printer A printer with a parallel interface.
  • Page 135 printer port Name assigned to the parallel port by the Windows operating system. A second parallel device is assigned LPT2 (if there is another parallel port). Also called the printer port. processor In a computer, a functional unit that interprets and executes instructions. prompt A special symbol indicating the beginning of an input line.
  • Page 136 Self-Monitoring Analysis and Reporting Technology. A hard drive feature that works in conjunction with system software (for example, LANDesk Client Manager, NEC Auto Backup) for identifying a potential problem on the hard drive and automatically backing up system files to a user-specified device, such as a tape or Zip drive.
  • Page 137 system board The main printed circuit board inside the system unit into which other boards and major chip components, such as the system microprocessor, are connected. Tracks per inch. track Any of many concentric circular regions on a disk for storing data. Tracks are divided into sectors.
  • Page 138 VRAM Video RAM. VRAM is special-purpose memory used by video adapters. Unlike conventional RAM, VRAM can be accessed by two different devices simultaneously. This enables a video adapter to access the VRAM for screen updates at the same time that the CPU provides new data. VRAM yields better graphics performance but is more expensive than normal RAM.
  • Page 139 Index Addresses I/O, 2-7 aperture size, 2-11 chipset, 1-6 connector pin assignments, B-11 AWE64D PCI sound board, 1-10 Battery CMOS, 1-7, 2-2, 4-10 removal, 4-10 Beep codes descriptions, 4-9 BIOS, 1-6, 1-7 recovery, C-5 Boot device, 2-14 Boot Menu, 2-13 Cables diskette drive, 3-14 IDE signal, 3-14...
  • Page 140 cabling, 3-14, 3-16 connection, 1-9, 1-10 installing, 3-17, 3-19, 3-23 jumper settings, 3-12 removing CD-ROM/DVD drive, 3-18 sequence, 2-14 support, 1-9, 1-10, 3-11 Expansion boards bus, 1-6 installing, 3-5, 3-6, 3-8 removing, 3-8, 5-3 slot locations, 3-6 slot specifications, A-4 External options parallel printer, 3-25 serial devices, 3-26...
  • Page 141 Video configuration submenu, 2-11 Modem, 1-10 Mouse cleaning, 4-3 connector pin assignments, B-7 specifications, A-4 Multimedia components CD-ROM/DVD drive, 1-10 NEC CSD service, 4-2 support, 4-2 telephone numbers, 4-2 Operating environment specifications, A-7 Option installation 3 1/2-inch devices, 3-19 5 1/4-inch devices, 3-23...
  • Page 142 Repair disassembly, 5-2 Secondary IDE connector, 3-14 Security Menu, 2-12 password clearing, C-4 Serial ports, 1-9, 2-7 connecting to, 3-26 connector pin assignments, B-5 Settings IRQs, C-2 Setup utility Advanced Menu, 2-7 audio, 2-8 Boot Menu, 2-13 boot sequence, 2-14 configuring peripherals, 2-7 diskette drive, 2-10 Exit Menu, 2-15...
  • Page 143 fan assembly, 5-9 front panel, 5-4 power supply, 5-9 side panel, 5-5 standard 3 1/2-inch hard drive, 5-8 system board, 5-10 Technical support, 4-4 Telephone numbers technical support and spare parts, 4-2 Troubleshooting, 4-4 beep codes, 4-9 CMOS battery replacement, 4-10 diagnostics, 4-4 problems and solutions, 4-4 connector pin assignments, B-16...
  • Page 144 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 145 A lithium battery in some computers maintains system configuration information. In the event that the battery fails to maintain system configuration information, NEC recommends that you replace the battery. For battery replacement information, see Section 4 of this manual or call your NEC CSD dealer or the NEC CSD Technical Support Center.
  • Page 146 102343SRV NEC Computer Systems Division Packard Bell NEC, Inc. 4/99 1 Packard Bell Way Sacramento, CA 95828-0903 www.nec-computers.com...

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