ProLiant DL140 Generation 2 Server Maintenance and Service Guide

Connectors, switches, and LEDs 60
System switches
System configuration switch
Figure 65 System configuration switch
Table 7 System configuration switch settings
Switch Status Function
SW1-1 On
Off
Boot block enabled
Normal boot
SW1-2 On
Off
Clear CMOS settings and restore system
defaults
Normal CMOS settings
SW1-3 — Reserved
SW1-4 — Reserved
Note: The status indicated in bold text is the default setting.
NMI switch
If the system crashes or stops operating properly, you can use the NMI switch (SW2) to mechanically force the
server to issue a non-maskable interrupt. This will perform a memory dump—writing the contents of the server's
CPU registers and RAM to a network server or to diskettes. This memory dump can later be analyzed to
determine the cause of the problem.
The NMI switch is recessed beneath a small button on the system board. By default, the NMI switch is always
enabled.
Figure 66 NMI switch
NOTE: Use of the NMI switch is not supported in all NOS. As of the present, NMI implementation is not
available for systems running on Solaris and Linux operating systems.