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 Page Preface ..........................xi Abbreviations ........................xiii Section 1 Technical Information Desktop System Unit...................... 1-1 Minitower System Unit....................1-2 System Board ......................1-2 Processor ........................ 1-4 Secondary Cache ....................1-5 Flash ROM ......................1-5 Power Management ....................1-6 I/O Addressing......................1-7 System Memory......................
Page 3 Contents How to Use Setup ...................... 2-9 Standard CMOS Setup..................2-10 Advanced CMOS Setup ..................2-11 Peripheral Management Setup................2-14 Configure With BIOS Defaults................2-15 Configure With Power-On Defaults............... 2-15 Change Password....................2-15 Write to CMOS and Exit..................2-16 Do Not Write to CMOS and Exit................2-16 System Board Jumpers ....................
Page 4 Device Troubleshooting.................... 3-39 NEC SVGA Monitor....................3-40 Connecting the Monitor.................... 3-41 Front Control Panel ....................3-43 Rear Control Panel ....................3-44 NEC SVGA Monitor Troubleshooting..............3-45 Section 4 Maintenance and Troubleshooting Maintenance ........................4-2 Routine Checks ......................4-2 System Unit........................ 4-2 Keyboard........................
Page 5 Contents 5 1/4-Inch Device Cage Removal................5-13 Power Supply Removal..................... 5-14 System Board Removal..................... 5-15 Illustrated Parts Breakdown..................5-17 Section 6 Minitower Repair Disassembly and Reassembly ..................6-1 Top Cover Removal ....................6-3 Bottom Cover Removal ....................6-4 Expansion Board Removal..................6-5 Front Panel Assembly Removal...................
Page 6 System Unit Specifications..................... B-1 Power Supply Specifications..................B-3 Diskette Drive Specifications ..................B-4 Hard Disk Specifications....................B-5 NEC SVGA Monitor Specifications................B-6 List of Figures PowerMate Desktop System Unit Features............1-1 PowerMate Minitower System Unit Features ............1-2 Desktop Voltage Selector Switch................ 2-2 Desktop Peripheral Connections................
Page 7 Monitor Connections ..................3-42 3-34 NEC SVGA Monitor Front Control Panel............3-43 3-35 NEC SVGA Monitor Rear Control Panel ............3-44 Removing the Keyboard Enclosure..............4-3 Removing the Mouse Ball Cover................. 4-4 Top Cover Screws ....................5-3 Removing the Top Cover ..................5-3 Expansion Slot Screw ..................
Page 8 Desktop SIMM Configurations ................. 3-15 Minitower SIMM Configurations ..............3-16 SIMM Upgrade Problems and Solutions............3-18 Video DRAM Chip Problems and Solutions ............3-20 Optional 5 1/4-Inch Device Problems and Solutions .......... 3-39 NEC SVGA Monitor Problems and Solutions ........... 3-45...
Page 9 Contents NEC Service and Information Telephone Numbers..........4-1 System Error Messages..................4-5 ISA NMI Error Messages ................... 4-7 Problems and Solutions ..................4-7 Diagnostic Beep Codes ..................4-11 PowerMate P60 Desktop Disassembly Sequence..........5-1 Connector Identifiers..................5-16 PowerMate P60 Desktop Field-Replaceable Parts List........5-17 PowerMate P60 Desktop Options ..............
Page 10: Preface
Section 4, Maintenance and Troubleshooting, includes recommended maintenance information, a lists possible problem and solutions, and beep codes for computer. A procedure is provided for logging onto the NEC Bulletin Board and obtaining the latest the Flash ROM BIOS. A CMOS recovery mode procedure is also included.
Page 11: Abbreviations
xiii Abbreviations ampere DMAC DMA controller alternating current disk operating system advanced technology DRAM dynamic RAM (IBM PC) data terminal equipment Bulletin Board System error checking and correction binary-coded decimal Enhanced Graphics Adapter BIOS Customized Utility EPROM erasable and programmable BIOS basic input/output system binary digit...
Page 12 Abbreviations kilo (1024) quad flat pack kilo (1000) random-access memory kilobyte RAMDAC RAM digital-to-analog kilogram row address strobe kilohertz red green blue pound RGBI red green blue intensity light-emitting diode read-only memory least-significant bit revolutions per minute large-scale integration read mega real-time clock milliamps...
Page 13: Section 1 Technical Information
Section 1 Technical Information The PowerMate Series includes the PowerMate P60D and PowerMate P60M. The information in this manual applies to both models except where indicated. Models differ primarily in the chassis. This section provides an overview of the PowerMate Series hardware. The basic hardware for the system includes a system unit, keyboard, and mouse.
Page 14: Minitower System Unit
Technical Information MINITOWER SYSTEM UNIT The minitower chassis provides an enclosure for the system board, power supply, five storage device slots, and five-expansion-slot ISA/PCI-bus backboard. The storage device slots accommodate a 3 1/2-inch diskette drive, two 3 1/2-inch hard disk drives (1-inch height), and three 5 1/4-inch storage devices (1.6-inch height).
Page 15 Technical Information 256-KB secondary cache Peripheral Component Interconnect (PCI) graphics controller and 32-bit PCI-bus supports 640 x 480 with 16.8 million colors (24-bit true color), 800 x 600 with 64 K colors 1024 x 768 resolution with 256 colors, and 1280 x 1024 resolution with 16 colors 1-MB (two 256K x 16) video dynamic RAM (DRAM), expandable to 2 MB two intelligent drive electronics (IDE) interface connectors...
Page 16: Processor
Technical Information Table Section 1-1 lists the major chips on the system board. See Section 2, Setup and Op- eration, for a description of the system board's jumpers. See Appendix A, Connector Pin Assignments, for a list of the system board connectors. Table Section 1-1 System Board Chips Chip Description...
Page 17: Secondary Cache
Technical Information Secondary Cache The 16-KB primary cache (8 KB data and 8 KB instruction) is integrated into the processor. The system board also provides 256 KB of secondary cache, external to the processor. Cache memory improves read performance by holding copies of code and data that are frequently requested from the system memory by the processor.
Page 18: Power Management
Technical Information Video BIOS is located between C0000h and C7FFFh. The system memory map in shown in Table Section 1-3. Table Section 1-3 System Memory Map Memory Space Size Function 000000-07FFFF 512 KB Conventional base memory 080000-09FBFF 127 KB Extended conventional base memory 09FC00-09FFFF 1 KB Extended BIOS Data (movable by QEMM and 386 max)
Page 19: I/O Addressing
Technical Information Blanks out the monitor Puts the video controller into sleep mode. The vertical sync clock and blank signals to the monitor are disabled. Forces the IDE devices into stand-by mode A suspend command is sent to the IDE devices which put the devices into a stand-by mode.
Page 20: System Memory
Technical Information Table Section 1-5 I/O Address Map Address (Hex) I/O Device Name 0376 Secondary IDE channel command port 0377 Secondary IDE channel status port 0378-037F Parallel port 1 03BC-03BF Parallel port 2 03C0-03CF Video Graphics Array (VGA) compare registers 03E8-03EF Serial port 3 03F0-03F5...
Page 21: Interrupt Controller
Technical Information The system board's four SIMM sockets are assigned as banks A and B. Each SIMM kit is inserted into a pair of sockets or bank. Bank A consist of sockets J28 and J27, and in the desktop version can only accommodate low profile (1-, 2-, and 4-MB) SIMM sticks. Bank B consist of sockets J25 and J26.
Page 22: Video Controller
1-10 Technical Information Video Controller The Cirrus Logic CLDG5434 PCI graphics controller combines powerful elements aimed at addressing the requirements of personal computer designs. State of the art techniques have been added for optimizing performance in computer graphic intensive applications and graphical user interfaces (GUI).
Page 23 Technical Information 1-11 Table Section 1-9 Video Resolutions and Frequencies Memory Resolution Required Color Video Clock (Hz) Horiz Sync (KHz) 800 x 600 1 MB 35.2 800 x 600 1 MB 37.9 800 x 600 1 MB 44.5 800 x 600 1 MB 48.0 800 x 600...
Page 24: Isa/Pci-Bus Backboard
1-12 Technical Information Table Section 1-9 Video Resolutions and Frequencies Memory Resolution Required Color Video Clock (Hz) Horiz Sync (KHz) 1280 x 1024 2 MB 64.0 1280 x 1024 2 MB 74.6 1280 x 1024 2 MB 81.1 (I) Interlaced. ISA/PCI-Bus Backboard The ISA/Peripheral Component Interconnect (PCI)-bus backboard provides ISA and PCI- bus expansion slots.
Page 25: Parallel Interface
Technical Information 1-13 Parallel Interface The system has a 25-pin parallel port on the system board. Specifications for this port conform to the IBM-PC standards. 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.
Page 26: Serial Interface
1-14 Technical Information Serial Interface The system has two standard serial ports (COM1 and COM2). The serial ports support the standard RS-232C interface (16550 compatible). I/O addresses and interrupt levels for the two channels are given in Table Section 1-13. The interrupt is selectable via Setup to either IRQ3 or IRQ4.
Page 27: Power Supply
Technical Information 1-15 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. Two connectors connect the power supply to the system board connector J12. A fan inside the power supply provides proper ventilation for the system.
Page 28: Section 2 Setup And Operation
Section 2 Setup and Operation This section provides information on hardware setup for PowerMate Series computers. Setup includes unpacking, cabling, and powering up the system. It also includes configuring the system with the system setup programs. Section 3 provides information for installing options.
Page 29: Desktop Setup
Setup and Operation Desktop Setup Set up the desktop systems by making the following connections. (See the following sub- section, Minitower Setup, if setting up a minitower computer). At the rear of the system, set the voltage selector switch to 115V or 230V and insert the power cord into the system power socket (see Figure Section 2-1).
Page 30: Desktop Peripheral Connections
Setup and Operation Connect the keyboard and mouse cables to the back of the system unit (see Figure 2-2). Connect the, monitor and any other peripherals to the rear panel (see Figure Sec- tion 2-2). Detailed monitor connections a given in Sections 3, Options. 15-Pin VGA Monitor Connector...
Page 31 Setup and Operation The system has a built-in checking program that automatically tests the components at power-on. One beep indicates that the system has successfully completed its power-on test. If there is a problem, a series of beeps may occur. If this happens repeatedly after powering on the system, power off the system and see Section 4 for troubleshooting.
Page 32: Minitower Setup
Setup and Operation Minitower Setup Set up the minitower systems by making the following connections. (See the preceding sub- section, Desktop Setup, if setting up a desktop computer). At the rear of the system, set the voltage selector switch to 115V or 230V and insert the power cord into the power socket (see Figure Section 2-6).
Page 33: Minitower Peripheral Connections
Setup and Operation Connect the keyboard and mouse cables to the back of the system unit (see Figure Section 2-8). Connect the monitor and any other peripherals to the rear panel (see Figure Sec- tion 2-8). Detailed monitor connections are given in Section 3, Options. Keyboard Port Mouse Port Serial Port 1...
Page 34: System Configuration
Setup and Operation The system has a built-in checking program that automatically tests the components at power-on. One beep indicates that the system has successfully completed its power-on test. If there is a problem, a series of beeps may occur. If this happens repeatedly after powering on the system, power off the system and see Section 4 for troubleshooting.
Page 35: Setup Utility
Setup and Operation Setup Utility The Setup utility is used to view and set system parameters. Use the Setup utility program: to set the time and date. to update or check system parameters when adding or removing expansion options. to correct a hardware discrepancy when the Power-On-Self-Test (POST) displays an error message and a prompts appears to run Setup.
Page 36: How To Use Setup
Setup and Operation Setup’s Main Menu appears and looks similar to the following screen. System Configuration BIOS SETUP UTILITIES 1992 American Megatrends Inc., All Rights Reserved STANDARD CMOS SETUP ADVANCED CMOS SETUP PERIPHERAL MANAGEMENT SETUP CONFIGURE WITH BIOS DEFAULTS CONFIGURE WITH POWER-ON DEFAULTS CHANGE PASSWORD WRITE TO CMOS AND EXIT DO NOT WRITE TO CMOS AND EXIT...
Page 37: Standard Cmos Setup
2-10 Setup and Operation The legend bar at the bottom of the Main Menu shows the command keys to use to exit the Main Menu, select a menu option, change the background color of the screen, and save settings and exit Setup. To choose a selection from the Main Menu, use the keyboard’s up or down arrow keys to highlight the selection, then press Enter...
Page 38: Advanced Cmos Setup
Setup and Operation 2-11 Table Section 2-1 Standard CMOS Setup Parameters Parameter Options Description System Date mn/date/year Sets the system date. System Time hour/min/sec Sets the system time. Floppy Drive A: 360 KB, 5 1/4” Selects the type of diskette drive in the Floppy Drive B: 1.2 MB, 5 1/4”...
Page 39: Advanced Cmos Setup Parameters
2-12 Setup and Operation Table Section 2-2 Advanced CMOS Setup Parameters Parameter Options Description Typematic Rate Enabled or Selects either enabled or disabled. When enabled, the Programming disabled following two typematic options are available. Default is disabled. Typematic Rate 250, 500, Determines how long it takes for the auto-repeat function Delay (msec) 750 or...
Page 40 Setup and Operation 2-13 Table Section 2-2 Advanced CMOS Setup Parameters Parameter Options Description Disable Shadow C0000h This selection changes the location of the non-shadowed Memory Base C4000h memory. Selection of the option will affect the settings C8000h under “Disable Shadow Memory Size.” C0000h is the CC000h default setting.
Page 41: Peripheral Management Setup
2-14 Setup and Operation Table Section 2-2 Advanced CMOS Setup Parameters Parameter Options Description Enhanced ISA Disabled or Disabled is the default setting. Selecting Enabled allows Timing Enabled the ISA bus to run at 10 MHz, instead of the standard 8 MHz, if the ISA agents tolerate 10 MHz.
Page 42: Configure With Bios Defaults
Setup and Operation 2-15 Table Section 2-4 Peripheral Management Setup Parameters Parameter Options Description Second Serial Disabled Default is Disabled. The address is automatically set to 2F8H Port Address 2F8H in the Programming Option, above. 2E8H Parallel Port Disabled Default is Disabled. The address is automatically set to 378H Address 378H in the Programming Option, above.
Page 43: Write To Cmos And Exit
2-16 Setup and Operation To change or delete the password, do the following: Highlight the “Change Password” selection on the Main Menu. Press An “Enter NEW Password” message appears on the screen. Change Enter or delete the password, as follows. Change the password, by entering a new password, then follow steps 3, 4 and 5, above.
Page 44: System Board Jumpers
Setup and Operation 2-17 SYSTEM BOARD JUMPERS Figure Section 2-12 shows the factory settings and locations of the system board jumpers. Explanations of each follow the figure. Figure Section 2-12 System Board Jumpers...
Page 45: System Configuration Jumpers
2-18 Setup and Operation Table Section 2-6 shows the factory settings of the system configuration jumpers and ex- plains the function of each position. Table Section 2-6 System Configuration Jumpers Jumper Function Factory Setting CPU voltage jumper – Selects the voltage for the CPU. 1–2 Shorted 1–2 Shorted: 5.00V for the 60 MHz 2–3 Shorted:...
Page 46 Setup and Operation 2-19 Table Section 2-6 System Configuration Jumpers Jumper Function Factory Setting JP19 CMOS Clear jumper –Clears and resets the CMOS Setup to 2–3 Shorted the factory default. 1–2 Shorted: Clears and resets CMOS to factory settings 2–3 Shorted: Normal operation JP20 CMOS Setup jumper –...
Page 47: Section 3 Options
SIMM memory, video DRAM chip kit, 5 1/4-inch devices, and a monitor option. All options except for the monitor require that the system unit top cover be removed. When installing the monitor, turn to the “NEC SVGA Monitor” subsection. INTERNAL OPTIONS All internal options require the top cover to be removed.
Page 48: Desktop Cover Removal
Options Desktop Cover Removal Remove the desktop cover as follows. Power off and unplug the keyboard, mouse, power and all other peripheral cables attached to the system unit. Remove the two cover screws shown in Figure Section 3-1. Screws Figure Section 3-1 Desktop Cover Screws Slide the top cover toward the rear about one inch.
Page 49: Minitower Cover Removal
Options Minitower Cover Removal Remove the minitower cover as follows. Power off and unplug the keyboard, mouse, power cord and all other peripheral cables attached to the system unit. Unlock the system unit top cover if locked. Remove the four cover screws shown in Figure Section 3-4. Screws Keylock Figure Section 3-4 Minitower Cover Screws...
Page 50: Minitower Bottom Cover Removal
Options Slide the top cover toward the rear about one inch (see Figure Section 3-6). Lift the top cover up and off the system unit. Figure Section 3-6 Removing the Minitower Cover Minitower Bottom Cover Removal Remove the bottom access cover from the minitower system unit as follows. Power off and unplug the keyboard, mouse, power cord and all other peripheral cables attached to the system unit.
Page 51: Expansion Board(S)
Options Slide the bottom access cover toward the front of the system releasing the tabs from the cutouts in the bottom of the chassis. 1 of 4 Tabs Bottom Access Cover Screw Figure Section 3-8 Minitower Bottom Access Cover Expansion Board(s) Expansion boards plug into edge connectors on the ISA/PCI-bus backboard.
Page 52 Options Remove the expansion slot screw and cover (see Figure Section 3-10). Save the expansion slot cover in the event the expansion board is removed in the future. To remove the expansion slot cover from the inside of the ISA/PCI-Bus back- board, remove the inside expansion slot screws shown in Figure Section 3-12.
Page 53 Options When removing an expansion slot cover from the inside of the ISA/PCI-Bus backboard, separate the inside expansion slot L-bracket from the expansion slot cover by removing the screw shown in Figure Section 3-14. Reattach the L-bracket to the expansion board being installed. Slot Cover Screw...
Page 54: Minitower Expansion Board Installation
Options Minitower Expansion Board Installation Install expansion boards into the minitower system unit as follows. Remove the bottom cover as previously described. Remove the expansion slot screw and cover (see Figure Section 3-16). Save the expansion slot cover in the event the expansion board is removed in the future. ISA/PCI-BUS Backboard Connector 1...
Page 55: Expansion Board Troubleshooting
Options Expansion Board Troubleshooting If a fault occurs at power-on, verify that the expansion board installation was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beeping occurs, turn off the computer and try again. If the beeping persists, see “Troubleshooting”...
Page 56: System Board Options
3-10 Options System Board Options The following system board options are available for all the desktop and minitower systems. OverDrive processor SIMM memory Video DRAM chip Once the top cover is removed (as previously described), use Figure Section 3-18 to locate each of the system board option sockets.
Page 57: Overdrive Processor Installation
CAUTION: Heatsinks are required for micro- processors, math coprocessors, and OverDrive processors installed in the systems. Heatsinks are available through NEC. Install a OverDrive processor into the system board as follows. Remove the top cover and any expansion boards covering the PGA/OverDrive socket as previously described.
Page 58 3-12 Options Insert the OverDrive processor by aligning the notch corner with inner alignment hole of the socket (see Figure Section 3-22). Notched Corner of Chip (heatsink not shown) Alignment Hole Figure Section 3-22 OverDrive Processor Alignment Set the jumper settings for the installed OverDrive processor (see Section 2, Setup and Operation).
Page 59: Overdrive Processor Troubleshooting
Options 3-13 OverDrive Processor Troubleshooting If a fault occurs at power-on, verify that the installation was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beep- ing occurs, turn off the computer and try again. If the beeping persists, see Section 4, Maintenance and Troubleshooting.
Page 60: Simm Upgrade Path
3-14 Options NEC memory expansion options include the following kits. SIMM kits are 70-ns fast. 4-MB SIMM sticks are 1 MB x 36 bit. 8-MB SIMM sticks are 2 MB x 36 bit. 16-MB SIMM sticks are 4 MB x 36 bit.
Page 61 Options 3-15 Table Section 3-4 Desktop SIMM Configurations Bank B Bank A Memory On System Board Sockets J25 and J26 Sockets J27 and J28 8 MB* 8-MB System Board Empty Empty 10 MB 8-MB System Board 1 MB SIMM (2) Empty 12 MB 8-MB System Board...
Page 62 3-16 Options Table Section 3-6 Minitower SIMM Configurations Bank B Bank A Memory On System Board Sockets J25 and J26 Sockets J27 and J28 8 MB* 8-MB System Board Empty Empty 10 MB 8-MB System Board 1 MB SIMM (2) Empty 12 MB 8-MB System Board...
Page 63: Simm Installation
Options 3-17 SIMM Installation Install SIMM sticks into the system board as follows. Locate the SIMM sockets using Figure Section 3-20. Remove the top cover and any expansion boards covering the socket as previ- ously described. Remove the four 3 1/2-inch drive bracket screws (see Figure Section 3-24). Without removing the power and signal cables, place the 3 1/2-inch bracket with the diskette drive and hard disk drive attached on the power supply.
Page 64: Simm Upgrade Kit Troubleshooting
3-18 Options Repeat steps 2 for each SIMM to be installed. Replace any removed expansion boards. Replace the top cover and run Setup to reconfigure the computer for the addi- tional memory (see Section 2, Setup and Operation). SIMM Upgrade Kit Troubleshooting If a fault occurs at power-on, verify that the reassembly was performed correctly.
Page 65: Video Dram Chip Installation
Options 3-19 Video DRAM Chip Installation The system board comes standard with 1 MB of video DRAM integrated into the system board. The optional video DRAM kit consists of two 256K x 16 (512 KB) chips which adds 1 MB of video memory. The optional video DRAM is installed into the video DRAM sock- ets on the system board shown in Figure Section 3-20.
Page 66: Video Dram Chip Troubleshooting
3-20 Options Video DRAM Chip Troubleshooting If a fault occurs at power-on, verify that the reassembly was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beeping occurs, turn off the computer and try again. If the beeping persists, see Section 4, Maintenance and Troubleshooting.
Page 67 Options 3-13 OverDrive Processor Troubleshooting If a fault occurs at power-on, verify that the installation was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beep- ing occurs, turn off the computer and try again. If the beeping persists, see Section 4, Maintenance and Troubleshooting.
Page 68 3-14 Options NEC memory expansion options include the following kits. SIMM kits are 70-ns fast. 4-MB SIMM sticks are 1 MB x 36 bit. 8-MB SIMM sticks are 2 MB x 36 bit. 16-MB SIMM sticks are 4 MB x 36 bit.
Page 69 Options 3-15 Table Section 3-3 SIMM Configurations Bank B Bank A Memory On System Board Sockets J25 and J26 Sockets J27 and J28 8 MB* 8-MB System Board Empty Empty 10 MB 8-MB System Board 1 MB SIMM (2) Empty 12 MB 8-MB System Board 1 MB SIMM (2)
Page 70: Simm Installation
3-16 Options SIMM Installation Install SIMM sticks into the system board as follows. Locate the SIMM sockets using Figure Section 3-10. Remove the top cover and any expansion boards covering the socket as previ- ously described. Insert the SIMM into the SIMM socket at an angle, then push the SIMM upright so that the clips hold the SIMM in place (see Figure Section 3-13).
Page 71: Simm Upgrade Problems And Solutions
Options 3-17 SIMM Upgrade Kit Troubleshooting If a fault occurs at power-on, verify that the reassembly was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beeping occurs, turn off the computer and try again. If the beeping persists, see Section 4, Maintenance and Troubleshooting.
Page 72: Video Dram Chip Socket
3-18 Options Video DRAM Chip Installation The system board comes standard with 1 MB of video DRAM integrated into the system board. The optional video DRAM kit consists of two 256K x 16 (512 KB) chips which adds 1 MB of video memory. The optional video DRAM is installed into the video DRAM sock- ets on the system board shown in Figure Section 3-10.
Page 73: Video Dram Chip Problems And Solutions
Options 3-19 Video DRAM Chip Troubleshooting If a fault occurs at power-on, verify that the reassembly was performed correctly. One beep indicates that the computer has completed its power-on self-test. If intermittent beeping occurs, turn off the computer and try again. If the beeping persists, see Section 4, Maintenance and Troubleshooting.
Page 74: Optional 5 1/4-Inch Slot Devices
OPTIONAL 5 1/4-INCH SLOT DEVICES This subsection provides the procedures for installing an optional 5 1/4-inch device into the system unit. The optional NEC diskette and hard disk drives are described first, then proce- dures for installing the devices follow.
Page 75: Hard Disk Drives
3-22 Options PCB (connectors and jumpers are attached to back of PCB) Power Connector Terminating Resistor Jumper Not Used Drive Address (0, 1, 2, 3) Signal Connector Front of Drive Figure Section 3-18 FD1158C, 1.2-MB Diskette Drive Hard Disk Drives There are two IDE interface connectors on the system board.
Page 76: Hard Disk Drive Settings
IDE hard drives are given in Appendix B, Specifications. Jumpers for the drives are set for single drive configurations. Jumper settings and their locations are shown in Figure Section 3-20. NOTE: All NEC hard disk drives are shipped with the jumpers set for: master, one drive installed.
Page 77: Desktop 5 1/4-Inch Device Installation
3-24 Options DESKTOP 5 1/4-INCH DEVICE INSTALLATION To install a 5 1/4-inch device into the desktop system, the top cover, 5 1/4-inch blank panel, and the 3 1/2-inch drive bracket must first be removed. “Minitower 5 1/4-inch Device In- stallation” instructions are provided later in this section. When device option kits come with rails preattached.
Page 78: Desktop Blank Panel Removal
Options 3-25 Desktop Blank Panel Removal Remove the front panel assembly from the desktop chassis as follows. Remove the desktop cover and 3 1/2-inch diskette drive bracket as previously described. Unplug the following cables from their connectors (see Figure Section 3-24). Power lamp (connector J32) Hard disk drive busy lamp (connector J33) Reset button (connector J31)
Page 79: Desktop 5 1/4-Inch Device Placement
3-26 Options From the inside of the front panel, release the blank panel tabs and remove the panel from the front panel (see Figure Section 3-26). Front Panel Cover (inside view) Blank Panels 2 of 4 Tabs Figure Section 3-26 Desktop Blank Panel Removal NOTE: The system unit chassis may also require a slot cover punch-out to be removed.
Page 80: Desktop 5 1/4-Inch Diskette Drive Cabling
Options 3-27 Install the four device screws that were removed with the rails or that come with the kit, two on each side of the device cage (see Figure Section 3-28). Drive Cage 2 of 4 Screws Figure Section 3-28 Desktop 5 1/4-Inch Device Screws Continue to desktop 5 1/4-inch device cabling.
Page 81: Desktop Hard Disk Drive Cabling
3-28 Options Locate the power connector coming from the power supply and plug correct fit- ting power cable into the device power connector (see Figure Section 3-30). 1.2-MB Diskette Drive Connector Red Edge Power Cable Diskette Drive Signal Cable Figure Section 3-30 Desktop 5 1/4-Inch Diskette Drive Cables Desktop Hard Disk Drive Cabling Cable the hard disk drive as follows.
Page 82: Finishing Desktop 5 1/4-Inch Device Installation
Options 3-29 Locate one of the larger power connectors coming from the power supply and plug it into the hard disk drive power connector (see Figure Section 3-32). Power Cable Cable Figure Section 3-32 Desktop Hard Disk Drive Cables Finishing Desktop 5 1/4-Inch Device Installation Replace the assemblies removed earlier and reconfigure the system as follows.
Page 83: Minitower Blank Panel Removal
3-30 Options NOTE: Do not remove the 5 1/4-inch blank panel when installing a hard disk drive. The 3 1/2-inch hard disk drives must be mounted in a 5 1/4-inch bracket. Minitower Blank Panel Removal Remove the front panel assembly from the minitower chassis as follows. Remove the minitower cover as previously described.
Page 84: Minitower 5 1/4-Inch Device Cage Removal
Options 3-31 Remove the two screws holding each metal cover plate to the device cage. Remove the plates. Blank Panels 1 of 2 Cover Plate Screws 1 of 2 Blank Panel Tabs Figure Section 3-36 Minitower Blank Panel Removal Minitower 5 1/4-Inch Device Cage Removal Remove the 5 1/4-inch device cage as follows.
Page 85: Removing The Device Cage Screws
3-32 Options Remove the five device cage screws shown in Figure Section 3-38. Screws Screws Figure Section 3-38 Removing the Device Cage Screws Pull the device cage out of the chassis. If there is a device already installed in the cage, tag and unplug the power and signal cables.
Page 86: Minitower 5 1/4-Inch Device Placement
Options 3-33 Minitower 5 1/4-Inch Device Placement Install the device into the 5 1/4-inch device slot as follows. Remove the top cover, front panel, and 5 1/4-inch device cage as previously de- scribed. NOTE: When installing 3 1/2-inch hard disk drives, a 5 1/4-inch hard disk bracket must first be attached to the 3 1/2-inch hard disk drives.
Page 87: Minitower 3 1/2-Inch Drive Cage Removal
3-34 Options Minitower 3 1/2-Inch Drive Cage Removal Remove the 3 1/2-inch drive cage as follows. Remove the top cover as previously described. Remove the three screws holding the drive cage to the rear of the chassis (see Figure Section 3-42). Remove the two screws holding the drive cage to the chassis support bracket (see Figure Section 3-42).
Page 88: Minitower 3 1/2-Inch Drive Placement
Options 3-35 Minitower 3 1/2-Inch Drive Placement Install the hard disk drive into the 3 1/2-inch drive cage as follows. Remove the top cover, front panel, and 3 1/2-inch drive cage as previously described. Install the drive in an open bay in the drive cage. Be sure that the drive connectors are facing the inside of the chassis when reinstalled.
Page 89: Minitower 5 1/4-Inch Diskette Drive Cabling
3-36 Options Minitower 5 1/4-Inch Diskette Drive Cabling Cable an optional 5 1/4-inch diskette drive as follows. Locate the diskette drive signal cable (connected to the 3 1/2-inch diskette drive) and plug middle connector into the 5 1/4-inch diskette drive signal connector (see Figure Section 3-46).
Page 90: Minitower Hard Disk Drive Cabling
Options 3-37 Minitower Hard Disk Drive Cabling Either of the hard disk drive signal cable connectors may be used for the hard disk drives. The hard disk drives are configured by jumpers as master (drive C) and slave (drive D). The hard disk drive connectors are identified in Figure Section 3-20.
Page 91: Finishing Minitower 5 1/4-Inch Device And 3 1/2-Inch Drive Installation
3-38 Options Finishing Minitower 5 1/4-Inch Device and 3 1/2-Inch Drive Installation Replace the assemblies removed earlier and reconfigure the system as follows. Reinstall the 5 1/4-inch device or 3 1/2-inch drive cage by reversing the steps of the procedures given earlier. Align the cage mounting holes screws holes.
Page 92: Device Troubleshooting
Options 3-39 Device Troubleshooting One beep indicates that the computer has completed its power-on self-test. If intermittent beeping occurs, turn off the computer and try again. If the beeping persists, see Section 4 “Maintenance and Troubleshooting.” Table Section 3-7 summarizes problems that may develop after installing a hard disk drive and lists in sequential order suggested corrective actions.
Page 93: Nec Svga Monitor
6. Replace system board. NEC SVGA MONITOR This subsection explains how to connect an NEC SVGA Monitor and perform all adjust- ments, switch settings, and external controls. Because each system board has an integrated video controller, the monitor does not require a video controller board. Use the following guidelines to set up the monitor.
Page 94: Connecting The Monitor
Options 3-41 Control panels for the NEC SVGA Monitor are on the front and rear. The monitor offers a maximum horizontal resolution of 1024 pixels by a maximum vertical resolution of 768 pixels. The NEC SVGA Monitor provides system compatibility via the following features: provides automatic adjustment to vertical and horizontal frequencies including VGA, SVGA, EVGA, and VESA VGA.
Page 95: Monitor Connections
3-42 Options Connect one end of the power cord to the monitor. Plug the other end into the AC wall outlet. NOTE: Figure shows the monitor connection in the minitower orientation. If the system unit in the figure were in the desktop position, attach the monitor to the same connector.
Page 96: Front Control Panel
Options 3-43 Front Control Panel The front control panel on the NEC SVGA Monitor is shown in Figure Section 3-52. Ex- planations of the individual controls follow the figure. Power Indicator Power Switch Horizontal Vertical Height Brightness Contrast Width Control...
Page 97: Rear Control Panel
3-44 Options Rear Control Panel The rear control panel on the NEC SVGA Monitor is shown in Figure Section 3-54. Expla- nations of the individual controls follow the figure. The tilt/swivel feature allows proper po- sitioning of the monitor. Vertical Center...
Page 98: Nec Svga Monitor Troubleshooting
Options 3-45 NEC SVGA Monitor Troubleshooting Use Table Section 3-9 to help isolate and repair NEC SVGA monitor malfunctions. NEC Services and Information telephone numbers are listed in Section 4, Table 4-1. NOTE: The monitor and cable together are considered a whole-unit, field-replaceable assem- bly.
Page 99: Section 4 Maintenance And Troubleshooting
Section 4 Maintenance and Troubleshooting This section provides information on maintaining and troubleshooting PowerMate Series computers. NEC service and information telephone numbers are listed in Table 4-1. Table Section 4-1 NEC Service and Information Telephone Numbers Service Call To order NEC spare parts In the U.S., call 1(800) 632-4525...
Page 100: Maintenance
Maintenance and Troubleshooting MAINTENANCE This subsection contains general information for cleaning and checking the computer's sys- tem unit, keyboard, and monitor. The system unit, keyboard, and monitor require cleaning and checking at least once a year, and more often if operating in a dusty environment. No other scheduled maintenance or lubrication is required.
Page 101: Keyboard
Maintenance and Troubleshooting Keyboard When necessary, inspect and clean the inside of the keyboard. Proceed 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 assem- bly.
Page 102: Mouse
Maintenance and Troubleshooting Mouse 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. Disconnect the mouse from the system unit.
Page 103: Troubleshooting
Maintenance and Troubleshooting TROUBLESHOOTING This subsection provides information that helps isolate and repair computer malfunctions at the field level. Step-by-step instructions on diagnosing and solving computer hardware problems are provided. If disassembly is required, see Sections 5 and 6. Connector pin assignments are explained in the Appendix A.
Page 104 Maintenance and Troubleshooting Table Section 4-2 System Error Messages Message Description D: Drive Failure Hard disk drive D: does not respond. Replace the hard disk drive. Diskette Boot Failure The boot disk in the diskette drive A: is corrupt. It cannot be used to boot the system.
Page 105: Diagnosing And Solving Problems
Maintenance and Troubleshooting Table Section 4-4 describes the possible ISA NMI error messages. Table Section 4-4 ISA NMI Error Messages Message Description Memory Parity Error at xxxxx Memory failed. If the memory location can be determined, it is displayed as xxxxx. If not, the message is Memory Parity Error ????.
Page 106 Maintenance and Troubleshooting Table Section 4-6 Problems and Solutions Problem Symptom Solution Power supply Any one or more of the 1. Perform steps 1 through 4 listed in malfunction following conditions could this table under No Power. occur: Front panel lamps out, diskette 2.
Page 107 Maintenance and Troubleshooting Table Section 4-6 Problems and Solutions Problem Symptom Solution Diskette drive does Lamp on drive panel does not 1. Check power and signal cable not work light when diskette is loaded. connections between diskette drive, system board, and power supply. 2.
Page 108 1. Adjust the monitor's synchronization knobs. 2. Check that the monitor's resolution matches the video setting or the video driver used (see Section 1). The NEC SVGA Monitor supports up to 1024 x 768. Most monitors don't support resolutions above 640 x 480 (VGA monitors).
Page 109: Beep Codes
Maintenance and Troubleshooting 4-11 Table Section 4-6 Problems and Solutions Problem Symptom Solution Communication No or bad data when 1. Check cable connections between error communicating. system board and device. 2. Check that the interface port is selected. 3. Test or replace device and interface cable.
Page 110: Bios Update Utility
BIOS UPDATE UTILITY The NEC Bulletin Board Service (BBS) provides users with information about system software and hardware. Use the NEC BBS to obtain the latest version of the BIOS Update utility (BUU) and for VGA video drivers. The Flash ROM allows the BIOS to be upgraded with the BIOS Update utility without re- moving the ROM.
Page 111: Recovery Mode
Enter Press three times. Enter At the NECTECH Main Menu, press for the file menu. Enter To hang up and log off, follow these steps at the NEC Technologies Bulletin Board: Press (to continue). Enter Press (command for Good-bye/Hang-up). Press...
Page 112: Disassembly And Reassembly
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 113: Top 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 114: Expansion Board Removal
Desktop Repair Remove the two cover screws shown in Figure Section 5-1. Screws Figure Section 5-1 Top Cover Screws Slide the top cover toward the front about one inch. Lift the top cover up and off (see Figure Section 5-2). Figure Section 5-2 Removing the Top Cover Expansion Board Removal Remove any installed expansion board(s) using Figure Section 5-4 through Figure Section...
Page 115: Expansion Slot Screw
Desktop Repair Remove the screw from the expansion slot bracket (see Figure Section 5-4). To remove a board on the inside of the ISA/PCI-Bus backboard, remove the expansion slot screw shown in Figure Section 5-4. ISA/PCI-Board Expansion Board Backboard Screw Expansion Board Figure Section 5-4 Expansion Slot Screw Inside Expansion...
Page 116: Isa/Pci-Bus Backboard Removal
Desktop Repair When removing an expansion board from the backside of the ISA/PCI-Bus back- board separate the inside expansion slot L-bracket from the expansion board by removing the screw shown in Figure Section 5-7. Expansion Board Bracket Screw L-Bracket Figure Section 5-7 Removing the Expansion Slot L-Bracket ISA/PCI-BUS Backboard Removal Remove the ISA/PCI-Bus backboard from the system unit as follows.
Page 117: 1/2-Inch Diskette And Hard Disk Drive Removal
Desktop Repair 3 1/2-inch Diskette and Hard Disk Drive Removal Remove the 3 1/2-inch diskette drive and 3 1/2-inch hard disk drive as follows. Remove the top cover as previously described. Unplug the diskette drive power cable and signal cable from the diskette drive (see Figure Section 5-9).
Page 118: Front Panel Assembly Removal
Desktop Repair Remove the four 3 1/2-inch diskette drive screws; two on each side of the drive bracket (see Figure Section 5-11). Remove the two 3 1/2-inch hard disk drive screws; two on each side of the drive bracket (see Figure Section 5-11). Pull the drives out from the front of the bracket.
Page 119: Indicator Panel Connectors
Desktop Repair Remove the five front panel screws (see Figure Section 5-13). Feed the two lamp and reset cables through the hole in the front of system unit chassis when removing the front panel assembly. Front Panel Lamp and Reset Button Connectors (not shown) Five Screws...
Page 120: Power Button Cover Removal
Desktop Repair Power Button Cover Removal Remove the power button cover from the front panel as follows. Remove the top cover and front panel as previously described. Release the four power button tabs and push the tabs through the front panel. Remove the power button from the front of the panel.
Page 121: Speaker Assembly Removal
5-10 Desktop Repair Speaker Assembly Removal Remove the speaker from the device cage as follows. Remove the top cover as previously described. Unplug the speaker connector J37 on the system board. Remove the speaker screw from the side of the device cage (see Figure Section 5- 16).
Page 122: Simm Removal
Desktop Repair 5-11 SIMM Removal Remove SIMM sticks from the system board as follows. Remove the top cover, and any full size expansion boards as previously described. Spread apart the two clips at each end of the SIMM stick (the clips are part of the system board's connectors).
Page 123: Optional 5 1/4-Inch Device Removal
5-12 Desktop Repair Optional 5 1/4-Inch Device Removal Remove an optional 5 1/4-inch device from the 5 1/4-inch device cage per Figure Section 5- 19, and the following steps. Remove the top cover, front panel, and 3 1/2-inch drive bracket as previously described.
Page 124: 1/4-Inch Device Cage Removal
Desktop Repair 5-13 5 1/4-Inch Device Cage Removal Remove the 5 1/4-inch device cage from the system unit as follows. NOTE: Devices housed inside the device cage can be removed from the device cage without removing the device cage. See the preceding procedure.
Page 125: Power Supply Removal
5-14 Desktop Repair Power Supply Removal Remove the power supply from the system unit as follows. Remove the top 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 Section 5-23).
Page 126: System Board Removal
Desktop Repair 5-15 Remove the four screws holding the power supply to the system unit (see Figure Section 5-25). Slide the power supply toward the system board to release the two tabs at the front, then lift it out of the system unit. 1 of 2 Tabs Power Supply...
Page 127: System Board Connectors And Screws
5-16 Desktop Repair Remove and label all cables connected to the system board Figure Section 5-27 provides the general locations of the connectors for the system board. Appendix A provides the pin assignments for each connector; Table Section 5-3 identifies the correct connector.
Page 128: Illustrated Parts Breakdown
5-17 Illustrated Parts Breakdown This subsection contains the illustrated parts breakdown (IPB) and NEC part numbers for the PowerMate P60 desktop computer. Table Section 5-5 lists the field-replaceable parts for the computer. Figure Section 5-29 is the illustrated parts breakdown.
Page 130 Video DRAM Chip Kit 158-153685-003 270-MB Hard Disk Drive Kit 158-053407-011 340-MB Hard Disk Drive Kit 158-053437-008 420-MB Hard Disk Drive Kit 158-053407-013 NEC SVGA Monitor 158-053605-000 08119705 MultiSync 3FGe Color Monitor MultiSync 4FGe Color Monitor 08119709 MultiSync 5FGe Color Monitor 08119343...
Page 131 5-20 Desktop Repair Table Section 5-9 lists PowerMate P60 desktop documentation and packaging. Table Section 5-9 PowerMate P60 Desktop Documentation and Packaging* Description Part Number PowerMate P60 Series System User's Guide 819-180981-000 PowerMate P60 Series Quick Setup 819-180984-000 PowerMate P60 Series Service and Reference Manual 819-180994-000 PowerMate P60 Desktop Shipping Carton 158-040442-004...
Page 132: Disassembly And Reassembly
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 133 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 134: Minitower Cover Screws
Minitower Repair Top Cover Removal Remove the top cover as follows. NOTE: Unplug the power cord before disas- sembling the system unit. Voltage is present in- side the system unit even after the power is off. All voltage is removed only when the power cord is unplugged.
Page 135: Bottom Cover Removal
Minitower Repair Slide the top cover toward the rear about one inch (see Figure Section 6-3). Lift the top cover up and aff the system unit. Figure Section 6-3 Removing the Minitower Cover Bottom Cover Removal Remove the bottom access cover from the minitower system unit as follows. Power off and unplug the keyboard, mouse, power cord and all other peripheral cables attached to the system unit.
Page 136: Expansion Board Removal
Minitower Repair Slide the bottom access cover toward the front of the system releasing the tabs from the cutouts in the bottom of the chassis. 1 of 4 Tabs Cutout Bottom Access Access Cover Cover Screw Figure Section 6-5 Minitower Bottom Access Cover Expansion Board Removal Remove any installed expansion board(s) using Figure Section 6-7 and the following steps.
Page 137: Front Panel Screws
Minitower Repair Front Panel Assembly Removal Remove the front panel assembly from the chassis as follows Remove the top cover as previously described. Remove the seven front panel screws from inside the top cover Remove the four screws holding the front panel to the system; two screws on each side (see Figure Section 6-9).
Page 138: Power Button Cover Removal
Minitower Repair Power Button Cover Removal Remove the power button cover from the front panel as follows. Remove the top cover and front panel as previously described. Release the four power button tabs from the inside of the front panel and push the tabs through the front panel (see Figure Section 6-11).
Page 139: Blank Panel Removal
Minitower Repair Remove the two screws holding each metal cover plate to the device cage. Remove the plates. Blank Panels 1 of 2 Cover Plate Screws 1 of 2 Blank Panel Tabs Figure Section 6-13 Blank Panel Removal...
Page 140: Speaker Assembly Removal
Minitower Repair Speaker Assembly Removal Remove the speaker per Figure Section 6-15 and the following steps. Remove the top cover as previously described. Unplug the speaker connector J37 on the system board. Slide the speaker over the raised spot and out from the speaker tabs (see Figure Section 6-15).
Page 141: Simm Socket
6-10 Minitower Repair SIMM Removal Remove any optional SIMM sticks from the system board as follows. Remove the top cover and any full size expansion boards as previously described. Spread apart the two clips at each end of the SIMM stick (the clips are part of the system board's connectors).
Page 142: 1/4-Inch Device Cage Removal
Minitower Repair 6-11 5 1/4-Inch Device Cage Removal Remove the 5 1/4-inch device cage from the system unit as follows. Remove the top cover, front panel as previously described. Remove the five device cage screws shown in Figure Section 6-10, holding the cage to the chassis.
Page 143: 1/4-Inch Device Removal
6-12 Minitower Repair 5 1/4-Inch Device Removal Remove a 5 1/4-inch device from the 5 1/4-inch device cage as follows. Remove the top cover, front panel, and 5 1/4-inch device cage as previously de- scribed. Remove the four 5 1/4-inch hard disk drive screws; two on each side (see Figure Section 6-12).
Page 144: 1/2-Inch Hard Disk Drive Removal
Minitower Repair 6-13 3 1/2-inch Hard Disk Drive Removal Remove the 3 1/2-inch hard disk drive as follows. Remove the top cover as previously described. Unplug the hard disk drive power cable and signal cable from the hard disk drive (see Figure Section 6-14).
Page 145: Removing 3 1/2-Inch Drive Cage Screws
6-14 Minitower Repair Remove the two screws holding the device cage to the chassis support bracket (see Figure Section 6-16). 3 1/2-Inch Drive Cage Chassis Support Bracket Screws Screws Figure Section 6-16 Removing 3 1/2-Inch Drive Cage Screws Remove the 3 1/2-inch drive cage from the chassis. Remove the hard disk drive from the 3 1/2-inch drive cage;...
Page 146: 1/2-Inch Diskette Drive Removal
Minitower Repair 6-15 3 1/2-inch Diskette Drive Removal Remove the 3 1/2-inch diskette drive as follows. Remove the top cover as previously described. Unplug the diskette drive power cable and signal cable from the diskette drive (see Figure Section 6-20). NOTE: When reinstalling the diskette drive, note that all power cables are keyed to fit only in the correct position.
Page 147: Diskette Drive Bracket Screws
6-16 Minitower Repair Remove the three 3 1/2-inch diskette drive bracket screws shown in Figure Sec- tion 6-22. 3 1/2-Inch Diskette Drive Bracket Screws Figure Section 6-22 Diskette Drive Bracket Screws Slide the 3 1/2-inch diskette drive with bracket out of the system unit. Remove the four 3 1/2-inch diskette drive screws;...
Page 148 Minitower Repair 6-17...
Page 149: Power Supply Removal
Minitower Repair 6-17 Power Supply Removal Remove the power supply as follows. Remove the top cover 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 Section 6-1).
Page 150 6-18 Minitower Repair Remove the four screws securing the power supply to the system unit (see Figure Section 6-3). Slide the power supply toward the front of the system unit to release the two tabs at the top of the chassis and remove the power supply from the system unit. Tabs Screws Power...
Page 151: Isa/Pci-Bus Backboard Removal
Minitower Repair 6-19 ISA/PCI-Bus Backboard Removal Remove the ISA/PCI-Bus backboard as follows. Remove the top cover and all expansion slot boards as previously described. Remove the two chassis support bracket screws (see Figure Section 6-5). Pull the backboard and bracket out of the system unit. Bracket Screw (not shown) Chassis Support Bracket...
Page 152: System Board Removal
6-20 Minitower Repair Separate the ISA/PCI-Bus backboard from the bracket by removing the two screws shown Figure Section 6-7. Backboard Chassis Screws Support Bracket ISA/PCI-Bus Backboard Figure Section 6-7 ISA/PCI-Bus Backboard Screws System Board Removal Remove the system board per Figure Section 6-9 and the following steps. Remove the following components as previously described.
Page 153 Minitower Repair 6-21 Remove the nine screws that hold the system board to the system unit chassis (see Figure Section 6-9). Remove the system board out the side of the system unit. Power Supply Diskette Drive PCI/IDE Connector Connector Connector Connector Speaker ISA/PCI-Bus...
Page 154: Illustrated Parts Breakdown
Minitower Repair Illustrated Parts Breakdown This subsection contains the illustrated parts breakdown (IPB) and NEC part numbers for the PowerMate P60 minitower computer. Table Section 6-3 lists the field-replaceable parts for the computer. Figure Section 6-11 is the illustrated parts breakdown.
Page 155 Minitower Repair 6-23 Table Section 6-3 PowerMate P60 Minitower Field-Replaceable Parts List* Item Description Part Number 5 1/4-inch Device Cage 158-050705-013 3 1/2-inch Diskette Drive Bracket 158-050705-009 Fan Cover/Card Guide 158-050705-015 Power Button Cover and Spring 158-050698-008 PowerMate P60 Logo 158-030597-004 Front Panel, Bezel 158-030596-000...
Page 156: Powermate P60 Minitower Illustrated Parts Breakdown
6-24 Minitower Repair Figure Section 6-11 PowerMate P60 Minitower Illustrated Parts Breakdown* ____________ * This data was prepared June 1994. For an up-to-date listing of spare parts, please call FastFacts (800) 366-0476 and order document number 42180994.
Page 157 1.2-MB Diskette Drive Kit 158-053476-000 270-MB Hard Disk Drive Kit 158-053407-011 340-MB Hard Disk Drive Kit 158-053437-008 420-MB Hard Disk Drive Kit 158-053407-013 NEC SVGA Monitor 158-053605-000 MultiSync 3FGe Color Monitor 08119705 MultiSync 4FGe Color Monitor 08119709 MultiSync 5FGe Color Monitor 08119343...
Page 158 6-26 Minitower Repair Table Section 6-7 lists PowerMate P60 minitower documentation and packaging. Table Section 6-7 PowerMate P60 Minitower Documentation and Packaging* Description Part Number PowerMate P60 Series System User's Guide 819-180981-000 PowerMate P60 Series Quick Setup 819-180984-000 PowerMate P60 Series Service and Reference Manual 819-180994-000 PowerMate P60 Minitower Series Shipping Carton 158-040446-004...
Page 159: Appendix A Connector Pin Assignments
Appendix A Connector Pin Assignments This appendix describes the system board connector pin assignments. Figure Appendix A-1 shows the locations of the system board connectors. Table Appendix A-1 identifies the con- nector function with the connector number. Descriptions of the connectors are provided in the following subsections.
Page 160 Connector Pin Assignments Table Appendix A-1 System Board Connector Descriptions Function Connector Number Type Monitor (VGA interface) 15 pin female sub D-shell Parallel interface 25 pin female sub D-shell Serial interface COM1/COM2 J3, J4 9 pin D-shell Mouse 6-pin PS/2 style connector Keyboard 6-pin PS/2 style connector Power supply...
Page 161: Serial Interface Connectors
Connector Pin Assignments Serial Interface Connectors Serial interface signals are output from the system board through two 9-pin COM port connectors. The 9-pin, D-subconnectors are located at the rear of the system unit. Pin locations and pin assignments for the two serial interface connectors are shown in Figure Appendix A-2.
Page 162: Parallel Interface Connector
Connector Pin Assignments Parallel Interface Connector The system has a 25-pin parallel port on the system board. Parallel interface specifications for this port conform to the IBM-PC interface. Pin locations and pin assignments for the parallel interface connector are shown in Figure Appendix A-3. Figure Appendix A-3 Parallel Interface (P10)
Page 163: 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 Appendix A-2 shows the connector pin locations and pin assignments. Table Appendix A-2 Video Connector (P8) Pin Assignments Signal...
Page 164: Power Supply Connectors
Connector Pin Assignments Power Supply Connectors Voltages from the power supply are input to the system board through the power supply connector. Figure Appendix A-4 shows the connector pin locations and pin assignments. Power Good Signal Figure Appendix A-4 Power Supply Connector (J12) Pin Assignments Keyboard and Mouse Connectors The keyboard and mouse use standard PS/2 connectors.
Page 165: Power Lamp Connector
Connector Pin Assignments Power Lamp Connector Power connector pin assignments are given in Table Appendix A-5. Table Appendix A-5 Power Lamp Connector (P5) Pin Assignments Signal Lamp Power +5V Ground Hard Disk Drive Busy Lamp Connector Hard disk drive busy lamp connector pin assignments are given in Table Appendix A-6. Table Appendix A-6 Hard Disk Drive Lamp Connector (P7) Pin Assignments Signal Hard disk busy...
Page 166: Reset Button Connector
Connector Pin Assignments Reset Button Connector Reset button connector pin assignments are given in Table Appendix A-8. Table Appendix A-8 Reset Button Connector (P5) Pin Assignments Signal Reset Ground...
Page 167: Diskette Drive Interface Pin Assignments
Connector Pin Assignments Diskette Drive Interface Pin Assignments Table Appendix A-9 provides the pin assignments for the diskette drive interface. Table Appendix A-9 Diskette Drive Connector (P13) Pin Assignments Ground Pin Signal Pin Signal Name FDHDIN — Not used — FDEDIN —...
Page 168: Ide Interface Connectors
A-10 Connector Pin Assignments IDE Interface Connectors All signal levels in the IDE interface are TTL compatible. A logic 1 is a signal whose volt- age 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 169: Simm Sockets
Connector Pin Assignments A-11 SIMM Sockets Table Appendix A-11 provides the J25, J26, J27, and J28 SIMM pin assignments. Table Appendix A-11 SIMM Socket Pin Assignments Signal Signal Signal RAS2 CAS0* CAS2* CAS3* CAS1* PD0 (N/C) RAS0 PD1 (N/C) PD2 N/C PD3 N/C * CAS0 = Bank 0 CAS1 = Bank 1...
Page 170: Isa/Pci-Bus Backboard Connector Pin Assignments
A-12 Connector Pin Assignments ISA/PCI-Bus Backboard Connector Pin Assignments Table Appendix A-12 provides the pin assignments for the ISA/PCI-Bus backboard con- nector on the system board. Table Appendix A-12 ISA/PCI-Bus Backboard Connector Pin Assignments Signal Signal Signal Signal IOCHCK SD07 RSET DRV SD06 –PCIINT1...
Page 171 Connector Pin Assignments A-13 Table Appendix A-12 ISA/PCI-Bus Backboard Connector Pin Assignments Signal Signal Signal Signal SA03 BALE –FRAME –IRDY SA02 –CBE2 –DEVSEL SA01 –TRDY –PLOCK SA00 –STOP –PERR SBHE MEMCS16 SDONE –SERR LAB23 I/OCS16 –SB0 AD15 LAB22 IRQ10 –CBE1 AD14 LAB21 IRQ11...
Page 172: Isa Expansion Bus Connector Pin Assignments
A-14 Connector Pin Assignments ISA Expansion Bus Connector Pin Assignments The expansion slots signals, voltages, and grounds are supplied through the bus connectors. There are no active components on the ISA/PCI-Bus backboard. Table Appendix A-13 provides the pin assignments for the ISA expansion slots. Table Appendix A-13 ISA Expansion Slot Pin Assignments Direction Signal...
Page 173 Connector Pin Assignments A-15 Table Appendix A-13 ISA Expansion Slot Pin Assignments Direction Signal Direction Signal 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 Input/Output LAB21...
Page 174: Pci Expansion Bus Connector Pin Assignments
A-16 Connector Pin Assignments PCI Expansion Bus Connector Pin Assignments The ISA/PCI-Bus backboard connectors J10B1, J10C1, and J10C2 are given in Table Appendix A-14. Table Appendix A-14 PCI Expansion Slot Pin Assignments Signal Signal –12V +12V No connection No connection No connection No connection –PCINT3...
Page 175 Connector Pin Assignments A-17 Table Appendix A-14 PCI Expansion Slot Pin Assignments Signal Signal AD20 AD21 AD19 AD18 +3.3V AD16 AD17 +3.3V –CBE2 –FRAME –IRDY –TRDY +3.3V –DEVSEL –STOP +3.3V –PLOCK SDONE –PERR –SB0 +3.3V –SERR +3.3V AD15 –CBE1 +3.3V AD14 AD13 AD11...
Page 176 A-18 Connector Pin Assignments Table Appendix A-14 PCI Expansion Slot Pin Assignments Signal Signal...
Page 177 Appendix B Specifications This section provides the specifications for the system unit, power supply, diskette drives, hard disk drives, and NEC SVGA Monitor. SYSTEM UNIT SPECIFICATIONS Table B-1 lists system unit specifications. Table Appendix B -1 System Unit Specifications Item...
Page 178 Specification Table Appendix B -1 System Unit Specifications Item Specification Peripheral Interface PS/2-style keyboard connector, rear panel PS/2-style mouse connector, rear panel Two RS-232C serial ports, rear panel Parallel printer port, rear panel VGA port, rear panel Front Panel Power button Power indicator lamp Hard disk drive busy indicator lamp Reset button...
Page 179 Specifications Table Appendix B -1 System Unit Specifications Item Specification Administrative Compliance UL 1950 - safety CSA C22.2 No. 950-m89 TUV EN60950: 1988 FCC part 15, Subpart J, Class B - emissions FCC part 68 C.R.C., c.1374 IEC 950 - safety VDE 0871/6.78, Class B - emissions POWER SUPPLY SPECIFICATIONS Table B-2 lists the input power specifications for the power supply.
Page 180 Specification DISKETTE DRIVE SPECIFICATIONS Table B-4 lists the specifications for the diskette drives. Table Appendix B -4 Specifications for Diskette Drives Features OSDA-90C 1.44-MB FD1158C 1.2 MB Storage Capacity Unformatted 2.0 MB 1.67 MB Formatted 1.44 MB 1.2 MB Recording Density Bit density 17,434 bpi 9870 bpi max...
Page 181 Specifications HARD DISK SPECIFICATIONS Specifications for the hard disk drives are given in Table Appendix B -5. Table Appendix B -5 Specifications for 270-, 340-, and 420-MB Hard Disk Drives Features 270-MB 340-MB 420-MB Physical Configuration Formatted Capacity 270.4 MB 341.3 MB 425.3 MB Actuator Type...
Page 182 Specification NEC SVGA MONITOR SPECIFICATIONS Table Appendix B -6 lists the NEC SVGA Monitor specifications. Table Appendix B -6 NEC SVGA Monitor Specifications Item Specification Picture Tube 14-inch, 90 degree deflection, 0.28 mm trio dot pitch Input Signal Video: Analog 0.7 Vp-p/75 ohms positive Sync.:...
Page 183 (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 184 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 Sections 5 and 6 for battery replacement information.

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Powermate p60m

NEC POWERMATE P60D Service Manual

Section 1 Technical Information

List of Tables

Section 2 Setup and Operation

Appendix B Specifications

Section 3 Options

Section 4 Maintenance and Troubleshooting

Section 5 Desktop Repair

Section 6 Minitower Repair

Appendix A Connector Pin Assignments

Quick Links

Troubleshooting

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Summary of Contents for NEC POWERMATE P60D

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