Component identification 86
Item Description
24
Fan 4 connector
25
Processor 1 socket
Fan 5 connector
27
Processor 2 socket
28
Fan 6 connector
*Connect the USB tape power connector to the secondary SAS power connector.
System board switches
System maintenance switch
Position Default Function
S1
Off Off = iLO 3 security is enabled.
On = iLO 3 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 reads system configuration as invalid.
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. There is an
RBSU setting that erases default settings and fixed disk partitions, which causes a loss of data.
Diagnostic LEDs
Position Position Function
S7
S8 Diagnostic LEDs
Off Port 85
Off
On Port 84
On
Off iLO 3
NMI functionality
An NMI crash dump enables administrators to create crash dump files when a system is hung and not
responding to traditional debug mechanisms.
Crash dump log analysis is an essential part of diagnosing reliability problems, such as hangs in operating
systems, device drivers, and applications. Many crashes freeze a system, and the only available action for
administrators is to cycle the system power. Resetting the system erases any information that could support
problem analysis, but the NMI feature preserves that information by performing a memory dump before a
hard reset.
