Chapter 11. Additional Service Information; Security Features; Hardware Controlled Passwords; Operating System Password - Lenovo ThinkCentre Hardware Maintenance Manual

Chapter 11. 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:
v Passwords
v Vital Product Data
v 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 49.

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 "Flash update procedures."

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.
v To determine the current Level of BIOS:
v Sources for obtaining the latest level BIOS available
To update (flash) the BIOS, see "Flash update procedures."

Flash update procedures

This section details how to flash (update) the BIOS.
© Lenovo 2005, 2008. Portions © IBM Corp. 2005.
– Start the Setup Utility.
– Select Standard CMOS Features.
1. Lenovo support web site:
http://www.lenovo.com/support/
2. Lenovo Customer Support Center
3. Levels 1 and 2 Support
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