System maintenance switch, Nmi functionality – HP DL380 G7 User Manual

Page 15

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Component identification 15

Item

Description

18

SAS connector A

19

SAS connector B

20

Cache module connector

21

Fan connector 1

22

Fan connector 2

23

Fan connector 3

24

Fan connector 4

25

Fan connector 5

26

Fan connector 6

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 = Clear NVRAM

S7

Reserved

S8

Reserved

S9

Reserved

S10

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 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

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