LX System Board Technical Reference

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Introduction

This system board is a Pentium II or Celeron slot I system board that uses the Intel 440LX chipset. The system board incorporates such features as:

  • Integrated ATI Rage Pro AGP video
  • SDRAM DIMM system memory
  • 4MB SGRAM video memory
  • 66 MHz front side bus
  • Ultra ATA 33 drive support
  • ACPI support
  • Integrated creative/Ensoniq 1371-based audio

System Board Layout

Section 1

    1. Battery
    2. Secondary IDE connector
    3. Primary IDE connector
    4. Front panel connector
    5. Configuration jumper block (J8E1)
    6. Diskette drive connector
    7. ATI Media Channel (AMC) connector
    8. Power supply connector
    9. DIMM slots

Section 2

    1. ISA slot
    2. CD-ROM connector (Atapi)
    3. TV line in connector
    4. Telephony connector
    5. Slot 1 processor connector
    6. Fan 2 connector
    7. Fan 1 connector
    8. PCI slots

Back panel connectors

    1. Mouse port
    2. USB port 1
    3. Parallel port
    4. Game port
    5. Keyboard port
    6. USB port 0
    7. Serial port
    8. Video port
    9. Audio line out
    10. Audio line in
    11. Audio mic in

System Board Features

Accelerated Graphics Port (AGP)

The AGP subsystem is dedicated for graphic-intensive applications. AGP is independent of the PCI bus and is intended for use with display adapters. AGP provides these performance features:

  • Pipelined-memory read and write operations that hide memory access latency
  • Demultiplexing of address and data on the bus for near 100 percent bus efficiency
  • AC timing for 133 MHz data transfer rates (AGP), allowing data throughput of 533 MB/sec.

The integrated ATI RagePro Video accelerator is directly connected to the AGP Bus of the computer. No AGP expansion slot is available.

Battery

This external coin-style lithium battery (2032 style) supplies power to the integrated Real Time Clock (RTC) and CMOS memory. The battery has an estimated lifetime of three years and is easily replaced. When the computer is on, power is provided by the power supply to extend the life of the battery.


Warning!

Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions.


DIMM sockets

The Dual Inline Memory Module (DIMM) socket, or bank, is a system board connection that holds one DIMM component. Two banks are available on the system board.

Memory Requirements

Any memory added to the computer must:

  • Be 4-clock PC66- or 100-compliant 168-pin
  • Be single- or double-sided
  • Be a minimum of 8 MB of Synchronous Dynamic Random Access Memory, or SDRAM, expandable up to 512 MB of SDRAM (using 16, 64, or 128Mbit-based DRAM)
  • Be built to an Intel 4clock 66MHz or 100MHz unbuffered SDRAM DIMM specification (runs at 66MHz)
  • Contain a Serial Presence Detect (SPD) EEPROM that is programmed in compliance with Intel's PC SDRAM SPD specification, rev. 1.0 or 1.2A

Diskette drive controller

The diskette drive controller is compatible with the DP8473 and N82077 diskette drive controllers and supports both PC-AT and PS/2 modes. In the BIOS Setup utility, the diskette drive interface can be configured to support one diskette drive for the following capacities and sizes:

  • 360K, 5.25-inch
  • 1.2 MB, 5.25-inch
  • 720K, 3.5-inch
  • 1.2 MB, 3.5-inch (driver required)
  • 1.25/1.44 MB, 3.5-inch
  • 2.88 MB, 3.5-inch

Expansion slots and cards

The system board has the following expansion card slots:

  • One ISA bus expansion slot (shared mechanically with the PCI slot)
  • Three PCI expansion slots (one slot mechanically shared with the ISA slot)

Although there are four expansion slots, there is only enough room on the system board for three expansion cards. A PCI card slot and an ISA card slot are located next to each other, sharing an opening on the back of the computer case. Consequently, only one of these expansion slots can be used.

Fan connector

The power supply fan connector lets the system software control the fan, turning it off or on as needed. The fan connector is continuously supplied with power and is intended to be used for processor heat sinks with fans. The system does not control the power to connectors.

Flash ROM

This component serves as the storage area for the following items:

  • The BIOS
  • The BIOS Setup utility
  • The Power-On Self Test (POST)
  • The Update recovery code
  • The PCI auto-configuration utility

IDE support

This system board has two independent high-performance bus mastering PCI IDE interfaces capable of supporting these devices:

  • PIO Mode 3
  • PIO Mode 4
  • ATAPI
  • Ultra ATA-33

The system supports Logical Block Addressing (LBA) and Extended Cylinder Head Sector (ECHS) translation modes on both interfaces. The system automatically detects the IDE device transfer rate and the translation mode capability.

Intel 82371EB PCI set (PIIX4e)

This component provides the interface between the PCI and ISA buses and the following hardware controls:

  • USB
  • Ultra ATA-33
  • Enhanced DMA
  • Interrupt controller
  • Power management
  • Real-time clock

The PIIX4e also provides power management and RTC logic for the computer. The PIIX4e is a 324-pin BGA package.

Parallel port

The connector for the multimode bidirectional parallel port is a
25-pin D-Sub connector on the back panel. In the BIOS Setup utility, the parallel port can be configured to:

  • Compatible (standard mode)
  • Bidirectional (PS/2 compatible)
  • Extended Parallel Port (EPP)
  • Enhanced Capabilities Port (ECP)

Power connectors

This single-unit connector supplies power to the system board components and cooling fan. It is keyed to fit only one way.

Processor

The system board supports:

  • One Pentium II or Celeron processors
  • Up to 333 MHz processor speeds
  • 66 MHz host bus speed
  • L2 cache up to 512 KB for Pentium II processor and 128 KB for Celeron processor

The Pentium II processor is packaged in a Single Edge Contact (S.E.C.) cartridge. The cartridge includes the processor core, second-level cache, thermal plate, and back cover. The Celeron processor is packaged on a Single Edge Processor Package (SEPP). The SEPP has no cover and the heat sink attaches directly to the processor core.

The processor connects to the system board through the Slot 1 connector and a 330-pin edge connector. When mounted in the Slot 1 connector, the processor is secured by a retention mechanism attached to the motherboard.

Serial ports

The 9-pin D-Sub serial port connector on the back panel is compatible with 16450 and 16550A UARTs.

Super Input/Output (I/O) controller

This controller is ISA Plug and Play compatible, providing control for the integrated serial ports, parallel port, diskette drive, and keyboard or mouse. The controller provides:

  • One 16450/16550A, software-compatible UARTs with internal send/receive 16-byte FIFO buffer
  • Multimode bidirectional parallel port in standard, enhanced, and high-speed extended capabilities modes
  • Industry standard diskette controller with 16-byte data FIFO, PC-AT and PS/2 drive mode support, and high-performance Digital Data Separator (DDS) for one diskette drive
  • Keyboard controller
  • Mouse controller

By default, the I/O controller interfaces are automatically configured during startup. The I/O controller can also be manually configured in the BIOS Setup utility.

Audio Subsystem

The following features are available on the audio subsystem:

  • Analog audio
  • PCI 64 voice wavetable synthesizer
  • Mixer application
  • 3-D positional audio
  • Direct Sound 5.0
  • Real-mode DOS compatibility

Video Subsystem

The following features are available on the video subsystem:

  • ATI Rage Pro Turbo AGP 64-bit acceleration
  • 4 MB high-speed SGRAM
  • Integrated 32-bit AGP bus
  • Up to 1600 × 1200 resolution, up to 85 Hz refresh, up to 64K colors (depending upon monitor)
  • Standard VGA 640 × 480 analog monitor or better

Preventing Static Electricity

Static electricity precautions

Before opening the computer case, read and follow these precautions to prevent damage from static electricity.


Caution!
Preventing Static Electricity Damage

Static electricity can permanently damage electronic components in the computer. Prevent electrostatic damage to the system by following static electricity precautions every time you open the computer case.


  1. Turn off the computer power.
  2. Touch a bare metal surface on the back of the computer.
  3. Unplug all cords from the wall outlet.

Please also follow these static electricity precautions:

  • Avoid static-causing surfaces such as plastic and styrofoam in your work area.
  • Remove parts from their antistatic bags only when you are ready to use them. Do not lay parts on the outside of antistatic bags because only the inside provides antistatic protection.
  • Always hold cards by their edges and their metal mounting bracket. Avoid touching components on the cards and the edge connectors that connect to expansion slots. Never slide cards or other parts over any surface.

Replacing a Celeron Processor

    1. Heat sink and processor
    2. Processor connector (slot 1)
    3. Processor retention mechanisms

To replace a Celeron processor on the system board:

  1. Shut down the computer.
  2. Remove the computer cover.

    Refer to the documentation that came with your computer for information about opening your case.

  1. Refer to the illustration of the system board to find the location of the Slot 1 processor connector.
  2. Remove the screws that hold the retention mechanisms to the motherboard.
  3. Remove the existing processor from the Slot 1 processor connector on the motherboard.
  4. Secure the retention mechanisms to the motherboard with the screws.
  5. Position the processor with the heat sink facing the DIMM (memory) slots on the system board.
  6. Slide the processor straight into the processor retention mechanisms.

    Push evenly on both edges until the processor is firmly seated in the Slot 1 processor connector.

  1. Set the J8E1 jumper from the Normal 1-2 pin position to the Config 2-3 pin position.

  1. Replace the cover.
  2. Restart the computer.

    Because you set the jumper to the 2-3 pin setting, a special Maintenance menu appears on the screen.

BIOS Setup Utility

  Maintenance   Main     Advanced     Security     Power     Boot   Exit



Item Specific Help

Processor Speed:
Clear Passwords:














 

333 MHz
[Enter]














 
 
Sets the Processor
Speed.

WARNING: SETTING THE
PROCESSOR SPEED
GREATER THAN ITS RATED
VALUE CAN CAUSE DAMAGE
TO THE PROCESSOR.

    F1 Help       ­¯ Select Item            -/+ Change Values                 F9 Setup Default
    ESC Exits     ¬® Select Menu       Enter Select > Sub-Menu     F10 Save and Exit



  1. Select the correct processor speed in the Processor Speed field.

Caution!

Setting the processor to a speed greater than its rated value can cause damage to the processor.


  1. Exit the BIOS Setup utility, saving your settings.
  2. Shut down the computer.
  3. Remove the cover.
  4. Set the J8E1 jumper to the 1-2 pin position.

  1. Replace the cover.
  2. Restart the computer.

Clearing Passwords

To clear passwords:

  1. Shut down the computer.
  2. Remove the computer cover.

    Refer to the documentation that came with your system for information about opening your case.

  1. Set the J8E1 jumper from the normal 1-2 pin position to the
    2-3 pin position.

  1. Replace the cover.
  2. Restart your computer.

    Because you set the jumper to the 2-3 pin setting, a special Maintenance menu appears on the screen.

BIOS Setup Utility

  Maintenance   Main     Advanced     Security     Power     Boot   Exit



Item Specific Help

Processor Speed:
Clear Passwords:














 

333 MHz
[Enter]














 
 
Sets the Processor
Speed.

WARNING: SETTING THE
PROCESSOR SPEED
GREATER THAN ITS RATED
VALUE CAN CAUSE DAMAGE
TO THE PROCESSOR.

    F1 Help       ­¯ Select Item            -/+ Change Values                 F9 Setup Default
    ESC Exits     ¬® Select Menu       Enter Select > Sub-Menu     F10 Save and Exit



  1. Clear the passwords by selecting the Enter option in the Clear Passwords field.

    The system asks you if you want to clear your password. Select Yes.

  1. Make sure that the processor speed is correct.
  2. Exit the BIOS Setup utility, saving your settings.
  3. Shut down the computer.
  4. Remove the cover.
  5. Set the J8E1 jumper to the 1-2 pin position.

  1. Replace the cover.
  2. Restart the computer.

    All passwords are removed.


The BIOS Setup Utility

The BIOS Setup utility is used to determine the performance settings for your computer.


Caution!

The options in the BIOS Setup utility have been set for optimal performance. Changes to these settings will affect the performance of the computer.


Silent boot

This computer has the silent boot option. When the computer is turned on, the computer screen does not display startup information or system messages unless you press the Tab key.

If you need to disable the silent boot option, you can do so in the BIOS Setup utility under Boot Options in the Main menu.

Opening the BIOS Setup utility

To open the BIOS Setup utility:

  1. Restart the computer
  2. When the computer displays the message, To change system settings press the <F1> key, press F1.

    The BIOS Setup utility opens the Main menu screen.

The Main Menu screen

The following illustration shows the main menu screen of the BIOS Setup Utility.

BIOS Setup Utility

   Main     Advanced     Security     Power     Boot   Exit



Item Specific Help

BIOS Version

Processor Type
Processor Speed
Cache Ram

System Memory
Memory Bank 0
Memory Bank 1

Language:

System Time:
System Date:

 

404CL0X0.15A.0002.B

Intel Celeron(tm)
333 MHz
128 KB

128 MB
Not Installed
128 MB SDRAM

[English (US)]

[11:09:31]
[7/27/1998]

Enables or Disables
ECC support for the
Processor's L2 Cache
 

    F1 Help       ­¯ Select Item            -/+ Change Values                 F9 Setup Default
    ESC Exits     ¬® Select Menu       Enter Select > Sub-Menu     F10 Save and Exit



Menu Bar

This area is at the top of the Main menu screen in the BIOS Setup utility. Tab through the following menu selections to make changes to the BIOS Setup utility settings:

  • Main gives you access to basic information and settings related to your system hardware and configuration.
  • Advanced gives you access to detailed information and configures the settings for system resources and hardware.
  • Security gives you access to settings related to system access passwords.
  • Power gives you access to information and settings related to power saving functions available with your system.
  • Boot gives you access to settings that determine how your computer starts up.
  • Exit gives you access to options for exiting the BIOS Setup utility.

Item Specific Help Box

This box is to the right of the BIOS Setup utility screen. When you select an item on the Main menu and in the submenus, information related to this selection appears in this area of the screen.

Command keys

The command keys are located at the right of the BIOS Setup utility screen.

Use the following keys to navigate through the BIOS Setup utility screen.

  • F1 opens the Help screen, providing general help for using the BIOS Setup utility.
  • (_) Up and (_) Down move you among the fields in the menu.
  • (_) Left and (_) Right move you among the six major menus.
  • Enter activates a selected field or, when a selected item is preceded by the greater-than symbol (>), moves you to a submenu screen.
  • (+) Plus and (-) Minus change values in fields or move an item up or down in a list.
  • Esc returns you to the previous screen. In the main menu this key lets you exit the BIOS Setup utility.
  • F9 opens a screen that lets you return all values to their default settings.
  • F10 opens a screen that lets you save all settings and then exit the BIOS Setup utility.

Exiting the BIOS Setup utility

If you make changes to the BIOS Setup utility settings, make sure that you save your settings before you exit the BIOS Setup utility. These settings are stored and saved even when the power is off.

To save new settings and exit the BIOS Setup utility:

  1. Press the (_) right arrow key to highlight the Exit menu selection.
  2. Select Exit Saving Changes.

    The Setup Confirmation window appears. The system asks you if you want to save configuration changes.

  1. Select Yes to save your settings and exit the BIOS Setup utility.

To exit the BIOS Setup utility without saving changes:

  1. Press the (_) right arrow key to highlight the Exit menu selection.
  2. Select Exit Discarding Changes.

    The Setup Confirmation window appears. The system asks you if you want to discard configuration changes before exiting.

  1. Select Yes to exit the BIOS Setup utility without saving changes.

Specifications

The following specifications are for the standard configuration; your system may contain optional equipment. All specifications are subject to change without notice or obligation.

CPU

Intel Celeron or Pentium II

Cache subsystem

512K L2 Cache integrated into the Pentium II or processor cartridge.
128K L2 Cache integrated into the Celeron processor.

RAM capacity

The 168-pin Sync Intel 4clock 100 MHz DRAM (SDRAM) memory. Two slots. Expandable up to 512 MB SDRAM (using 128Mbit-based registered stacked DRAM)

BIOS

Phoenix BIOS. Flash BIOS for easy updates from diskette.

IDE interfaces

Supports up to four IDE devices (hard drives,
CD-ROMs, or LS-120s) using two on-board PCI IDE connectors. Automatic drive type selection for easy setup.

Diskette drive

A diskette drive controller is integrated on the system board. Support is available for a single diskette drive.

I/O ports

One parallel and one serial port on system board. LPT and COM configurable from system setup program. No jumper settings required.

USB

Universal Serial Bus (2 ports)

Mouse

PS/2 mouse connector

Keyboard

PS/2 keyboard connector

ISA expansion slot

One slot (mechanically shared with PCI slot)

PCI expansion slots

Three (one mechanically shared with ISA slot)

System environment

Internal temperature: 10°C to 35°C
Humidity: 20% to 80%
Altitude: -200 ft. to 10,000 ft. (-60 m to 3048 m)
Shock, vibration; 12g 11ms half-sine;
2 to 200Hz, 0.25g sinusoidal
CPU clearance: >0.4 inch (10 mm) after installation, top and sides

Certification

FCC Class B, ETL, CUL, CE Mark, VCCI, CB Scheme

   

Audio Subsystem

 

Frequency Response

20Hz to 20kHz (Line-out)

Signal to Noise Ratio

>90dB (Line-out)

 

>70dB (Line-out)

THD+N (Typical)

0.0005% (source: Line-in) @ 1Vrms, 1kHz

   

Video Subsystem

 

Accelerator

ATI Rage Pro Turbo AGP
64-bit acceleration

Memory

8 MB high-speed SGRAM

Bus

Integrated 32-bit AGP bus

Resolution

1600 x 1200, up to 85 Hz refresh, up to 64K colors (depending upon monitor),
1280 x 1024, up to 100 Hz refresh, up to 64K colors (depending upon monitor),
1152 x 864, up to 120 Hz refresh, up to 64K colors (depending upon monitor),
1024 x 768, up to 150 Hz refresh, up to 64K colors (depending upon monitor),
800 x 600, up to 200 Hz refresh, up to 64K colors (depending upon monitor),
640 x 480, up to 200 Hz refresh, up to 64K colors (depending upon monitor),

Connector

Standard 15-pin video

Software support

DOS, Windows

Drivers

Windows 95, Windows 98, Windows NT

Monitor support

Standard VGA 640 x 480 analog monitor or better

Power

Approximately 2.86 W maximum


Notices

Copyright © 1998 Gateway 2000, Inc. All Rights Reserved
610 Gateway Drive, N. Sioux City, SD 57049 USA

All Rights Reserved

This publication is protected by copyright and all rights are reserved. No part of it may be reproduced or transmitted by any means or in any form, without prior consent in writing from Gateway 2000.

The information in this manual has been carefully checked and is believed to be accurate. However, changes are made periodically. These changes are incorporated in newer publication editions. Gateway 2000 may improve and/or change products described in this publication at any time. Due to continuing system improvements, Gateway 2000 is not responsible for inaccurate information which may appear in this manual. For the latest product updates, consult the Gateway 2000 web site at www.gateway.com. In no event will Gateway 2000 be liable for direct, indirect, special, exemplary, incidental, or consequential damages resulting from any defect or omission in this manual, even if advised of the possibility of such damages.
In the interest of continued product development, Gateway 2000 reserves the right to make improvements in this manual and the products it describes at any time, without notices or obligation.

Trademark Acknowledgments

AnyKey, black-and-white spot design, CrystalScan, Destination, EZ Pad, EZ Point, Field Mouse, Solo, TelePath, Vivitron, stylized "G" design, and "You've got a friend in the business" slogan are registered trademarks and GATEWAY, Gateway Solo, green stylized GATEWAY, green stylized Gateway logo, and the black-and-white spotted box logo are trademarks of Gateway 2000, Inc. Intel, Intel Inside logo, and Pentium are registered trademarks and MMX is a trademark of Intel Corporation. Microsoft, MS, MS-DOS, and Windows are trademarks or registered trademarks of Microsoft Corporation. All other product names mentioned herein are used for identification purposes only, and may be the trademarks or registered trademarks of their respective companies.

Copyright © 1998 Advanced Logic Research, Inc. (ALR)
All Rights Reserved
9401 Jeronimo Irvine, CA 92618 USA

All Rights Reserved

This publication is protected by copyright and all rights are reserved. No part of it may be reproduced or transmitted by any means or in any form, without prior consent in writing from ALR.

The information in this manual has been carefully checked and is believed to be accurate. However, changes are made periodically. These changes are incorporated in newer publication editions. ALR may improve and/or change products described in this publication at any time. Due to continuing system improvements, ALR is not responsible for inaccurate information which may appear in this manual. For the latest product updates, consult the ALR web site at www.alr.com. In no event will ALR be liable for direct, indirect, special, exemplary, incidental, or consequential damages resulting from any defect or omission in this manual, even if advised of the possibility of such damages.
In the interest of continued product development, ALR reserves the right to make improvements in this manual and the products it describes at any time, without notices or obligation.

Trademark Acknowledgments

ALR is a registered trademark of Advanced Logic Research, Inc. All other product names mentioned herein are used for identification purposes only, and may be the trademarks or registered trademarks of their respective companies.


Regulatory Compliance Statements


American Users:

This device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio or television reception. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio and television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

    · Reorient or relocate the receiving antenna
    · Increase the separation between the equipment and receiver
    · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
    · Consult the dealer or an experienced radio/TV technician for help.


Caution!

The Federal Communications Commission warns the users that changes or modifications to the unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.


Accessories: This equipment has been tested and found to comply with the limits of a Class B digital device. The accessories associated with this equipment are as follows:

    · Shielded video cable
    · Shielded power cord

These accessories are required to be used in order to ensure compliance with FCC rules.


Canadian Users:

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of Industry Canada.

Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de Classe B prescrites dans le règlement sur le brouillage radioélectrique édicté par Industrie Canada.


European Users:

This Information Technology Equipment has been tested and found to comply with the following European directives:

[i] EMC Directive 89/336/EEC amending directive 92/31/EEC & 93/68 EEC as per
- EN 50081-1:1992 according to
EN 55022:1995 Class B
EN 61000-3-2:1995 or EN 60555-2:1986
EN 61000-3-3: 1995

- EN50082-1:1992 according to
EN 61000-4-2:1995 or IEC 801-2:1984
ENV 50140:1994 or IEC 801-3:1984
EN 61000-4-4:1988 or IEC 801-4:1998

[ii] Low Voltage Directive (Safety) 73/23/EEC as per EN 60950: 1992


Japanese Users:

This equipment is in the Class 2 category (Information Technology Equipment to be used in a residential area or an adjacent area thereto) and conforms to the standards set by the Voluntary Control Council for Interference by Information Technology Equipment aimed at preventing radio interference in such residential area.

When used near a radio or TV receiver, it may become the cause of radio interference. Read instructions for correct handling.


Australian and New Zealand Users:

This device has been tested and found to comply with the limits for a Class B digital device, pursuant to the Australian/New Zealand standard AS/NZS 3548 set out by the Spectrum Management Agency.


Caution!

Disconnect power before servicing.



Attention!

Couper le courant avant l'entretien.