IBM x3550 Problem Determination And Service Manual page 31

Table 2. Switch and jumper settings
Component
NMI (nonmaskable
interrupt) switch (SW1)
Power-on password
switch (SW2-1)
BMC update switch
(SW2-2)
BMC disable switch
(SW2-3)
Force power-on switch
(SW2-8)
Boot block recovery
jumper (J14)
Note: The server is shipped with a clear plastic shield on the face of switch SW2.
Remove and discard this shield if you need to change the switch settings.
Default
value Settings
Off NMI button on rear of server pressed: NMI issued
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 Configuration/Setup Utility program 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 password is
overridden.
Changing the position of this switch does not affect
the administrator password check if an
administrator password is set.
See the User's Guide on the IBM System x
Documentation CD for additional information about
the power-on password.
Off Force BMC update (trained service technician
only). When toggled to On, this switch causes an
update of BMC microcode from the on-board ROM.
Off Setting this to On might be necessary when a
service processor adapter other than the optional
Remote Supervisor Adapter II SlimLine is installed.
Off Power-on override. When toggled to On, this switch
forces the server power on, overriding the
power-on button.
v Pins 1 and 2: Normal (default)
v Pins 2 and 3: Boot from backup boot page.
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Chapter 1. Introduction