10-1
CHAPTER
10
Fan Modules Replacement
The fan units move air currents into and out of the server. This chapter describes
how to remove and install the fan units. The information is organized into the
following topic:
■ Section 10.1, “Fan Module Replacement” on page 10-1
10.1 Fan Module Replacement
The 172-mm fan module is the primary cooling system. The 172-mm fan module is in
both midrange servers. The 60-mm fan module is for additional cooling in the
SPARC Enterprise M4000 server. The fan modules are hot, active, or cold replacement
components. When using active replacement, only one fan module should be
replaced at a time to ensure redundancy. The fan backplanes are cold replacement
components.
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