HP ProLiant DL360 Generation 4

68 HP ProLiant DL360 Generation 4 Server Maintenance and Service Guide
System Maintenance Switch
Position Default Function
S1 Off Off = iLO security is enabled.
On = iLO security is disabled.
S2 Off Off = System configuration can be
changed.
On = System configuration is
locked.
S3 Off Reserved
S4 Off Reserved
S5 Off Off = Power-on password is
enabled.
On = Power-on password is
disabled.
S6 Off Off = No function
On = ROM treats the system
configuration as invalid.
S7, S8 Off, Off Debug LEDs
NMI Switch
The NMI switch allows administrators to perform a memory dump before
performing a hard reset. Crash dump analysis is an essential part of eliminating
reliability problems, such as hangs or crashes in operating systems, device
drivers, and applications. Many crashes freeze a system, requiring you to do a
hard reset. Resetting the system erases any information that would support root
cause analysis.
Systems running Microsoft® Windows® operating systems experience a blue
screen trap when the operating system crashes. When this happens, Microsoft®
recommends that system administrators perform an NMI event by pressing a
dump switch. The NMI event enables a hung system to become responsive again.