Table of Contents
Advertisement
System maintenance switch descriptions
Position
Default
1
S1
Off
S2
Off
S3
Off
S4
Off
1
S5
Off
1
2
3
S6
,
,
Off
S7
Off
S8
—
S9
—
S10
—
S11
—
S12
—
1
To access the redundant ROM, set S1, S5, and S6 to On.
2
When the system maintenance switch position 6 is set to the On position, the system is prepared to restore all
configuration settings to their manufacturing defaults.
3
When the system maintenance switch position 6 is set to the On position and Secure Boot is enabled, some
configurations cannot be restored. For more information, see
NMI functionality
An NMI crash dump enables administrators to create crash dump files when a system is hung and not
responding to traditional debugging methods.
An analysis of the crash dump log is an essential part of diagnosing reliability problems, such as hanging
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.
To force the OS to invoke the NMI handler and generate a crash dump log, the administrator can use the iLO
Virtual NMI feature.
DIMM slot locations
DIMM slots are numbered sequentially (1 through 12) for each processor. The supported AMP modes use the
letter assignments for population guidelines.
Function
Off = iLO security is enabled.
On = iLO security is disabled.
Off = System configuration can be changed.
On = System configuration is locked.
Reserved
Reserved
Off = Power-on password is enabled.
On = Power-on password is disabled.
Off = No function
On = Restore default manufacturing settings
Off = Set default boot mode to UEFI.
On = Set default boot mode to legacy.
Reserved
Reserved
Reserved
Reserved
Reserved
Secure Boot
on page 123.
System maintenance switch descriptions
17
Advertisement
Table of Contents
