Component identification 75
Item Description
25
System fan 2 connector
26
Optional redundant system fan 3 connector
System fan 1 connector
28
FBDIMM slots
NMI jumper
The NMI jumper 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.
System maintenance switch
Position Default Function
S1
iLO 2
security
Off = iLO 2 security is enabled
On = iLO 2 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 = Clear NVRAM
S7
— Reserved
S8
— Reserved
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.
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