Nmi switch, System board leds – WHP Wireless DL360 User Manual
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HP ProLiant DL360 Generation 4 Server Reference and Troubleshooting Guide
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
DIMM 4B failure
Amber = DIMM has failed.
Off = DIMM is operating normally.
2
DIMM 3B failure
Amber = DIMM has failed.
Off = DIMM is operating normally
 
 
 
