IBM 3550 Type 7978, Руководство пользователя

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System board switch
block (SW2)
8 7 6 5 4 3 2 1
ON
1
2
3
Boot block recovery
jumper (J14)
Attention: Before changing any switch settings or moving 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 blocks that are not shown in this document.
While the server is turned off, move switch 1 of the switch block (SW2) to the On
position to enable the power-on password override. You can then start the
Configuration/Setup Utility program and reset the power-on password. You do not
have to return the switch to the previous position.
The power-on password override jumper does not affect the administrator
password.
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.
Attention: If you set an administrator password and then forget it, there is no way
to change, override, or remove it. You must replace the system board.
Using the Boot Menu program
The Boot Menu program is a built-in, menu-driven configuration utility program that
you can use to temporarily redefine the first startup device without changing
settings in the Configuration/Setup utility program.
To use the Boot Menu program, complete the following steps:
1. Turn off the server.
2. Restart the server.
Chapter 3. Configuring the server
55