Lenovo NetVista Hardware Maintenence Manual for Netvista 6838 and 6848 systems - Page 80

Power-on password, Removing a power-on password, Administrator password, Operating system password

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Page 80 highlights

Power-on and Administrator passwords are set in the Setup Utility program. See "Using the Configuration/Setup Utility program" on page 19 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 "System board layout" on page 39 to find the recovery jumper. 3. Move the recovery jumper from normal to clear. 4. Power-on the computer. The system senses the change in the position and erases the password. It is necessary to move the jumper back to the previous 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. Note: Type 6838, 6848 computers have Enhanced Security Mode. If Enhanced Security mode is enabled and there is no password given, the computer will act as if Enhanced Security is disabled. If Enhanced Security is Enabled and an administrator password is given, the administrator password must be entered to use the computer. If the administrator password is lost or forgotten, the system board in the computer must be replaced in order to regain access to the Configuration/Setup Utility program. Administrator password control The Administrator password is set in the Setup Configuration. Refer to "Using the Configuration/Setup Utility program" on page 19. 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 (BIOS/VPD) update procedure" on page 74. 72 IBM NetVista Type 6838, 6848: Hardware Maintenance Manual

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Power-on and Administrator passwords are set in the Setup Utility program. See
“Using the Configuration/Setup Utility program” on page 19 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 “System board layout” on page 39 to find the recovery jumper.
3.
Move the recovery jumper from
normal
to
clear
.
4.
Power-on the computer. The system senses the change in the position and
erases the password.
It is necessary to move the jumper back to the previous 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.
Note:
Type 6838, 6848 computers have Enhanced Security Mode. If Enhanced Security mode is
enabled and there is no password given, the computer will act as if Enhanced Security is
disabled.
If Enhanced Security is Enabled and an administrator password is given, the administrator
password must be entered to use the computer. If the administrator password is lost or
forgotten, the system board in the computer must be replaced in order to regain access to
the Configuration/Setup Utility program.
Administrator password control
The Administrator password is set in the Setup Configuration. Refer to “Using the
Configuration/Setup Utility program” on page 19.
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 (BIOS/VPD) update
procedure” on page 74.
72
IBM NetVista Type 6838, 6848: Hardware Maintenance Manual