HP ProLiant DL120 G6 Server - Manual (Page 10)

Component identification 10
Item Description
18 Internal USB connector for tape device
19 BMC recovery jumper
20 BMC password reset jumper
21 Expansion slot 1 (for riser board)
22 Expansion slot 2 (for riser board)
23 System maintenance switch
24 Internal USB connector for STD USB
25
TPM connector
26 System battery
27 4-pin ATX processor power connector
28
Processor
System maintenance switch
Position Default Function
S1 Off Off = Normal
On = Clears the BIOS CMOS and rests
the administrator password.
S2 Off Off = Normal BIOS boot block
On = Recovery BIOS boot block
S3 Off Off = Disables the RAID key.
On = Enables the RAID key.
S4 Off Reserved
S5 Off Reserved
S6
Off Reserved
S7 Off Reserved
S8 Off Reserved
NMI functionality
An NMI crash dump enables administrators to create crash dump files when a system is hung and is 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
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 do any of
the following:
• Short the NMI jumper pins
• Press the NMI switch