BX System Board Technical Reference

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Introduction

This system board is a Pentium® II or Pentium® III system board that uses the Intel 440BX chipset. The system board incorporates such features as:

  • SDRAM DIMM system memory
  • 100 MHz front side bus
  • Ultra ATA 33 drive support
  • Integrated Creative/Ensoniq 1373-based audio
  • Digital speaker support

System board layout

The following illustration shows the system board divided into two sections:

Section 1

    1. J7B1 configuration jumper
    2. PCI expansion slots
    3. ISA expansion slot
    4. Battery
    5. PIIX4e
    6. Audio subsystem (Ensoniq 1373)
    7. AGP expansion slot
    8. Auxiliary In connector

Section 2

    1. Front panel connector
    2. Primary IDE cable connector
    3. Secondary IDE cable connector
    4. DIMM slots
    5. 440 BX chipset
    6. Slot 1 processor connector
    7. Telephony connector
    8. CD In connector
    9. SCSI LED header
    10. Diskette drive connector
    11. PS fan control
    12. Power connector

Configuration jumper settings

J7B1 jumper settings

Setting

Jumper placement

When used

Normal

For normal operation

Configure

For setting the processor speed and clearing passwords

Recover

For recovering the BIOS.


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 Pentium® II or Pentium® III with MMXTM Technology

Cache subsystem

Primary, 32K write back cache, 16K code/16K data

L2 Cache may or may not be integrated into the Pentium II Processor cartridge with 512K of 4-way set associative cache.

RAM capacity

168-pin Sync DRAM (SDRAM) memory. Three slots. Expandable to 768 MB SDRAM.

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 controller is integrated on the system board. Support available for primary and secondary diskette drives and a tape backup unit (TBU).

I/O ports

One parallel and two serial ports 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

AGP expansion slot

One slot (dedicated graphics/video)

ISA expansion slot

One slot (shared with one PCI)

PCI expansion slots

Five (one slot is shared with one ISA slot)

Power supply

200 watts. ATX power connector for easy power cable changeover.

System environment

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

Many products for Gateway and its subsidiaries are custom engineered by our suppliers to Gateway specifications and may vary with similarly marketed products.


Notices

Copyright © 1999 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 Profile, 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 © 1999 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. 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 801-4:1999
[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.