Lenovo 6290, Руководство по техническому обслуживанию аппаратной части

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Chapter 9. Additional Service Information
Security features
Security features in this section include the following:
v Passwords
v
Vital Product Data
v
Management Information Format (MIF)
v
Alert on LAN
Passwords
The following section provides information about computer hardware and
software-related passwords.
v
Power-on Password
v
Administrator Password
v
Operating System Password
Power-on and Administrator passwords are set in the Setup Utility program. See
“IBM Setup Utility program” on page 9 for information about running the Setup
Utility.
Power-on password
A power-on password denies access to the computer by an unauthorized user
when the computer is powered on. When a power-on password is active the
password prompt appears on the screen each time the computer is powered on.
The computer starts after the proper password is entered.
Removing a power-on password
To service a computer with an active and unknown power-on password power-off
the computer and use the following procedure.
Note: On some models this procedure will also remove the administrator password.
1. Unplug the power cord and remove the top cover.
2.
Refer to “Identifying parts on the system board” on page 25 to find the
recovery jumper.
3. Move the virtual clear CMOS jumper from normal to recovery .
4. Power-on the computer. The system senses the change in the position and
erases the password. Wait for the beeps. Power the system off and move the
jumper back to its original position.
5. Remind the user to enter a new password when service is complete.
Administrator password
The administrator password is used to restrict access to the Configuration/Setup
Utility program. If the administrator password is activated and you do not enter
the administrator password the configuration can be viewed but not changed.
© Copyright IBM Corp. 2001
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