IBM 79463AU, Installation And User Manual

Page: 59 / 142

The following table describes the functions of the SW3 switch block on the Pass 9
level system board.
Table 7. Pass 9 level system board SW3 switch block definition
Switch
number
Default position Description
1 Off Clear CMOS memory. When this
switch is toggled to On, it clears the
data in CMOS memory, which clears
the power-on password.
2 Off Reserved.
3 Off Reserved.
4 Off Reserved.
The following table describes the functions of the SW4 switch block on the Pass 9
level system board.
Table 8. Pass 9 level system board SW4 switch block definition
Switch
number
Default position Description
1 Off Power-on password override.
Changing the position of this switch
bypasses the power-on password
check the next time the server is
turned on and starts the Setup utility
so that you can change or delete the
power-on password. You do not have
to move the switch back to the
default position after the power-on
password in overridden.
Changing the position of this switch
does not affect the administrator
password check if an administrator
password is set.
See “Passwords” on page 94 for
additional information about
passwords.
2 Off When you toggle this switch On and
then Off, you force a power-on,
which overrides the power-on and
power-off button on the server and
they become nonfunctional.
3 Off (Trained service technician only)
Forced power permission. Changing
the position of this switch overrides
the IMM power-on checking process.
4 Off Reserved.
Important:
1. Before you change any switch settings or move any jumpers, turn off the server;
then, disconnect all power cords and external cables. Review the information in
Chapter 2. Installing optional devices
43