Lenovo A50, M50e Series manual Appendix A. Updating system programs, System programs

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Appendix A. Updating system programs

This appendix contains information about updating system programs and how to recover from a POST/BIOS update failure.

System programs

System programs are the basic layer of software that is built into your computer. They include the power-on self-test (POST), the basic input/output system (BIOS) code, and the IBM Setup Utility program. POST is a set of tests and procedures that is performed each time you turn on your computer. BIOS is a layer of software that translates instructions from other layers of software into electrical signals that the computer hardware can understand. You can use the IBM Setup Utility program to view and change the configuration and setup of your computer.

Your computer system board has a module called electrically erasable programmable read-only memory (EEPROM, also referred to as flash memory). You can easily update POST, BIOS, and the IBM Setup Utility program by starting your computer using a flash update diskette or by running a special update program from your operating system.

IBM might make changes and enhancements to the system programs. When updates are released, they are available as downloadable files on the World Wide Web (see the Quick Reference). Instructions for using the system program updates are available in a .txt file that is included with the update files. For most models, you can download either an update program to create a system-program-update (flash) diskette or an update program that can be run from the operating system.

Updating (flashing) BIOS from a diskette

1.Insert a system program update (flash) diskette into the diskette drive (drive A) in your computer. System program updates are available at http://www.ibm.com/pc/support/ on the World Wide Web.

2.Turn on the computer. If it is on already, you must turn it off and back on again. The update begins.

Updating (flashing) BIOS from your operating system

Note: Due to constant improvements being made to the IBM Web site, Web page content (including the links referenced in the following procedure) is subject to change.

1.From your browser, type http://www.pc.ibm.com/support in the address field and press Enter.

2.Locate the Downloadable files for your machine type.

3.Under Select your product, choose your machine type and click Go.

4.In Downloadable file by category, click BIOS.

5.Under Download files - BIOS by date, click your machine type.

6.Scroll down and look for a .txt file that has instructions for Flash BIOS update from the operating system. Click the .txt file.

7.Print these instructions. This is very important since they are not on the screen after the download begins.

© Copyright IBM Corp. 2004

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Contents ThinkCentre Page ThinkCentre Page Contents Appendix C. Manual modem Conditions that require immediate action Important safety informationService General safety guidelinesPower cords and power adapters Plugs and outlets Extension cords and related devicesBatteries Heat and product ventilation CD and DVD drive safetyTo connect To disconnect Additional safety informationModem safety information Lithium battery noticeConnexion Déconnexion Consignes de sécurité relatives au modem Laser compliance statementXii User Guide Information resources OverviewIdentifying your computer Types 8149, 8177, FeaturesVideo subsystem Operating systems preinstalled varies by model type Specifications Tools required Available optionsHandling static-sensitive devices Locating the connectors on the front of your computer Installing external optionsLocating the connectors on the rear of your computer Obtaining device drivers Connector DescriptionRemoving the cover Identifying parts on the system board Locating componentsInstalling memory What to do next Installing adaptersWhat to do next Drive specifications Installing internal drivesInstalling a drive User Guide Connecting the first CD drive or DVD drive Connecting a serial ATA hard disk drive Installing security featuresRope clip Identifying security locksUser Guide Changing the battery Integrated cable lock Password protectionErasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables User Guide Types 8126, 8174, 8175, Power supply with manual voltage selection switch Operating systems certified or tested for compatibility3 Height 398 mm 15.67 Width 180 mm 7.08 Depth 402 mm 15.82 Available options Installing external options Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Obtaining device drivers Removing the cover Locating components Installing memory What to do next Installing adapters Secure the adapter with the screw as shown Drive specifications Installing a drive Connecting the first CD drive or DVD drive Installing security features 1 Rope clip 2 Integrated cable lock 3 Padlock loop Types 8126, 8174, 8175, and 8176 Integrated cable lock Password protection Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables Types 8126, 8174, 8175, and 8176 User Guide Types 8084, 8085, 8147, 8148, Internal drives Operating systems certified or tested for compatibility5 Height 413 mm 16.25 Width 191 mm 7.5 Depth 406 mm 16 Available options Installing external options Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Obtaining device drivers Removing the cover Locating components Installing memory Installing adapters What to do next Installing internal drives Installing a drive Types 8084, 8085, 8147, 8148, and 8179 Connecting the first CD drive or DVD drive Installing security features Identifying security locks Types 8084, 8085, 8147, 8148, and 8179 Integrated cable lock Password protection Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables Types 8084, 8085, 8147, 8148, and 8179 User Guide Using the IBM Setup Utility program Setting, changing, and deleting a password Administrator passwordUsing Security Profile by Device Selecting a startup deviceSelecting a temporary startup device Advanced settingsChanging the startup sequence User Guide Updating flashing Bios from your operating system Updating flashing Bios from a disketteAppendix A. Updating system programs System programsRecovering from a POST/BIOS update failure Cleaning an optical mouse Appendix B. Cleaning the mouseCleaning a mouse with a ball User Guide Basic AT commands Appendix C. Manual modem commandsSet Pulse dial as default Low speaker volumeSet Tone Dial as default Internal speaker on until carrier detectedExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commandsVoice commands Appendix C. Manual modem commands User Guide CRU parts list Appendix D. Customer replaceable unit CRU parts listUser Guide Appendix E. Notices Trademarks Television output noticeDrives IndexReplacing the cover Page Part Number 19R0764

A50, M50e Series specifications

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