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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 59
•“Updating (flashing) the BIOS from a disc” on page 59
•“Updating (flashing) the BIOS from your operating system” on page 60
•“Recovering from a POST and BIOS update failure” on page 60
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 55 for detailed information.
Your computer system board has a module called electrically erasable programmable
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
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
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 startup device. Then, insert the disc into this optical drive and press Enter. The update begins.
4.When prompted to change the serial number, it is suggested that you do not make this change by pressing N. However, if you do want to change the serial number, press Y, then type in the serial number and press Enter.
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