Lenovo x3650 M4 BD 5466, Инструкция по установке и обслуживанию

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Table 5. System board SW3 switch block definition
Switch number Default position Description
1
Off
Reserved.
2 Off Reserved.
3 Off Reserved.
4 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 149 for additional information about
passwords.
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 “Safety” on page v, “Installation guidelines”
on page 34, “Handling static-sensitive devices” on page 36, and “Turning off the server” on page 23.
2. Any system-board switch or jumper block that is not shown in the illustrations in this document are
reserved.
The following table describes the functions of the button on the system board.
Table 6. Button on the server
Button name Function
Force NMI button 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).
System-board LEDs
The following illustration shows the light-emitting diodes (LEDs) on the system board.
Chapter 2
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Installing optional devices
31