Lenovo IdeaPad S310, Hardware Maintenance Manual

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Chapter 10. Additional Service Information
This chapter provides additional information that the service representative might find helpful.
Security features
Security features in this section include the following:
• Passwords
• Vital Product Data
• Management Information Format (MIF)
Hardware controlled Passwords
Hardware controlled passwords are set using the Setup Utility program. For more information about
passwords, see “Using passwords” on page 51.
Operating system password
An operating system password is very similar to a power-on password and denies access to the computer
by an unauthorized user when the password is activated. The computer is unusable until the password is
entered and recognized by the computer.
BIOS levels
An incorrect level of BIOS can cause false errors and unnecessary FRU replacement. Use the following
information to determine the current level of BIOS installed in the computer, the latest BIOS available for the
computer, and where to obtain the latest level of BIOS.
• To determine the current Level of BIOS:
– Start the Setup Utility.
– Select Standard CMOS Features.
• Sources for obtaining the latest level BIOS available
1. Lenovo support web site:
http://www.lenovo.com/support/
2. Lenovo Customer Support Center
3. Levels 1 and 2 Support
To update (flash) the BIOS, see “Flash update procedures” on page 127.
Flash update procedures
This section details how to flash (update) the BIOS.
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:
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