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If a power-on password is set, you can enable the Unattended Start mode, in which
the keyboard and mouse remain locked but the operating system can start. You can
unlock the keyboard and mouse by typing the power-on password.
If you forget the power-on password, you can regain access to the server in any of
the following ways:
v If an administrator password is set, type the administrator password at the
password prompt (see “Administrator password”). Start the Configuration/Setup
Utility program and reset the power-on password.
v Remove the battery from the server and then reinstall it. For instructions for
removing the battery, see the Problem Determination and Service Guide on the
IBM System x Documentation CD.
v Change the position of the clear CMOS jumper on the system board to bypass
the power-on password check. See “Resetting passwords” for additional
information.
Attention: Before you change any switch settings or move any jumpers, turn off
the server; then, disconnect all power cords and external cables. See the safety
information that begins on page v. Do not change settings or move jumpers on any
system-board switch or jumper block that is not shown in this document.
Administrator password
If an administrator password is set, you must type the administrator password for
access to the full Configuration/Setup Utility menu. You can use any combination of
up to seven characters (A - Z, a - z, and 0 - 9) for the password.
If you forget the administrator password, you can reset it after you change the
position of the clear CMOS jumper. See “Resetting passwords” for additional
information.
Resetting passwords
If you forget the power-on password or administrator password, you can move the
clear-CMOS jumper block on the system board to pins 2 and 3, to clear CMOS
memory and bypass the power-on or administrator password check. The jumper
location is shown in the following illustration.
Chapter 3. Configuring the server 49