Flash BIOS update - bootable diskette version for ThinkCentre A55 (type 9636, 9638, 9640, 9641) ThinkCentre M55e (type 9642, 9643, 9644, 9645) Version 2QKT17A Installation README This package updates the basic input/output system (BIOS) on ThinkCentre A55 (type 9636, 9638, 9640, 9641) and ThinkCentre M55e (type 9642, 9643, 9644, 9645) 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 package ======================= 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 diskette ============================== Installing this update involves creating a BIOS flash diskette and running the flash program from the diskette. Before you begin, have two blank 1.44 MB diskettes 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 2qjt17a.exe in the search field, then click Find Now. This will locate the file you just downloaded. 4. Double-click the 2qjt17a.exe icon. 5. Follow the onscreen prompts. The necessary files will be extracted to the diskette. 6. Label the diskette "Flash BIOS update diskette". Installing the package ====================== 1. Close all open applications. 2. Insert the diskette labelled "Flash BIOS update diskette" into drive A:, and shut down and restart the computer to start the BIOS flash program. 3. The current BIOS level on the system is compared to that on the flash update diskette. If the levels are the same, or the level on the diskette is older than the ROM, a message is displayed stating: "BIOS ROM file is older than (or same as) BIOS ROM image. Continue Anyway? (y/n)" 4. The update may take up to 2 minutes. Do not power off or restart the system during this procedure! 5. Wait until you see a message stating that the update has completed successfully. 6. Remove the diskette from the diskette drive. 7. Press Enter. Summary of changes ================== General Information: 2QJTxxA is the flash diskette level. 2QKTxxA 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 2QKTxxA/2QJTxxA: 2QKT17A/2QJT17A - Fixes a problem where the USB 2.0 controller is disabled when a USB keyboard is attached - Changes the default value of "Hyper-Threading" in CMOS Setup to "Enabled" 2QKT16A/2QJT16A - Fixes CF issue 2QKT15A/2QJT15A - Fixes a problem with the PS/2 keyboard 2QKT14A/2QJT14A - Adds Chassis intrusion Switch - Fixes a poblem where some functions are abnormal under Microsoft Windows Vista 2QKT13A/2QJT13A - Enhances Thermal & acoustic setting - Fixes a problem where the memory size on POST is different from size shown in BIOS setup - Fixes a problem where the PCI Wake Up option is always working even if it is disabled 2QKT12A/2QJT12A - Initial Production Release Trademarks ========== ThinkPad, ThinkCentre and Think Accessories are registered trademarks of Lenovo. Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both. Other company, product, and service names may be trademarks or service marks of others. THIS DOCUMENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. WE DISCLAIM ALL WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY WITH RESPECT TO THE INFORMATION IN THIS DOCUMENT. BY FURNISHING THIS DOCUMENT, WE GRANT NO LICENSES TO ANY PATENTS OR COPYRIGHTS. Copyright (c) Lenovo 2007, all rights reserved