User guide

Component identification 14
DIMM slot locations
DIMM slots are numbered sequentially (1 through 6) for each processor. The supported AMP modes use the
letter assignments for population guidelines.
System maintenance switch
Switch Default Function
1
Off Off = No function
On = iLO 4 security is disabled
2
Off Off = System configuration can be
changed
On = System configuration is locked
5
Off Off = Power-on password is enabled
On = Power-on password is disabled
6
Off Off = No function
On = ROM reads configuration as
invalid
3, 4, 7, 8, 9,
10, 11, 12
— 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.
NMI functionality
An NMI crash dump creates a crash dump log before resetting a system which is not responding.
Crash dump log analysis is an essential part of diagnosing reliability problems, such as failures of operating
systems, device drivers, and applications. Many crashes freeze a system, and the only available action for