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Chapter 2 Powering On and Configuring BIOS Settings 2-33
2.7 Using the Reset and NMI Switches
Caution – Do not use the Reset and NMI switches unless you are instructed to do
so by authorized Service personnel.
The Reset switch (SW3 on the motherboard) sends a reset order to the CPUs,
resetting the main system, but not the service processor. The button for this switch
can be pushed by sticking a paper clip or similar object through the hole provided
on the rear of the chassis (see
FIGURE 2-5, which shows the locations on both the Sun
Fire X4100 and Sun Fire X4200 servers).
The Non-Maskable Interrupt (NMI) switch (SW2 on the motherboard) sends an NMI
order to the CPUs, which is used by Field Service for debugging activities at the
request of Service personnel. The button for this switch can be pushed by sticking a
paper clip or similar object through the hole provided on the rear of the chassis (see
FIGURE 2-5, which shows the locations on both the Sun Fire X4100 and Sun Fire X4200
servers).
FIGURE 2-5 Sun Fire X4100 and Sun Fire X4200 Servers Back Panels
NMI switch (SW2)
Reset switch (SW3)
NMI switch (SW2) Reset switch (SW3)