Nmi switch, System board leds – HP AMS DL320 User Manual

Page 11

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Server component identification 11

Position Default

Function

S5

Off

Off = Power-on password enabled

On = Power-on password disabled *

S6

Off

Off = Normal operation

On = BIOS will clear CMOS and
NVRAM *

S7 Off

Reserved

S8 Off

Reserved

* "On" activates the function.

NMI switch

The NMI switch allows administrators to perform a memory dump before performing a hard reset. Crash
dump analysis is an essential part of eliminating reliability problems, such as hangs or crashes in
operating systems, device drivers, and applications. Many crashes freeze a system, requiring you to do a
hard reset. Resetting the system erases any information that would support root cause analysis.

Systems running Microsoft® Windows® operating systems experience a blue screen trap when the
operating system crashes. When this happens, Microsoft® recommends that system administrators
perform an NMI event by pressing a dump switch. The NMI event enables a hung system to become
responsive again.

System board LEDs

Item LED

Description

Status

1

Power supply signal

Amber = Power supply signal cable is not
connected.

Off = Power supply signal cable is connected.

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