1. b4046.exe Driver
2. README.TXT File Contents

README.TXT Driver File Contents (b4046.exe)

Gateway 2000 P4D SYSTEMS BIOS UPGRADE InSTALLATION GUIDE
Part # SWRMAN025AAUS (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, Gateway 2000
assumes no responsibility for any inaccuracies that may be contained in this
manual. In no event will Gateway 2000 be liable for direct, indirect, special,
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 notice or obligation.

Trademark Acknowledgments
--------------------------
Gateway 2000, AnyKey, stylized G, cow spot motif, and motto "You've got a
friend in the business" are registered trademarks of Gateway 2000. UNIX is a
trademark of AT&T. IBM, PC/AT, OS/2, Chicago, and PS/2 are registered trade-
marks of International Business Machines Corporation. Pentium, Overdrive and
Intel are registered trademarks of Intel Corporation. Microsoft, MS, MS-DOS,
Windows, Windows NT, and Windows 95 are registered trademarks of Microsoft
Corporation. PageMaker is a registered trademark of Aldus Corporation. Xenix
is a registered trademark of Santa Cruz Operation (SCO). Palatino, Times, and
Helvetica are trademarks of Linotype AG and/or its subsidiaries. PostScript is
a trademark of Adobe Systems Inc. Diagsoft, Diagsoft QA Plus, and Diagsoft QA
Plus FE are all registered trademarks of Diagsoft Inc. Adaptec is a registered
trademark of Adaptec Corporation. Phlash is a registered trademark of Phoenix
Technologies, Ltd. All other product names mentioned herein are used for
identification purposes only, and may be the trademarks or registered
trademarks of their respective companies.

Table of Contents
-----------------
About P4D BIOS upgrades and improvements
Flashing the P4D BIOS (CMOS) upgrade
Changes to the P4D BIOS
The CMOS Setup program
Main screen
Advanced screen
Security screen
Power screen
Exit screen
CPU upgrade information

About P4D BIOS upgrades and improvements
----------------------------------------
The diskette you received contains a new version of the BIOS for your P4D
computer system. The purpose of this installation guide is to help you up-
grade your BIOS and provide you with upgrade information about your processor,
should you choose to install a different CPU. There have been some changes to
the BIOS that are documented on the next few pages. Be sure to take note of
these changes so you can set up your system properly.

An overview of the changes in the BIOS are as follows:
1. The version number has been changed from either 4.03 .06, 4.03.08, or
   4.03.09 to 4.04.06, and the Setup format, features, and text are slightly
   modified.                                                             
2. The Intel Plug and Play Configuration Manager has been updated to version
   1.21. Also, Chicago Plug and Play run-time services have been
   added (version 1.0A).
3. Pentium OverDrive upgrade support has been added.
4. >64MB DRAM support for Windows NT 3.5 and Chicago (Windows 95) has been   
   added.
5. The password clear jumper functions properly.
6. Power Management has been altered to wake up the entire system (Wake-Up
   Event) upon a designated IRQ occurrence, as opposed to a partial system
   wake up (Break Event).
7. The Advanced Power Management (APM) 1.0 has been modified to correct a
   system hang problem when APM-aware software attempts to power down UART
   ports.
  
The CMOS Setup program
----------------------
The computer's BIOS has a built-in Setup program that allows you to set several
basic system characteristics. The settings are stored in battery-backed RAM
that retains the information when the power is off. To enter the Setup program,
press F2 when the prompt to do so appears at the bottom of the screen during
boot. The Setup screen appears. The Setup program has five screens of in-
formation with parameters you can change, identified by menu titles across
the top of the screen.

Using the Setup program
-----------------------
To move from one screen to another, use the Right or Left Arrow key. To move
the highlight from one item to another within a screen, press the Up or Down
arrow key, or the Tab key. Press the Plus or Minus key to toggle choices
within an item. The spacebar also toggles choices.

Main screen
-----------
System time and date - The hour is displayed as a 24-hour clock. For example,
1:00 PM is 13:00:00.  Use the Plus or Minus keys to change the numbers in the
fields. Use the Tab key to move from field to field.

Diskettes A and B - These options select the type of diskette drive(s)
installed in the system.  Choosing "Not Installed" disables the floppy drive.

Hard disk setup - Your system can support two IDE hard drives on the supplied
PCI-IDE adapter card, and two more with a secondary ISA IDE card. Highlight the
first available drive type item and press Enter. The drive detail screen
appears. If you installed an IDE drive, press Enter to choose automatic
selection of the drive type. If the system fills in the fields, it has auto
configured a drive type for you. If you installed a SCSI hard disk, select
"Not Installed" for the drive type for that hard disk.

Defining drives - If the system cannot determine the drive type with the Auto
setting, highlight the "Type" field and press the Plus key until a set of
parameters appears that matches the parameters listed on the drive's case or
in the drive's manual. If the drive is not in the list of drives in the Setup
program, you can define your own drive type—choose the "User" setting, press
Enter, and fill in the fields on the screen. In general, the "Multi-Sector
Transfers" item defaults to 16 sectors. If you set a specific number of
sectors, set the largest number your drive supports. If the drive is 528MB or
larger, set "LBAMode Control" to Enabled. Otherwise set it to Disabled.

To return to the main screen, press Esc.

Video System - "Display" is for identifying the adapter used for the primary
system monitor. Your system shipped with a VGA/EGA card. If you install a non-
VGA/EGA card, you should toggle this field to reflect the type of card.

Memory Cache - Press Enter to see this detail screen. Performance is optimized
if you do the following: Set caching to Enabled, mode to Write Back, wait
states to Zero, and both BIOS items to Enabled. Every memory address field
should be set to Enabled for fastest performance. If you have an expansion card
that requires slower response for a memory region, disable that region.

Memory Shadow - Press Enter to see this detail screen. The more items set to
Enabled, the faster expansion cards with ROMs can run.

Boot Sequence - Press Enter to see this detail screen. You can set various boot
options as described on the screen.

System Memory - This is an information field, which you cannot change. It
should always say "640 KB."

Extended Memory - This is an information field, which you cannot change,
except by adding or removing memory. It should reflect your total RAM less the
first 1MB.

Advanced screen
---------------
Integrated Peripherals - Press Enter to see this detail screen. Set the COM and
LPT ports to settings that do not conflict with other peripherals. Disable the
diskette controller if the system does not use a diskette drive. Choose ECP
under LPT Mode only if you attach a parallel port device that supports ECP.

Advanced Chipset Control - These items should be set to their defaults unless
you know of a reason to change any. For example, disable PCI memory burst
cycles if you use a video card that uses the Tseng Labs  ET 4000/W32P Revision
A video controller chip (the STB "Lightspeed" PCI video card is one example).
If you back up your hard drive using Fastback Plus ver. 3.0 or if you use Media
Browser with a PCI-IDE-based CD-ROM, set Bus Park to disabled.

Plug and Play - Choose either Yes or No, depending on whether you have a Plug
and Play operating system such as Windows '95.

PS/2 Mouse - Disable this item if you use a serial or bus mouse, or no mouse at
all.

IRQ 9, 10, 11, 15 - If you use an ISA card that uses any of these IRQs, be sure
the corresponding IRQ in this list is set to "Used." This prevents the PCI bus
from taking the IRQ. At least one IRQ must be set to "Free" for use by PCI
cards.

Large Disk Access Mode - Set this item to "DOS" if you are running MS-DOS on
your system. Set it to "Other" if you are using UNIX, Novell Netware, or some
other operating system.

Power screen
------------
You can customize the power management items yourself or toggle any of the
preset built-in settings.

Power Savings - If you wish to take advantage of your system's power management
features, set this field to either Minimum, Medium, Maximum, or Custom. Setting
the field to either Minimum, Medium, or Maximum  provides the system with
preset settings for power management. Setting the field to Custom allows you
to change the characteristics of the options listed below that are marked with
an *. The options below are not alterable if the field is set to Disabled.

*Standby Timeout - Toggle this item to set how long the system waits after the
last timer reset event before entering suspend mode.

*Standby CPU Speed - The faster the CPU runs in standby, the less energy you
save.

*Fixed Disk Timeout - The longer you set this item for, the less energy you
save, but the less often you must wait for the hard drive to spin up. This
item measures the time of disk inactivity. When a set time is reached, the
disk spins down. If activity occurs before the time expires, the timer resets.

*CRT- If you use a monitor that supports suspend mode but use a video card that
doesn't, you can use this item to put the monitor into suspend mode when the
CPU enters standby. If this is enabled and your video card does support energy
saving, the selected suspend mechanism suspends the monitor.

Standby Timer Reset Events - If the item is enabled, pressing a key or moving
the mouse causes the standby timer to start over.

Standby Break Events - This list scrolls down off the screen. These items, if
set to Auto, cause the system to wake up and service the interrupting device.
If you use a modem set to auto-answer, you should enable its interrupt in this
list.

Standby Wakeup Events - These items reactivate the entire computer system if
set to Enabled.

Exit screen
-----------
Highlight the desired item and press Enter. Default values are set at the
factory. Previous values are the settings when you entered the Setup program.
Flashing the P4D BIOS (CMOS) upgrade. This section tells you how to update the
system BIOS on the P4D motherboard by performing either a manual flash or a
boot block recovery flash. We recommend using the manual flash procedure to
upgrade your system's BIOS, as the boot block recovery method is intended for
use only in the unlikely event that power to the system fails during the manual
flash process.

To manually flash the BIOS:
---------------------------
1. Make sure the BIOS upgrade disk you received is write protected. Check to
   see if the plastic tab on the back of the disk has been pushed toward the
   top of the diskette and there are open holes on both sides of the top of the
   diskette. If this is the case, the diskette is write protected.
2. Insert the BIOS upgrade diskette into the floppy drive  and switch to that
   drive letter (usually A) by typing at the MS-DOS prompt: A: and pressing
   Enter.
3. Type the following line at the command prompt and press enter:
   PHLASH /A BATIP2.ROM
4. PHLASH.EXE runs automatically.  When the BIOS update is finished, the system
   reboots automatically.  When the BIOS subsequently begins its Power On Self
   Test (POST) routine, power down the system. Remove the BIOS upgrade diskette
   from the floppy drive. Power up the system, and follow any instructions for
   updating/correcting CMOS SETUP, if CMOS changes are reported.
5. After CMOS is corrected, save and exit SETUP, and let the system auto-reset.
   The BIOS upgrade operation is complete.

To perform a boot block recovery:
---------------------------------
1. Open your system case according to the instructions in the System Guide.
   Locate the "BOOT BLOCK" jumper, J29, on the system board. Move the jumper
   from pins 2-3 to pins 1-2.
2. Make sure the BIOS upgrade disk is write protected. Check to see if the
   plastic tab on the back of the disk has been pushed toward the top of the
   diskette and there are open holes on both sides of the top of the diskette.
   If this is the case, the diskette is write protected.
3. Insert the BIOS upgrade diskette into the floppy drive. Make sure that the
   system speaker is plugged in and functioning.
4. Power up the system. After a short delay, the speaker beeps several times,
   indicating the beginning of the boot block flash recovery process. After a
   few seconds, the initial beeps are followed by a series of high pitch beeps
   (indicating EEPROM erase), then a series of low pitch beeps (indicating
   EEPROM program). This sequence is immediately followed by a short high-low
   beep that signals the completion of the boot block flash recovery process.
5. Power down the system. Move the "BOOT BLOCK" jumper back to its normal
   position, pins 2-3. Replace the case on the system, again following the
   instructions in the System Guide. Remove the BIOS upgrade diskette from
   the floppy drive. Power up the system, and follow any instructions for
   updating/correcting the CMOS Setup, if CMOS changes are reported.
6. After CMOS is corrected, save and exit Setup, and allow the system to auto-
   reset. The boot recovery flash operation is complete.

Changes to the P4D BIOS
-----------------------
The next few pages describe detailed information about the Setup program in
the upgraded P4D BIOS that is on the disk you received. This information
supersedes the Setup program information in the Technical Reference originally
shipped with your P4D system.

CPU upgrade information - If you upgrade to a P24x-type processor (such as a
P24D, P24T, or P24CT) on your P4D system, the system Setup automatically
configures the CPU's internal cache for WriteBack mode to optimize performance.
A few software applications use the commands WBINVD or INVD in their programs
to flush both CPU internal (L1) and external (L2) cache. However, these
commands produce a system hang if the CPU's internal cache is set up in
WriteBack mode. A list of affected software is provided below, along with some
recommendations for how to get around the potential system hang.

Software listing 1: All versions of Diagsoft's QAPLUS and QAPLUS FE (only
memory tests are affected). QAPLUS and QAPLUS FE non-memory diagnostics tests
run with the upgrade processor. Also, all diagnostics tests run if a non-P24x
CPU is installed in your system (that is, you reinstall your old CPU). There
is no software patch available from Diagsoft to fix the memory test problem.
However, you can call Diagsoft directly at (408) 438-8247 to ask about future
updates to these diagnostics programs that may be made available to work
around the WBINVD/INVD problem.

Software listing 2: Adaptec 1542 ISA SCSI controller card, BIOS-based
Configuration Utility - The Adaptec 1542 card comes with a floppy disk-based
version on its Configuration Utility (1540SCSI.EXE) that does not use
WBINVD/INVD, and thus the system hang problem is eliminated. This software
patch has been made available by the vendor, and can be obtained by
downloading the software directly from the Gateway 2000 BBS at (605) 232-2224.

To download the software from the BBS:
1. Log onto the Gateway 2000 BBS.
2. Select (L) Library of Files.
3. Next, select (U) Files not Supported by Gateway 2000.
4. Finally, select (1) DOS Drivers. 1540SCSI.EXE appears in the list of files
   under this heading.
   
Also, if you are running EMM386 (memory manager), it traps WBINVD or INVD from
any program that uses them and attempts to emulate the commands. In the
process, the cache flushing procedure may incorrectly write cache data to the
wrong location in main memory. We recommend that you do not run EMM386 while
running either Diagsoft's QAPLUS or QAPLUS FE, or Adaptec's 1542 ISA SCSI
controller card, BIOS-based Configuration Utility.

Applicable Part Numbers

MBDPCI001AAWW, MBDPCI001ABWW, MBDPCI002AAWW