HP ProLiant SL4545 HP ProLiant SL4545 G7 Server Node User Guide - Page 9
NMI jumper, Position, Default, Function, Diagnostic LEDs
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Position S1 S2 S3 S4 S5 S6 Default Off Off Off Off Off Off Function Off-iLO security is enabled. On-iLO security is disabled. Off-System configuration can be changed. On-System configuration is locked. Reserved Reserved Off-Power-on password enabled. On-Power-on password disabled. Off-No function On-ROM reads system configuration as invalid. 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. There is an RBSU setting that erases default settings and fixed disk partitions, which causes a loss of data. Diagnostic LEDs Position S7 Off Off On Position S8 Off On Off Function Diagnostic LEDs Port 85 Port 84 iLO NMI jumper The NMI jumper 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 OSs, device drivers, and applications. Many crashes can 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® 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. Component identification 9