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 39.

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.

Vital product data

Each computer has a unique Vital Product Data (VPD) code stored in the nonvolatile memory on the system board. After you replace the system board, the VPD must be updated. To update the VPD, see “Updating (flashing) BIOS from a CD-ROM or diskette” on page 139.

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 System Information on the Main setup screen.

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 “Updating (flashing) BIOS from a CD-ROM or diskette” on page 139.

Updating (flashing) BIOS from a CD-ROM or diskette

This section describes how to update (flash) the BIOS using a CD-ROM or diskette. system program updates are available athttp://www.lenovo.com/support on the World Wide Web.

1. To update (flash) the BIOS:

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Lenovo 6395, 6394, 6393, 6397, 6396 manual Additional Service Information

6396, 6397, 6393, 6394, 6395 specifications

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