Erasing a lost or forgotten password (clearing CMOS)
This section applies to lost or forgotten passwords that are not protected by
Enhanc ed Security. For information about lost or forgotten passwords that are
protected by Enhanced Security, see “Using Enhanced Security” on page 31.
To erase a forgotten password:
1.
Turn off the computer and all attached devices.
2.
Unplug the power cord.
3.
Remove the cover. See “Removing the cover” on page 45.
4.
Refer to the system board cover label inside the computer to locate the
clear CMOS jumper on the system board.
5.
Set the jumper from the standard position (pins 1 and 2) to pins 2 and 3.
6.
Replace the cover and plug in the power cord. See “Replacing the cover
and connecting the cables” on page 66.
7.
Restart the computer, leave it on for about ten seconds, and then turn off
the computer.
8.
Repeat steps 2 through 4.
9.
Set the jumper back to the standard position (pins 1 and 2).
10.
Replace the cover and plug in the power cord. See “Replacing the cover
and connecting the cables” on page 66.
Using Adapter ROM security
Adapter ROM security prevents unauthorized users from altering the setup of
vital adapters in your computer. You can set Adapter ROM security to on or
off.
Using the IBM Embedded Security Chip
Some models come with the IBM Embedded Security Chip. The Embedded
Security Chip is a built-in cryptographic technology that can be used to secure
the electronic transmission of information. To use the security features on this
chip, you must also install security software that is available at
http://www.ibm.com/pc/support/ on the World Wide Web.
To enable the IBM Embedded Security Chip, do the following:
1.
Start the Configuration/Setup Utility program. See “Starting and using the
Configuration/Setup Utility program” on page 29.
2.
Select
System Security
and press Enter.
3.
Select
IBM Embedded Security Chip
and press Enter.
4.
Set
IBM Embedded Security Chip
and press Enter.
5.
Type the password in the bracketed field and press Enter.
Chapter 4. Using the Configuration/Setup Utility program
37
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