Chapter 12. 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:
vPasswords
vVital Product Data
vManagement Information Format (MIF)

Hardware controlled Passwords

Hardware controlled passwords areset 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.

Vital product data

Each computer has a unique Vital Product Data (VPD) code storedin the
nonvolatile memory on the system board. After you replace the system board,the
VPD must be updated. Toupdate the VPD, see “Updating (flashing) BIOS from a
CD-ROM or diskette” on page 786.

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.
vTodetermine the current Level of BIOS:
– Start the Setup Utility.
– Select Standard CMOS Features.
vSources 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
Toupdate (flash) the BIOS, see “Updating (flashing) BIOS from a CD-ROM or
diskette” on page 786.
© Lenovo 2005, 2008. Portions © IBM Corp. 2005. 785