User Manuals: NEC Direction 300L Desktop Computer

Manuals and User Guides for NEC Direction 300L Desktop Computer. We have 1 NEC Direction 300L Desktop Computer manual available for free PDF download: Service Manual

NEC Direction 300L Service Manual

NEC Direction 300L Service Manual (139 pages)

Desktop and minitower Pentium II systems

Brand: NEC | Category: Desktop | Size: 0.84 MB

Table of Contents

Table of Contents
2
Preface
10
Abbreviations
11
Technical Information

14
Tables

15
- Table 1-1 L Series System Features
  15
- Table 1-2 SPL Series System Features
  16
- System Board
  17
  - Processor
    17
  - System Cache/Memory
    17
  - Table 1-3 SP Series System Features
    17
  - Chipset
    18
  - PCI Local Bus
    18
    
    Expansion Bus
    19
  - Bios
    19
    
    Plug and Play Support
    20
    
    Table 1-4 System Memory Map
    20
  - CMOS Memory/Real-Time Clock Battery
    21
  - DMA/IRQ Settings
    21
  - Table 1-5 Interrupt Level Assignments
    21
  - IDE Ports
    22
  - I/O Ports
    22
  - Table 1-6 DMA Assignments
    22
  - Sound System
    23
- Robotics Modem Board (Optional)
  23
- Diskette Drive
  23
- Hard Disk Drive
  24
- CD-Rom/DVD Drive
  24
- Zip Drive
  24
- Power Supply
  24
- Power Management
  24
Setup Utility

25
- Configuration Information
  25
- When to Use Setup
  25
- How to Start Setup
  26
- How to Use Setup
  27
  - Menu Bar
    27
  - Legend Bar
    28
  - Selecting a Menu Item
    28
  - Displaying a Submenu
    28
  - Getting Help
    28
  - Table 2-1 Setup Key Functions
    28
- Main Menu
  29
  - Floppy Options Submenu
    30
  - Primary/Secondary IDE Master/Slave Submenus
    31
- Advanced Menu
  33
- Security Menu
  38
- Power Menu
  38
- Boot Menu
  39
  - Hard Drive Submenu
    39
  - Removable Drive Submenu
    40
- Exit Menu
  40
Option Installation

41
- General Rules for Installing Options
  41
- Precautions
  42
- Removing the Access Cover
  43
- Figure 3-1 Releasing the Cover
  44
- Figure 3-2 Aligning the Tabs
  44
- Figures
  
  44
- Replacing the Access Cover
  44
- Expansion Boards
  45
- DIMM Upgrade
  47
  - DIMM Removal
    49
  - Table 3-1 Sample Memory Configurations
    49
  - DIMM Installation
    50
  - Figure 3-5 Removing a DIMM
    50
- Data Storage Devices
  51
  - Device Slots
    51
  - Figure 3-6 Installing a DIMM
    51
  - Device Preparation
    52
  - Figure 3-7 Locating Device Slots
    52
  - Device Cables
    53
    
    Diskette Drive Signal Cable
    53
    
    IDE Signal Cables
    53
    
    Figure 3-8 System Board Cable Connectors
    53
    
    Figure 3-9 Diskette Drive Signal Cable
    54
    
    System Power Cables
    55
  - Device Cabling
    56
    
    Cabling an IDE Device
    56
    
    Cabling an Accessible 5 1/4-Inch Device
    57
  - Storage Device Installation
    58
    
    Removing the Front Panel
    58
    
    Removing the CD-ROM/DVD Drive
    58
    
    Installing a 3 1/2-Inch Device
    59
    
    Installing a 5 1/4-Inch Device
    63
    
    Replacing the Front Panel
    64
- Video Upgrade
  51
- Adding External Options
  65
  - Parallel Printer
    65
  - RS-232C Device Connection
    67
Maintenance and Troubleshooting

68
- Table 4-1 NEC CSD Service and Information Telephone Numbers
  68
- Maintenance
  69
  - System Cleaning
    69
  - Keyboard Cleaning
    70
  - Mouse Cleaning
    70
- Troubleshooting
  72
  - Diagnosing and Solving Problems
    72
  - Table 4-2 Problems and Solutions
    72
  - Beep Codes
    78
  - CMOS Battery Replacement
    78
  - Table 4-3 Beep Code Descriptions
    78
Disassembly and Reassembly

80
Appendix A System Specifications

108
Appendix B Connector Pin Assignments

114
Appendix C System Resources

129
- IRQ Settings
  129
- Viewing System Resources
  130
- Setting the Jumper
  130
  - Clearing Your Password
    131
  - Recovering the BIOS
    132

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