Click here for instructions and limitations on downloading and creating the diskette.

Click here to obtain a diskless version of this BIOS Update for Microsoft Windows 95/98/NT/2000/XP.

This Additional Information field contains the following sections
I. Summary of changes
II. Installation instructions
III. BIOS information with links to previous BIOS releases
IV. Slave Controller information
V. Memory information
VI. Simple Boot Flag function
VII. Microsoft Windows 2000 diskette drive/drive letter handling
VIII. Boot Menu

I. Summary of changes
Version 1.11 - ITET55WW

• (New) Microsoft Windows XP Support
• (Fix) Operating system installation failure with CD-ROM boot

Click here for a complete list of changes fixed by this BIOS update.

II. Installation instructions
NOTES:

• You need an AC adapter and a charged battery pack to update the system program.
• If your computer is attached to any kinds of Docking station or port replicator, turn off the computer and detach it before proceeding.

1. Print these instructions or display on another computer.
2. Firmly connect the AC adapter to the computer.
3. Insert the System Program Service Diskette into the diskette drive and turn on the computer.
4. Select Read this first from the menu and carefully read the information that appears.
5. Press the Esc key to return to the menu.
6. Select Update system program and follow the instruction on the screen.
   
   Warning: Do not turn off or suspend the computer until the update has been completed. If you turn off or suspend the computer while the update is still in progress, the system board may have to be replaced.
   
   After the update has been completed, do the following to make the changes effective.
   
   
7. Make sure the System Program Service Diskette is removed from the diskette drive, then turn off the computer.
8. Press and hold the F1 key, then turn on the computer. Hold the F1 key until the Easy-Setup menu appears.
9. If a password prompt appears, type the correct password.
10. Select Config, then select Initialize.
11. Select OK to initialize the system.
12. Press the Esc key to exit Config and turn off the computer.

1. Power on the system.
2. When the message Press F1 for IBM BIOS setup Utility appears at the bottom right hand corner, press the F1 key. Wait for the BIOS Utility screen to appears.
3. Select System Information. BIOS version is displayed at System BIOS Version line.

1. Hold down the F1 key on the ThinkPad and power on the system.
2. Open the Config icon.
3. Open the Quick Boot icon.
4. Set Simple Boot Flag to Enable or Disable depending on configuration.

VII. Windows 2000 diskette drive/drive letter handling
Diskette drive and drive letter handling under Windows 2000 environment has been changed to fixed drive letter assignment.

• External diskette drive letter : A drive (A:)
  
• Ultraslim Bay diskette drive letter : B drive (B:)

VIII. Boot Menu
When this option is enabled a startup Boot Menu will appear allowing you to choose the bootable device. This function is enabled or disabled via the Easy Setup option in BIOS. Enabling or disabling the Boot Menu:

1. Power off the system.
2. Press and hold the F1 on the ThinkPad keyboard, and power on the system. This will bring up the Easy Setup menu screen.
3. Click the Config icon.
4. Click the Boot Menu F12 icon.
5. Select enable or disable and click OK.
6. Click Exit to leave the Config menu.
7. Click Startup, then click Power-on.
8. If any items are selected, these are the items that will appear in the Startup Menu. If no items are selected, all startable items will appear in the menu.
9. Click OK to close the Startup devices selection list.
10. Click Exit to close the startup mode selection list.
11. Click Restart then OK to restart the system.

1. Shutdown the system so that it is powered off.
2. Press and hold the F12 key while powering on the system. The Boot Menu should appear. Use the up and down arrow keys to select the boot device.