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Power-on password
After you set a power-on password, you can enable the unattended-start mode.
This locks the keyboard and mouse, but allows the server to start the operating
system. The keyboard and mouse remain locked until you enter the correct
password.
You can use any combination of up to seven characters (A–Z, a–z, and 0–9) for the
power-on password. Keep a record of the password in a secure place. If you forget
the power-on password, you can regain access to the server by removing the
battery and then installing the battery, or by overriding or bypassing the power-on
password; see “Setting the password override jumper”
Setting the password override jumper: When a power-on password is set,
POST does not complete until you enter the password. If you forget the power-on
password, you can regain access to the server through either of the following
methods:
v Enter the administrator password at the power-on prompt, if an administrator
password has been set. (See “Administrator password” for details.) Start the
Configuration/Setup Utility program and change the power-on password. See
“Power-on password”
v Change the position of the jumper on J15 to bypass the power-on password
check. You can then start the Configuration/Setup Utility program and change the
power-on password. See “System board component locations” on page 42 for the
location of J15.
Notes:
1. Turn off the server, and disconnect all power cords before moving any jumpers.
2. Jumpers J19 and J3 are located on the same jumper block as jumper J15 on
the system board. These jumpers are set to Disabled. Do not change the
settings on these jumpers.
Attention: If you change the settings on these jumpers, the server will fail.
Table 7. Jumper J15 on the system board
Jumper name Description
J15 Power-on password override Changing the position of this jumper bypasses the power-on
password check if the jumper has been moved since the server
was last powered on. You do not need to move the jumper back
to the default position after the password is overridden. The
default position is a jumper on pins 1 and 2.
Changing the position of this jumper does not affect the
administrator password check if an administrator password is set.
For more information on jumper locations, see “Changing jumper positions” on
page 69
Administrator password
Select this choice to set an administrator password. The administrator password
provides access to all choices on the Configuration/Setup Utility main menu. You
can set, change, or delete both the administrator and power-on passwords, and
allow a power-on password to be changed by the user.
Attention: If an administrator password is set and then forgotten, it cannot be
overridden or removed. You must replace the system board.
38 IBM xSeries 350 Type 8682: Hardware Maintenance Manual