HP ProLiant DL380 Generation 4, User Manual

Page: 13 / 122

Component identification 13
Position Default Function
S5 Off Off = No function
On = Clears power-on password and
administrator password.
S6 Off Off = No function
On = Clear NVRAM.
When the system maintenance switch position 6 is set to the On position, the system is prepared to erase
all system configuration settings from both CMOS and NVRAM.
CAUTION: Clearing CMOS and/or NVRAM deletes configuration information. Be sure to properly
configure the server or data loss could occur.
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.
Chassis ID switch
The chassis ID switch on the system board is reserved for use by authorized technicians only. Do not
modify the switch setting.
DIMM slots
DIMM slots are numbered sequentially (1 through 6) and the paired banks are identified by the letters A,
B, and C.