Page 1 A Powerful, Versatile Corporate PC ® O W E R A T E S E R V I C E A N D R E F E R E N C E M A N U A L...
Page 2 NEC is a registered trademark of NEC Corporation. PowerMate and MultiSync are registered trademarks and VistaScan is a trademark of NEC Corporation or one of its subsidiaries. All are used under license by NEC Corporation and/or one or more of its subsidiaries.
Page 3: Table Of Contents
Inside Features... 1-8 Power Management Features... 1-9 Software Features ... 1-10 Preloaded Software... 1-10 NEC Product Recovery Program CD ... 1-10 NEC PowerMate Driver CD... 1-10 Security Features ... 1-11 Password Security ... 1-11 Windows Network Security Features ... 1-11 Keyboard/mouse Anti-theft Bracket...
Page 4 Boot Menu ... 2-22 Exit Menu ... 2-22 Hard Drive Security ... 2-23 Establishing Hard Disk Drive Passwords ... 2-23 Changing Hard Disk Drive Passwords... 2-23 Using Hard Disk Drive Password Protection... 2-24 Moving the Hard Drive... 2-24 FLASH Utility... 2-25 Online Documentation ...
Page 5 3 1/2-Inch Internal Drives... 3-26 Removing a 3 1/2-Inch Internal Drive ... 3-26 Installing a 3 1/2-Inch Internal Drive ... 3-28 CMOS Battery ... 3-30 System Board... 3-31 Removing the System Board ... 3-31 Reinstalling the System Board... 3-32 Power Supply... 3-33 Front USB Port ...
Page 6 7 Troubleshooting Checklist ... 7-2 System Problems... 7-2 Diskette Drive Problems ... 7-3 Monitor Problems ... 7-3 Keyboard/Mouse Problems... 7-4 CD-ROM Drive Problems ... 7-4 Speaker Problems... 7-5 Diagnostics... 7-6 8 NECC Information Services Service Telephone Numbers ... 8-2 Technical Support ... 8-2 NECC Website...
Page 7 List of Figures PowerMate CT Minitower Front Features ... 1-4 PowerMate CT Desktop Front Features... 1-4 PowerMate CT Minitower Rear Features ... 1-6 Minitower Rear Connector Locations... 1-6 PowerMate CT Desktop Rear Features... 1-7 Desktop Rear Connector Locations ... 1-7 Inside the System...
Page 8 List of Tables PowerMate CT System Configuration ... 1-3 System Components... 1-12 Interrupt Level Assignments ... 2-2 Parallel Port Interrupts ... 2-3 Serial Port Interrupts ... 2-4 System Board Jumper Block Settings ... 2-5 Maxtor EIDE Hard Drive Jumper Settings ... 2-7 Quantum EIDE Hard Drive Jumper Settings ...
Page 9: Preface
This manual contains technical information for servicing and repairing the NEC PowerMate CT systems manufactured by NEC Computers Inc. Use this manual for NEC PowerMate CT computers assembled in Europe. Check the regulatory sticker at the rear of the system to find the assembly location for the computer.
Page 10: Abbreviations
Abbreviations ampere alternating current acknowledge accelerated graphics port audio modem riser ASIC application-specific integrated circuit advanced technology (IBM PC) AT attachment ATAPI AT attachment packet interface asynchronous transfer mode Bulletin Board Service binary-coded decimal BIOS Customized Utility BIOS basic input/output system binary digit BIOS Upgrade Utility bits per inch...
Page 11 IrDA Infrared Data Association Interrupt Request register Industry Standard Architecture internet service provider interrupt request kilo (1024) kilo (1000) kilobyte Kbps Kilobits per second kilogram kilohertz pound local area network light-emitting diode LDCM LANDesk Client Manager least-significant bit large-scale integration mega (million) milliamps maximum...
Page 12 UART universal asynchronous receiver/transmitter ultra high frequency Underwriter’s Laboratories unified memory architecture uninterruptible power supply uniform resource locator universal serial bus volt volts, alternating current video cassette recorder volts, direct current video display terminal VESA video electronics standards association VESA-compliant feature connector Video Graphics Array very high frequency VLSI...
Page 13: System Overview
System Overview Configurations Features Components...
Page 14: Configuration
The system can be configured as a minitower or as a desktop to suit the user’s requirements. Configuration The NEC PowerMate CT system is a built-to-order system for commercial offices. System features include an Intel memory module (RIMM™) sockets, Rambus dynamic random access memory (RDRAM), and a plug and play input/output (I/O) controller.
Page 15: Powermate Ct System Configuration
Pro 100+ 10/100 with Wake-On LAN, Accton PCI Ethernet 10/100 TX4 or TX5 Video Board* 8-MB AGP 4x nVidia™ Vanta™ video board or 32-MB AGP 4x nVidia TnT2™ Pro video board Speakers* NEC 10-watt, with AC power adapter * Built-to-order component ® -compatible Overview 1-3...
Page 16: Features
Front Features The PowerMate CT system can be used as a minitower or as a desktop. The following figures show the features on the front of the system for both setups. Brief descriptions of the features follow the figure.
Page 17: Rear Features
The system has the following devices, controls, and lamps at the front of the system (see the above figures for device, control, and lamp locations). Power/sleep button — press this button to turn on system power. To turn off power, close all applications, shut down Windows power down the system.
Page 18: Powermate Ct Minitower Rear Features
PowerMate CT Minitower Rear Features A – AC Power Connector B – Monitor Power Socket C – Power Supply D – Keyboard/Mouse Anti-Theft Bracket E – AGP Video Board Minitower Rear Connector Locations A – Keyboard Connector B – Mouse Connector C –...
Page 19: Powermate Ct Desktop Rear Features
PowerMate CT Desktop Rear Features A – Power Supply B – Keyboard/Mouse Anti-theft Bracket C – AGP Video Board D – Locking Tab E – Expansion Slots Desktop Rear Connector Locations A – Mouse Connector B – Parallel Port C – MIDI/Game Port D –...
Page 20: Inside Features
VGA monitor connector — attach a video graphics array (VGA)-compatible monitor (NEC ® MultiSync monitor or other VGA-compatible monitor) with a 15-pin connector to the AGP connector on the installed video board. Monitor power socket — if a plug adapter is available, connect the power cord from the monitor to the monitor power socket to use fewer wall or surge protector outlets.
Page 21: Power Management Features
The inside of the system has the following features: system board — contains the Pentium processor Socket 370 connector, two RIMM memory sockets, two IDE connectors, five PCI board connectors, an AGP board connector, an AMR board connector, diskette drive connector, system configuration jumpers, internal signal and power connectors, and external device connectors 5 1/4-inch accessible device cage —...
Page 22: Software Features
Section 2 for information about using the restore options. NEC PowerMate Driver CD Use the NEC PowerMate Driver CD to install drivers for NEC system options that are not part of the factory configuration. Also use the NEC PowerMate Driver CD to reinstall NECC-supplied software.
Page 23: Security Features
Security Features The system has hardware, software, and mechanical security features that offer protection against unauthorized access to the system and data. The following security features are available. Password Security The BIOS Setup Utility includes a feature that allows a user to set either a user or supervisor password, or both.
Page 24: Components
Components The major system components are listed in the following table, along with the page number where each component is briefly described. Component System Board System Memory Diskette Drive Hard Drive* AGP Video Board* Power Supply Keyboard Mouse CD-ROM Drive* DVD-ROM Drive* CD-RW Drive* Zip Drive*...
Page 25: System Memory
System Memory The system supports up to 512 MB of high-speed non-ECC or ECC RDRAM memory in two RIMM sockets on the system board. Supported are 184-pin, PC800-MHz modules in 64-, 128-, and 256-MB unbuffered configurations. The RIMM modules can be installed in one or two sockets and can vary in size between sockets. If only one RIMM module is installed, a continuity module must be installed in the empty socket.
Page 26: Mouse
Mouse The system ships with a PS/2-compatible mouse as standard equipment. The mouse has a self-cleaning mechanism that prevents a buildup of dust or lint around the mouse ball and tracking mechanism. The six-pin mouse cable connector plugs into the back of the system. Mouse specifications are given in Section 9, “Specifications.”...
Page 27: Modem Board
Modem Board Some systems come with a V.90 rated 56-kilobits per second (Kbps) PCI modem board. The modem board allows the connection of a phone line to the system for data communications functions. Network Board Some systems might come with a 10/100 network board installed in a PCI slot. Specifications for the network board are given in Section 9, “Specifications.”...
Page 28: System Configuration
System Configuration Interrupt Requests Jumper Settings BIOS Setup Utility Hard Drive Security FLASH Utility Online Documentation Product Recovery Program PowerMate Driver CD Intel Processor Serial Number Control Utility...
Page 29: System Interrupts
This section provides information for configuring the system. The section includes: system interrupt request (IRQ) assignments system jumper settings procedures for using the Phoenix system description and procedures for using hard drive security for password protection of the hard drive descriptions and procedures for using the following utilities and applications —...
Page 30: Parallel Port Interrupts
Interrupt Priority IRQ08 IRQ09 IRQ10 IRQ11 IRQ12 IRQ13 IRQ14 IRQ15 * IRQ settings may vary, depending on system configuration. Parallel Port Interrupts The parallel port I/O interrupts are given in the following table. Port LPT1 LPT2 LPT3 Interrupt Level Assignments Interrupt Device* System CMOS/real time clock Shared Resource: ACPI IRQ Holder for PCI IRQ...
Page 31: Serial Port Interrupts
Serial Port Interrupts The interrupts for serial port 1 and serial port 2 are given in the following table. If serial ports share an interrupt, verify that hardware and software added to the system can share these interrupts without problems. Port COM1 COM2...
Page 32: System Board Jumper Block Locations
System Board Jumper Block Locations A – CMOS Clear (JP4) B – Audio Modem Riser Select (JP11) C – Rear USB Device Wakeup (JP3) D – PS/2 Keyboard Power On (JP16) E – Save to RAM (JP18) To prevent damage to the system board, do not set jumpers while power is on.
Page 33 System Board Jumper Block Settings Function Jumper Rear USB Device Wakeup PS/2 JP16 Keyboard at Power On Save to JP18 BIOS Recovery USB Port JP27, Selection JP28 Front USB JP21 Device Wakeup 2-6 System Configuration Setting Description Factory setting. Enables system wakeup via input from the rear USB port.
Page 34: Maxtor Eide Hard Drive Jumper Settings
Maxtor EIDE Hard Drive Jumper Settings The factory settings for the jumpers on the Maxtor EIDE Ultra DMA/66 hard drive are shown in the following table. The settings are for a single hard drive installed in the system as the master device.
Page 35: Bios Setup Utility
How to Start Setup To start the BIOS Setup Utility, follow these steps. Turn on or reboot the system. Press at the NEC startup screen ( about five seconds to press Setup’s Main Menu window appears similar to the following screen. Note The following screen is a typical screen for a system with a 10.0-GB hard drive.
Page 36: How To Use Setup
How to Use Setup The Setup Utility has a Main Menu window and six top-level menus with submenus (see the above figure). The menu bar at the top of the Main Menu window lists the following top-level menus. Main — Use the Main Menu for basic system configuration. For example, select Main to set the system date, set diskette and hard disk parameters, or check memory parameters.
Page 37: Main Menu
Press to exit the current window. The following subsections describe the six top level menus and their submenus. Main Menu Choose the Main Menu by selecting Main in the legend bar on the Main Menu screen. Other Main Menu options are available by selecting submenus. Use the arrow keys to select one of the Main Menu options and press Items with grayed-out text are not available.
Page 38 Main Menu Items Menu Item Settings (default is bold) Primary IDE Master 10263 MB Primary IDE Slave None Secondary IDE Master CD-ROM Secondary IDE Slave None Note: The following setting information applies to the primary and secondary master and slave devices. Each device menu item displays the hard drive or CD-ROM identifier if a device is installed.
Page 39 Menu Item Multi-Sector Transfers LBA Mode Control 32-Bit I/O Transfer Mode Ultra DMA Mode SMART Monitoring Keyboard Features Numlock Key Click Keyboard auto-repeat rate 2-12 System Configuration Main Menu Items Settings (default is bold) Disabled, 2, 4, 8, 16 sectors Determines the number of sectors per block for multi-sector transfers.
Page 40: Advanced Menu
Menu Item Keyboard auto-repeat delay Legacy USB Support Boot-Time Diagnostics Screen System Memory Extended Memory BIOS Revision Processor Serial Number Advanced Menu Choose the Advanced Menu by selecting Advanced in the legend bar on the Main Menu screen. Other Advanced Menu options are available by selecting submenus. Use the arrow keys to select one of the Advanced Menu options and press submenu.
Page 41: Advanced Menu
Menu Item Plug and Play OS Reset Configuration Data PCI Configuration PCI IRQ Line 1 PCI IRQ Line 2 PCI IRQ Line 3 PCI IRQ Line 4 CPU Level 1 Cache CPU Level 2 Cache CPU Level 2 Cache ECC Check Cache Memory Memory Cache...
Page 42 Menu Item Settings (default is bold) Cache C800-CBFF Disabled, Write Through, Write Protect, Write Back Cache CC00-CFFF Cache D000-D3FF Setting at Disabled prohibits caching. Cache D400-D7FF Cache D800-DBFF Setting at Write Through permits writes to be cached and Cache DC00-DFFF sent to main memory at once.
Page 43 Menu Item Interrupt Mode DMA Channel Floppy Disk Controller Game Port & Midi Base I/O Address Base I/O Address/IRQ Large Disk Access Mode Local Bus IDE Adapter Advanced Chipset Control Graphics Aperture Enable memory gap 2-16 System Configuration Advanced Menu Settings (default is bold) IRQ5, IRQ7 Selects the IRQ for the LPT port.
Page 44 Menu Item Settings (default is bold) ECC Error Type SMI, SCI, None, NMI When a ECC error occurs, it generates an interrupt. Select the type of interrupt to report: SERR Signal Condition Multiple bit, Both, None, Single Bit Select ECC error conditions that SERR# be asserted. 8, 1, 2, 4 Pool A Capacity This field defines the maximum number of RDRAM devices...
Page 45: Security Menu
Menu Item Event Logging ECC Event Logging Mark DMI Events As Read Preboot Management Default Primary Video Adapter Hardware Monitor Control System Temperature CPU Temperature CPU Fan Speed Power Fan Speed System Fan Speed Vcore Voltage Vtt 1.5 Voltage +3.3V Voltage +5.0V Voltage +12V Voltage +5 Usb Voltage...
Page 46 Security Menu Items Menu Item Settings (default is bold) Set Supervisor Password Press Enter to access. Use this field to set or change the supervisor password. Press Enter to bring up a dialog box where the password can be entered and confirmed. Set User Password Press Enter to access.
Page 47: Power Menu
Once these passwords are set, NEC Computers Inc. has no capability to remove them. Power Menu Settings Settings (default is bold)
Page 48 Power Menu Settings Menu Item Resume On Time Resume Time Resume Date Power Button Behavior Power Loss Resume Keyboard Board Power On Mouse Power On Resume On Modem Ring Resume on PME Settings (default is bold) Off, On Setting to On allows the user to set the Resume Time field to a time when the system is to wake up.
Page 49: Boot Menu
Boot Menu Choose the Boot Menu by selecting Boot in the legend bar on the Main Menu screen. Other Boot Menu options are available by selecting submenus. Use the arrow keys to select one of the Boot Menu options and press Items with grayed-out text are not available.
Page 50: Hard Drive Security
Hard disk drive (HDD) password protection restricts access to the drive only if the drive is removed from the PowerMate CT system and installed in another system. The system does not prompt you to enter your HDD passwords while the drive remains in the current system.
Page 51: Using Hard Disk Drive Password Protection
If you install the hard drive in another NEC PowerMate system with security enabled, you must enter the master password to access the hard drive. If the hard drive is installed in another NEC PowerMate CT system with security disabled, the system prompts you to enter the master password and then a new user password.
Page 52: Flash Utility
Preface Provides navigating pointers, text conventions, legal information, safety notices, and information on setting up a healthy work environment. Introducing your PowerMate CT Describes front and back features, the diskette drive, and important information about your system. Using your PowerMate CT Provides pointers on system care, productivity, and system operation.
Page 53: Product Recovery Program
Solving Problems Provides a troubleshooting guide, with categories including — Problems After the System Has Been Running Correctly — Problems at Initial System Start-up — Problems Running New Application Software — Problems Operating Add-in Cards — Problems and Suggestions and Beep Codes and Error Messages. To open the Online Documentation double click the Windows desktop.
Page 54: Using The Recovery Program
Using the Recovery Program The Recovery Program main menu offers the following options: Standard System Restore – select this option to restore your system to its original factory software and settings. Advanced Options – select this option to only install the Microsoft Windows operating system.
Page 55: Tools
Advanced Options are as follows: Reinstall Windows Only This process formats the hard drive and performs a new installation of the Windows operating system with the minimum settings. All data, including your personal files, are permanently deleted. Before you begin this process, back up your data files. Windows Setup (Windows 98 only) This process runs Microsoft Windows Setup which reinstalls your operating system.
Page 56: Software Restore Or Removal
Software Restore or Removal Select the Software tab on the main menu to restore or remove specific applications: Click on one or more programs to select them. Smart Restore indicates a selected program with a green check mark in front of it. Deselect a selected program by double clicking it. Click on the Select All To remove a program, double click it.
Page 57: System Requirements
The following information describes: system requirements installation procedures processor serial number features Frequently Asked Questions technical support. System Requirements The Intel Processor Serial Number Control Utility requires: a Pentium III processor-based system Windows 98, Windows 2000, or Windows NT 4.0 (or later) 2 megabytes of hard drive space.
Page 58: Intel Technical Support
What is the default state of the processor serial number? The default state of the processor serial number is on, until the Processor Serial Number Control Utility is installed. Once the Processor Serial Number Control Utility is installed, it turns the processor serial number off by default.
Page 59: Disassembly And Reassembly
Disassembly and Reassembly System Covers Expansion Boards RIMM Memory Modules Processor 5 1/4-Inch Accessible Drives 3 1/2-Inch Accessible Drives 3 1/2-Inch Internal Drives CMOS Battery System Board Power Supply Front USB Port Front LED/Switch Bracket Chassis Intrusion Switch Minitower and Desktop Setup Chassis Shell...
Page 60: Powermate Ct System Disassembly Sequence
This section contains step-by-step disassembly procedures for the PowerMate CT system. A disassembly figure is provided with most procedures. For an illustrated parts breakdown and parts list, see Section 5, “Illustrated Parts Breakdown.” For complete disassembly of the system, follow the disassembly order listed in the following table.
Page 61: Removing The Cover
On completion of any reassembly, perform a power-on test. If a fault occurs, verify that the reassembly was performed correctly. System Covers The following sections describe how to remove and replace the following system unit covers: system cover front panel. Removing the Cover Before installing optional hardware inside your system, you must first remove the cover from the system unit.
Page 62: Replacing The Cover
Replacing the Cover Replace the cover as follows. crimping, abrasion, or cutting while installing the cover. Check that the ribbon cables are folded along their fold lines and out of the direct path of the cover. Position the cover over the side of the chassis so that the back edge of the cover is about an inch beyond the back edge of the chassis (see the following figure).
Page 63: Removing The Front Panel
Firmly press the cover against the chassis and slide the cover towards the front of the chassis until it locks in place. Note If the cover does not slide all the way to the front of the chassis, check that the cover tabs at the front of the cover are properly inserted into their slots in the chassis.
Page 64: Replacing The Front Panel
Replacing the Front Panel Replace the front panel as follows. Align the three tabs ( ) on the lower edge of the chassis (see the following figure). Insert the tabs into their slots and press the front panel up against the chassis until the front panel locks in place.
Page 65: Removing The Retainer Bar
Locating Expansion Board Slots and Connectors A – PCI Expansion Board Connectors B – PCI Expansion Board Slots Removing the Retainer Bar Expansion boards and slot covers are held in place by a retainer bar. Remove the retainer bar before removing or replacing expansion boards or slot covers. Remove the retainer bar as follows.
Page 66: Removing An Expansion Board
Removing an Expansion Board Remove an expansion board as follows. Remove the cover (see “Removing the Cover” earlier in this section). Label and unplug any cables connected to the board. Remove the retainer bar (see “Removing the Retainer Bar”). Pull the board out of the connector and expansion slot. Set the board on an antistatic surface.
Page 67: Installing A Slot Cover
Installing a Slot Cover Install a slot cover as follows. Slide the slot cover into the expansion board slot (see the following figure). Make sure the narrowed end of the slot cover goes into the metal strap. Its top edge should fit around the raised hole in the edge of the chassis.
Page 68: Installing An Expansion Board
Installing an Expansion Board Install an expansion board as follows. Remove the cover (see “Removing the Cover” earlier in this section). Follow any preinstallation instructions that come with the expansion board (such as setting jumpers on the board). Remove the retainer bar that secures the expansion boards (see “Removing the Retainer Bar”).
Page 69: Replacing The Retainer Bar
Replacing the Retainer Bar Install the retainer bar as follows. Hold the retainer bar at an angle and insert the ends ( the following figure). Push the bar into the slots and under the edge of the chassis. Press down on the lock tabs ( slots ( ).
Page 70: Rimm Memory Modules
RIMM Memory Modules See the following sections for procedures on removing or installing a RIMM memory module or a continuity module. See Section 4, “System Boards,” for RIMM module upgrade paths and guidelines for selecting RIMM modules. Removing a RIMM or Continuity Module Remove a RIMM module or a continuity module as follows.
Page 71: Removing A Continuity Module
Ensure that both RIMM sockets are filled with two RIMM modules or one RIMM module and one continuity module. If both sockets are not filled, system memory won’t work well or at all. Removing a Continuity Module A – Plastic Clip (2) Removing a RIMM Module A –...
Page 72: Installing A Rimm Or Continuity Module
Installing a RIMM or Continuity Module Install a RIMM module or a continuity module as follows. Remove the cover (see “Removing the Cover” earlier in this section). If you need to remove a currently installed RIMM or continuity module, see “Removing a RIMM or Continuity Module”...
Page 73: Installing A Rimm Module
Installing a RIMM Module A – RIMM Module C – Plastic Clip (2) B – Notches Installing a Continuity Module A – Continuity Module C – Plastic Clip (2) B – Notches Disassembly and Reassembly 3-15...
Page 74: Processor
Processor The system board has a Socket 370 for mounting a Celeron or Pentium III processor. processor, system board, or both. Carefully follow the installation instructions provided with the upgrade processor and the procedures in the following sections. Ensure that you have the correct heat sink for the processor being installed. Do not use the heat sink from the removed processor.
Page 75: Installing An Upgrade Processor
Ensure that the update processor has the correct heat sink (refer to the documentation that comes with the kit). Additional information can be obtained from NECC (see Section 8, “NEC Information Services” for information on contacting NECC).
Page 76: 1/4-Inch Accessible Devices
Install a replacement heat sink and fan as follows and in accordance with the procedures contained in the heat sink kit. If the kit includes a thermal pad, center it on top of the processor. Align the heat sink and fan assembly with the processor and set it down on the processor (see the previous figure for alignment).
Page 77: Removing Or Replacing A Bay Cover
Removing or Replacing a Bay Cover If the system has an empty 5 1/4-inch device bay, it is covered with a special bay cover. This cover physically protects the inside of the chassis, and its metal shielding also offers EMF protection.
Page 78: Replacing A Bay Cover
Replacing a Bay Cover Replace a bay cover on a bay as follows. Note Place unused rails back in the empty bay before attempting to replace a bay cover. The bay cover cannot be secured over the bay if the rails are absent. If necessary, put the rails back in the bay.
Page 79: Removing Or Installing Device Rails
A – Front of Chassis B – Device Rail Press the rail against the wall of the bay with your thumb and press the tab toward the center of the bay with your forefinger. Still pressing the tab, slide the rail into the bay along the guides until its tab clicks in place. Place a bay cover over the empty bay (see “Replacing a Bay Cover”).
Page 80: Removing A 5 1/4-Inch Accessible Device
Removing a 5 1/4-Inch Accessible Device Remove the system unit cover and front panel (see “Removing the Cover” and “Removing the Front Panel”). system power cable. Power is removed only when the power cable is unplugged. Tag and unplug the power and signal cables connected to the device. Press the tabs on either side of the device inward to unlatch the device from the chassis (see the following figure).
Page 81: Installing A 5 1/4-Inch Accessible Device
Installing a 5 1/4-Inch Accessible Device Note Install rails on the new device before attempting to insert the new device in the system. Use the rails from the old device or the empty bay. Remove the system unit cover and front panel (see “Removing the Cover” and “Removing the Front Panel”).
Page 82: 1/2-Inch Accessible Devices
3 1/2-Inch Accessible Devices The 3 1/2-inch accessible devices in the system are housed in a two-device bracket. The bracket installs in the lowest bay of the accessible device cage, much like a 5 1/4-inch accessible device. This applies equally to the desktop or minitower configuration. The following sections describe how to remove and install 3 1/2-inch accessible devices in the system.
Page 83: Installing A 3 1/2-Inch Accessible Device
The 3 1/2-Inch Accessible Device Bracket A – Side Tabs on Bracket Cover B – Drive Screws (two of four) Slide the device out the front of the bracket. If you are installing another 3 1/2-inch accessible device, see “Installing a 3 1/2-Inch Accessible Device.”...
Page 84: 1/2-Inch Internal Drives
Secure the new device to the bracket with four screws, two to a side (see the figure “The 3 1/2-inch accessible device bracket” in the previous section). Press the bracket cover over the front shield so the two side tabs click into place (see the figure “The 3 1/2-inch accessible device bracket”...
Page 85: Locating Internal Drive Bracket Screws
Locating Internal Drive Bracket Screws A – Screws Slide the bracket back about one quarter inch. The tabs on the bracket should slide out of the guides on the side of the accessible device cage (see the following figure). Sliding the Internal Drive Bracket out of the Chassis A –...
Page 86: Installing A 3 1/2-Inch Internal Drive
Locating Internal Drive Screws on the Bracket A – Screws (2 of 4) B – Screw Holes (2 of 4) Slide the device out the front of the bracket. If you are installing a new 3 1/2-inch internal drive, see “Installing a 3 1/2-Inch Internal Drive.”...
Page 87: Locating Guides For The Internal Drive Bracket
Locating Guides for the Internal Drive Bracket Support the bracket within the chassis while you replace the screws at the front of the chassis. Securing the Internal Drive Bracket A – Screws Reconnect the power and signal cables for all devices in the drive bracket. Replace the front panel (see “Replacing the Front Panel”).
Page 88: Cmos Battery
CMOS Battery The system board uses a CMOS battery to maintain system configuration information. The battery is a coin-cell battery mounted on the system board (see the following figure). If it fails to maintain system configuration information, replace it with an identically rated battery from the same manufacturer.
Page 89: System Board
A – Battery With the positive (+) side of the new battery facing up, press the battery into the socket. Replace the system cover (see “Replacing the Cover”). Connect external peripherals and power cables, and power up the system. Run the Setup Utility to reconfigure your system parameters (see “BIOS Setup Utility” in Section 2).
Page 90: Reinstalling The System Board
Locating System Board Screws A – System Board Screws Ensuring you do not touch any components, carefully lift the system board out of the chassis. If you are discarding the board, first remove useable memory modules, the processor, or cables, as appropriate. Set the system board aside on a stable static-free surface.
Page 91: Power Supply
Power Supply Remove the power supply as follows. system power cable. Power is removed only when the power cable is unplugged. Turn off the system and any connected peripherals. Unplug the system AC power cord and any peripheral power cords. Disconnect any attached peripherals.
Page 92: Front Usb Port
Front USB Port Remove the front USB port using these steps. Remove the system unit cover and front panel (see “Removing the Cover” and “Removing the Front Panel”). Disconnect the front USB port cable from its header on the system board. Remove the two screws that secure the USB port to the front of the chassis.
Page 93: Releasing The Front Led/Switch Bracket
Releasing the Front LED/Switch Bracket A – Front LED/Switch Bracket Open the LED/switch bracket toward the left. Once the right tabs are free, the hooked left tabs can be freed. Removing the Front LED/Switch Bracket Gently feed the LED/switch cable assembly through the cutout in the front of the chassis. To replace the LED/switch bracket, reverse these steps.
Page 94: Chassis Intrusion Switch
Chassis Intrusion Switch If installed, remove the chassis intrusion switch from the rear edge of the chassis using these steps. Remove the cover (see “Removing the Cover”). Disconnect the chassis intrusion switch cable from its header on the system board. Press together the tabs that hold the chassis intrusion switch to the chassis (see the following figure).
Page 95: Minitower And Desktop Setup
Minitower and Desktop Setup The system ships as a minitower and can be reconfigured as a desktop or, if a desktop, it can be reconfigured back to a minitower. The accessible devices in the system can be positioned so they are upright for the minitower orientation or for the desktop orientation. The following sections describe how to convert between minitower and desktop orientations.
Page 96: Converting From Desktop To Minitower
Accessible Device Placement for a Desktop A – 5 1/4-Inch Bays on Top Remove the logo plate by unclipping its tabs from inside the front panel. Position the logo plate so it is readable when the chassis is in the horizontal position. Press the tabs into the front panel until they click in place.
Page 97: Accessible Device Placement For A Minitower
Replace all devices, covers, and rails in the accessible device cage so they sit sideways in the drive cage, with their top surfaces toward the right end of the chassis (see the following figure). Place them in the same order they were in before. See the following sections for the procedures.
Page 98: Chassis Shell
Chassis Shell Note The chassis shell (the U-shaped covering with rubber feet on two sides) should only be removed by authorized service personnel. No replaceable parts are accessed from this panel, and it should only be removed if it is being replaced due to damage. The chassis shell is secured to the chassis with two screws on the rear face of the chassis, and three screws on the front face of the chassis.
Page 99: System Board
System Board External Cable Connectors Internal Cable Connectors Jumper Settings Upgrade Sockets Components Resources...
Page 100: Minitower External Cable Connector Locations
This section describes the locations of connectors, jumpers, and sockets on the system board, including any external cable connectors, internal board connectors and slots, jumper locations, and upgrade sockets. Included in this section are procedures for setting jumpers on the system board and a RIMM memory upgrade path for the RIMM sockets.
Page 101: Desktop External Cable Connector Locations
Desktop External Cable Connector Locations A – Mouse Connector B – Parallel Port C – MIDI/Game Port D – VGA Connector (on video board) E – Microphone In F – Line In Internal Cable Connectors Locations of the internal cable connectors on the system board are shown in the following figure.
Page 102: Jumper Settings
Jumper Settings The following sections provide the names and locations of jumpers on the system board, and provides instructions on changing a jumper setting. Locating System Board Jumpers The following figure shows the locations of the jumpers on the system board. System Board Jumper Locations A –...
Page 103: Upgrade Sockets
Locate the jumper on the system board (see the preceding figure, “System Board Jumper Locations”). Remove any subassemblies blocking access to the jumper (see Section 3, “Disassembly and Reassembly,” for procedures). Change the jumper setting by moving the jumper to or from the pins as indicated in the jumper settings tables (see “System Board Jumper Settings”...
Page 104: Processor Socket
Processor Socket The processor installs in a 370-pin Socket 370 on the system board. The processor is held in place in the socket by a locking lever attached to the socket and a removable retention clip. The retention clip anchors both the processor and the processor heat sink to the Socket 370. To remove or install a processor, see Section 3, “Disassembly and Reassembly.”...
Page 105: Checking System Memory
Checking System Memory If you do not know how much memory is installed in the system, check the amount by using the following procedure. On the Windows desktop, point to With the left mouse button, click access memory (RAM). This is the amount of system memory in the computer. In Windows 98 or Windows 2000, you can also find the amount of memory by pointing to My Computer , clicking the right mouse button, clicking...
Page 106: System Board Components
— serial devices through two buffered 16C550 UART serial ports, supporting up to 115.2 KB per second — two USB devices — joystick through the MIDI/game port — speaker and microphone connectors (line in, line out, microphone in). The following table lists the major components on the system board. Component Pentium III Processor Intel 820 Chipset:...
Page 107: Processor And Secondary Cache
Component Winbond Super I/O W83627HF- AW controller Yamaha Sound YMF 752-S Processor and Secondary Cache The system uses a Pentium III processor with an internal clock speed of 533 MHz or higher (depending on type of processor). The processors are advanced pipelined 32-bit addressing, 64-bit data processors designed to optimize multitasking operating systems.
Page 108: System Memory
The FLASH ROM allows the system and video BIOS to be upgraded with the BIOS Update Utility, without having to physically remove the ROM (see Section 2 for further information on the BIOS Update Utility). The FLASH ROM supports the reprogramming of the system BIOS and the video BIOS.
Page 109: Serial Interface
Starting I/O Address Parallel interface signals are output through the system board’s 25-pin, D-subconnector. The connector is located at the back of the system unit. Serial Interface The system has two 16C550 UART compatible serial ports (COM1 and COM2) integrated on the I/O controller.
Page 110: Usb Interface
USB Interface The Universal Serial Bus (USB) ports allow plug and play serial devices to be added without having to open the system. One USB device can be plugged into each USB port for direct system connection. With a hub and the proper cabling, up to 127 USB devices per port can be addressed by the system.
Page 111: Resources
Resources The system memory map, I/O addresses, and DMA settings are given in the following sections. System interrupt settings, parallel interrupt settings, and serial interrupt settings are included in Section 2, “System Configuration.” Memory Map The system memory map is shown in the following table. Memory Space 000A0000 - 000AFFFF 000B0000 - 000BFFFF...
Page 112 Address (Hex) 00C0-00DF 00F0-00FE 0170-0177 01F0-01F7 0200-0207 02F8-02FF 0300-0301 0376 0378-037F 03B0-03BB 03C0-03DF 03F0-03F3 03F4-03F5 03F6 03F7 03F8-03FF 0778-077F 0CF8-0CFF 1200-12FF 1300-133F 1800-1807 1800-180F 1810-181F 1820-183F 4-14 System Board I/O Address Map I/O Device Name DMA controller Numeric data processor Secondary IDE channel/Intel 82801AA Bus Master IDE controller Primary IDE channel/Intel 82801AA Bus Master...
Page 113: Dma Settings
DMA Settings The system’s DMA settings are given in the following table. DMA Setting DMA Settings Device Available Available Standard Floppy Disk Controller ECP Printer Port (LPT 1) Direct memory access controller Available Available Available System Board 4-15...
Page 114: Illustrated Parts Breakdown
Illustrated Parts Breakdown Ordering Parts Field Replaceable Units Illustrated Parts Breakdown...
Page 115: Powermate Ct System Fru
The PowerMate CT system illustrated parts breakdown figure is at the end of this section. Ordering Parts Use the telephone number in the following table to order spare parts.
Page 116 Front Panel USB Port Board Assembly 10-GB or higher EIDE Smart Hard Drive, 5400 rpm or higher, DMA/66 10-Watt Speakers w/Cables and Power Adapter, NEC (not shown) Speaker Power Adapter (not shown) Logo, NEC PowerMate (not shown) * Built-to-order component...
Page 117: Powermate Ct System Illustrated Parts Breakdown
Illustrated Parts Breakdown The following figure shows the illustrated parts breakdown (IPB) for the PowerMate CT system. Each FRU on the IPB is identified with a number that cross-references to the FRU list. PowerMate CT System Illustrated Parts Breakdown 5-4 Illustrated Parts Breakdown...
Page 118: Preventive Maintenance
Preventive Maintenance System Cleaning Keyboard Cleaning Mouse Cleaning...
Page 119 This section contains general information for cleaning and checking the system, 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 is required. present inside the system and monitor even after the power is off.
Page 120: Locating The Mouse Ball Cover
Mouse Cleaning The mouse has a self-cleaning mechanism that prevents a buildup of dust or lint around the mouse ball and tracking mechanism under normal conditions. Periodically, however, the mouse ball must be cleaned. Use the following procedure to clean the mouse. Note The following procedure describes the general procedure for cleaning a typical mouse.
Page 121: Troubleshooting
Troubleshooting Checklist Diagnostics...
Page 122: System Problems
This section provides information to help isolate and repair system malfunctions at the field level. The system has a built-in program that automatically checks its components when the system is powered on. If there is a problem, the system displays an error message. If this happens, follow any instructions on the screen.
Page 123: Diskette Drive Problems
System performance appears sluggish. Check that the system is set for optimal operation. See the operating system documentation. Check the memory requirements of the software applications. If required, install additional RIMM memory (see Section 4, “System Board,” information on installing memory). If optional RIMM memory was added, check that it is correctly installed.
Page 124: Keyboard/Mouse Problems
Distorted image appears on the monitor screen. Adjust the monitor’s video controls. If this does not help, turn the monitor off for several seconds, then back on. There is constant movement on the screen. A magnetic field is affecting the monitor. Move any devices (fan, motor, another monitor) that generate magnetic fields away from the monitor.
Page 125: Speaker Problems
The CD does not eject due to a power failure or software error. Insert the end of a paper clip into the CD-ROM emergency eject hole. Press inward on the clip to open the CD-ROM door. The CD-ROM drive plays music CDs but the sound is not heard. Check that the speaker power is on (see “Speaker Problems”).
Page 126: Diagnostics
Diagnostics 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 the following table. The table summarizes problems that may develop during system operation and lists (in sequential order) suggested corrective actions.
Page 127 Problem Symptom Operating system System halts during loading does not boot sequence. (cont’d) Diskette drive Lamp on drive panel does not does not work light when diskette is loaded. Hard drive Hard drive lamp does not light malfunction but hard drive can be accessed.
Page 128 Problem Symptom Keyboard or Monitor has prompt, but mouse cannot input data using malfunction keyboard or mouse. Monitor Unable to synchronize malfunction display. Wavy display. Blank display. CD-ROM drive System power not on. malfunction Disc tray does not open. 7-8 Troubleshooting Problems and Solutions Solution Check keyboard/mouse plugged in.
Page 129 Problem Symptom CD-ROM drive No sound from CDs. malfunction (cont’d) Cannot access CD-ROM drive. Problems and Solutions Solution Check that speaker power is on and volume is adjusted. Check audio software settings. Check the CD. Check the CD-ROM drive audio cable connections.
Page 130: Necc Information Services
NECC Information Services Service Telephone Numbers Technical Support...
Page 131: Necc Website
Reseller’s area (password accessible). To access the NECC Home Page, enter the following Internet Uniform Resource Locator (URL) in your browser. www.nec-computers.com 8-2 NECC Information Services Telephone Numbers In the U.S. and Canada, call...
Page 132: Necc Ftp Site
The NECC Technical Support Center offers technical support by Internet email if you have access. The Internet email address is: tech-support@nec-computers.com You can also fax technical questions to the NECC Technical Support Center if you have access to a fax machine or fax/modem. The fax number is:...
Page 133: Specifications
Specifications System Board Keyboard Mouse Speakers System Unit Hard Drives Diskette Drive CD-ROM Drives CD-RW Drive DVD-ROM Drives Zip Drive Modem Boards Network Boards ATX Power Supply Environmental and Safety Compliance...
Page 134: System Board Specifications
This section contains the specifications for the various components comprising the PowerMate CT systems. The following table lists the specifications and the pages where the specifications can be found. Specification System board Keyboard Mouse Speakers System Unit Hard drives Diskette drive...
Page 135: Keyboard Specifications
Feature Chip Set I/O Controller System Memory Optional RIMM Modules Sound Graphics Memory Battery Keyboard Specifications The specifications for the keyboard are included in the following table. Feature Keyboard Dimensions Weight Mouse Specifications The specifications for the mouse are included in the following table. Feature Physical Features Temperature Range...
Page 136: Speaker Specifications
Speaker Specifications The specifications for the optional speaker set are included in the following table. Feature Speakers Features Performance System Unit Specifications The specifications for the system unit are included in the following table. Feature Dimensions (minitower) Dimensions (desktop) Weight Device Slots Expansion Board Slots...
Page 137: Hard Drive Specifications
Hard Drive Specifications Systems come with a 10-GB or higher Ultra DMA/66 hard drive capable of 5,400 or higher rotations per minute (RPM). The specifications for typical hard drives are provided in the following tables. Feature Hard Drive Features Typical Seek Time Average Track-to-Track Full Stroke...
Page 138: Maxtor 5,400 Rpm Hard Drive Specifications
Maxtor 5,400 RPM Hard Drive Specifications Feature Model Heads/Disks 15.4 MB 20.5 MB 30.7 MB Seek Times (typical) Track to Track Average Maximum Average Latency Rotation Speed Data Transfer Rates to/from interface to/from media Interface Buffer Size Buffer Type Data Zones per Surface Bytes per Sector/Block Temperature (non- condensing)
Page 139: Maxtor 7,200 Rpm Hard Drive Specifications
Maxtor 7,200 RPM Hard Drive Specifications Feature Specification Model 20.5 MB — 52049U4 30.7 MB — 53073U6 Heads/Disks Seek Times (typical) Track to Track 1 ms Average < 9.0 ms Maximum < 20 ms Average Latency 4.17 ms Rotation Speed 7,200 Data Transfer Rates to/from interface...
Page 140: Diskette Drive Specifications
Specifications for a typical diskette drive are included in the following table. Feature Recording Capacity Data Transfer Rate *Specifications may vary by model. CD-ROM Drive Specifications The specifications for the NEC 40X CD-ROM drive are included in the following table. Feature 40X CD-ROM Drive Interface Access Time Data Transfer Rate, Max:...
Page 141: Cd-Rw Drive Specifications
CD-RW Drive Specifications The specifications for the 8x4x32x CD-RW drive are included in the following table. Feature CD-RW Drive Write/Read Speeds: Data Transfer Rate Access Time Buffer Size Interface Writing Method: Dimensions Width Depth Height *Specifications may vary by model. DVD-ROM Drive Specifications The specifications for a typical 12X DVD-ROM drive are included in the following table.
Page 142: Zip Drive Specifications
Feature Humidity Weight Dimensions *Specifications may vary by model. Zip Drive Specifications The specifications for the 250-MB Zip drive are included in the following table. Feature Zip Drive Sustained Data Transfer Rate Seek Times: Removable Zip Cartridge Capacity Dimensions: Weight Relative Humidity (Noncondensing) Operating Temperature...
Page 143: Modem Board Specifications
Modem Board Specifications The specifications for a typical optional modem board are included in the following table. Feature Modem Board Data (maximum speed) Error Control and Data Compression *Specifications may vary by model. Network Board Specifications The specifications for the optional network boards are included in the following tables. 3Com 3C905C Network Board Specifications Feature Topology...
Page 144: Atx Power Supply Specifications
Intel PRO 100+ WOL Network Board Specifications Feature Topology Network Management Data Rates Onboard Memory Data Transfer Mode Controller Power Requirement Operating Temperature Operating Humidity ATX Power Supply Specifications The specifications for the ATX 235-watt power supply is included in the following table. Feature Power Supply Voltage...
Page 145: System Compliance
Compliance The system meets the compliance standards listed in the following table. Usage Domestic Canadian European Energy Star The system meets all requirements in the European Waste Regulation Ordinance for packaging and scrap. System Compliance Standard FCC CFR 47 Part 15, Subpart B UL 1950 3rd edition C-UL C22.2 No.
Page 146 Glossary access time The time period between the supply of an access signal and the output or acceptance of the data by the addressed system. Examples are the access times for DRAMs, SRAMs, hard drives, and CD-ROM drives. Hard drive access time is the time it takes for a computer to get data from the drive.
Page 147 Advanced Power Management. An API developed by Intel and Microsoft that allows developers to include power management in the BIOS. APM defines a layer between the hardware and the operating system that effectively shields the programmer from hardware details. application programs Software designed to perform specific functions or a group of functions, like solving business or mathematical problems.
Page 148 bad sector Part of a hard drive or diskette drive storage medium that doesn’t hold data. Formatting generally detects and marks these areas so they won’t be used. Certain utility programs do, too, and it is a good idea to run this type of utility occasionally to prevent data loss if the condition of the drive changes.
Page 149 bitmap Any occurrence where a single location in memory and a single pixel correspond. Usually applies to screen or printer output. .BMP files are bitmapped graphics files. bits per second (bps) A unit of transmission. Also called baud rate. block A contiguous section of bits considered as a whole, especially in memory.
Page 150 A parallel electrical pathway on the system board, connecting and shared by the parts of a computer system (especially the CPU, its support circuitry, memory, and expansion cards), used for transmitting data or electrical power from one device to another. Typically the lines in a bus are dedicated to specific functions, such as control lines, address lines, and data lines.
Page 151 CMOS Complementary Metal Oxide Semiconductor. A chip on the system board that contains nonvolatile memory. CMOS is backed up by an internal lithium battery that preserves clock/calendar data and system configuration parameters stored in CMOS. codec Coder-decoder. Used primarily with Internet phone and video conferencing products, this software compresses digitized data and decompresses it at the other end, allowing for faster data transfer and less delays cold boot...
Page 152 Digital versatile disc or digital video disc. A type of CD-ROM that holds a minimum of 4.7 GB, enough for a full-length movie. The DVD specification supports disks with capacities of from 4.7 GB to 17 GB and access rates of 600 Kbps to 1.3 Mbps. One of the features of DVD drives is that they are backward-compatible with CD-ROM disks.
Page 153 File Transfer Protocol. A method of transferring files between two computers on a TCP/IP network (such as the Internet). “Anonymous FTP” (the most common usage on the Internet) allows a user to download files without having an account at the remote computer. function key The set of keys on the keyboard (usually F1 through F12) that let you get help and error message information or quickly select frequently used commands.
Page 154 interrupt A signal from part of a system, such as an I/O device, asking to use the CPU. Interrupts are hierarchical, which prevents interrupts from interrupting each other. (Whichever interrupt has higher priority makes the other interrupt wait.) When the CPU receives an interrupt signal, it saves what it is doing, processes the routine associated with the interrupt, then returns to what it was doing.
Page 155 master Part of a two-sided communication that initiates commands (to a “slave” that carries out the commands). megabyte (MB) 1,048,576 bytes. memory Electronic storage area in a computer that retains information and programs. A computer has two types of memory: read-only memory (ROM) and random access memory (RAM). microprocessor A semiconductor central processing unit that is the principal component of a microcomputer.
Page 156 operating system Set of programs that manage the overall operation of the computer. overwrite Storing information at a location where information is already stored, thus destroying the original information. page A type of message transmission in which a message is sent or received via modem to a paging device from a computer (with paging communications software) or telephone.
Page 157 port Any connection by which data can enter or leave a computer or peripheral. Provides the means for an interface between the microprocessor and external devices. A cable connector is usually plugged into the port to attach the device to the computer. processor In a computer, a functional unit that interprets and executes instructions.
Page 158 SMART Self-Monitoring Analysis and Reporting Technology. A hard drive feature that works in conjunction with system software (for example, LANDesk Client Manager, NEC Auto Backup) for identifying a potential problem on the hard drive and automatically backing up system files to a user-specified device, such as a tape or Zip drive.
Page 159 system board The main printed circuit board inside the system unit into which other boards and major chip components, such as the system microprocessor, are connected. Tracks per inch. track Any of many concentric circular regions on a disk for storing data. Tracks are divided into sectors.
Page 160 VRAM Video RAM. VRAM is special-purpose memory used by video adapters. Unlike conventional RAM, VRAM can be accessed by two different devices simultaneously. This enables a video adapter to access the VRAM for screen updates at the same time that the CPU provides new data.
Page 161 Index 3 1/2-inch accessible device locating, 1-4 3 1/2-inch internal device installing, 3-28 removing, 3-26 3 1/2-inch internal device bracket installing, 3-28 removing, 3-26 5 1/4-inch accessible device guidelines for replacing, 3-18 installing, 3-23 locating, 1-4 removing, 3-22 Accessible device cage, 3-26 Addresses parallel port, 4-10 serial port I/O, 4-11...
Page 162 Diskette flash, 2-25 Diskette drive, 1-5 features, 1-13 specifications, 9-8 DMA settings, 4-15 Documentation, Online, 2-26 Drives diskette, 1-5 DVD-ROM, 1-5 Zip, 1-5, 1-14 DVD-ROM drive, 1-5 features, 1-14 specifications, 9-9 speed, 1-5 Environmental and Safety specifications, 9-12 Expansion boards installing, 3-10 locating connectors, 3-6 locating slots, 3-6...
Page 163 1-8 Mouse cleaning, 6-3 features, 1-14 specifications, 9-3 NEC PowerMate Driver CD features, 1-10 NEC Product Recovery Program CD features, 1-10 NECC email/fax support, 8-3 FTP site, 8-3 Information Services, 8-2 Service telephone numbers, 8-2 technical support, 8-2...
Page 164 4-6 RIMMs, 4-6 USB ports, 1-5 front, removing, 3-34 Utilities, 1-10 BIOS Setup, 2-8 NEC Product Recovery Program, 1-10 Norton AntiVirus, 1-10 Virus protection, Norton, 1-10 Wake On Ring, 1-9 Windows Network Security, 1-11 Windows operating systems, 1-10 Zip drive, 1-5...
Page 165: Regulatory Statements
Regulatory Statements The following regulatory statements include the Federal Communications Commission (FCC) Radio Frequency Interference Statement, compliance statements for Canada and Europe, battery disposal and replacement information, and the Declaration of Conformity. FCC Statement for United States Only the party responsible for compliance could void the user’s authority to operate the equipment.
Page 166: Battery Disposal
incorrect de la batterie. Remplacer uniquement avec une batterie du même type ou d’un type recommandé par le constructeur. Mettre au rébut les batteries usagées conformément aux instructions du fabricant. Battery Disposal The CMOS battery is made of lithium. Contact your local waste management officials for other information regarding the environmentally sound collection, recycling, and disposal of the batteries.
Page 167 456-00134-000SRV NEC Computers Inc. 15 Business Park Way 8/00 Sacramento, CA 95828 www.nec-computers.com...

NEC PowerMate CT Service And Reference Manual

1 System Overview

2 System Configuration

3 Disassembly and Reassembly

4 System Board

5 Illustrated Parts Breakdown

6 Preventive Maintenance

7 Troubleshooting

8 NECC Information Services

9 Specifications

Regulatory Statements

Quick Links

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Summary of Contents for NEC PowerMate CT

Table of Contents