Diagnostic Tools and Setup Utilities 99
System board switches and jumpers
CMOS clear jumper
The system board has a CMOS clear jumper (JP12, item 46 in Figure 5-2) that allows the system
configuration data in non- volatile memory to be cleared. To clear t he CMOS refer to the pr oce dure
described in Chapter 4 in the section “Clearing CM OS.”
CMOS reset password jumper
The system board has a CMOS password clear jumper (JP15) that allows the CMOS password data in
non-volatile memory to be cleared.
BMC recovery jumper
The system board has a BMC recovery jumper (JP8) that allows the BMC data in the memory to be
recovered.
BMC reset Password jumper
The system board has a BMC password clear jumper (JP10) that allows the BMC password data in
non-volatile memory to be cleared.
NMI button
The system board has a Non-Maskable Interrupt (NMI) button (SW3, item 36 in Figure 5- 2) that
provides a diagn ost ic function if the system b ecomes locked up or “hung.” For more information refer
to the Chapter 4 section “NMI button.”
CAUTION: The NMI button is for diagn ostic purposes only. Pressing this button while the server is in
normal operation will cause the system to halt immediately.
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