Flash BIOS update - bootable diskette version
for ThinkCentre(R) 8127, 8128, 8183, 8184, 8185, 8186, 8187, 8188,
    8189, 8190, 8192, 8193, 8194, 8195, 8196, 8197, 8320, 8416,
    8418, 8419, 8432, 8433
Version 2AKT51A
Installation README


This package updates the basic input/output system (BIOS) on
ThinkCentre 8127, 8128, 8183, 8184, 8185, 8186, 8187, 8188, 8189,
8190, 8192, 8193, 8194, 8195, 8196, 8197, 8320, 8416, 8418, 8419,
8432, and 8433 systems.

BIOS is programming that controls low-level hardware operations,
including interactions with diskette drives, hard drives, and the
keyboard. The BIOS is stored on a chip. Your computer uses flash
BIOS, which can be updated through a program on a flash diskette
so that you do not have to replace the BIOS chip to update the
BIOS.

Note: Make note of any settings you have changed in the BIOS
Configuration Utility.  These settings may have to be re-entered
after updating the BIOS.

Print this file so that you can refer to it during the installation.


Downloading the update
----------------------
1. Click the file link to download the file from the web page.
2. When prompted, select a drive and directory in which to save 
   the downloaded file, be sure to select a path that does not
   have a space in its name.


Extracting the update
---------------------
Installing this update involves creating a BIOS flash diskette and
running the flash program from the diskette. Before you begin,
have a blank 1.44 MB diskette ready.

1. Click Start, select Find or Search, then click Files and Folders.
2. Insert a blank 1.44MB floppy diskette into the diskette drive.
3. Type 2ajt51a.exe in the search field, then click Find Now. This
   will locate the file you just downloaded.
4. Double-click the 2ajt51a.exe icon.
5. Follow the onscreen prompts. The necessary files will be
   extracted to the diskette.


Installing the update
---------------------
1.  Close all open applications.
2.  Leave the diskette in the A: drive, and shut down and restart
    the computer to start the BIOS flash program.
3.  When you are prompted to select a country, press the number
    on your keyboard which corresponds to the country in which you
    are using the computer. For example, press 1 for the United
    States.
4.  Press Enter. You will be asked if you wish to update the serial
    number of your machine.
5.  Press N. You will be asked if you wish to update the machine
    type/model number of your machine.
6.  Press N. The Phoenix Phlash16 utility will appear onscreen.
7.  Wait until you see a message stating

    -------------Phoenix Phlash16 Status-------------
    |                                               |
    | Flash memory has been successfully programmed |
    |                                               |
    |      PRESS KEY TO RESTART THE SYSTEM          |
    |      If the system does not restart           |
    |       TURN THE POWER OFF, THEN ON             |
    |                                               |
    -------------------------------------------------

8.  Remove the diskette from the diskette drive.
9.  Press Enter.


Summary of changes
------------------
General Information:

2AJTxxA is the flash diskette level.
2AKTxxA is the binary image level. (BIOS)
NOTE: All changes carry forward. That is, if a change is added
      in 01, it is also in 02, 03 etc.

Changes for 2AKTxxA/2AJTxxA:

2AKT51A/2AJT51A
- Fixes the MAC address displayed in Setup. This problem was
  introduced in BIOS 2AKT50A.

2AKT50A/2AJT50A
- Adds code to issue hard drive "freeze lock" command to all
  drives on return from S3 power state
- Updates copyright message to include Lenovo
- Adds new microcode for 0F29. Patch ID was 0021h, now 002Eh.

2AKT49A/2AJT49A
- Fixes a problem where the Colorgraphics Xentera GT 4 video
  adapter card fails in Windows. This adapter has two devices
  (0 and 1); we need to add _PRT entries for device 1
- Fixes a problem where the 3COM Fibre Channel card causes BIOS
  setup to freeze. Don't get MAC address for any device but the
  onboard LAN.

2AKT48A/2AJT48A
- Fixes a problem where the asset tag is corrupted when the asset
  tag in EEPROM (POV-3) is longer than the one in flash. Limits
  the copy to the length of the flash string.
- Fixes a problem in the Spanish language version of the Setup
  utility where the UUID is truncated
- Fixes a problem where the BIOS flash diskette crashes if a
  wrong key is pressed. This was not a BIOS change, this is fixed
  by a new phlash16.exe, version 1.6.0.4.

2AKT47A/2AJT47A
- Updates the fan control in an attempt to balance both thermal
  and acoustics. (Increases fan speed gradually by small steps
  instead of a big jump. Disables fan speed hysteresis when
  temperature gets above the voltage regulator overheat threshold,
  to cool it quickly.)

2AKT46A/2AJT46A
- Adds new microcode for 0F34 (patch ID was 0Eh, now 13h) and
  0F41 (patch ID was 05h, now 09h)
- Adds a fan control update that will skip the voltage regulator
  temperature test on the small-form-factor chassis

2AKT45A/2AJT45A
- Rerelease of BIOS 44A

2AKT44A/2AJT44A
- Fixes a problem where the system will hang at boot when TCPA is
  enabled and a long bad password is entered
- Fixes a problem where the system cannot extend PCRs 8-15 using
  INT 1A (TCPA)
- Corrects the IOAPIC pin assignment for IRQ0/pin 2
- Fixes the support for the 0F41 (Prescott E0-step) processor

2AKT43A/2AJT43A
- Fixes a problem where winphlash reboots the system unexpectedly
- Fixes a problem where the LAN fails intermittently

2AKT42A/2AJT42A
- Fixes a problem where the Pentium 4 logo is displayed when
  the system is using a 0F34 Prescott Celeron processor
- Fixes a problem where the system hangs while booting Windows  XP if the USB optical mouse is moved during the transition
- Fixes a problem where the system hangs with 0F41 (Prescott
  E0-step) processor
- Increases SMBIOS Type 4 structure maximum CPU speed entry from
  3200MHz to 3400MHz
- Fixes a problem where the system hangs if AC power is lost
  during S3 standby

2AKT41A/2AJT41A
- Fixes a problem where the floppy diskette drive settings are
  lost when Setup is initiated from the IBM Predesktop Area
- Fixes a problem where the system may hang during power on with a
  Token Ring adapter when the onboard Ethernet is enabled but the
  PXE Boot Agent is disabled
- Fixes a problem on TCPA systems where the last five characters
  of the default asset tag string are not cleared

2AKT40A/2AJT40A
- Corrects the display of characters in older DOS applications on
  non-English systems
- Fixes a problem where the system constantly reboots in a loop with
  a Hitachi and Western Digital drive combination
- Adds fan control to increase fan speed if the processor Voltage
  Regulator is over 70C
- Adds an Intel errata patch for the microprocessor firmware to
  address a potential issue that might cause a system to exhibit
  erratic behavior such as a system hang, reboot, blue screen, or
  Kernel Panic in Linux, and may also cause in-progress system
  operations (e.g., file, I/O) to fail. The possibility of this
  behavior is believed to be limited, but IBM strongly recommends
  that customers install this update as soon as possible to prevent
  the possibility of the issues listed above.

  See Retain Tip H181898 for more details on this issue:
  http://www.ibm.com/pc/support/site.wss/document.do?lndocid=TCTR-ERRN91

  The IDs of the affected microprocessors are 0F29, 0F33, and 0F34.

  NOTE: If you want to apply this processor patch without updating
  the rest of BIOS, refer to the "FLASHING BACK TO AN OLDER LEVEL OF
  BIOS" topic in the README.1ST file contained in this BIOS update
  package

  Determining the processor ID
  ----------------------------
  There are several ways to determine the ID of the processor:
      
  1. Go to BIOS setup (hold down the F1 key and power up the system)
     and look under the "Advanced" tab. (The processor ID is about
     1/2 way down the screen.)

  2. Use the Microsoft "System Information" tool. Go to the task bar
     and click through the following selections:

     Click Start, select Programs, select Accessories, select System
     Tools, then click System Information.

     The first screen displayed with this tool has processor
     information.

     For example, a F24 ID processor will have the following entry.
     (The "F" is translated to a "15" by this tool.)

     "Processor x86 Family 15 Model 2 Stepping 4 GenuineIntel .."

  3. DMI information. The processor ID is presented in the DMI
     (Desktop Management Interface) Type 4 structure. There are
     various tools (DMI browsers) available to view this information.

  4. If you have a Windows installation that for some reason does
     not have the "System Information" tool, a utility to display the
     processor ID can be obtained from Intel at the following URL:

     http://support.intel.com/support/processors/tools/frequencyid/  

  5. System administrators may wish to refer to the following URL for
     an example of a Microsoft script file that extracts (among other
     things) the processor ID:

     http://www.microsoft.com/technet/community/scriptcenter/compmgmt/scrcm73.mspx

2AKT39A/2AJT39A
- Fixes a violation of the USB 1.1 specification for Reset Recovery
  Time
- Corrects the display of accented characters in some languages at
  runtime. For example, the boot password prompt.
- Fixes a problem where BIOS ACPI IRQ 10 or 11 causes Windows XP to
  hang
- Fixes SMBIOS structure 24 information about passwords

2AKT38A/2AJT38A
- Fixes a problem where pressing F12 causes the system to boot
  to the PreDesktop Area
- Adds a feature so that if the processor temperature is above
  65 degrees C at the beginning of POST (indicating a very fast
  temperature rise), the fans are set to 50% instead of 20%
- Adds microcode for Intel Prescott 0F34 (D-1) processor
- Fixes a problem where pressing the Enter key, followed by a 2nd
  Enter key to pause, followed by F1 does not enter setup as
  expected

2AKT37A/2AJT37A
- Fixes a problem where the mouse moves erratically in Microsoft
  Windows NT 4.0 by flushing the keyboard controller output buffer
  on resume from Advanced Power Management (APM) standby
- Fixes a problem in WinPhlash that causes error "-151" (Unable to
  find part ID)

2AKT36A/2AJT36A
- Adds new SMI function
- Adds the D-0 processor patch to the flash diskette
- Fixes a problem where a system may intermittently hang during
  the memory test of the Enhanced Power On Self Test (POST)

2AKT35A/2AJT35A
- Fixes a problem where a system loses of time during APM standby
  under Windows NT4 and DOS
- Fixes a problem where a system with a ScrollPoint II PS/2 mouse
  hangs at TP52
- Updates the thermal control for Intel Prescott processors
- Fixes a problem that occurs when performing a BIOS flash update
  from Remote Deployment Manager (RDM) 4.1

2AKT34A/2AJT34A
- Fixes a problem where USB port 6 and port 7 are not available
  in BIOS 33A (applies only to ThinkCentre A50 and S50 systems)

2AKT33A/2AJT33A
- Fixes a problem where the front USB ports do not disable. Due
  to a hardware limitation in the S50 product, the front ports
  can only be disabled by disabling all USB. The M50 and A50
  products will display the setup question.
- Fixes a persistent 1762 (number of hard disk drives has changed)
  POST error when startup "Power On Self Test" = Enhanced and four
  hard disk drives are present. (If your system is displaying 1762
  or 0162, you must clear the errors by entering Setup and selecting
  "Save Settings And Exit" either before or after upgrading the
  BIOS).

2AKT32A/2AJT32A
- Fixes a problem with boot block recovery with H-L GSA-4040B
  DVD+RW drive (requires bootblock update)
- Fixes a problem where there is no video after standby/resume with
  a USB RAK3 keyboard
- Fixes a problem where Wake On LAN does not boot to the automatic
  startup sequence
- Updates Machine Type/Model table
- Provides a new version of the onboard Gigabit Ethernet (GE
  v1.2.16p1)

2AKT31A/2AJT31A
- Fixes boot block recovery with some CD-RW drives (requires
  bootblock update)
- Fixes boot block recovery with new revision of Teac USB
  floppy drive (requires bootblock update) 
- Adds setup question to enable or disable the front USB ports
- Improves efficiency of PCI memory allocation to take up less
  overall address space
- Fixes POST hang when PATA is Disabled and SATA is Native
- Fixes 1805 POST error with certain old PCI cards

2AKT29A/2AJT29A
- Fixes a problem where the CGA font is not found
- Fixes a problem where POST HotKeys may not by recognized with POV
  systems
- Fixes an ethernet failure by resetting the ethernet controller on
  normal (S4/S5) powerup

2AKT28A/2AJT28A
- This was an internal release. Any changes will be documented
  in a future release.

2AKT27A/2AJT27A
- Fixes a problem where Ethernet fails with POV and Serial ATA
  (SATA) in native mode

2AKT26A/2AJT26A
- Fixes a problem where a SCSI device stalls the system
- Fixes a problem where the Admin password is required when booting
  from a CD
- Fixes a problem that occurs when performing a boot block recovery
  with an IDE optical device and a USB floppy (requires bootblock
  update)
  NOTE: This BIOS contains Memory Reference Code version 1.3 and
        GMCH BIOS Spec Update 1.4

2AKT25A/2AJT25A
- Fixes intermittent failures booting from a USB floppy diskette
  drive
- Fixes a problem where the system will not boot with 4 hard disk
  drives
- Fixes hang that occurs with the Intel USB Wireless Ethernet
  adapter
- Adds a new 1GB Ethernet option ROM, "Intel(R) Boot Agent GE
  v1.2.16"
- Fixes intermittent SATA drive failures that occur during S3
  resume

2AKT24A/2AJT24A
- Fixes "Power LED not on during bootblock/Clear CMOS state"
- Fixes "When restoring AC power, system always auto-power on"

2AKT23A/2AJT23A
- re-release of BIOS 22A

2AKT22A/2AJT22A
- Clears the keyboard buffer in function "Boot to PSA"
- Fixes "System halt when install memory 3.5GB"
- Fixes "Video adaptors (AGP and PCI) hang system in POST with 4GB"

2AKT21A/2AJT21A
- Adds 3.2GHz string for CPU speed reporting in setup
- Fixes problem of not booting to certain USB floppy drives by
  increasing cold seek timeout
- Changes behavior of PS/2 Mouse setup question. Used to be
  Disabled/Enabled, automatically fixed up based on presence. Now
  Disabled/Auto/Enabled, where Auto is like old Enabled and Enabled
  stays enabled no matter what.
- Adds new 1GB LAN option ROM: "GE v1.2.10p1", which fixes problem
  with Wake on LAN after PXE boot

2AKT20A/2AJT20A
- Fixes Windows 98 USB mouse/keyboard hang after S1 and S3
- Firstware: Fixes potential issue accessing 48-bit LBA drives
- Thermal profile update (1-degree resolution)
- Revised microcode update for 0F29 processor
- Intel 865G BIOS Spec Update 1.3 erratum #2 (for CKE glitch on S3
  entry)

2AKT19A/2AJT19A
- Optimizes temperature/acoustics for 3.06GHz CPU
- Corrects video shared memory setup to show correct amount of
  memory used

2AKT18A/2AJT18A
- Initial Production Release


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----------
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Copyright (c) 2003 IBM Corporation 