BI440ZX Motherboard Specification Update
BI440ZX
Motherboard
Specification Update
Release Date: March 2000
Order Number: 730368-011
The BI440ZX motherboard may contain design defects or errors known as errata which may
cause the product to deviate from published specifications. Current characterized errata are
documented in this Specification Update.
Information in this document is provided in connection with Intel® products. No license, express or implied, by estoppel or
otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel’s Terms and Conditions of
Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to
sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or
infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life
saving, or life sustaining applications.
Intel retains the right to make changes to specifications and product descriptions at any time, without notice.
The BI440ZX motherboard may contain design defects or errors known as errata which may cause the product to deviate from
published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your product order.
* Third party brands and names are the property of their respective owners.
Copies of documents which have an ordering number and are referenced in this document, or other Intel literature, may be
obtained from:
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Germany 44-0-1793-421-333, other Countries 708-296-9333
Copyright  2000, Intel Corporation. All rights reserved.
CONTENTS
REVISION HISTORY....................................................................................................................................v
PREFACE ...................................................................................................................................................vi
Specification Update for BI440ZX Motherboards
GENERAL INFORMATION.......................................................................................................................... 3
SPECIFICATION CHANGES....................................................................................................................... 8
ERRATA...................................................................................................................................................... 9
SPECIFICATION CLARIFICATIONS..........................................................................................................11
DOCUMENTATION CHANGES..................................................................................................................12
BI440ZX SPECIFICATION UPDATE
REVISION HISTORY
Date of Revision
December 1998
Version
-001
Description
This document is the first Specification Update for the Intel
BI440ZX motherboard.
January 1999
-002
Added Erratum 1.
February 1999
-003
Added Specification Change 1.
April 1999
-004
Added Errata 2-3.
May 1999
-005
Added Erratum 4.
June 1999
-006
Added Erratum 5.
July 1999
-007
Modified Specification Change 1.
August 1999
-008
Added Documentation Change 1.
September 1999
-009
Added Specification Change 2.
December 1999
-010
Added Specification Clarification 1.
March 2000
-011
Added Erratum 6.
v
BI440ZX SPECIFICATION UPDATE
PREFACE
This document is an update to the specifications contained in the BI440ZX Motherboard Technical Product
Specification (Order number 726089). It is intended for hardware system manufacturers and software
developers of applications, operating systems, or tools. It will contain Specification Changes, Errata,
Specification Clarifications, and Documentation Changes.
Refer to the Intel Celeron™ Processor Specification Update (Order number 243748) for specification
updates concerning the Celeron processor. Items contained in the Intel Celeron Processor Specification
Update that either do not apply to the BI440ZX motherboard or have been worked around are noted in this
document. Otherwise, it should be assumed that any processor errata for a given stepping are applicable to
the PBA revision(s) associated with that stepping.
Refer to the 82443ZX Specification Update (Order Number TBD) for specification updates concerning the
82443ZX PCI A.G.P. Controller. Items contained in the 82443ZX Specification Update that either do not
apply to the BI440ZX motherboard or have been worked around are noted in this document. Otherwise, it
should be assumed that any controller errata for a given stepping are applicable to the PBA revision(s)
associated with that stepping.
Refer to the Intel 82371EB (PIIX4E) Specification Update (Order Number 290635) for specification updates
concerning the 82371EB PIIX4E. Items contained in the Intel 82371EB (PIIX4E) Specification Update that
either do not apply to the BI440ZX motherboard or have been worked around are noted in this document.
Otherwise, it should be assumed that any PIIX4E errata for a given stepping are applicable to the Printed
Board Assembly (PBA) revision(s) associated with that stepping.
Nomenclature
Specification Changes are modifications to the current published specifications. These changes will be
incorporated in the next release of the specifications.
Errata are design defects or errors. Characterized errata may cause the BI440ZX motherboard’s behavior to
deviate from published specifications. Hardware and software designed to be used with any given Printed
Board Assembly (PBA) and BIOS revision level must assume that all errata documented for that PBA and
BIOS revision level are present on all motherboards.
Specification Clarifications describe a specification in greater detail or further highlight a specification’s
impact to a complex design situation. These clarifications will be incorporated in the next release of the
specifications.
Documentation Changes include typos, errors, or omissions from the current published specifications.
These changes will be incorporated in the next release of the specifications.
vi
Specification Update for
BI440ZX Motherboards
BI440ZX SPECIFICATION UPDATE
GENERAL INFORMATION
Basic BI440ZX Motherboard Identification Information
AA Revision
PBA Revision
440ZX AGPSet
Stepping
BIOS Revision
Notes
729695-202
721262-202
A1
4B4IZ0XA,86A.
0003.P01
1-5
729695-203
721262-203
A1
4B4IZ0XA,86A.
0006.P03
1-5
729695-204
721262-204
A1
4B4IZ0XA,86A.
0007.P04
1-5
729695-205
721262-205
A1
4B4IZ0XA,86A.
0008.P05
1-5
729695-206
721262-206
A1
4B4IZ0XA,86A.
0010.P07
1-5
729695-207
721262-207
A1
4B4IZ0XA,86A.
0010.P07
1-5
729695-208
721262-208
A1
4B4IZ0XA,86A.
0010.P07
1-5
725665-202
721262-202
A1
4B4IZ0XA,86A.
0003.P01
1-5
725665-203
721262-203
A1
4B4IZ0XA,86A.
0006.P03
1-5
725665-204
721262-204
A1
4B4IZ0XA,86A.
0007.P04
1-5
725665-205
721262-205
A1
4B4IZ0XA,86A.
0008.P05
1-5
725665-206
721262-206
A1
4B4IZ0XA,86A.
0010.P07
1-5
725665-207
721262-207
A1
4B4IZ0XA,86A.
0010.P07
1-5
725665-208
721262-208
A1
4B4IZ0XA,86A.
0010.P07
1-5
NOTES:
1. The PBA number or AA number is found on a small label on the component side of the board.
2. The 440ZX AGPset kit used on this PBA revision consists of two components as follows:
Device
Stepping
S-Spec Numbers
82443ZX
A1
SL37A
82371EB
A0
SL37M
SL37Z
3
BI440ZX SPECIFICATION UPDATE
3.
4.
5.
4
The following errata are contained in the Intel Celeron™ Processor Specification Update (Order Number 243748) for the
Celeron processor and either do not apply to the BI440ZX motherboard or have been worked-around in this PBA and/or
BIOS revision: C1AP-C2AP. All other errata associated with the processor apply to this PBA revision.
The following items are contained in the Intel 82443ZX Specification Update (Order Number TBD) and either do not apply
to the BI440ZX motherboard or have been worked around in this PBA and/or BIOS revision: None. All other errata
associated with the AGPset apply to this PBA revision.
The following items are contained in the Intel 82371EB (PIIX4E) Specification Update (Order Number 290635) and either
do not apply to the BI440ZX motherboard or have been worked around in this PBA and/or BIOS revision: 5, 9, 15. All
other errata associated with the PIIX4E apply to this PBA revision.
BI440ZX SPECIFICATION UPDATE
Summary Table of Changes
The following table indicates the Specification Changes, Errata, Specification Clarifications, or Documentation
Changes which apply to the BI440ZX motherboard. Intel intends to fix some of the errata in a future revision
of the motherboard, and to account for the other outstanding issues through documentation or specification
changes as noted. This table uses the following notations:
CODES USED IN SUMMARY TABLE
Doc:
Document change or update that will be implemented.
Fix:
This erratum is intended to be fixed in a future revision of the motherboard or
BIOS.
Fixed:
This erratum has been previously fixed.
NoFix:
There are no plans to fix this erratum.
Shaded:
This erratum is either new or modified from the previous version of the document.
NO.
PLANS
SPECIFICATION CHANGES
Intel®
1
Doc
Support for new
2
Doc
Support for 500 MHz Intel Celeron processors
NO.
PLANS
Celeron™ processor speeds
ERRATA
1
NoFix
2
Fixed
System BIOS does not load latest processor microcode at boot time
3
NoFix
BIOS setup program does not warn of IRQ conflict
4
Fixed
System will not boot without video card installed
5
Fixed
System does not suspend correctly under OS/2* Warp* 4.0
6
Fixed
System may not function with add-in SCSI host bus adapter
NO.
1
NO.
1
PLANS
Doc
PLANS
Doc
System Cannot Boot From Intelligent I/O Device
SPECIFICATION CLARIFICATIONS
FDISK terminates if there is no disk in ZIP drive.
DOCUMENTATION CHANGES
Change to description of wake-up devices
5
BI440ZX SPECIFICATION UPDATE
The errata described in this specification update apply to combinations of PBA revision and BIOS revision as
shown in the table below. Descriptions of the individual errata referred to by number in the table below are
found in the ERRATA section of this document.
PBA Revision
BIOS Revision
721262-202
4B4IZ0XA.86A.0003.P01
1-6
4B4IZ0XA.86A.0004.P02
1, 3-6
4B4IZ0XA,86A.0006.P03
1, 3-6
4B4IZ0XA,86A.0007.P04
1, 3, 5-6
4B4IZ0XA,86A.0008.P05
1, 3, 5
4B4IZ0XA,86A.0010.P07
1, 3
4B4IZ0XA.86A.0003.P01‡
1-6
721262-203
‡
1, 3-6
4B4IZ0XA,86A.0006.P03
1, 3-6
4B4IZ0XA,86A.0007.P04
1, 3, 5-6
4B4IZ0XA,86A.0008.P05
1, 3, 5
4B4IZ0XA,86A.0010.P07
1, 3
4B4IZ0XA.86A.0003.P01‡
1-6
4B4IZ0XA.86A.0004.P02
721262-204
‡
1, 3-6
4B4IZ0XA,86A.0006.P03‡
1, 3-6
4B4IZ0XA,86A.0007.P04
1, 3, 5-6
4B4IZ0XA,86A.0008.P05
1, 3, 5
4B4IZ0XA,86A.0010.P07
1, 3
4B4IZ0XA.86A.0004.P02
721262-205
4B4IZ0XA.86A.0003.P01
1-6
1, 3-6
‡
1, 3-6
4B4IZ0XA,86A.0007.P04‡
1, 3, 5-6
4B4IZ0XA,86A.0008.P05
1, 3, 5
4B4IZ0XA,86A.0010.P07
1, 3
4B4IZ0XA.86A.0003.P01
‡
1-6
4B4IZ0XA.86A.0004.P02‡
1, 3-6
4B4IZ0XA,86A.0006.P03‡
1, 3-6
4B4IZ0XA,86A.0007.P04
6
‡
4B4IZ0XA.86A.0004.P02‡
4B4IZ0XA,86A.0006.P03
721262-206
Errata That Apply
‡
1, 3, 5-6
4B4IZ0XA,86A.0008.P05‡
1, 3, 5
4B4IZ0XA,86A.0010.P07
1, 3
BI440ZX SPECIFICATION UPDATE
PBA Revision
721262-207
BIOS Revision
4B4IZ0XA.86A.0003.P01
1, 3-6
4B4IZ0XA,86A.0006.P03‡
1, 3-6
1, 3, 5-6
1, 3, 5
4B4IZ0XA,86A.0010.P07
1, 3
4B4IZ0XA.86A.0003.P01‡
1-6
‡
1, 3-6
4B4IZ0XA,86A.0006.P03‡
1, 3-6
4B4IZ0XA,86A.0007.P04
Note:
‡
4B4IZ0XA,86A.0008.P05‡
4B4IZ0XA.86A.0004.P02
‡
1-6
4B4IZ0XA.86A.0004.P02‡
4B4IZ0XA,86A.0007.P04
721262-208
Errata That Apply
‡
‡
1, 3, 5-6
4B4IZ0XA,86A.0008.P05‡
1, 3, 5
4B4IZ0XA,86A.0010.P07
1, 3
This combination of BIOS revision and PBA revision has not undergone regression testing. Use of
a PBA with down-revision BIOS is an untested combination and is undertaken at the user’s risk.
7
BI440ZX SPECIFICATION UPDATE
SPECIFICATION CHANGES
The Specification Changes listed in this section apply to the BI440ZX Motherboard Technical Product
Specification (Order Number 726089). All Specification Changes will be incorporated into a future version of
that specification.
1.
Support for New Intel® Celeron™ Processor Speeds
The following will be added to Table 1, Processor Speeds Supported by the Motherboard, in Section 1.2,
Processor:
Processor Speed
Host Bus Frequency
Cache Size
366 MHz
400 MHz
433 MHz
466 MHz
66 MHz
66 MHz
66 MHz
66 MHz
128 KB
128 KB
128 KB
128 KB
Note: BIOS Revision 4B4IZ0XA.86A.0007.P04 or greater is required to properly support 433 MHz and
466 MHz processors.
2.
Support for 500 MHz Intel Celeron Processors
The following will be added to Table 1, Processor Speeds Supported by the Motherboard, in Section 1.2,
Processor:
Processor Speed
Host Bus Frequency
Cache Size
500 MHz
66 MHz
128 KB
Note: BIOS Revision 4B4IZ0XA.86A.0010.P07 or greater is required to properly support 500 MHz
processors.
8
BI440ZX SPECIFICATION UPDATE
ERRATA
1.
System Cannot Boot From Intelligent I/O Device
PROBLEM: Although the BIOS Setup program lists the option to select a device that complies with the
Intelligent I/O specification as a boot device, the system will not boot from the device. The option to select an
Intelligent I/O device as a boot device has been removed from BIOS revisions 4B4IZ0XA.86A.0004.P02 and
later.
IMPLICATION: The user will have to specify another boot device.
WORKAROUND: None.
STATUS: This erratum will not be fixed.
2.
System BIOS Does Not Load Latest Processor Microcode at Boot
Time
PROBLEM: Even if a later processor microcode update has been loaded into non-volatile RAM by an update
utility, the BIOS loads the superseded original microcode from within the BIOS flash module.
IMPLICATION: The system will be subject to processor errata that have been worked around in the new
update.
WORKAROUND: None.
STATUS: This erratum was fixed in BIOS revision 4B4IZ0XA.86A.0004.P02.
3.
BIOS Setup Program Does Not Warn of IRQ Conflict
PROBLEM: The BIOS Setup program does not display an asterisk in the Peripheral Configuration submenu
to warn that the IRQ chosen for the serial port is in use by another device.
IMPLICATION: The user may assign two devices to use the same IRQ resource.
WORKAROUND: None.
STATUS: This erratum will not be fixed.
4.
System Will Not Boot Without Video Card Installed
PROBLEM: The system will fail during the boot process if no video card is detected during system boot.
IMPLICATION: Embedded applications that do not use a video card will not run correctly.
WORKAROUND: None.
STATUS: This erratum was fixed in BIOS revision 4B4IZ0XA.86A.007.P04.
9
BI440ZX SPECIFICATION UPDATE
5.
System Does Not Suspend Correctly Under OS/2* Warp* 4.0
Problem: Under the OS/2* Warp* 4.0 operating system, the system will not suspend from the start menu.
When the user attempts to put the system into the suspend state, it suspends for about one second, then
wakes up.
IMPLICATION: The user will not be able to force the system to suspend.
WORKAROUND: None.
STATUS: This erratum was fixed in BIOS revision 4B4IZ0XA.86A.0010.P07.
6.
System May Not Function With Add-in SCSI Host Bus Adapter
Problem: The BIOS may fail to initialize an add-in SCSI host bus adapter correctly.
Implication: Devices connected to the host bus adapter will not be available to the operating system.
Workaround: None
Status: This erratum was fixed in BIOS revision 4S4R100A.86A.0011.P05.
10
BI440ZX SPECIFICATION UPDATE
SPECIFICATION CLARIFICATIONS
The Specification Clarifications listed in this section apply to the BI440ZX Motherboard Technical Product
Specification (Order Number 726089). All Specification Changes will be incorporated into a future version of
that specification
1.
FDISK Terminates if There is No Disk in ZIP* Drive
When using a ZIP* DRIVE as an ATAPI device, there must be a disk in the drive for FDISK to function
properly.
11
BI440ZX SPECIFICATION UPDATE
DOCUMENTATION CHANGES
The Documentation Changes listed in this section apply to the BI440ZX Motherboard Technical Product
Specification (Order Number 726089). All Documentation Changes will be incorporated into a future version
of that specification.
1.
Change to Description of Wake-Up Devices
In Section 3.5.2.2, Wake-up Devices and Events, the text paragraph should read “Table 50 describes which
devices or specific events can wake the computer from specific ACPI states.”
12
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