88 HP ProLiant DL380 Generation 3 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 Off = Booting from diskette is
controlled by RBSU.
On = Booting from diskette is enabled
and RBSU is overridden.
S5 Off Off = Power-on password is enabled.
On = Power-on password is disabled.
S6 Off Off = No function
On = Clear NVRAM.*
* If you clear NVRAM, you must re-enter the server serial number
through RBSU ("Re-Entering the Server Serial Number" on page
63
).
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.
HP CONFIDENTIAL
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