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Install a Fan Module
120
Sun Server X4-4 Service Manual • October 2015
b.
Slide the server into the rack until it locks into place.
c.
If necessary, close the CMA.
8.
If you performed a cold-service procedure, power on the server.
Fan Module Reference
The six fan modules are located at the front of the chassis and provide cooling for the three
motherboard cooling zones (for more information, see
“Cooling Subsystem” on page 26
fans are hot-serviceable and accessible by partially extending the server from the rack. You do
not have to remove the server cover to service the fan modules.
Caution -
Server shutdown or component damage due to over-temperature condition. Fan
modules provide system cooling. If a fan module fails, replace it as soon as possible. When
you remove one of the fans in the back row, you must replace it within 30 seconds to prevent
overheating of the server.
The functions of the fan module status indicators is described below.
Fan Module Indicators
The following indicators are lit when a fan module fault is detected:
■
Front and back Service Action Required indicators. See
“Server Back Panel Features” on page 20
indicators.
■
Fan module Service Action Required indicator on the faulty fan module.
■
Over Temperature Warning LED. This indicator might also light if a fan fault causes an
unacceptable increase in system operating temperature.
Each fan module contains indicators that are visible from the top of the server.
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