HP Switch Fan Assemblies - Manual (Page 4)

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Fan tray overview
Back-to-front airflow fan tray
Introduction
The HP FlexFabric 7904 back (power side) to front (port side) airflow
Fan Tray (JG839A) provides powerful cooling and heat dissipation for
the switch. It blows cool air into the switch from the power side to the
port side. The fan tray has five fans and features small size, fast heat
dissipation, and hot swapping. It can automatically adjust the fan speed
based on the switch temperature.
Figure 1 Fan tray view
(1) Captive screw
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