HP ProLiant DL160 Gen8 - System Maintenance Switch; NMI Header; Drive Numbering

Component identification 76
System maintenance switch
Position Default Function
S1
Off Off = iLO security is enabled
On = iLO 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 = Reset configuration
S7
— Reserved
S8
— Reserved
S9
— Reserved
S10
— Reserved
S11
—
Reserved
S12
— 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 header
The NMI header enables administrators to perform a memory dump before performing a hard reset. Crash
dump analysis is an essential part of eliminating potential reliability issues, such as hangs or crashes in
operating systems, device drivers, and applications. Many crashes can freeze a system, requiring you to
perform a hard reset. Resetting the system erases any information that supports root cause analysis.
Systems running Microsoft® Windows® experience a blue-screen trap when the OS crashes. When this
happens, Microsoft® recommends that system administrators perform an NMI event by temporarily shorting
the NMI header with a jumper. The NMI event enables a hung system to become responsive again.
For additional information, see the HP website
(http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00797875/c00797875.pdf).
Drive numbering
• LFF configuration