Flash BIOS update - bootable diskette version for ThinkCentre A53 (type 8701, 8702, 8970, 8973, 8980, 8983, 8992, 8995, 9276, 9277, 9286, 9287, 9378, 9387, 9628, 9635) Version 2PKT18A Installation README This package updates the basic input/output system (BIOS) on ThinkCentre A53 (type 8701, 8702, 8970, 8973, 8980, 8983, 8992, 8995, 9276, 9277, 9286, 9287, 9378, 9387, 9628, 9635) 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 2pjt18a.exe in the search field, then click Find Now. This will locate the file you just downloaded. 4. Double-click the 2pjt18a.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: 2PJTxxA is the flash diskette level. 2PKTxxA 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 2PKTxxA/2PJTxxA: 2PKT18A/2PJT18A - Adds a warning message when flashing BIOS to older version - Adds support for Microsoft Windows Vista - Adds support for SMBIOS 2.4 2PKT17A/2PJT17A - Fixes a problem where the system will sometimes hang when entering the Setup utility when a USB keyboard or mouse is attached 2PKT16A/2PJT16A - Adds support for Intel Celeron D 331 CPU - Fixes a problem where the system sometimes fails to write to the floppy diskette drive in legacy mode 2PKT15A/2PJT15A - Fixes a USB compatibility problem with some USB devices 2PKT14A/2PJT14A - Fixes a problem where the system sometimes hangs during POST with a special keyboard - Adds error report when CD-ROM changes 2PKT13A/2PJT13A - Fixes a problem where the system fails to detect Hyperthreading capability on some types of CPU 2PKT12A/2PJT12A - Fixes compatibility with special CD-ROM 2PKT11A/2PJT11A - Fixes a problem where the wake on RTC weekly alarm fails - Fixes a problem where the system will hang when woken up by holding the power button longer than 4 seconds 2PKT10A/2PJT10A - 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 2006, all rights reserved