Page 1 The information disclosed in this document, including all designs and related materials, is the valuable property of NEC Corporation (NEC) and/or its licensors. NEC and/or its licen- sors, as appropriate, reserve all patent, copyright and other proprietary rights to this docu- ment, including all design, manufacturing, reproduction, use, and sales rights thereto, except to the extent said rights are expressly granted to others.
Page 2: Table Of Contents
Contents Preface......................... Abbreviations....................... xvii Section 1 Technical Information Desktop System Chassis....................1-3 Minitower System Chassis ................... 1-4 System Board ......................1-5 Processor ......................1-7 Secondary Cache ....................1-8 System and Video BIOS ..................1-8 System Memory....................1-9 Integrated Graphics....................1-11 Motion Video Controller................
Page 3 Contents Network Board......................1-20 Plug and Play ....................... 1-20 Power Management ..................... 1-21 Desktop Management Interface..................1-21 DMI Components ....................1-21 Manageable Components ..................1-22 CI Module ......................1-22 DMI Browser ....................... 1-22 Usage ........................1-23 DMI Troubleshooting ................... 1-24 Specifications.......................
Page 4 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 Using the BIOS Update Utility................2-29 Section 3 Option Installation General Rules for Installing Options................3-1 Precautions ........................
Page 5 Contents Device Cabling...................... 3-26 Cabling an IDE Device.................. 3-26 Cabling a Diskette Drive ................3-27 Desktop Storage Device Installation..............3-27 Removing the Desktop 3 1/2-Inch Drive Bracket .......... 3-28 Installing the Desktop 3 1/2-Inch Drive ............3-28 Removing the Desktop Front Panel ............... 3-29 Installing the Desktop 5 1/4-Inch Device ............
Page 6 Contents Speaker Assembly Removal .................. 5-8 SIMM Removal ....................5-9 5 1/4-Inch Device Removal ................... 5-10 Power Supply Removal..................5-11 System Board Removal..................5-13 Illustrated Parts Breakdown .................. 5-14 Section 6 Minitower Repair Disassembly and Reassembly..................6-1 System Unit Cover Removal ................. 6-2 Expansion Board Removal ..................
Page 7 viii Contents IDE Interface Connectors .................... A-9 SIMM Sockets......................A-10 ISA/PCI-Bus Backboard Connector Pin Assignments........... A-11 ISA Expansion Bus Connector Pin Assignments............A-13 Appendix B System Board Jumpers Jumper Locations......................B-1 Changing Processor Jumper Settings................B-2 Changing the Password....................B-4 Clearing CMOS ......................
Page 8 Contents 2-11 Connecting the Microphone ................2-9 2-12 Minitower Power Button, Lamps, and Suspend Button ........2-10 2-13 Typical CD-ROM Reader Controls and Indicators.......... 2-11 Removing Desktop Cover Screws ..............3-3 Releasing the Desktop Cover ................. 3-4 Removing Minitower Cover Screws ............... 3-5 Releasing the Cover ..................
Page 9 Contents 3-34 Left Side Drive Screws .................. 3-34 3-35 Removing the Drive Bracket Screws .............. 3-35 3-36 Securing the Drive to the Bracket..............3-35 3-37 Removing the Front Panel ................3-36 3-38 Locating the Blank Panel Tabs ............... 3-37 3-39 Locating the Slot Cover .................
Page 10 Contents Removing Minitower Cover Screws ............... 6-3 Releasing the Cover ..................6-3 Removing the Screw in the Minitower............6-4 System Board Upgrade SIMM Sockets ............6-5 Removing a SIMM..................6-5 Right Side Front Internal Drive Screws ............6-6 Left Side Front Internal Drive Screws ............6-6 Diskette Drive Bracket Screws...............
Page 11 System Security Options ................2-23 2-10 Power Management Parameters ..............2-25 Recommended Memory Upgrade Path ............3-14 NEC Service and Information Telephone Numbers......... 4-1 Problems and Solutions .................. 4-4 PowerMate V Desktop Disassembly Sequence ..........5-1 PowerMate V Desktop Field-Replaceable Parts List........5-14 PowerMate V Desktop Options ..............
Page 12 Contents xiii System Board Connectors ................A-2 CD Audio in Connector ................. A-3 Serial Port Connector Pin Assignments ............A-3 Parallel Port Connector Pin Assignments............A-4 VGA Interface Connector Pin Assignments ............ A-5 Speaker Connector Pin Assignments .............. A-5 Keyboard and Mouse Connector Pin Assignments.......... A-6 IRDA Connector Pin Assignments ..............
Page 13: Preface
Section 2, Setup and Operation, gives general setup and operation information. Included is a description of the system Setup utility and the factory default configuration settings. A procedure is provided for logging onto the NEC Bulletin Board and obtaining the latest Flash ROM BIOS.
Page 14 Preface...
Page 15: Abbreviations
xvii Abbreviations ampere error checking and correction alternating current enhanced capabilities port (ECP) advanced technology (IBM PC) Enhanced Graphics Adapter Bulletin Board System Enhanced Parallel Port binary-coded decimal EPROM erasable and programmable ROM BIOS Customized Utility EVGA Enhanced Video Graphics Array BIOS basic input/output system Fahrenheit...
Page 16 xviii Abbreviations milliamps switch maximum Technical Assistance Center megabyte Technical Support Center Monochrome Display Adapter transistor/transistor logic modified frequency modulation tracks per inch megahertz volt microphone volts, alernating current MIDI musical instrument device interface volts, direct current multimedia PC VESA video electronics standards association millimeter...
Page 17: Technical Information
Section 1 Technical Information ® The PowerMate V Series of desktop and minitower systems come standard with an Intel Pentium™ processor, a 3 1/2-inch 1.44 megabyte (MB) diskette drive, 256 kilobyte (KB) secondary cache, 8- or 16-MB random access memory (RAM), and 1 MB of video dynamic random access memory (DRAM).
Page 18: Second Release Of System Configurations
Technical Information Table 1-2 Second Release of System Configurations PowerMate V75 PowerMate V100 PowerMate V133 Configurations (75 MHz) (100 MHz) (133 MHz) Hard disk system 3 1/2-inch diskette drive 3 1/2-inch diskette drive 3 1/2-inch diskette drive 850 MB hard disk 850 MB hard disk 850 MB hard disk with 8 MB of RAM...
Page 19: Desktop System Chassis
Technical Information DESKTOP SYSTEM CHASSIS The desktop chassis provides an enclosure for the system board, power supply, four expansion slots, a five-connector PCI/ISA backboard, and four storage device slots. The expansion slots include two 8-/16-bit ISA slots, one dedicated 32-bit PCI slot, and one shared PCI/ISA (32-bit PCI or 8-/16-bit ISA) slot.
Page 20: Minitower System Chassis
Technical Information MINITOWER SYSTEM CHASSIS The minitower chassis provides an enclosure for the system board, power supply, five useable expansion slots, a six-connector PCI/ISA backboard, and seven storage device slots. The expansion slots include three 8-/16-bit ISA slots, one shared PCI/ISA slot, and one 32-bit PCI slot.
Page 21: System Board
Technical Information SYSTEM BOARD Key features of the system board include the following: Intel Pentium 75-, 90-, 100-, or 133-MHz Pentium processor, depending on system configuration 16-KB internal dual write-back cache integrated on the processor 256-KB write-back secondary static random access memory (SRAM) PowerMate V75 (first release) –...
Page 22 Technical Information integrated sound (multimedia configurations only) OPTi Sound Blaster compatible chip on system board Yamaha OPL3 FM synthesis chip on system board built-in 16-bit stereo and FM synthesis Wavetable sound upgradeable 3D sound effects two intelligent drive electronics (IDE) interface channels one fast IDE/PCI channel (primary connector) used by the hard disk drive to transfer data at the hard disk’s optimum rate one standard IDE channel (secondary connector) for the CD-ROM reader...
Page 23: Processor
Technical Information MIDI/joystick connector on the system board for installation of an optional MIDI/joystick kit Audio Wave upgrade connector on the system board for installation of an optional Wave upgrade. Table 1-3 lists the major chips on the system board. See Appendix A, Connector Pin Assignments, for a list of the system board connectors.
Page 24: Secondary Cache
Technical Information PowerMate V100 — 100-MHz processor with internal speed of 100 MHz and external speed of 66 MHz. PowerMate V133 — 133-MHz processor with internal speed of 133 MHz and external speed of 66 MHz. Each processor has 16 KB of write-back primary cache and a math coprocessor. The 16 KB primary cache provides 8 KB for instructions and 8 KB for data.
Page 25: System Memory
Technical Information The Flash ROM allows the system and video BIOS to be upgraded with the BIOS Update utility, without removing the ROM (see Section 2 for further information on the BIOS Update utility). The Flash ROM supports the reprogramming of the system BIOS and the video BIOS.
Page 26: Simm Memory Upgrade Path
1-10 Technical Information SIMMs install directly in the four sockets on the system board. The four sockets are assigned as SIMM 1 through SIMM 4. For non-multimedia configurations, the two standard 4 MB SIMMs are installed in SIMM 1 and SIMM 2. For multimedia configurations, the two standard 8 MB SIMMs are installed in SIMM 1 and SIMM 2.
Page 27: Integrated Graphics
Technical Information 1-11 Integrated Graphics The system has an Alliance ProMotion-6422 PCI local bus motion video playback controller and graphics accelerator integrated on the system board. State of the art techniques are used for optimizing performance in computer graphic intensive applications and graphical user interfaces (GUI).
Page 28: Interrupt Controller
1-12 Technical Information With the standard 1 MB of video DRAM, the video hardware supports the following resolutions, colors, and refresh rates: 1280 by 1024 pixels, 16 colors, 60 Hz 1024 by 768 pixels, 16/256 colors, 60 Hz, 66 Hz, 70 Hz, 72 Hz, and 75 Hz 800 by 600 pixels, 16/256/64K colors, 56 Hz, 60 Hz, 72 Hz, and 75 Hz 640 by 480 pixels, 16/256/64K/16.8 million colors, 60 Hz, 72 Hz, and 75 Hz.
Page 29: Interrupt Assignments
Technical Information 1-13 The interrupt levels are described in Table 1-6. Interrupt-level assignments 0 through 15 are in order of decreasing priority. See Section 2, Setup and Operation, for information on changing the interrupts using Setup. Table 1-6 Interrupt Assignments Interrupt Interrupt Device Priority...
Page 30: I/O Addressing
1-14 Technical Information I/O Addressing The processor communicates with I/O devices by I/O mapping. The hexadecimal (hex) addresses of I/O devices are listed in Table 1-7. Table 1-7 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...
Page 31: Isa Bus
Technical Information 1-15 ISA Bus The system board uses the ISA bus for transferring data between the processor and I/O peripherals and expansion boards. The ISA bus supports 16-bit data transfers and typically operates at 8 MHz. ISA expansion slot connector pin assignments are provided in Appendix A.
Page 32: Parallel Interface
1-16 Technical Information Parallel Interface The system has a 25-pin parallel bidirectional enhanced parallel port on the system board. Port specifications conform to the IBM-PC standards. The port supports Enhanced Capabilities Port (ECP) and Enhanced Parallel Port (EPP) modes for devices that require ECP or EPP protocols.
Page 33: Infrared Interface
Technical Information 1-17 I/O addresses and interrupt levels for the two channels are given Table 1-9. The interrupt level is selectable via Setup to either IRQ3 or IRQ4. Software selectable base addresses are 3F8h, 2F8h, 3E8h, and 2E8h. NOTE: Any interrupts used for the built-in serial ports are not available for ISA parallel ports.
Page 34: Power Supply
Adding a third hard drive to the internal bay requires an optional two-drive connector cable (NEC part number 158-050383-004). The optional cable plugs into the secondary connector on the system board. If adding a fourth hard drive (in a 5 1/4-inch accessible slot), it connects to the unused connector on the optional cable.
Page 35: Keyboard
Technical Information 1-19 KEYBOARD The PS/2-style 104 key keyboard is standard equipment for the system. The keyboard provides a numeric keypad, separate cursor control keys, and 12 function keys, capable of up to 48 functions. Status lamps on the keyboard indicate: Num (Numeric) Lock, Caps (Capital) Lock, and Scroll Lock key status.
Page 36: Cd-Rom Reader
1-20 Technical Information CD-ROM Reader The IDE CD-ROM reader is pre-installed as drive E on multimedia configurations. The reader can be used to load programs from a CD or it can be used to play audio CDs. The reader operates at different speeds depending on whether the CD contains music or data. The reader is fully compatible with Kodak Multisession Photo CDs™...
Page 37: Power Management
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 the NEC DMI Browser. The CI module provides the instrumentation and interface between the BIOS and the DMI Service Layer (SL).
Page 38: Manageable Components
The Browser has the ability to set attributes and manage DMI components. The NEC Browser can only accesses 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 39: Usage
Browser, it restores all the viewing screens to the last known position. Usage To start the NEC DMI Browser, simply double click on the NEC DMI Browser 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, hard disk drive information, and memory information.
Page 40: Dmi Troubleshooting
DMI Troubleshooting If trouble is experienced when using the NEC DMI Browser, here are a few suggestions on how to clear up the problem. Reboot the system after installation, otherwise you may have problems running the NEC DMI Browser.
Page 41: Specifications
Technical Information 1-25 SPECIFICATIONS System specifications are included in Table 1-10. Table 1-10 Specifications Item Specification Dimensions and Weight Desktop Width: 16.2 inches (42.9 cm) Depth: 16.2 inches (41.2 cm) Height: 4.4 inches (11.2 cm) Weight: 24.5 lb (11.1 kg) (dependent upon options) Minitower Width: 8.5 inches (21.6 cm) Depth: 16.44 inches (41.8 cm)
Page 42 1-26 Technical Information Table 1-10 Specifications Item Specification System Memory Standard 8-MB standard, expandable to 128 MB using SIMM sockets Multimedia and 1.2 GB Hard 16-MB standard, expandable to 128 MB using SIMM sockets Disk Systems Optional SIMMs 4-, 8-, 16-, and 32-MB; 32-bit, non-parity, 70-ns SIMMs Integrated Graphics Alliance ProMotion-6422 PCI GUI Accelerator and Motion Video Playback Controller...
Page 43 Technical Information 1-27 Table 1-10 Specifications Item Specification 7 Watt Speakers Standard in multimedia systems (Mli™ 691H Hi-Fi Sound Magnetic shielded 7-watt stereo speakers Monitor) Power on/off switch, power lamp, volume control Mini-stereo headphone jack Amplifier frequency response, 80 ~ 20 KHz Frequency response, 2-20 KHz, 2dB Input sensitivity, 1000 mV S/N ratio, 40 dB...
Page 44: 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 45: Desktop Voltage Selector Switch
Setup and Operation Voltage Selector Switch System Power Socket Figure 2-1 Desktop Voltage Selector Switch Connect the keyboard, mouse, monitor, and printer cables to the back of the system unit (see Figure 2-2). Serial Port 1 Printer Port Serial Port 2 Audio Mouse Port VGA Monitor...
Page 46: Desktop Network Board Connections
Setup and Operation If setting up a network-ready system, connect the appropriate network cable to the network board at the rear of the system (see Figure 2-3). CAUTION: If adding a T-connector, be sure that other network users are logged off the system before connecting the cable.
Page 47: Assembling The Microphone Holder
Setup and Operation Assemble and connect the microphone (multimedia systems only) as follows. Slide the microphone holder into the slot in the microphone stand as far as it will go (see Figure 2-4). Slide the microphone cable and microphone into the holder. Adjust the microphone by pivoting it up and down and side to side.
Page 48: Desktop Power Button, Lamps, And Suspend Button
Setup and Operation Press the power button (see Figure 2-6) to power-on the system. The power lamp lights green, indicating that the system is in Full-Power On 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: Minitower Setup
Setup and Operation Minitower Setup Set up the minitower systems by making the following connections. Set the voltage selector switch to 115V (U.S. and Canada) or 230V and plug the power cord into the power socket (see Figure 2-7). NOTE: The correct AC input voltage must be properly set.
Page 50: Minitower Peripheral Connections
Setup and Operation Connect the keyboard, mouse, monitor, and printer cables to the back of the system (see Figure 2-8). VGA Monitor Connector Audio Connectors Printer Port Serial Port 1 Serial Port 2 Keyboard Port Mouse Port Figure 2-8 Minitower Peripheral Connections If setting up a network-ready system, connect the appropriate network cable to the network board at the rear of the system (see Figure 2-9).
Page 51: Assembling The Microphone Holder
Setup and Operation If installing a multimedia system, connect the speakers as follows. Locate the right speaker (has the controls on the front) and the speaker cable attached to the back. Locate the left speaker and the speaker cable attached to the back. Connect the right speaker cable to the left speaker cable.
Page 52 Setup and Operation Plug the microphone into the microphone in jack at the rear of the system (see Figure 2-11). Microphone In Jack Line In Jack Line Out Jack Figure 2-11 Connecting the Microphone Press the power button (see Figure 2-12) to power-on the system. The power lamp lights green, indicating that the system is in Full-Power mode.
Page 53 2-10 Setup and Operation If a problem occurs and is not indicated by beeps, power off the system and Troubleshoot. NOTE: If the system displays a message indicating that system settings have changed, run Setup (see “System Configuration” later in this section).
Page 54: Cd-Rom Reader
Setup and Operation 2-11 CD-ROM READER A CD-ROM reader (see Figure 2-13) comes pre-installed as drive E in the multimedia configurations. The reader is set as a master device, and is connected to the secondary IDE/PCI port on the system board. NOTE: The CD-ROM reader installed in the system might look different than one shown in the following figure.
Page 55: System Configuration
2-12 Setup and Operation To load a disc in the 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 again and the tray closes. To remove the disc, press the open/close/stop button.
Page 56: How To Start Setup
Setup and Operation 2-13 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 CMOS battery or real-time clock/battery module needs replacing.
Page 57: How To Use Setup
2-14 Setup and Operation 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 58: Legend Bar
Setup and Operation 2-15 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 59: Field Help Window
2-16 Setup and Operation 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 60: Ide Adapters
Setup and Operation 2-17 See the sections following the table for a description of Main Menu parameters from the summary window. Table 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”...
Page 61: Ide Hard Disk Parameters
2-18 Setup and Operation The factory installed master/slave combination for multimedia configurations with an IDE hard disk and a CD-ROM reader is “2 Masters.” The hard disk is connected to the primary IDE/PCI port and the CD-ROM reader is connected to the secondary IDE/PCI port as a master.
Page 62: Memory Cache
Setup and Operation 2-19 Table 2-3 IDE Hard Disk Parameters Parameter Options Description Write Precomp 0 to 65534 Enables/disables multi-Sector transfers. Disabled None is default if drive is none. Multi-Sector Transfers 2,4,8,16, Sectors Enables/disables multi-Sector transfers. Disabled Disabled is default if drive is none. LBA Mode Control Enabled Enables/disables Logical Block Access.
Page 63: Boot Options
2-20 Setup and Operation Boot Options The system requires a Supervisor password to set Boot parameters. Select “Boot Options” directly from the Main Menu summary window to display the “Boot Options” menu. Use the legend keys to make the selections and exit to the Main Menu. Use Table 2-5 to select the boot options.
Page 64: Advanced Menu
Setup and Operation 2-21 Advanced Menu Accessing the Advanced menu might require a Supervisor password. See Table 2-7 for Advanced Menu parameters. CAUTION: Setting items in the Advanced menu to incorrect values can cause the system to malfunction. Table 2-7 Advanced Menu Parameters Parameter Options Description...
Page 65: Integrated Peripherals Parameters
2-22 Setup and Operation NOTE: A Supervisor password might be required to select parameters from the Integrated Peripherals menu. Use the legend keys to make the selections and exit to the Main Menu. Use Table 2-8 to configure the peripherals. Table 2-8 Integrated Peripherals Parameters Feature Options...
Page 66: 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 67: Power Menu
2-24 Setup and Operation Table 2-9 System Security Options Feature Options Description Set User Password Up to seven Pressing Enter displays the dialog box for alphanumeric entering the user password. This password gives characters RESTRICTED access to Setup menus. Requires prior setting of Supervisor password.
Page 68: Boot Menu
Setup and Operation 2-25 Table 2-10 Power Management Parameters Feature Options Description Enabled (default) Advanced power management (APM) allows Disable APM-aware software to better manage power savings. Keyboard Wakeup Enabled (default)| Allows keyboard activity to wake up system. Disabled Mouse Wakeup Enabled (default) Allows mouse activity to wake up system.
Page 69: 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 70: 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 71: 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 72: Using The Bios Update Utility
Setup and Operation 2-29 After completing downloading of the file, log off the BBS as follows. Press (to continue). Enter 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 73: 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 MIDI/joystick upgrade data storage devices external options. All options require that the system cover be removed. Procedures for removing the desktop and minitower covers are included in this section.
Page 74: Precautions
Option Installation PRECAUTIONS Take care when working inside the system and when handling computer components. Avoid electric shock or personal injury by observing the following warning. WARNING: Before removing the system unit cover, turn off the power and unplug the system power cable.
Page 75: Removing The System Unit Cover
Option Installation REMOVING THE SYSTEM UNIT COVER The following subsections describe how to remove the system unit cover from the desktop and minitower systems. Removing the Desktop Cover WARNING: Before removing the system unit cover, turn off the power and unplug the system power cable.
Page 76 Option Installation From the rear of the system, grasp the sides and slide the cover about an inch away from the front panel (see Figure 3-2). NOTE: The cover fits tightly. Press the front edge of the cover to release it from the front panel.
Page 77: Removing The Minitower Cover
Option Installation Removing the Minitower Cover WARNING: Before removing the system unit cover, turn off the power and unplug the system power cable. Power is removed only when the power cable is unplugged. Turn off and unplug the system unit. Disconnect the keyboard, mouse, monitor, and any other device (such as a printer) connected from the rear of the system.
Page 78: Expansion Boards
Option Installation From the rear of the system, grasp the sides and slide the cover about an inch away from the front panel (see Figure 3-4). NOTE: The cover fits tightly. Press the front edge of the cover to release it from the front panel.
Page 79: Expansion Slot Locations
Option Installation Expansion Slot Locations The desktop system has four expansion slots (see Figure 3-5) and the minitower system has five useable expansion slots (see Figure 3-6): two ISA slots in the desktop system, three ISA slots in the minitower system one PCI slot in the desktop system, one PCI slot in the minitower system one shared PCI/ISA slot in each system.
Page 80: Expansion Board Installation
Option Installation ISA Slots* PCI/ISA Slot PCI Slot * In some models, an ISA slot is occupied by a fax/modem or network interface board Figure 3-6 Locating Minitower Expansion Slots Expansion Board Installation Install expansion boards in the system as follows. Remove the system unit cover as previously described.
Page 81 Option Installation CAUTION: A slot cover can damage the system board or any option board if it falls into the system. Take care to keep the slot cover from falling when removing the screw. If the slot cover does fall into the unit, remove it before replacing the cover.
Page 82 3-10 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 3-9 Inserting the Board in the Desktop Figure 3-10 Inserting the Board in the Minitower Attach any signal cables required by the expansion board.
Page 83: Inside Slot Expansion Board Installation
Option Installation 3-11 Inside Slot Expansion Board Installation Use this procedure if installing an expansion board into the inside slot in a desktop system. Remove the system unit cover as previously described. Follow any preinstallation instructions that comes with the expansion board (such as setting switches or jumpers on the board).
Page 84: System Board Options
3-12 Option Installation Hold the slot cover support over the expansion board bracket and replace the two screws removed earlier (see Figure 3-12). The slot cover support secures the expansion board in place. Expansion Board Slot Cover Bracket Support Screws Figure 3-12 Attaching the Slot Cover Support Attach any signal cables required by the expansion board.
Page 85: Simm Upgrade
Option Installation 3-13 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 supports the following 32-bit (non-parity) 70 ns SIMMs: 1-MB by 32-bit (4-MB stick) 2-MB by 32-bit (8-MB stick) 4-MB by 32-bit (16-MB stick)
Page 86: Recommended Memory Upgrade Path
3-14 Option Installation Table 3-1 Recommended Memory Upgrade Path Total SIMM SIMM Memory Socket 1 Socket 2 Socket 3 Socket 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...
Page 87: Simm Removal
Option Installation 3-15 SIMM Removal Remove a SIMM as follows. CAUTION: Reduce static discharge by touching the system’s metal chassis. Remove the system unit cover as previously described. Locate the SIMM sockets (see Figure 3-13). Press the metal clips at the outer edges of the socket away from the SIMM. Push the SIMM away from the locking tabs and remove it from the socket (see Figure 3-14).
Page 88: Simm Installation
3-16 Option Installation SIMM Installation Install a SIMM as follows. Remove the system unit cover as previously described. Locate the SIMM sockets (see Figure 3-13). 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 89: Video Upgrade
Option Installation 3-17 Video Upgrade Upgrade the video memory by adding two 256-KB by 16-bit video DRAM modules as follows. Remove the system unit cover as previously described. Locate the video DRAM sockets (see Figure 3-13). If any expansion boards are obstructing your view of the sockets, remove the boards (see Expansion Board Removal).
Page 90: Processor Upgrade
3-18 Option Installation 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 91: Processor Installation
Option Installation 3-19 Processor Installation Remove the processor currently in the system (described in the previous procedure). 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 92 3-20 Option Installation CAUTION: Avoid bending any pins during insertion. Use equal pressure on both ends of the connector. If a pin is bent, straighten it carefully. Remove the perforated metal punch-out for the MIDI/joystick connector from the rear panel by pulling the metal plate back and forth until it releases (see Figure 3-17 or Figure 3-18).
Page 93: Data Storage Devices
Option Installation 3-21 MIDI/Joystick Connector MIDI/Joystick Punch-Out Figure 3-18 Removing the Metal MIDI/Joystick Punch-Out in the Minitower DATA STORAGE DEVICES The system board in the computer supports the following storage devices: up to two diskette drives, including the standard 1.44-MB diskette drive up to four IDE devices such as IDE hard disks and an IDE CD-ROM reader.
Page 94 3-22 Option Installation Other accessible devices (diskette drive, tape drive, CD-ROM reader) can be installed in the 5 1/4-inch slots. A hard disk with a 5 1/4-inch form factor can be installed in the 5 1/4-inch slots. Figure 3-19 and Figure 3-20 show the device slot locations in the desktop and minitower systems.
Page 95: Device Preparation
Option Installation 3-23 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. IDE device check the jumper settings on the device before installing it.
Page 96 3-24 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 97: System Power Cables
Option Installation 3-25 Figure 3-23 shows a typical three-connector IDE cable. If the IDE cable is not keyed with a connector tab, align the colored edge of the cable with the pin 1 side of the drive connector. Connects to System Board IDE Port Connects to IDE...
Page 98: Device Cabling
3-26 Option Installation Device Cabling All storage devices require a power and signal cable connection. Devices shipped with the system are already connected. Cable optional devices as follows. Cabling an IDE Device Connect the IDE signal cable connector to the connector on the IDE device. Take care to prevent bending drive connector pins.
Page 99: Cabling A Diskette Drive
Option Installation 3-27 Cabling a Diskette Drive Connect the diskette drive signal cable connector to the signal connector on the diskette drive (see Figure 3-26). Locate an available power connector. Connect the power cable to the power connector on the device. Diskette Drive Signal Cable Connector...
Page 100: Removing The Desktop 3 1/2-Inch Drive Bracket
3-28 Option Installation Removing the Desktop 3 1/2-Inch Drive Bracket The 3 1/2-inch drive bracket containing the diskette drive must be removed before installing any 3 1/2-inch and 5 1/4-inch devices. Remove the bracket as follows. Remove the desktop system cover as previously described. Remove the screw securing the drive bracket to the chassis (see Figure 3-27).
Page 101: Removing The Desktop Front Panel
Option Installation 3-29 Secure the device to the bracket with the four screws, two to a side, that come with the device (see Figure 3-28). Figure 3-28 Securing a 3 1/2-Inch Drive Connect the drive cables. Replace the desktop 3 1/2-inch drive bracket (see Replacing the Desktop 3 1/2-Inch Drive Bracket).
Page 102 3-30 Option Installation Front Panel Blank Panel Tabs (behind panel) Figure 3-29 Removing the Front Panel 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 3-30). Top Blank Panel Tabs Bottom Blank...
Page 103: Installing The Desktop 5 1/4-Inch Device
Option Installation 3-31 Installing the Desktop 5 1/4-Inch Device Install an accessible device into the desktop device cage as follows. Remove the 3 1/2-inch drive bracket from the system unit (see Removing the Desktop 3 1/2-Inch Drive Bracket). Remove the desktop front panel (see Removing the Desktop Front Panel). Follow the preinstallation instructions that come with the device, such as setting jumpers and switches.
Page 104: Replacing The Desktop Front Panel
3-32 Option Installation Replace the drive bracket (see Replacing the Desktop 3 1/2-Inch Drive Bracket). Replacing the Desktop Front Panel Replace the desktop front panel only after it has been removed for a 5 1/4-inch device installation. If installing a 5 1/4-inch device, see Installing the Desktop 5 1/2-Inch Device. Align the four front panel tabs with the holes in the front of the system unit.
Page 105: Minitower Storage Device Installation
Option Installation 3-33 Use the previously removed bracket screw to secure the bracket in place (see Figure 3-33). Screw Tabs 3 1/2-Inch Drive Bracket Figure 3-33 Securing the 3 1/2-Inch Drive Bracket Replace the desktop front panel (see Replacing the Desktop Front Panel). Replace the system unit cover.
Page 106: Installing The 3 1/2-Inch Drive Into The Minitower Internal Front Slot
3-34 Option Installation Installing the 3 1/2-Inch Drive into the Minitower Internal Front Slot Install a 3 1/2-inch hard disk in the front slot of a diskless minitower system as follows. Remove the system unit cover as previously described. Follow the preinstallation instructions that come with the hard disk drive. From inside the chassis, insert the drive into the bottom 3 1/2-inch hard drive slot and connect the drive cables.
Page 107 Option Installation 3-35 Remove the hard disk drive installed in the front slot as follows (see Figure 3-34): Unplug the power and signal cables. Remove the four drive screws (two on each side). Remove the drive from the slot. Remove the two screws that secure the drive bracket to the rear of the system (see Figure 3-35).
Page 108: Removing The Minitower Front Panel
3-36 Option Installation 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. Connect the drive cables.
Page 109 Option Installation 3-37 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 3-38). Front Panel (inside view) Blank Panel Tabs...
Page 110: Installing The Minitower 5 1/4-Inch Device
3-38 Option Installation Installing the Minitower 5 1/4-Inch Device Install an accessible device into the minitower device cage as follows. Remove the minitower front panel as previously described. Follow the preinstallation instructions that come with the device, such as setting jumpers and switches.
Page 111 Option Installation 3-39 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 112: Replacing The Minitower Front Panel
3-40 Option Installation Connect the device cables. Replace the system unit front panel (see Replacing the Minitower Front Panel). Replace the minitower 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.
Page 113: Adding External Options
Option Installation 3-41 ADDING EXTERNAL OPTIONS This subsection includes installation procedures for a parallel printer and serial devices. Procedures for connecting the microphone, speakers, and fax/modem 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 114: Rs-232C Device Connection
3-42 Option Installation Printer Port Printer Cable Screws Figure 3-45 Connecting a Printer Cable to the Minitower 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.
Page 115 Option Installation 3-43 Connect the other end to the serial device. Serial Port 1 Serial Cable Screws Figure 3-46 Connecting an RS-232C Cable to the Desktop Serial Port 1 Serial Cable Screws Figure 3-47 Connecting an RS-232C Cable to the Minitower...
Page 116: Maintenance And Troubleshooting
Maintenance and Troubleshooting This section provides information on maintaining and troubleshooting the PowerMate V Series computers. Also included in this section are NEC service telephone numbers (Table 4-1) and procedures for replacing the CMOS battery or real time-clock chip. Table 4-1 NEC Service and Information Telephone Numbers...
Page 117: System Cleaning
Maintenance and Troubleshooting WARNING: Unplug all power cords before performing any maintenance. Voltage is present inside the system and monitor even after the power button is off. All voltage is removed only when the power cord is unplugged. System Cleaning Use the following procedure for cleaning the system.
Page 118: Mouse Cleaning
Maintenance and Troubleshooting Mouse Cleaning Under normal conditions, the mouse has a self-cleaning mechanism that prevents a buildup of dust or lint around the mouse ball and tracking mechanism. Periodically, however, the mouse ball must be cleaned. Use the following procedure to clean the mouse. Unplug the mouse from the system.
Page 119: Troubleshooting
Maintenance and Troubleshooting TROUBLESHOOTING This subsection provides information that helps isolate and repair system malfunctions at the field level. Step-by-step instructions for diagnosing and solving system hardware problems are provided. If disassembly is required, see Section 5. Connector pin assignments are given in Appendix A.
Page 120 Maintenance and Troubleshooting Table 4-2 Problems and Solutions Problem Symptom Solution Operating system Intermittent beeping at 1. Check system configuration and does not boot power-on. Computer beeps jumper settings (refer to Appendix B). more than once and is unable to complete boot-up. 2.
Page 121 Maintenance and Troubleshooting Table 4-2 Problems and Solutions Problem Symptom Solution Hard disk Cannot access hard disk. 1. Check signal/power connections malfunction (cont’d) between hard disk, PCB, power supply. 2. Check drive jumper settings. 3. Check power supply. 4. Check hard disk cable and hard disk. Replace as necessary.
Page 122 Maintenance and Troubleshooting Table 4-2 Problems and Solutions Problem Symptom Solution Monitor Wavy display. 1. Check that the computer and monitor malfunction are not near motors or electric fields. (cont’d) Blank display. 1. Press any key or move mouse to ensure power management has not blanked the display 2.
Page 123: Cmos Battery Replacement
Maintenance and Troubleshooting Table 4-2 Problems and Solutions Problem Symptom Solution CD-ROM No sound from CDs. 1. Check that speaker power is on and Malfunction volume is adjusted. (cont’d) 2. Check audio software settings. 3. Check CD audio cable. Replace as necessary.
Page 124 Maintenance and Troubleshooting Replace the battery or chip from their socket as follows. Carefully raise the battery spring clip and slide the battery out of the socket (see Figure 4-3). With the positive (+) side facing up, press the new battery into the socket. Battery Clip Figure 4-3 Battery Removal...
Page 125: Desktop Repair
Section 5 Desktop Repair DISASSEMBLY AND REASSEMBLY This section contains step-by-step disassembly procedures for the desktop systems. The hard disk drive, and 3 1/2-inch diskette drive are installed and included in these disassembly procedures. Reassembly is the reverse of disassembly. Each procedure is supported by a simplified disassembly illustration to facilitate removal.
Page 126: System Unit Cover Removal
Desktop 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 127: Expansion Board Removal
Desktop Repair Remove the two cover screws shown in Figure 5-1. Screws Figure 5-1 System Unit Cover Screws Slide the system unit cover toward the front about one inch. Lift the system unit cover up and off (see Figure 5-2). Figure 5-2 Removing the System Unit Cover Expansion Board Removal Remove any installed expansion board(s) using Figure 5-3 through Figure 5-4 and the...
Page 128 Desktop Repair Remove the screw from the expansion slot bracket (see Figure 5-3). To remove a board on the inside of the PCI/ISA backboard, remove the two slot cover support screws shown in Figure 5-4. The slot cover support secures the expansion board in place.
Page 129: Pci/Isa Backboard Removal
Desktop Repair PCI/ISA Backboard Removal Remove the PCI/ISA backboard from the system unit as follows. Remove the system unit cover and all expansion slot boards as previously described. Remove the two screws that secure the backboard to the support bracket (see Figure 5-5).
Page 130 Desktop Repair NOTE: When reinstalling the drives, note that all power cables are keyed to fit only in the correct position. The red edge of the diskette drive signal cable is positioned as shown. Remove the four 3 1/2-inch drive bracket screws (see Figure 5-6). Power Supply Screw...
Page 131: Front Panel Assembly Removal
Desktop Repair Front Panel Assembly Removal Remove the front panel assembly from the system unit as follows. Remove the system unit cover and 3 1/2-inch drive bracket as previously described. Unplug the following cables from their connectors (see Figure 5-8). Power lamp Hard disk drive busy lamp Suspend button...
Page 132: Blank Panel Removal
Desktop Repair Blank Panel Removal Remove the blank panels from the front panel as follows. Remove the system unit cover and front panel as previously described. Remove the blank panel from the selected slot by pressing the panel tabs from inside the front panel and pushing the blank panel out (see Figure 5-9).
Page 133: Simm Removal
Desktop Repair Slide the speaker out from the tabs on the device cage (see Figure 5-10). Speaker Cable to System Board Speaker Figure 5-10 Internal Speaker SIMM Removal Remove SIMM sticks from the system board as follows. Remove the system unit cover, and any full size expansion boards as previously described.
Page 134: 1/4-Inch Device Removal
5-10 Desktop Repair 5 1/4-Inch Device Removal Remove an 5 1/4-inch device from the 5 1/4-inch device cage per Figure 5-12, and the following steps. Remove the system unit cover, front panel, and 3 1/2-inch drive bracket as previously described. Unplug all signal and power cables from the device(s) in the 5 1/4-inch device cage (see Figure 5-12).
Page 135: Power Supply Removal
Desktop Repair 5-11 Power Supply Removal Remove the power supply from the system unit as follows. Remove the system unit cover and front panel as previously described. Unplug the two power cables attached to the system board's connectors. Unplug the power cables from all installed devices. Remove the two screws securing the power button to the front of the system unit (see Figure 5-13).
Page 136 5-12 Desktop Repair Slide the power supply toward the system board to release the two tabs at the front, then lift it out of the system unit. Power Supply Screws Figure 5-14 Power Supply Screws...
Page 137: System Board Removal
Desktop Repair 5-13 System Board Removal Remove the system board per Figure 5-15 and the following steps. Remove the following components as previously described. system unit cover expansion slot boards PCI/ISA backboard 3 1/2-inch drive bracket SIMMs installed on the system board NOTE: Remove the optional video DRAM chips if installed, see Section 3, Options.
Page 138: Illustrated Parts Breakdown
User’s in the U.S. must call 1(800) 233-6321 for parts. User’s in Canada must call 1(800) 727-2787 for parts. To order options in the U.S., call the NEC sales office at 1(800) NEC-INFO. Table 5-2 PowerMate V Desktop Field-Replaceable Parts List*...
Page 139 Desktop Repair 5-15 Table 5-2 PowerMate V Desktop Field-Replaceable Parts List* Item Description Part Number Release Used System Unit Cover 158-050883-002 Both 7 Watt External Speakers with Cables 158-050876-000 Both 8 Watt External Speakers with Cables 158-050980-000 Second (133MHz systems only) Power Supply 158-050730-000 Both...
Page 140 5-16 Desktop Repair Figure 5-16 PowerMate V Desktop Illustrated Parts Breakdown* ____________ * This data was revised March 1996. For an up-to-date listing of spare parts, please call FastFacts (800) 366-0476 and order document number 42181328.
Page 141: Powermate V Desktop Options
Desktop Repair 5-17 Table 5-3 lists the PowerMate V desktop options. Table 5-3 PowerMate V Desktop Options* Description Part Number 4-MB SIMM Upgrade Kit (1 MB x 36-bit) 158-053409-008 8-MB SIMM Upgrade Kit (2 MB x 36-bit) 158-053409-009 16-MB SIMM Upgrade Kit (4 MB x 36-bit) 158-053409-010 32-MB SIMM Upgrade Kit (8 MB x 36-bit) 158-053409-011...
Page 142: Minitower Repair
Section 6 Minitower Repair DISASSEMBLY AND REASSEMBLY This section contains step-by-step disassembly procedures for the minitower systems. The hard disk drive, and 3 1/2-inch diskette drive are installed and included in these disassembly procedures. Reassembly is the reverse of disassembly. Each procedure is supported by a simplified disassembly illustration to facilitate removal.
Page 143: System Unit Cover Removal
Minitower 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 144 Minitower Repair Remove the four cover screws from the rear of the system unit (see Figure 6-1). Screws Screws Figure 6-1 Removing Minitower 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 6-2).
Page 145: Expansion Board Removal
Minitower Repair 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. Remove the screw that secures the board to the support bracket (see Figure 6-3) Figure 6-3 Removing the Screw in the Minitower Pull the board out of the connector.
Page 146 Minitower Repair Locate the SIMM sockets (see Figure 6-4). SIMM Socket 4 SIMM Socket 3 SIMM Socket 2 SIMM Socket 1 Figure 6-4 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 6-5).
Page 147: Front 3 1/2-Inch Drive Removal
Minitower Repair Front 3 1/2-Inch Drive Removal Remove the 3 1/2-inch drive 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 front 3-1/2-inch drive slot.
Page 148: 1/2-Inch Diskette Drive Removal
Minitower Repair 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. Remove the four screws, two on each side, from the 3 1/2-inch diskette drive (see Figure 6-8).
Page 149: Blank Panel And Metal Cover Plate Removal
Minitower Repair One of Six Metal Clips Front Panel Figure 6-9 Removing the Front Panel 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 6-10).
Page 150: 1/4-Inch Device Removal
Minitower Repair Remove the slot cover from the selected slot on the front of the system chassis (see Figure 6-11). On some units, the slot covers may be held in place with screws; other units may have metal tabs holding the slot covers in place. Store the slot cover in case you choose to use it in the future.
Page 151 6-10 Minitower Repair Remove the device as follows: If removing the device from the top 5 1/4-inch slot, remove the four screws, two to a side, that secure the device in the cage (see Figure 6-12 and Figure 6-13). If removing a device from the middle or bottom 5 1/4-inch slot, remove the two screws that secure the device in the cage (see Figure 6-12).
Page 152: Rear 3 1/2-Inch Drive Removal
Minitower Repair 6-11 Remove the four screws that secure the rails to the sides of the device(see Figure 6-14. Device Device Rails Figure 6-14 Removing the Device Rails Rear 3 1/2-Inch Drive Removal Remove an optional 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 153: Card Guide/Fan Bracket Removal
6-12 Minitower Repair 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 154: Speaker Assembly Removal
Minitower Repair 6-13 Card Guide/ Fan Bracket Tabs (Inside View) (Front View) Figure 6-17 Removing the Card Guide/Fan Bracket Assembly Speaker Assembly Removal Remove the speaker per Figure 6-18 and the following steps. Remove the system unit cover as previously described. Unplug the speaker from its connector on the system board (see Appendix A for connector assignments).
Page 155: Power Supply Removal
6-14 Minitower 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 156: Pci/Isa Backboard Removal
Minitower Repair 6-15 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 6-20).
Page 157 6-16 Minitower Repair NOTE: When returning the system board for repair, be sure to remove the processor and any optional video DRAM (see Section 3, Option Installation, for more information). Remove and label all cables connected to the system board. Appendix A provides the connector identifiers and pin assignments for each connector.
Page 158: Illustrated Parts Breakdown
User’s in the U.S. must call 1(800) 233-6321 for parts. User’s in Canada must call 1(800) 727-2787 for parts. To order options in the U.S., call the NEC sales office at 1(800) NEC-INFO. Table 6-2 PowerMate V Minitower Field-Replaceable Parts List*...
Page 159 6-18 Minitower Repair Table 6-2 PowerMate V Minitower Field-Replaceable Parts List* Item Description Part Number Release Used Top Cover 158-050865-001 Both 8 Watt External Speakers with Cables 158-050980-000 Second (133MHz systems only) 7 Watt External Speakers with Cables 158-050876-000 Both Power Supply 158-050684-000 Both...
Page 160 Minitower Repair 6-19 Figure 6-22 PowerMate V Minitower Illustrated Parts Breakdown* ____________ * This data was revised March 1996. For an up-to-date listing of spare parts, please call FastFacts (800) 366-0476 and order document number 42181328.
Page 161: Powermate V Minitower Options
6-20 Minitower Repair Table 6-3 lists the PowerMate V minitower options. Table 6-3 PowerMate V Minitower Options* Description Part Number 4-MB SIMM Upgrade Kit (1 MB x 36-bit)* 158-053409-008 8-MB SIMM Upgrade Kit (2 MB x 36-bit)* 158-053409-009 16-MB SIMM Upgrade Kit (4 MB x 36-bit)* 158-053409-010 32-MB SIMM Upgrade Kit (8 MB x 36-bit)* 158-053409-011...
Page 162: Appendix A Connector Pin Assignments
Appendix A Connector Pin Assignments This appendix describes the system board connector pin assignments. Figure A-1 and Figure A-2 show the locations of the system board connectors. Table A-1 identifies the connector function with the connector number. Pin assignments for the connectors are provided in the following subsections.
Page 163 Connector Pin Assignments Fan Connector IR Connector Remote Connector (not used) Suspend Connector Hard Disk LED Connector Power LED Connector Reset Connector Speaker Connector Figure A-2 Detailed Front System Board Connectors Table A-1 System Board Connectors Function Type VGA Monitor Port 15 pin female sub D-shell Microphone In 1/8-Inch banana connector...
Page 164: Cd Audio Connector Pin Assignments
Connector Pin Assignments CD AUDIO CONNECTOR PIN ASSIGNMENTS The pin assignments for the CD audio connector used in multimedia modes are provided in Table A-2. (The audio connector on the system board in not identified in Figure A-1.) Table A-2 CD Audio In Connector Signal Speaker Data SERIAL INTERFACE CONNECTORS...
Page 165: Parallel Interface Connector
Connector Pin Assignments PARALLEL INTERFACE CONNECTOR The system has a 25-pin parallel port on the system board. Parallel interface specifications for this port conform to the IBM-PC interface. Pin assignments for the parallel interface connector are given in Table A-4. Table A-4 Parallel Port Connector Pin Assignments Signal Strobe...
Page 166: Vga Interface Connector Pin Assignments
Connector Pin Assignments VGA INTERFACE CONNECTOR PIN ASSIGNMENTS Video signals are output from the system board through a VGA interface connector, which is a 15-pin, D-subconnector (VESA VS890803-2) located at the rear of the system unit. Table A-5 provides the connector pin assignments. Table A-5 VGA Interface Connector Pin Assignments Signal Green...
Page 167: Power Supply Connector
Connector Pin Assignments POWER SUPPLY CONNECTOR Voltages from the power supply are input to the system board through the power supply connector. Figure A-3 shows the connector pin locations and pin assignments. Power Good Signal Figure A-3 Power Supply Connector Pin Assignments KEYBOARD AND MOUSE CONNECTORS The keyboard and mouse use standard PS/2 connectors.
Page 168: Irda Connector
Connector Pin Assignments IRDA CONNECTOR The IRDA (infrared) connector pin assignments are given in Table A-8. Table A-8 IRDA Connector Pin Assignments Signal IR RX (IR receive) Ground IR TX (IR transmit) SUSPEND BUTTON CONNECTOR The suspend button connector pin assignments are given in Table A-9. Table A-9 Suspend Connector Pin Assignments Signal Power control...
Page 169: Diskette Drive Interface Pin Assignments
Connector Pin Assignments DISKETTE DRIVE INTERFACE PIN ASSIGNMENTS Table A-11 provides the pin assignments for the diskette drive interface. Table A-11 Diskette Drive Connector Pin Assignments Ground Pin Signal Pin Signal Name FDHDIN Not used FDEDIN INDEX MOTEN1 MOTEN2 STEP WRT DATA WRT EN GATE TRK0...
Page 170: Ide Interface Connectors
Connector Pin Assignments IDE INTERFACE CONNECTORS All signal levels in the IDE interface are TTL compatible. A logic 1 is a signal whose voltage level is between 2.0 and 5.0 V. A logic 0 is a signal measuring between 0.00 V and 0.70 V.
Page 171: Simm Sockets
A-10 Connector Pin Assignments SIMM SOCKETS Table A-13 provides the SIMM socket pin assignments. Table A-13 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 *Identifies SIMM Sockets...
Page 172: Isa/Pci-Bus Backboard Connector Pin Assignments
Connector Pin Assignments A-11 ISA/PCI-BUS BACKBOARD CONNECTOR PIN ASSIGNMENTS Table A-14 provides the pin assignments for the ISA/PCI-bus backboard connector on the system board. Table A-14 ISA/PCI Backboard Connector Pin Assignments Signal Signal Signal Signal IOCHCK SD07 RSET DRV E2 SD06 PCIINT1 PCIINT3...
Page 173 A-12 Connector Pin Assignments Table A-14 ISA/PCI Backboard Connector Pin Assignments Signal Signal Signal Signal SA03 BALE FRAME IRDY SA02 CBE2 DEVSEL SA01 TRDY PLOCK SA00 STOP PERR SBHE MEMCS16 SDONE SERR LAB23 I/OCS16 AD15 LAB22 IRQ10 CBE1 AD14 LAB21 IRQ11 AD12 LAB20...
Page 174: Isa Expansion Bus Connector Pin Assignments
Connector Pin Assignments A-13 ISA EXPANSION BUS CONNECTOR PIN ASSIGNMENTS The expansion slots signals, voltages, and grounds are supplied through the bus connectors. There are no active components on the ISA/PCI-bus backboard. Table A-15 provides the pin assignments for the ISA expansion slots. Table A-15 ISA Expansion Slot Pin Assignments Direction Signal...
Page 175 A-14 Connector Pin Assignments Table A-15 ISA Expansion Slot Pin Assignments Direction Signal Direction Signal Input/Output SA04 Output Input/Output SA03 Output BALE Input/Output SA02 Power Input/Output SA01 Output Input/Output SA00 Ground Input/Output SBHE Input MEMCS16 Input/Output LAB23 Input I/OCS16 Input/Output LAB22 Input IRQ10...
Page 176: 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 177: 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 178 System Board Jumpers ATCLK Processor/Bus Speed 90 100 MHz MHz MHz BF 75-MHz Processor/ 50-MHz Bus Speed 90-MHz Processor/ 60-MHz Bus Speed 100-MHz Processor/ 66-MHz Bus Speed 120-MHz Processor/ 60-MHz Bus Speed 133-MHz Processor/ 66-MHz Bus Speed VRE (3.38 V) VR (3.52V) Figure B-2 Processor Settings with One BF Jumper...
Page 179: Changing The Password
System Board Jumpers ATCLK Processor/Bus Speed 90 100 MHz MHz MHz BF1 BF0 75-MHz Processor/ 50-MHz Bus Speed 90-MHz Processor/ 60-MHz Bus Speed 100-MHz Processor/ 66-MHz Bus Speed 120-MHz Processor/ 60-MHz Bus Speed 133-MHz Processor/ 66-MHz Bus Speed 150-MHz Processor/ 60-MHz Bus Speed 166-MHz Processor/ 66-MHz Bus Speed...
Page 180: 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 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 181 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 182: Appendix C Hard Disk Drive Specifications And Jumper Settings
PowerMate V series computer configurations. 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 and 6 Desktop and Minitower Repair (respectfully).
Page 183 Hard Disk Drive Specifications and Jumper Settings Table C-1 Hard Disk Drive Specifications 540-MB 850-MB 1.2-GB 1.6-GB Features Hard Disk Hard Disk Hard Disk Hard Disk Dimensions Height 1.0 in. (25.4 mm) 1.0 in. (25.4 mm) 1.0 in. (25.4 mm) 1.0 in.
Page 184: 540-Mb Hard Disk Drive Jumper Settings
Hard Disk Drive Specifications and Jumper Settings 540-MB HARD DISK DRIVE JUMPER SETTINGS The 540-MB hard drive uses one user selectable jumper block (JP1) to configure the master/slave and cable select options of the hard drive. Jumper block JP1 has three jumper settings: CS (cable select), DS (drive select), and SP (slave present).
Page 185: 850-Mb Hard Disk Drive Jumper Settings
Hard Disk Drive Specifications and Jumper Settings 850-MB HARD DISK DRIVE JUMPER SETTINGS The 850-MB hard drive uses one user selectable jumper block to configure the master/slave and cable select options of the hard drive. The jumper block has three jumper settings: MA (master), SL (slave), and CS (cable select).
Page 186: Gb Hard Disk Drive Jumper Settings
Hard Disk Drive Specifications and Jumper Settings 1.2- AND 1.6-GB HARD DISK DRIVE JUMPER SETTINGS The Conner 1.2- and 1.6-GB hard drives uses jumper block JP4 at the front of the drive to configure the drive for a master or slave device. Jumper block JP4 has two user-selectable jumper settings: C/D (master/slave select) and CS (cable select).
Page 187: Cd-Rom Reader Specifications
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 for the hard drives are provided in Sections 5 and 6 Desktop and Minitower Repair.
Page 188: Cd-Rom Reader Connectors And Jumper Settings
Quad-Speed CD-ROM Reader Specifications and Jumper Settings Table D-1 CD-ROM Reader Specifications Feature Quad-Speed Specification Six-Speed Specification Supported Formats High Sierra Group Multisession Photo CD CD-ROM XA Single Session Photo CD Mode 1 and 2 Video CD CD-DA CD-Plus MPC III Multisession Photo CD Single Session Photo CD General Specifications...
Page 189 Quad-Speed CD-ROM Reader Specifications and Jumper Settings IDE connector — connects the reader to the secondary PCI/IDE connector on the system board via an I/O cable. Power connector — connects the reader to the power supply via a power supply cable.
Page 190 Index parallel interface, A-4 power supply, A-6 serial interface, A-3 Advanced menu, 2-21 SIMM socket, A-10 speaker, A-5 suspend button, A-7 Battery, 4-8 VGA interface, A-5 Baud rate, 1-17 Cover removal, 3-3 BIOS update utility, 2-27 using, 2-29 Boot menu, 2-25 Desktop Boot sequence, 2-20 chassis, 1-3...
Page 191 Index-2 Diskette drive, 1-18 hard drives, C-1 cables, 3-24, 3-27 password, B-4 processor upgrade, B-2 Expansion board installation, 3-6, 3-8, 3-11 Keyboard, 1-19 Expansion slots, 3-7 cleaning, 4-2 External options, 3-41 parallel printer, 3-41 serial devices, 3-42 Maintenance, 4-1 keyboard cleaning, 4-2 mouse cleaning, 4-3 First release, 1-1 system cleaning, 4-2...
Page 192 2-24 desktop, 2-3 suspend button, 1-21, 2-5 minitower, 2-8 Power supply, 1-18 Power-on-self-test (POST), 2-9 Printer, 3-41 Processor, 1-7 NEC telephone numbers, 4-1 jumpers, B-2 Network board, 1-20 upgrade, 3-18 Network connections desktop, 2-3 minitower, 2-7 Numlock, 2-20...
Page 193 Index-4 integrated peripherals menu, 2-21 secondary cache, 1-8 main menu, 2-14 serial interface, 1-16 main menu options, 2-16 video memory, 1-11 main menu parameters, 2-17 System cleaning, 4-2 memory cache, 2-19 System configuration, 2-12 numlock, 2-20 System memory, 1-9 parameters, 2-12 upgrade path, 1-10 power menu, 2-24 security menu, 2-23...
Page 194 (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 195 BATTERY REPLACEMENT A lithium battery in your computer maintains system configuration information. In the event that the battery fails to maintain system configuration information, replace the battery or real time clock chip. See Chapter 4 for battery replacement information. WARNING: There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer.

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Powermate v series

NEC POWERMATE V Service Manual

Table of Contents

Table of Contents

Appendix DCD-Rom Reader Specifications and Jumper Settings

List of Tables

Technical Information

Setup and Operation

Option Installation

Maintenance and Troubleshooting

Desktop Repair

Minitower Repair

Appendix A Connector Pin Assignments

Appendix B System Board Jumpers

Appendix C Hard Disk Drive Specifications and Jumper Settings

Quick Links

Chapters

Troubleshooting

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Summary of Contents for NEC POWERMATE V