Lenovo 800, 3091, 3265, 4285, 870, 852, 5205, 5248, 3678 Updating system programs, Using system programs

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Chapter 5. Updating system programs

This chapter provides information about updating the POST and BIOS, and how to recover from a POST and BIOS update failure.

This chapter contains the following topics:

•“Using system programs” on page 67

•“Updating (flashing) the BIOS from a disc” on page 67

•“Updating (flashing) the BIOS from your operating system” on page 68

•“Recovering from a POST/BIOS update failure” on page 68

Using system programs

System programs are the basic layer of software built into your computer. System programs include the POST, the BIOS, and the Setup Utility program. The POST is a set of tests and procedures that are performed each time you turn on your computer. The BIOS is a layer of software that translates instructions from other layers of software into electrical signals that the computer hardware can execute. You can use the Setup Utility program to view or change the configuration settings of your computer. See Chapter 4 “Using the Setup Utility program” on page 63 for detailed information.

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 the POST, the BIOS, and the Setup Utility program by starting your computer with a system-program-update disc or running a special update program from your operating system.

Lenovo might make changes and enhancements to the POST and BIOS. When updates are released, they are available as downloadable files on the Lenovo Web site at http://www.lenovo.com. Instructions for using the POST and BIOS 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 disc or an update program that can be run from the operating system.

Updating (flashing) the BIOS from a disc

This section provides instructions on how to update (flash) the BIOS from a disc.

Note: You can download a self-starting bootable disc image (known as an ISO image) with the system program updates to create a system-program-update disc. Go to: http://www.lenovo.com/support

To update (flash) the BIOS from a disc, do the following:

1.Turn off your computer.

2.Repeatedly press and release the F12 key when turning on the computer. When the Startup Device Menu opens, release the F12 key.

3.On the Startup Device Menu, select the desired optical drive as the first boot device. Then, insert the disc into the optical drive and press Enter. The update begins.

4.When prompted to change the serial number, it is suggested that you press N. However, if you do want to change the serial number, press Y, then type in the serial number and press Enter.

© Copyright Lenovo , 2011

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Contents ThinkCentre User Guide Page ThinkCentre User Guide Second Edition May Copyright Lenovo Contents Appendix A. Notices Important safety information Vi ThinkCentre User Guide Product overview FeaturesConnectivity Copyright Lenovo Operating system edition Supported touch feature SpecificationsComputer weight Software provided with your Windows operating system Software overviewLenovo ThinkVantage Toolbox Locating computer controls, connectors, and partsFront view Using your computer in monitor modeIcon Control Description Rear viewConnector Description Component locations Component locationsSystem board part and connector locations System board part and connector locationsProduct overview ThinkCentre User Guide Installing a computer wall mount Installing or replacing hardwareInstalling or replacing hardware Installing external optionsRemoving the computer cover Removing or reinstalling the frame standWhat to do next Removing or reinstalling the lift standRemoving the lift stand Reinstalling the lift stand Removing or reinstalling the rear I/O assembly coverRemoving the rear I/O assembly cover Removing or reinstalling the Vesa frame coverRemoving the Vesa frame cover Removing or reinstalling the Vesa frameRemoving the computer Vesa frame Installing or replacing a memory moduleRemoving the memory module Removing the battery Replacing the batteryReplacing the hard disk drive Installing a new batteryRemoving the hard disk drive Installing the hard disk drive Removing the optical drive Replacing the optical driveReplacing the heat sink Installing the optical driveRemoving the fan duct Removing the heat sink Replacing the microprocessor Removing the microprocessor Installing the microprocessor Replacing the WI-FI cardRemoving the WI-FI card Replacing the Bluetooth moduleReplacing the multi-touch board Removing the Bluetooth moduleRemoving the multi-touch board Replacing the ambient light sensorRemoving the ambient light sensor Removing the ExpressCard Replacing the ExpressCardRemoving the internal speakers Replacing the internal speakersReplacing the integrated camera with microphone Removing the integrated camera with microphone Replacing the microprocessor fan assemblyRemoving the microprocessor fan assembly Removing the card reader Replacing the card readerRemoving the rear I/O assembly Replacing the rear I/O assemblyRemoving the right I/O assembly Replacing the right I/O assemblyReplacing the power supply Removing the power supply Replacing the PS/2 or USB keyboard Replacing the keyboardReplacing the PS/2 or USB mouse Replacing the mouseReplacing the wireless mouse Completing the parts replacement Integrated cable lock Obtaining device drivers Basic security featuresErasing lost or forgotten passwords clearing Cmos Password protectionInstalling or replacing hardware ThinkCentre User Guide Using recovery media Recovery informationCreating and using recovery media Creating recovery mediaPerforming a backup operation Performing backup and recovery operationsUsing the Rescue and Recovery workspace Performing a recovery operationCreating a rescue medium Creating and using a rescue mediumInstalling or reinstalling device drivers Using a rescue mediumSolving recovery problems Using passwords Using the Setup Utility programStarting the Setup Utility program Viewing or changing settingsHard disk drive password Password considerationsAdministrator password Power-on passwordViewing or changing the startup device sequence Enabling or disabling a deviceSelecting a startup device Selecting a temporary startup deviceExiting the Setup Utility program Using system programs Updating flashing the Bios from a discUpdating system programs Recovering from a POST/BIOS update failure Updating flashing the Bios from your operating systemUpdating system programs ThinkCentre User Guide Basic troubleshooting Troubleshooting and diagnostic programsLenovo ThinkVantage Toolbox Diagnostic programsPC-Doctor for DOS PC-Doctor for Rescue and RecoveryCleaning an optical mouse Lenovo ThinkVantage Tools Getting information, help, and serviceInformation resources Online Books folderAccess Help Safety and warrantyLenovo Welcome Copyright Lenovo Purchasing additional services Using other servicesAppendix A. Notices European conformance CE mark Trademarks Television output noticeCRU IndexLenovo ThinkVantage Toolbox Solving recovery problems ThinkCentre User Guide Page 89Y8034

852, 800, 3091, 3429, 5248 specifications

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