System-Board Leds - Lenovo System x3250 M5 Installation And Service Manual

Table 4. System board SW1 switch block definition
Switch Default
number position
1
Off
2 Off
3
Off
4 Off
The following table describes the functions of the button on the system board.
Table 5. Button definition
Button name
NMI button

System-board LEDs

The following illustration shows the light-emitting diodes (LEDs) on the system board.
Description
Asserts TPM physical presence. When this switch is toggled on, the TPM physical
presence is asserted.
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 93 for additional information about passwords.
Default off.
Asserts IMM2 reset. When this switch is toggled on, the IMM2 reset is asserted.
Definition
This button is on the rear of the server. Press this button to force a nonmaskable interrupt
to the microprocessor. You might have to use a pen or the end of a straightened paper clip
to press the button. You can also use it to force a blue-screen memory dump (use this
button only when you are directed to do so by Lenovo Support).
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Chapter 2 Installing optional devices
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