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 ........................xiii Abbreviations ......................Section 1 Technical Information System Chassis ......................1-2 System Board ......................1-3 Processor and Secondary Cache ................1-4 System BIOS......................1-5 I/O Addressing ..................... 1-6 System Memory ....................1-7 Interrupt Controller ....................1-8 Plug and Play......................1-9 ISA Bus......................
Page 3 Contents Section 2 Setup and Operation Unpacking and Repacking ................... 2-1 System Setup....................... 2-1 Keyboard, Mouse, and Power Cables Connection ..........2-1 Monitor Connection ..................... 2-3 Speakers Connections................... 2-3 Microphone Connection ..................2-6 Starting Up........................2-7 Windows NT 3.51 and Driver Installation..............2-7 Matrox Video Driver Installation ................
Page 4 Exit Discarding Changes................2-32 Load Setup Defaults ..................2-32 Discard Changes................... 2-32 Flash Utility......................... 2-32 NEC Bulletin Board Service ................. 2-33 Using the BIOS Update Utility ................2-34 Section 3 Option Installation General Rules for Installing Options ................3-1 Precautions......................3-1 Optional Hardware ....................
Page 5 Contents Adding Internal Options ....................3-5 Expansion Boards....................3-6 Slot Locations ....................Expansion Board Installation ................ Expansion Board Removal................SIMM Upgrade ....................3-9 Checking the Memory in the System ............. 3-10 SIMM Removal.................... 3-11 SIMM Installation ..................3-11 Processor Upgrade ....................3-12 Processor Removal ..................
Page 6 Contents Section 4 Maintenance and Troubleshooting Maintenance ........................ 4-2 System Cleaning ....................4-2 Keyboard Cleaning ....................4-3 Mouse Cleaning....................4-4 Troubleshooting ......................4-5 Error Messages ....................4-5 Diagnosing and Solving Problems................. 4-8 Beep Codes ......................4-12 CMOS Battery Replacement................. 4-13 Section 5 Repair Disassembly and Reassembly ..................
Page 7 viii Contents Reset Button Connector ....................A-9 Infrared Connector ...................... A-10 System Unit Fan Connector ..................A-10 Speaker Connector ...................... A-11 ISA Connectors......................A-12 PCI Connectors ......................A-14 Appendix B System Board Settings Changing Jumper Settings ................... B-1 Processor Jumpers....................B-3 Factory Configuration Jumpers ................
Page 8 Contents Inserting the SIMM ..................3-12 Releasing the processor ................. 3-13 Aligning the Processor................... 3-14 3-10 Aligning the Video WRAM Module with the Socket........3-15 Side Panel Removal ..................3-15 Expansion Slots Locations ................3-15 Removing a Slot Cover.................. 3-15 Inserting the Expansion Board ...............
Page 9 Contents Side Panel Removal ..................5-3 Expansion Board Removal................5-4 SIMM Socket....................5-5 Front Panel Removal ..................5-6 Blank Panel Tabs ................... 5-7 Removing the 3 1/2-Inch Drive Bracket ............5-7 3 1/2-Inch Diskette Drive Cables ..............5-8 Diskette Drive Bracket Screws ..............5-9 3 1/2-Inch Hard Disk Drive Cables ..............
Page 10 Hard Disk Assignments.................. 2-17 Partitioned Hard Disk Assignments..............2-17 Security Passwords..................2-29 Recommended Memory Upgrade Path............3-10 NEC Service and Information Telephone Numbers .......... 4-1 System Error Messages ................. .. 4-5 PCI Error Messages..................4-7 Problems and Solutions..................4-8 Diagnostic Beep Codes..................
Page 11 Contents System Board Connectors................A-1 Parallel Interface Pin Assignments..............A-2 Serial Interface Pin Assignments ..............A-3 Keyboard and Mouse Pin Assignments............A-4 Power Connector Pin Assignments ..............A-5 Diskette Drive Pin Assignments ..............A-6 IDE Interface Pin Assignments ..............
Page 12: Preface
The manual also includes system setup information, procedures for installing options, and illustrated parts lists. The manual is written for NEC-trained customer engineers, system analysts, service center personnel, and dealers.
Page 13: Abbreviations
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 14 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 Video Graphics Array...
Page 15: Section 1 Technical Information
Section 1 Technical Information ® The PowerMate Pro150 is a 150-MHz multimedia system. All systems come standard with an Intel Pentium Pro™ 150 MHz processor, a 3 1/2-inch diskette drive, 1.6 GB IDE hard disk, six-speed CD-ROM reader, 8 watt (W) external speakers, microphone, 256-kilobyte (KB) asynchronous secondary cache, 16-megabyte (MB) random access memory (RAM), and 2 MB of video Windows random access memory (WRAM).
Page 16: System Chassis
Technical Information Sound Blaster AWE32 Accessories diskette SB AWE32 Value Samples diskette Sound Blaster AWE32 Utilities diskette NEC Utilities Diskettes (disks 1 and 2) Matrox MGA MPEG Utilities — Windows NT 3.51 and Windows 95 ® Logitech Mouse Driver — Windows 95/DOS7 TEAC CD-56E (6X) Drivers Installation Disk —...
Page 17: System Board
Technical Information SYSTEM BOARD Key features of the system board include the following: Intel Pentium Pro microprocessor running at 150 MHz Intel 82450 PCI chipset used for PCI/ISA, memory, and peripheral control PC87306B Ultra I/O controller (integrates serial ports, parallel port, floppy disk interface, real time clock, CMOS RAM, keyboard controller, and support for an IrDA-compatible infrared interface) PCI and ISA peripheral connectors on the system board...
Page 18: Processor And Secondary Cache
Technical Information Table 1-1 lists the major chips on the system board. See Appendix A, “Connector Pin Assignments”, for a list of the system board connectors. See Appendix B, “System Board Settings”, for a description of board switches. Table 1-1 System Board Feature Components Chip Function Pentium Chip...
Page 19: System Bios
The system BIOS is always shadowed. Shadowing allows any BIOS routine to be executed from fast 32-bit onboard DRAM instead of from the slower 8-bit flash device. NEC’s Flash ROM allows fast, economical BIOS upgrades. NEC Flash ROMs are reprogrammable system and video EPROMs. With NEC’s Flash ROM, a ROM BIOS...
Page 20: I/O Addressing
Technical Information The system memory map in shown in Table 1-2. Table 1-2 System Memory Map Memory Space Size Function 100000-8000000 130048 KB Extended memory F0000-FFFFF 64 KB AMI System BIOS EC000-EFFFF 16 KB FLASH boot block (available as UMB) EA000-EBFFF 8 KB ECSD (Plug and Play configuration area)
Page 21: System Memory
Technical Information Table 1-3 I/O Address Map Address (Hex) I/O Device Name 0071 Real time clock, data 0078-0079 Reserved - board configuration 0080-008F DMA page registers 00A0-00A1 Interrupt controller 2 00C0-00DE DMA controller 2 00F0 Reset numeric error 0160-0177 Secondary IDE channel 01F0-01F7 Primary IDE channel 0278-027F...
Page 22: Interrupt Controller
Technical Information The memory configuration consists of two banks (bank 0 and bank 1) with two sockets each. The SIMM memory sockets accept 32-bit (non-parity) 4-, 8-, 16-, or 32-MB 60 ns Fast Page (FP) mode SIMMs. NOTE: 36-bit SIMMs may be used, but parity bits are ignored.
Page 23: Plug And Play
Technical Information The interrupt levels are described in Table 1-4. 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 1-4 Interrupt Level Assignments Interrupt Priority Interrupt Device I/O channel check...
Page 24: Isa Bus
1-10 Technical Information ISA Bus The system board uses the ISA bus for transferring data between the processor and I/O peripherals and expansion boards. The ISA bus supports 16-bit data transfers and typically operates at 8 MHz. ISA expansion slot connector pin assignments are provided in Appendix A.
Page 25: Serial Interface
Technical Information 1-11 The BIOS has automatic ISA printer port sensing. If the BIOS detects an ISA printer port mapped to the same address, the built-in printer port is disabled. The BIOS also sets the first parallel interface port it finds as LPT1 and the second port it finds as LPT2. The interrupt is selected to either IRQ5 or IRQ7 via Setup.
Page 26: Infrared Interface
1-12 Technical Information Table 1-6 Serial Port Addressing and Interrupts Starting I/O Address Interrupt Level Port 3F8h IRQ04 COM1 2F8h IRQ03 COM2* 3E8h IRQ04 COM3 2E8h IRQ03 COM4 * Used for IrDA data transfer Note that the COM2 port is factory set for IrDA data transfer and can only be reset to “Disabled”.
Page 27: Video Board
Technical Information 1-13 VIDEO BOARD The system features a Matrox MGA Millennium™ 64-bit, PCI local bus, Window random access memory (WRAM) graphics accelerator, with 2 or 4 MB of video WRAM. The MGA Millennium integrates true color, digital video and 3D into a single chip. MGA Millennium provides up to 200 Hz flicker-free refresh.
Page 28: Video Playback
1-14 Technical Information When the video board contains 8 MB of video WRAM, the following resolutions are available: 640 by 480 - 256, 65K, and 16.7 colors 1024 by 768 - 256, 65K, and 16.7 colors 1152 by 882 - 256, 65K, and 16.7 colors 1280 by 1024 - 256, 65K, and 16.7 colors 1600 by 1200 - 256, 65K, and 16.7 colors.
Page 29: Scsi Board
If CMOS is cleared, the sound board settings stored in the BIOS will not be restored with the defaults. Use an ISA Configuration Utility (ICU) to restore the sound board settings. The NEC defaults are as follows. I/O RANGE: 0220-0233...
Page 30: Network Board
1-16 Technical Information SCSI-2 and SCSI-3 device protocol Advanced SCSI Programming Interface (ASPI) compliant, multi-threaded I/O scatter/gather, tagged queuing, disconnected, synchronous and asynchronous fast and wide. Extended translation scheme supports up to eight GB per disk Drivers may be single-ended, active, or programmable via SCSI configuration utility.
Page 31: Six-Speed Cd-Rom
Technical Information 1-17 All systems ship with one internal 3 1/2-inch hard disk (1-inch high, thin-height) installed behind the front panel in the bottom slot in the drive cage. The three-connector hard disk drive cable plugs into the primary connector on the system board. An optional second hard drive can be connected to the middle connector on the primary IDE cable.
Page 32: Cd-Rom Reader Settings
1-18 Technical Information emergency eject hole in the front panel for manually opening the CD tray if power is lost. Insert a jewelers screwdriver into the hole. Turn the screw counterclockwise to open the tray and clockwise to close the tray. Emergency Eject Hole CD Tray...
Page 33: Power Supply
Technical Information 1-19 POWER SUPPLY The power supply is mounted inside the system unit. It supplies power to the system board, option boards, diskette drives, hard disks, keyboard, and mouse. A fan inside the power supply provides system ventilation. The power supply provides 200 watts. Connector locations are in Appendix A.
Page 34: Specifications
1-20 Technical Information SPECIFICATIONS System specifications are included in Table 1-8. Table 1-8 Specifications Item Specification Dimensions and Width: 8.3 inches (21 cm) Weight Depth: 17 inches (42.5 cm) Height: 15.5 inches (39 cm) Weight: 21.4 lb. (9.79 kg) (dependent upon options) Keyboard Dimensions and Width: 19.0 inches (48.3 cm) Weight:...
Page 35 Technical Information 1-21 Table 1-8 Specifications Item Specification Processor Intel Pentium Pro 150-MHz Cache Memory 16 KB of primary cache (8 KB data, 8 KB instruction) and 256 KB of secondary cache integrated in the processor Flash ROM 128 KB (28F100BXT) Flash ROM Chip Set Intel 82430FX Triton Data Path (TDP) PCI/ISA Chip set System Memory...
Page 36 1-22 Technical Information Table 1-8 Specifications Item Specification Video Board Graphics Support (with 2 MB video WRAM) 1600 by 1200 pixels, 256 colors, vertical refresh rate of 60-78 Hz and horizontal refresh rate of 76-96 Kz 1280 by 1024 pixels, 256 colors, vertical refresh rate of 60-110 Hz and horizontal refresh rate of 63-107 Kz 1152 by 882 pixels, 256/65K colors, vertical refresh rate of 60-120 Hz and horizontal refresh rate of 54-110 Kz...
Page 37 Technical Information 1-23 Table 1-8 Specifications Item Specification Sound Board Creative Labs Sound Blaster AWE32 16-bit and 8-bit digitizing in stereo and mono modes Programmable sampling rate, 5kHz to 44.1kHz I 228 steps 4-operator 20-voice stereo music synthesizer 16- and 8-bit DMA channels using a single interrupt Dynamic filtering for digital audio recording and playback multimedia PC level 2 (MPCII) compliance Sound Blaster and Adlib™...
Page 38: Section 2 Setup And Operation
Operation includes information in loading Windows NT, installing the drivers for system, and running the Setup utility program. Information on using the NEC bulletin board service and running the BIOS update utility is provided at the end of the section. Setting system board switches are described in Appendix B, “System Board Settings.”...
Page 39: Voltage Selector Switch
Setup and Operation Set the voltage selector switch to 115V (U.S. and Canada) or 230V and plug the power cord into the power socket (see Figure 2-1). NOTE: The correct AC input voltage must be properly set. Select the appropriate voltage with the voltage selector switch located at the rear of the system.
Page 40: Monitor Connection
Setup and Operation Monitor Connection NOTE: Use the documentation that comes with your monitor along with the instructions on this sheet to set up the monitor. Locate the monitor signal cable. Connect the monitor signal cable to the system unit. Secure the cable with the connector screws.
Page 41: Speaker Cables
Setup and Operation Identify the cables that come with your speakers. The left speaker cable has a black connector on each end. The other cable is a Y-cable. The Y-cable has a red and white connector at one end and a black connector with two rings at the other end.
Page 42: Attaching The Y-Cable
Setup and Operation Attach the Y-cable as follows. Insert the red connector into the red jack marked “RIGHT LINE IN” on the back of the right speaker. Insert the white connector into the white jack marked “LEFT LINE IN” on the back of the right speaker.
Page 43: Microphone Connection
Setup and Operation Plug the other end of the cable into a properly grounded wall outlet. AC Adapter Right Speaker +15V DC Jack Figure 2-7 Connecting Speaker Components Power on the speakers after the operating system has been loaded. To operate your speakers push the power button on the front of the right speaker and adjust your volume control.
Page 44: Starting Up
Windows NT Setup automatically guides you through each of these steps. Help for these steps are provided in the Windows NT Workstation Installation Guide. NEC recommends that the applications shipped with the system be installed in the following order. Any selections that are different from the defaults have been identified.
Page 45 Press to start Windows NT Setup. Enter The screen prompts you to select either “Express Setup” or “Custom Setup.” NEC recommends that you select “Express Setup.” Press Enter to select “Express Setup.” When prompted insert “Setup Disk 3” and press...
Page 46 Setup and Operation To install Windows NT from CD-ROM, Press Enter To install Windows NT from 3.5” disks (drive A:), press A NOTE: Do not remove the “Setup Disk 3” from drive A yet. When the message appears warning you that any existing partitions will be erased, press to continue.
Page 47 2-10 Setup and Operation Click on “Continue” or press Enter again. ® Insert 3COM EtherDisk driver diskette in A:\ . Scroll down the list and select “<other> Requires Disk From Manufacturer” press Enter. At the Insert Disk Screen type press A:\NDIS\WINNT35 Enter.
Page 48: Matrox Video Driver Installation
Setup and Operation 2-11 When prompted to create an Emergency Repair disk, insert a diskette into drive A and click on “Yes.” To continue without creating an Emergency Repair disk, click on “No.” Remove the Windows NT CD and any diskette from drive A. Click on the “Restart Computer”...
Page 49: Sound Blaster Driver Installation
2-12 Setup and Operation In the Display Settings screen select “OK” or change your resolution if desired. You may be prompted to test your new resolution. Press the “Test” button. Press the “OK” button. The test screen appears for a few seconds, wait for the Test Mode window to appear and click on “Yes”...
Page 50: Mpeg Drivers Installation
After you have installed Windows NT, install the Motion Picture Expert Group (MPEG) driver as follows. Locate the NEC Utilities diskette labeled “Matrox MGA MPEG Utilities” and insert it in drive A. From the Windows NT desktop click on the “File.”...
Page 51: When To Use Setup
The battery supplies continuous power to CMOS memory and maintains configuration information when system power is off (see “Replacing the CMOS Battery” in Section 4). NOTE: NEC recommends that you print out or write down your current Setup parameters and store the information in a safe place. This lets...
Page 52: How To Use Setup
Setup and Operation 2-15 Press after POST, but before the system boots up, to start the Setup utility. Setup’s Main Menu appears and looks similar to the following screen. Main Advanced Security Exit System Date December 27 1995 Help System Time 08:18:20 Back Enter...
Page 53: Main Menu
2-16 Setup and Operation To display a submenu, use the arrow keys to move the cursor to the submenu you want. Then press Enter Main Menu The following subheadings describe the parameters available from the Main Menu. Other Main Menu parameters are available by selecting submenus. NOTE: See How to Start Setup for a look at a typical Main menu screen.
Page 54: Hard Disk Assignments
Setup and Operation 2-17 Jumper settings on the IDE device set the device to master or slave (see the documentation that comes with the device). Drive letters will be assigned to physical drives as follows. Table 2-2 Hard Disk Assignments IDE Interface Hard Drive Connector...
Page 55: Hard Disk Submenu
2-18 Setup and Operation Hard Disk Submenu The Hard Disk Submenu lets you check or change the following hard disk drive parameters. Hard Disk Type Maximum Capacity IDE Translation Mode Multiple Sector Setting Fast Programmed I/O Modes Hard Disk Type The system is shipped with default is “Auto Detected”...
Page 56 Setup and Operation 2-19 Extended CHS mode also overcomes the 528 MB maximum size limitations imposed by the Standard CHS mode. It can be used with drives which are larger than 528 MB, but does not support the LBA mode. Auto Detected (default) allows the BIOS to examine the drive and determine the optimal mode.
Page 57: Language
2-20 Setup and Operation Disabled generates an interrupt generated for each sector transferred, even if the OS issues a multisector transfer. 4 Sector/Block or 8 Sectors/Block transferred 4 or 8 sectors per interrupt (for a requests that are as large or larger than 4 or 8 sectors). Auto Detect (default) transfers x sectors transferred per interrupt, where x is the maximum value supported by the drive.
Page 58: Boot Sequence
Setup and Operation 2-21 Boot Sequence The BIOS attempts to load the operating system in the sequence listed here. The defaults are as follows. First boot device floppy disk Second boot device hard drive Third boot device disabled Fourth boot device disabled System Cache The default for the System Cache field is “Enabled.”...
Page 59: Video Mode
2-22 Setup and Operation Typematic Rate Delay The Typematic Rate Delay field controls how long it takes for the keyboard to auto-repeat function to start when a keyboard key is held down. The delay times are as follows. 250 msec (default) 500 msec 750 msec 1000 msec...
Page 60: Advanced Menu
Setup and Operation 2-23 Advanced Menu Selecting “Advanced” from the menu bar on the Main Menu displays a menu with the following options. Click on a topic for a description of the Advanced Menu options. Processor Type Processor Speed Cache Size Peripheral Configuration Advanced Chipset Configuration Plug and Play Configuration...
Page 61 2-24 Setup and Operation The Peripheral Configuration Mode fields control whether the onboard resources are manually or automatically setup. The options are as follows. Auto (default) automatically configures the IDE devices, diskette drive, serial ports, and parallel port during power up. Manual provides the following options.
Page 62: Advanced Chipset Submenu
Setup and Operation 2-25 Parallel Port Mode The Parallel Port Mode field options are as follows. Compatible sets the parallel port to the standard AT compatibility. Bi-directional (default) sets the parallel port to input/output mode only. sets the parallel port to the Enhanced Capabilities Port (ECP) mode. sets the parallel port to the Enhanced Parallel Port (EPP) mode.
Page 63 2-26 Setup and Operation This “Disabled” setting should not be changed unless you are using an ISA board which has memory greater than 64K, needs to be accessed by the CPU, and you are not using the Plug and Play run-time utilities. The following choices are available. Disabled (default) 1 MB ISA LFB Base Address...
Page 64: Plug And Play Configuration
Setup and Operation 2-27 Banks 0 and 1 SIMM Detected These fields cannot be entered, it is an information field only. These fields displays either “Fast Page Mode,” “EDO Mode,” or “None installed” depending upon what the BIOS detects. Plug and Play Configuration When the cursor is placed in the Plug and Play Configuration field, you can select it by pressing Enter.
Page 65 2-28 Setup and Operation 48 KB 64 KB 80 KB 96 KB NOTE: If a value of 96 KB is selected, then “ ” the ISA Shared Memory Base Address field can only be set to C8000h; if 80 KB, then a value “...
Page 66: Security Menu
Setup and Operation 2-29 Security Menu There are two types of passwords available: “User Password” and “Administrative Password”. The user passwords can be used to access the Setup Utility, the keyboard upon initial boot and the keyboard when used in conjunction with the Security Hot Key. The Administrative Password is used to control access to the Setup Utility.
Page 67 2-30 Setup and Operation The Security Submenu lets you check or change the following password parameters. NOTE: If neither the User or Administrative Password is Enabled, the Unattended Start and “ ” Security Hot Key fields are not displayed. User Password This field allows you to enable a user level password during POST and to enter Setup.
Page 68: Exit Menu
Setup and Operation 2-31 Enabled completely boots the system (including running CONFIG.SYS and AUTOEXEC.BAT), then locks the keyboard. The User Password must be entered to unlock it. The BIOS does not provide any prompt string. Security Hot Key (CTRL-ALT-) The Security Hot Key field is used to lock the keyboard when you step away from the system.
Page 69: Discard 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 70: Nec Bulletin Board Service
2-33 NEC Bulletin Board Service If you have access to a modem, the NEC Bulletin Board Service (BBS) can be used to provides the latest BIOS information. The BBS allows you to download files (ICU, video drivers, printer drivers, BIOS updates, etc.). The BBS can also be accessed through the CompuServe online service.
Page 71: Using The Bios Update Utility
2-34 Setup and Operation After completing downloading of the file, log off the BBS as follows. Press Enter (to continue). Press (command for Goodbye/Hangup). Press Enter Using the BIOS Update Utility The system BIOS resides on a flash component. You can upgrade a flash BIOS through software, without taking the system apart or replacing the flash component.
Page 72: Section 3 Option Installation
Section 3 Option Installation This section provides instructions for installing the following options: expansion boards SIMM upgrade processor upgrade video upgrade data storage devices external options. All options require that the system cover be removed. Procedures for removing the cover are included in this section.
Page 73: Optional Hardware
When disconnecting a cable, always pull on the cable connector or strain-relief loop, not on the cable. Optional Hardware The system supports a variety of NEC and industry-standard options. Many optional components are available for customizing the computer. The following information describes the hardware that the system can accommodate.
Page 74: Removing The System Unit Side Panel
Option Installation Monitors The system supports the connection of a VGA-compatible monitor, such as MultiSync XE and XP series monitors, and a resolution (dependent on the monitor) of up to 1600 by 1200 with 256 colors, 1280 by 1024 with 256 colors, 1024 by 768 with 64,000 colors, 800 by 600 with 64,000 colors, or 800 by 600 with 16.8 million colors.
Page 75: Removing The Side Panel
Option Installation Removing the Side Panel WARNING: Before removing the system unit side panel, 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 76: Replacing The Side Panel
Option Installation From the rear of the system, position one hand on the protruding handle and the other hand under the side panel and slide the panel toward the rear about one inch. Lift the side panel away from the system unit. To replace the side panel, see the following procedure “Replacing the Side Panel.”...
Page 77: Expansion Boards
Option Installation All options require that the system cover be removed. Procedures for removing the cover are included in this section. Use the figure to locate the sockets and connectors for system board upgrades. Bank 0 Bank 1 Processor Socket SIMM Sockets SIMM Sockets Figure 3-2 System Board Upgrade Sockets and Connectors...
Page 78: Slot Locations
Option Installation Slot Locations The system has six expansion board slots: three PCI slots two ISA slots one shared PCI/ISA slot. PCI expansion boards run at the system's processor 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 which boosts system performance.
Page 79: Removing A Slot Cover
Option Installation Remove the screw securing an expansion slot cover and remove the cover. Save the screw for installing the expansion board. Store the slot cover in case you choose to remove the expansion board in the future. Figure 3-4 Removing a Slot Cover Hold the board by its edges and insert it into the expansion slot.
Page 80: Expansion Board Removal
Option Installation Attach any signal cables required by the expansion board. Replace the system unit side panel (see “Replacing the Side Panel” in this section). Expansion Board Removal Remove the system unit side panel (see “Removing the Side Panel” in this section).
Page 81: Checking The Memory In The System
3-10 Option Installation Checking the Memory in the System Use the following procedure to: check the memory installed in the system to determine the SIMM configuration you need to increase the memory to identify the correct sockets for SIMM installation. Locate the four SIMM sockets on the system board (see Figure 3-2).
Page 82: Simm Removal
Option Installation 3-11 SIMM Removal If the SIMM configuration requires the removal of a SIMM, remove the SIMM as follows. CAUTION: Reduce static discharge by touching the system's metal chassis. 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.
Page 83: Processor Upgrade
3-12 Option Installation Tilt the SIMM towards the locking tabs using equal pressure at the ends of the SIMM until it locks into the socket. Clip Notched End of SIMM Figure 3-7 Inserting the SIMM Replace any cables or boards that you may have removed during this procedure. Replace the system unit side panel (see “Replacing the Side Panel”).
Page 84: Processor Removal
Option Installation 3-13 When upgrading the processor, you must first remove the processor currently installed in the system (see “Processor Removal”). Once removed, you can then install the upgrade processor, see “Processor Installation.” Processor Removal To remove the installed processor on the system board, proceed as follows. Remove the system unit side panel (see “Removing the Side Panel”).
Page 85: Processor Installation
3-14 Option Installation Processor Installation Install the processor into the system board’s processor socket as follows. Remove the processor currently in the system (see the previous procedure “Processor Removal”). CAUTION: Before picking up the processor, reduce static discharge by touching the metal frame of the system unit.
Page 86: Video Upgrade
Option Installation 3-15 Video Upgrade The video board comes with 2 MB of video Window RAM (WRAM). The video board supports an optional 2 MB video WRAM for a total of 4 MB of video WRAM. Network configurations come with 4 MB of video WRAM and is upgradeable to 8 MB. Install the upgrade module into the video board as follows.
Page 87: Data Storage Devices
3-16 Option Installation Data Storage Devices The following sections provides information about installing storage devices in the system. Device Support Device Slots Device Preparation Device Cables Storage Device Installation Device Support The system board in the computer supports the following peripheral 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 88: Device Preparation
Option Installation 3-17 Figure 3-11 shows the device slot locations. 5 1/4-Inch Accessible Slots 3 1/2-Inch Accessible Slot 3 1/2-Inch Internal Hard Disk Slot (behind panel) Figure 3-11 Device Slot Locations Device Preparation Before you install a storage device in the system, follow any preinstallation instructions that come with the device.
Page 89: Device Cables
3-18 Option Installation Device Cables The following optional storage devices cables are included with the system: Diskette Drive Signal Cable IDE Signal Cables System Power Cables. NOTE: The system unit does not come with any SCSI cables. When adding a SCSI device (internally or externally) a SCSI cable must be purchased for the device as well.
Page 90: Diskette Drive Signal Cable
Option Installation 3-19 The colored edge of the cable goes to pin 1 on the cable connector. Align the red edge of the cable with pin 1 (the notched end) on the drive connector. The following figure shows the standard three-connector diskette drive signal cable. Attaches to 1.44-MB Diskette Drive Attaches to 1.2-MB...
Page 91: Device Cabling
3-20 Option Installation System Power Cables Power cables come from the power supply and are attached to the standard storage devices. System power cables vary in length and provide connector sizes to accommodate a variety of supported storage configurations. Power cable connectors are keyed to fit only in the correct position. Large Power Cable Connector Small Power...
Page 92: Cabling An Ide Device
Option Installation 3-21 Cabling an IDE Device Connect the appropriate connector on the IDE signal cable to the IDE connector on the IDE device. Align the colored edge of the cable with the pin 1 side of the device connector. NOTE: For best performance, connect the standard and optional hard disk drive on the same IDE signal cable (using the primary IDE...
Page 93: Cabling A Diskette Drive
3-22 Option Installation Cabling a Diskette Drive Connect the appropriate connector on the Diskette Drive Signal Cable to the signal connector on the diskette drive. Align the colored edge of the cable with the pin 1 side of the device connector. Locate an available power connector coming from the power supply (see “System Power Cables”).
Page 94: Removing The 3 1/2-Inch Drive Bracket
Option Installation 3-23 Remove the screw securing the drive bracket to the 5 1/4-inch device cage and slide the bracket toward the rear of the system (see the following figure). Device Cage Drive Bracket Figure 3-18 Removing the 3 1/2-Inch Drive Bracket Continue to “Installing the 3 1/2-Inch Drive.”...
Page 95: Replacing The 3 1/2-Inch Drive Bracket
3-24 Option Installation Secure the drive to the bracket with the four screws that come with the drive (two screws on each side). Figure 3-19 Securing a 3 1/2-Inch Drive Continue to “Replacing the 3 1/2-Inch Drive Bracket.” Connect the drive cables to the new drive (see “Cabling an IDE Device”). Reconnect any hard disk drive cables you labeled and removed earlier.
Page 96: Removing The Front Panel
Option Installation 3-25 Replace the bracket screw you removed earlier to secure the bracket in place. Device Cage Drive Bracket Figure 3-20 Securing the 3 1/2-Inch Drive Bracket Continue at step of the “Installing the 3 1/2-Inch Drive” procedure. Removing the Front Panel Remove the front panel only if you are installing a 5 1/4-inch device.
Page 97: Removing The Front Panel
3-26 Option Installation Release the two front panel tabs on the lower left side of the front panel. Tabs Figure 3-21 Removing the Front Panel Disconnect the LED and IR cables on the front panel from the system board. Pull the left side out enough to clear the power, reset, and suspend buttons. When the buttons have been cleared, slide the right side of the front panel out from the system unit.
Page 98: Installing The 5 1/4-Inch Device
Option Installation 3-27 Remove the metal slot cover from the selected slot by releasing the slot cover tab on the front of the system. Store the slot cover in case you choose to remove the device in the future. Slot Cover Blank Panel Tabs Slot Cover...
Page 99: Attaching The Device Rails
3-28 Option Installation NOTE: The device rails are labeled A and B and are not interchangeable. If the rails prevent the device from aligning properly in the system, reattach the rails on the opposite sides of the device. If you are installing an accessible device (diskette drive, tape drive, or CD-ROM reader), attach the rails to the device so that the front of the device extends beyond the chassis and is even with the blank panels on the front of the system.
Page 100: Replacing The Front Panel
Option Installation 3-29 Connect the device cables (see “Device Cabling”). Replace the system unit front panel (see “Replacing the Front Panel”). Replace the system unit cover (see “Replacing the Side Panel”). NOTE: If you installed a 1.2-MB diskette drive, remove the protective cardboard insert from the drive.
Page 101: Adding External Options
3-30 Option Installation Replace the front panel screw removed earlier to secure the front panel. Continue at step of the “Installing the 5 1/4-Inch Device” procedure. ADDING EXTERNAL OPTIONS The following subsections provide information about attaching peripherals to the external connectors on the system unit.
Page 102: Serial Devices
Option Installation 3-31 Serial Devices NOTE: Before connecting a serial device to the system, be sure that you have set up the serial device correctly. Follow the setup instructions that come with the option. Make sure the power to the system unit and serial device are off. Connect one end of the serial cable to one of the two serial ports on the rear of the computer.
Page 103: Connecting A Scsi Cable
3-32 Option Installation Connect the other end to the SCSI device. NOTE: After powering on the system and SCSI device use the Adaptec software to set the SCSI ID and remove the termination on the SCSI adapter board. SCSI Connector Figure 3-28 Connecting a SCSI Cable...
Page 104: Section 4 Maintenance And Troubleshooting
Maintenance and Troubleshooting This section provides information on maintaining and troubleshooting the PowerMate Pro150 Series computers. Also included in this section are NEC service telephone numbers (Table 4-1) and procedures for replacing the CMOS battery. Table 4-1 NEC Service and Information Telephone Numbers...
Page 105: Maintenance
Maintenance and Troubleshooting MAINTENANCE This subsection contains general information for cleaning and checking the system, key- board, and monitor. The system, keyboard, and monitor require cleaning and checking at least once a year, and more often if operating in a dusty environment. No other scheduled maintenance or lubrica- tion is required.
Page 106: Keyboard Cleaning
Maintenance and Troubleshooting Keyboard Cleaning When necessary, inspect and clean the inside of the keyboard as follows: Remove the six screws holding the keyboard enclosure together (see Figure 4-1). NOTE: The keyboard and cable together are considered a whole-unit, field-replaceable assembly.
Page 107: 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 108: Troubleshooting
If disassembly is required, see Section 5. Connector pin assignments are given in Appendix A. Switch settings are given in Appendix B. Error Messages Messages may appear when running NEC utilities. Table 4-2 describes possible system error messages. Table 4-3 describes possible PCI error messages.
Page 109 Maintenance and Troubleshooting Table 4-2 System Error Messages Message Description Gate - A20 Error Gate A20 on the keyboard controller is not working. Call for service. Invalid Boot Diskette The BIOS can read the disk in diskette drive A:, but cannot boot the system.
Page 110: Pci Error Messages
Maintenance and Troubleshooting Table 4-3 PCI Error Messages Message Description Bad PnP Serial ID Checksum The Serial ID checksum of a Plug and Play card was invalid. Floppy Disk Controller The diskette drive controller has requested a resource that is Resource Conflict already in use.
Page 111: Diagnosing And Solving Problems
Maintenance and Troubleshooting Diagnosing and Solving Problems One beep indicates that the system has completed its POST test. If intermittent beeping occurs, power off the system and try again. If the beeping persists, see Table 4-4. The table summarizes problems that may develop during system operation and lists (in sequential order) suggested corrective actions.
Page 112 Maintenance and Troubleshooting Table 4-4 Problems and Solutions Problem Symptom Solution Operating system Intermittent beeping at 1. Check system configuration and switch does not boot power-on. Computer beeps settings (refer to Appendix B). more than once and is unable to complete boot-up. 2.
Page 113 4-10 Maintenance and Troubleshooting Table 4-4 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 114 Maintenance and Troubleshooting 4-11 Table 4-4 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 115: Beep Codes
4-12 Maintenance and Troubleshooting Table 4-4 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 116: Cmos Battery Replacement
Maintenance and Troubleshooting 4-13 Table 4-5 Diagnostic Beep Codes Message Beeps Description of Failure Processor Exception Interrupt The CPU generated an exception interrupt. Error Display Memory Read/Write The system’s video adapter is either missing or its Error memory is faulty. This is not a fatal error. ROM Checksum Error ROM checksum value does not match the value encoded in the BIOS.
Page 117: Battery Removal
4-14 Maintenance and Troubleshooting Carefully lift the battery from the socket tabs and out of the socket. Battery Tabs Tabs Figure 4-4 Battery Removal With the positive (+) side facing up, press the new battery into the socket. Replace the system unit cover. Connect external peripherals and power cables.
Page 118: Disassembly And Reassembly
Section 5 Repair DISASSEMBLY AND REASSEMBLY This section contains step-by-step disassembly procedures for the system unit. Reassembly is the reverse of disassembly. Each procedure is supported by a simplified disassembly illustration to facilitate removal. The detailed exploded-view diagram and parts lists for the systems are included at the end of this section.
Page 119: Side Panel Removal
Repair When disassembling the system unit, follow these general rules. Disconnect all peripherals. When handling boards or chips, touch the system unit frame to discharge static. Do not disassemble parts other than those specified in the procedure. All screws are Phillips-head, unless otherwise specified. Label all removed connectors.
Page 120: Side Panel Removal
Repair Remove the two side panel screws from the rear of the system unit (see Figure 5-1). If you have installed a padlock on the system, unlock the padlock and remove it. From the rear of the system, position one hand on the protruding handle and the other hand under the side panel and slide the panel toward the rear about one inch.
Page 121: Expansion Board Removal
Repair Expansion Board Removal Remove the sound/fax/modem board and any other installed expansion board(s) per the following steps. Remove the system unit side panel (see “Side Panel Removal” in this section). If you have any cables connected to the board that you need to remove, label the connectors before you remove them.
Page 122: Simm Removal
Repair SIMM Removal Remove any optional SIMM sticks from the system board as follows. Remove the side panel and any full size expansion boards as previously described. Open the clips at each end of the SIMM connector (see Figure 5-3). Tilt the SIMM forward, so that the SIMM can be removed from the socket.
Page 123: Front Panel Assembly Removal
Repair Front Panel Assembly Removal Remove the front panel from the system unit as follows. Remove the system unit side panel (see “Side Panel Removal”). Remove the front panel screw securing the panel to the system unit. Release the two front panel tabs on the lower left side of the front panel. Tabs Figure 5-4 Front Panel Removal Disconnect the LED and IR cables on the front panel from the system board.
Page 124: 1/2-Inch Drive Bracket Removal
Repair Press in on the tab and remove the metal slot cover from the selected slot on the front of the system. Store the slot cover in case you choose to use it in the future. Slot Cover Blank Panel Tabs Slot Cover Figure 5-5 Blank Panel Tabs...
Page 125: 1/2-Inch Diskette Drive Removal
Repair 3 1/2-inch Diskette Drive Removal Remove the 3 1/2-inch diskette drive as follows. Remove the side panel as previously described (see “Side Panel Removal”). Unplug the diskette drive power cable and signal cable from the diskette drive (see Figure 5-7). NOTE: When reinstalling the diskette drive, note that all power cables are keyed to fit only in the correct position.
Page 126: 1/2-Inch Hard Disk Drive Removal
Repair Slide the 3 1/2-inch diskette drive out of the bracket. Figure 5-8 Diskette Drive Bracket Screws 3 1/2-inch Hard Disk Drive Removal Remove the 3 1/2-inch hard disk drive as follows. Remove the side panel as previously described. Unplug the hard disk drive power and signal cables from the hard disk drive (see Figure 5-9).
Page 127: 1/4-Inch Device Removal
5-10 Repair Remove the 3 1/2-inch drive bracket as previously described. Remove the four screws securing the 3 1/2-inch drive to the bracket. Slide the 3 1/2-inch drive out of the bracket (see Figure 5-10). Figure 5-10 Removing the 3 1/2-Inch Drive 5 1/4-Inch Device Removal Remove a 5 1/4-inch device (CD-ROM reader or other device) from the 5 1/4-inch device cage as follows.
Page 128: Card Guide/Fan Bracket Removal
Repair 5-11 Align the rails with guides in the selected slot. Push the device into the slot until the rails lock in place. Device Rail Tabs Figure 5-11 Inserting the Device Remove the rails and ground clips from the sides of the device by removing the four screws shown in Figure 5-12.
Page 129: Fan Removal
5-12 Repair Remove the side panel and expansion boards as previously described. Unplug the fan from the fan connector (J20) on the system board. (See Appendix A, Connector Pin Assignments, for the system board connector locations.) Press on the tab that secures the card guide/fan bracket assembly to the chassis (see Figure 5-13).
Page 130: Speaker Assembly Removal
Repair 5-13 Speaker Assembly Removal Remove the speaker per Figure 5-15 and the following steps. Remove the side panel, expansion boards, and card guide/fan bracket as previously described. Unplug the speaker from its connector on the system board. (See Appendix A, Connector Pin Assignments, for the system board connector locations.) Slide the speaker out from the four speaker tabs.
Page 131: Power Supply Removal
5-14 Repair Power Supply Removal Remove the power supply as follows. Remove the side panel as previously described (see “Side Panel Removal”). Remove the internal drive cage as previously described. Unplug the two power cables attached to the system board's connectors. See Appendix A for connector locations.
Page 132: System Board Removal
Repair 5-15 System Board Removal Remove the system board per the following steps. Remove the following components as previously described: side panel expansion slot boards 3 1/2-inch drive bracket SIMMs. Remove and label all cables connected to the system board. Appendix A provides the connector identifiers and pin assignments for each connector.
Page 133: Illustrated Parts Breakdown
5-16 Repair ILLUSTRATED PARTS BREAKDOWN This subsection contains the illustrated parts breakdown (IPB) and NEC part numbers for the PowerMate Pro150 Series computer. Table 5-2 lists the field-replaceable parts for the computer. Figure 5-18 is the illustrated parts breakdown. NOTE: In the U.S., call 1(800) 632-4525 to order NEC spare parts.
Page 134 3 1/2-Inch x 1-Inch, 1.6 GB Hard Disk 158-050395-349 3 1/2-Inch x 1-Inch, 1.44-MB Diskette Drive 158-050912-000 3 1/2-Inch Drive Bracket 158-050961-000 5 1/4-Inch Blank Panel Cover (plastic) 158-030833-000 Logo Panel (PowerMate Pro150) 158-030804-007 NEC Mouse (PS/2-compatible) 158-050789-000 Keyboard 158-050890-000 Power Cord 808-857649-101A...
Page 135: Powermate Pro150 Series Illustrated Parts Breakdown
5-18 Repair Figure 5-18 PowerMate Pro150 Series Illustrated Parts Breakdown* ____________ * This data was prepared January 1996. For an up-to-date listing of spare parts, please call FastFacts (800) 366-0476 and order document number 42181426.
Page 136: Powermate Pro150 Series Memory Options
Repair 5-19 Table 5-3 lists PowerMate Pro150 Series memory options. Table 5-3 PowerMate Pro150 Series Memory Options Description Part Number 8-MB SIMM Upgrade Kit (2 MB x 32-bit)* OP-410-16601 16-MB SIMM Upgrade Kit (4 MB x 32-bit)* OP-410-16602 32-MB SIMM Upgrade Kit (8 MB x 32-bit)* OP-410-16603 * All SIMM kits have tin edge connectors.
Page 137 Appendix A Connector Pin Assignments This appendix describes the system board connector pin assignments. Table A-1 list the system board connectors and provides the page number where the pin assignments defined. Table A-1 System Board Connectors Description Page Number Parallel Interface Connector Serial Interface Connectors (COM1/COM2) Keyboard and Mouse Connectors Power Supply Connector...
Page 138: Parallel Interface Connector
Connector Pin Assignments PARALLEL INTERFACE CONNECTOR The following figure shows the parallel interface connector on the system board. Table A-2 provides the pin assignments. Figure A-1 Parallel Interface Connector Table A-2 Parallel Interface Pin Assignments Signal Name Signal Name Strobe Auto Feed Data Bit 0 Fault...
Page 139: Serial Interface Connectors
Connector Pin Assignments SERIAL INTERFACE CONNECTORS The following figure shows the serial interface connector on the system board. Table A-3 provides the pin assignments. Serial Port 1 Serial Port 2 Figure A-2 Serial Interface Connectors Table A-3 Serial Interface Pin Assignments Signal Name Serial In- Serial Out-...
Page 140: Keyboard And Mouse Connectors
Connector Pin Assignments KEYBOARD AND MOUSE CONNECTORS The following figure shows the keyboard and mouse connectors on the system board. The keyboard and mouse are PS/2-style connectors and can be plugged into either connector. The system unit will detect their presence at power on. Table A-3 provides the pin assignments.
Page 141: Power Supply Connector
Connector Pin Assignments POWER SUPPLY CONNECTOR The following figure shows the power connector on the system board. Table A-5 provides the pin assignments. Figure A-4 Power Connector Table A-5 Power Connector Pin Assignments Signal Name Signal Name +3.3Vdc +3.3Vdc +3.3Vdc -12Vdc Ground Ground...
Page 142: Diskette Drive Connector
Connector Pin Assignments DISKETTE DRIVE CONNECTOR The following figure shows the diskette drive connector on the system board. Table A-6 provides the pin assignments. Figure A-5 Diskette Drive Interface Connector Table A-6 Diskette Drive Pin Assignments Signal Name Signal Name Ground DENSEL Ground...
Page 143: Ide Connectors
Connector Pin Assignments IDE CONNECTORS The following figure shows the IDE interface connectors on the system board. The signals in parentheses are for the secondary connector. Table A-7 provides the pin assignments. Secondary Primary Figure A-6 IDE Interface Connector Table A-7 IDE Interface Pin Assignments Signal Name Signal Name Reset IDE...
Page 144: Hard Drive Led Connector
Connector Pin Assignments HARD DRIVE LED CONNECTOR The following figure shows the hard disk LED connector on the system board. Table A-8 provides the pin assignments. SPKR RST PWRLED HDLED INFRARED Figure A-7 Hard Disk LED Connector Table A-8 Hard Disk LED Pin Assignments Signal Name +5V (white) HD ACTIVE...
Page 145: Reset Button Connector
Connector Pin Assignments Table A-9 Power LED Pin Assignments Signal Name LED_PWR (green) Ground (blue) RESET BUTTON CONNECTOR The following figure shows the reset button connector on the system board. Table A-10 provides the pin assignments. SPKR RST PWRLED HDLED INFRARED Figure A-9 Reset Button Connector Table A-10 Reset Pin Assignments Signal Name...
Page 146: Infrared Connector
A-10 Connector Pin Assignments INFRARED CONNECTOR The following figure shows the infrared (IR) connector on the system board. Table A-12 provides the pin assignments. SPKR RST PWRLED HDLED INFRARED Figure A-10 Infrared Connector Table A-11 Infrared Pin Assignments Signal Name IRTX Ground IRRX...
Page 147: Speaker Connector
Connector Pin Assignments A-11 Table A-12 Fan Pin Assignments Signal Name Ground Fast fan (+12V) Ground Ground Slow fan (<12V) Ground SPEAKER CONNECTOR The following figure shows the speaker connector on the system board. Table A-13 provides the pin assignments. SPKR RST PWRLED HDLED INFRARED...
Page 148: Isa Connectors
A-12 Connector Pin Assignments ISA CONNECTORS The following figure shows the ISA expansion board connectors on the system board. Table A-14 provides the pin assignments. ISA Connectors Figure A-13 ISA Expansion Board Connectors...
Page 149 Connector Pin Assignments A-13 Table A-14 ISA Bus Pin Assignments Signal Signal Signal Signal IOCHK- DACK2- RSTDRV BALE IRQ9 -5 V DRQ2 -12 V 0WS- MEMCS16- SBHE- +12 V IOCS16- LA23 IOCHRDY IRQ10 LA22 SMEMW- IRQ11 LA21 SMEMR- SA19 IRQ12 LA20 IOW- SA18...
Page 150: Pci Connectors
A-14 Connector Pin Assignments PCI CONNECTORS The following figure shows the PCI expansion board connectors on the system board. Table A-15 provides the pin assignments. PCI Connectors Figure A-14 PCI Expansion Board Connectors...
Page 151 Connector Pin Assignments A-15 Table A-15 PCI Bus Pin Assignments Signal Signal Signal Signal -12 V AD16 AD17 +12 V No Connect 3.3 V CBE2- No Connect B3 FRAME- No Connect B4 No Connect IRDY- TRDY- 3.3 V PCIINT3- DEVSEL- PCIINT1- PCIINT2- STOP-...
Page 152 A-16 Connector Pin Assignments...
Page 153: Appendix B System Board Settings
Appendix B System Board Settings The system board in your computer contains a 27-pin block of configuration jumpers in a 3 x 9 array. Jumpers are set correctly at the factory for your configuration. Conditions that require changing the switch settings are as follows. Change the system operating speed Clear the User or Administrator password Reset the CMOS RAM settings to the default values...
Page 154 System Board Settings Remove the system unit side panel (see “Removing the Side Panel” in Section 3). Locate the jumper bank on the system board (see Figure B-1). Change the switch setting to the appropriate position. Replace the system unit side panel (see Replacing the Side Panel in Section 3). The Figure B-1 shows the jumper locations on the system board.
Page 155: Processor Jumpers
System Board Settings Processor Jumpers These jumpers set the CPU, PCI, and ISA bus frequencies and the clock ratio. The jumpers should be changed only when you upgrade the CPU. 150 MHz CPU Bus frequency = 60.14 MHz (Default) Clock ratio = 5/2 PCI frequency = 30 MHz ISA frequency = 7.51 MHz DOWN...
Page 156: Cmos Ram Jumper
System Board Settings Move the jumper to the position shown in the following figure. Clear password DOWN Figure B-4 Clear Password Setting Turn on power and allow the system to boot. Turn off power. Move the jumper to the position shown below to restore normal operation. Normal mode (Default) DOWN...
Page 157: Setup Program Jumper
System Board Settings Turn off and unplug the system and any external options. Remove the system unit side panel (see “Removing the Side Panel” in Section 3). Locate the jumper bank on the system board (see Figure B-1). Move the jumper to the position shown in the following figure. Reset CMOS settings to default CMOS RAM values.
Page 158: Recovery Boot Enable Jumper
System Board Settings Move the jumper to the position shown in the following figure. Setup program access disabled. DOWN Figure B-8 Disable Setup Setting Replace the system cover and turn the power back on. To enable access to the setup program, move the jumper to the position shown in the following figure.
Page 159: Bios Recovery Setting
System Board Settings Move the jumper to the position shown in the following figure. Recovery boot enable DOWN Figure B-10 BIOS Recovery Setting Install the bootable upgrade diskette into diskette drive A. Reboot the system. Listen to the speaker for the following sequence of beeps: After rebooting the system, the speaker beeps once.
Page 160 System Board Settings...
Page 161 Index Connectors, A-1 diskette drive, A-6 fan, A-10 Advanced chipset configuration, 2-25 hard disk LED, A-8 Advanced menu, 2-23 IDE, A-7 Audio features, 1-14 infrared, A-10 ISA, A-12 keyboard, A-4 Battery, 4-13 mouse, A-4 Baud rate, 1-12 parallel, A-2 Beep codes, 4-12 PCI, A-14 BIOS, 1-5, 2-32 power LED, A-8...
Page 162 Index-2 drive bracket, 5-7 expansion boards, 5-4 fan, 5-12 connector, A-10 front panel, 5-6 removal, 5-12 power supply, 5-14 Fast page mode, 2-27 side panel, 5-2 Ferrite core, 2-3 SIMM, 5-5 Flash utility, 2-32 speaker assembly, 5-13 Front panel system board, 5-15 removal, 3-25, 5-6 Diskette drive, 1-16 replacement, 3-29...
Page 163 Multimedia components Plug and Play, 1-9, 2-27 microphone, 1-19 POST, 2-7, 2-14 speakers, 1-19 Power cables, 3-20 LED connector, A-8 NEC telephone numbers, 4-1 Power supply, 1-19 Network board, 1-16 connector, A-5 drivers, 1-2 removal, 5-14 LEDs, 1-16 Precautions, 3-1...
Page 164 Index-4 Printer peripherals, 2-23 installation, 3-30 plug and play, 2-27 Processor, 1-4, 2-23 processor, 2-23 installation, 3-14 security, 2-29 jumpers, B-3 start, 2-14 removal, 3-13 typing, 2-21 upgrade, 3-3, 3-12 Side panel, 5-2 removal, 3-4 replacement, 3-5 SIMMs, 1-7 Reassembly, 5-1 installation, 3-11 Recovery removal, 3-11, 5-5...
Page 165 Index-5 beep codes, 4-12 error messages, 4-5 problems and solutions, 4-8 Unpacking, 2-1 Utilities diskette, 1-2 setup, 2-13 Video board, 1-13 drivers, 1-1, 2-11 mode, 2-22 playback, 1-14 resolution, 1-13 support interface, 1-13 upgrade, 3-15 Voltage select switch, 2-2 Windows NT installation, 2-7 MPEG, 2-13 sound, 2-12...
Page 166 (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 167 BATTERY REPLACEMENT A lithium battery in your computer maintains system configuration information. In the event that the battery fails to maintain system configuration information, NEC recommends that you replace the battery. See Chapter 4 for battery replacement information. WARNING: There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer.

NEC PowerMate Pro150 Series Service Manual

Section 1 Technical Information

List of Figures

List of Tables

Section 2 Setup and Operation

Section 3 Option Installation

Section 4 Maintenance and Troubleshooting

Section 5 Repair

Appendix A Connector Pin Assignments

Appendix B System Board Settings

Quick Links

Troubleshooting

Related Manuals for NEC PowerMate Pro150 Series

Summary of Contents for NEC PowerMate Pro150 Series

Table of Contents