NEC PowerMate 466M Manuals

Manuals and User Guides for NEC PowerMate 466M. We have 1 NEC PowerMate 466M manual available for free PDF download: Service Manual

NEC PowerMate
466M Service Manual

NEC PowerMate 466M Service Manual (184 pages)

Brand: NEC | Category: Desktop | Size: 1.55 MB

Table of Contents

Table of Contents
2
Preface
11
Abbreviations
12
Section 1 Technical Information

14
- Desktop System Unit
  14
- Minitower System Unit
  15
  - System Board
    16
    
    Processor
    18
    
    Secondary Cache
    18
    
    Flash ROM
    19
List of Tables

19
- System Memory Map
  19
  - Power Management
    20
  - I/O Addressing
    21
- I/O Address Map
  21
  - System Memory
    22
  - Interrupt Controller
    22
  - Video Controller
    23
- Interrupt Level Assignments
  23
  - Video Memory
    25
- Text Modes
  25
- Graphic Modes
  26
  - ISA/VL-Bus Backboard
    27
    
    ISA Bus
    27
    
    VL-Bus
    27
  - Parallel Interface
    28
- Parallel Port Addressing and Interrupts
  28
  - Serial Interface
    29
  - Indicator Panel
    29
- Serial Port Addressing and Interrupts
  29
- Power Supply
  30
- Diskette Drive
  30
- Hard Disk Drive
  30
- Keyboard
  30
Section 2 Setup and Operation

31
- Unpacking and Repacking
  31
- Setup
  31
Appendix B Specifications

32
- Desktop Voltage Selector Switch
  32
- Desktop Peripheral Connections
  33
- Desktop Lamps, Reset Button, and Power Button
  33
  - Minitower Setup
    35
- Minitower Voltage Selector Switch
  35
- Minitower Peripheral Connections
  36
- Minitower Indicators, Reset Button, and Power Button
  36
- System Configuration
  38
  - Setup Utility
    38
  - How to Start Setup
    39
  - How to Use Setup
    39
    
    Menu Bar
    40
    
    Legend Bar
    41
    
    Field Help Window
    41
- Setup Key Functions
  41
  - General Help Window
    42
  - Main Menu Options
    42
- Legend Bar Main Menu Parameters
  42
  - IDE Adapters
    43
  - Memory Shadow
    44
- IDE Hard Disk Parameters
  44
  - Memory Shadow Parameters
    44
  - Boot Sequence
    45
  - Numlock
    45
- Boot Parameters
  45
  - Advanced Menu
    46
    
    Integrated Peripherals Menu
    46
- Numlock Parameters
  46
  - Parity
    47
- Integrated Peripherals Parameters
  47
  - Large Disk Access Mode
    48
  - Security Menu
    48
- Large Disk Parameters
  48
- System Security Options
  49
  - Power Menu
    50
- Power Management Parameters
  50
  - Exit Menu
    51
    
    Save Values & Exit
    51
    
    Discard Values & Exit
    51
    
    Get Default Values
    51
    
    Load Previous Values
    51
    
    Save Current Values
    52
- BIOS Update Utility
  53
- System Board Jumpers
  54
- System Configuration Jumpers
  55
Section 3 Options

57
Section 4 Maintenance and Troubleshooting

101
- NEC Service and Information Telephone Numbers
  101
- Maintenance
  102
  - System Unit
    102
  - Keyboard
    103
- Removing the Keyboard Enclosure
  103
  - Mouse
    104
  - Routine Checks
    104
- Troubleshooting
  105
  - Error Messages
    105
  - BIOS Update Utility Error Messages
    105
  - Diagnosing and Solving Problems
    106
- Problems and Solutions
  106
  - Diagnostic Output and Beep Codes
    110
- Diagnostic Output and Beep Codes Looped on Post
  112
Section 5 Desktop Repair

113
- Disassembly and Reassembly
  113
- Powermate Desktop Disassembly Sequence
  113
  - Top Cover Removal
    115
- Top Cover Screws
  115
  - Expansion Board Removal
    116
- Removing the Top Cover
  116
- Expansion Slot Screw
  117
- Inside Expansion Slot Screw
  117
- Removing the Expansion Slot L-Bracket
  118
  - ISA/VL-BUS Backboard Removal
    119
  - Front Panel Assembly Removal
    119
  - ISA/VL-Bus Backboard Screws
    119
- Indicator Panel Connectors
  120
  - Power Button Cover Removal
    121
  - Speaker Assembly Removal
    122
- Speaker Screw
  122
  - SIMM Removal
    123
  - SIMM Socket
    123
  - 1/2-Inch Diskette and Hard Disk Drive Removal
    124
- Inch Drive Bracket Screws
  124
- Inch Diskette and Hard Disk Drive Screws
  125
  - Optional 5 1/4-Inch Device Removal
    126
- Inch Device Screws
  126
  - 1/4-Inch Device Cage Removal
    127
  - Power Supply Removal
    128
- Power Button Screws
  128
  - System Board Removal
    129
- Power Supply Screws
  129
- System Board Connectors and Screws
  130
- Connector Identifiers
  130
  - Battery Removal
    131
- Battery Replacement
  131
  - Illustrated Parts Breakdown
    132
- Powermate Desktop Field-Replaceable Parts List
  132
- Powermate Desktop Illustrated Parts Breakdown
  134
- Powermate Desktop Options
  135
- Powermate Desktop Documentation and Packaging
  136
Section 6 Minetower Repair

137
- Powermate Minitower Disassembly Sequence
  137
- Disassembly and Reassembly
  137
  - Top Cover Removal
    139
- Top Cover Screws
  139
- Removing the Top Cover
  140
  - Expansion Board Removal
    141
- Expansion Slot Screw
  141
- ISA/VL-Bus Backboard Bracket Screws
  142
  - ISA/VL-BUS Backboard Removal
    142
  - ISA/VL-Bus Backboard Screws
    142
  - Front Panel Assembly Removal
    143
- Front Panel Screws
  143
- Power Button Tabs
  144
  - Power Button Cover Removal
    144
  - Speaker Assembly Removal
    145
- Speaker Tabs
  145
- SIMM Socket
  146
  - SIMM Removal
    146
  - 1/2-Inch Diskette Drive Removal
    147
  - Inch Diskette Drive Cables
    147
- Diskette Drive Bracket Screws
  148
  - 1/2-Inch Hard Disk Drive Removal
    149
  - Inch Hard Disk Drive Cables
    149
- Right Side Device Screws
  150
  - 1/4-Inch Device Removal
    151
- Left Side Device Screw Access Holes
  151
  - 1/4-Inch Device Cage Removal
    152
    
    Inch Device Cage Screws
    152
    
    Power Button Screws
    153
  - Power Supply Removal
    153
  - Power Supply Screws
    154
  - System Board Removal
    154
- Connector Identifiers
  155
  - System Board Connectors and Screws
    155
  - Battery Removal
    156
  - Battery Replacement
    156
- Powermate Minitower Field-Replaceable Parts List
  157
  - Illustrated Parts Breakdown
    157
- Powermate Minitower Illustrated Parts Breakdown
  159
- Powermate Minitower Options
  160
- Powermate Minitower Documentation and Packaging
  161
Appendix A Connector Pin Assignments

164
- Serial Interface Connectors
  164
- Parallel Interface Connector
  165
- VGA Interface Connector Pin Assignments
  166
- Speaker Connector Pin Assignments
  166
- Power Supply Connectors
  167
- Keyboard and Mouse Connectors
  167
- Power Lamp Connector
  168
- Hard Disk Drive Lamp Connector
  168
- Reset Button Connector
  168
- Diskette Drive Interface Pin Assignments
  169

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