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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
Hardware-controlled passwords
Use the Setup Utility program to set the hardware controlled passwords. For more
information about passwords, see "Using passwords" on page 49.
Operating system password
Note: This section applies only to computer models that have an operating system
preinstalled from Lenovo.
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 correct 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) the BIOS from
a disc" on page 180.
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 "Updating (flashing) the BIOS from a disc" on page
180.
© Copyright Lenovo 2010
– Start the Setup Utility program.
– See BIOS Revision Level on the Main setup screen.
1. Lenovo support web site:
http://www.lenovo.com/support/
2. Lenovo Customer Support Center
3. Levels 1 and 2 Support
179
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