6-4
S
uper
W
orkstation 7046A-HR+/7046A-HR+F User's Manual
6-3 System
Fans
Three 8-cm chassis cooling fans (located in the center of the chassis) provide cool-
ing air
fl
ow while two 8-cm exhaust fans expel hot air from the chassis. The chassis
is also
fi
tted with an air shroud to concentrate the
fl
ow of cooling air over the areas
of highest generated heat. The fans should all be connected to headers on the
serverboard (see Chapter 5). Each power supply module also has a cooling fan.
Fan Failure
Under normal operation, all three chassis fans, both exhaust fans and the power
supply fans run continuously. The chassis fans and the exhaust fans are hot-swap-
pable and can be replaced without powering down the system.
Replacing Chassis Cooling Fans
1. First, remove the top/left chassis cover (see Chapter 2 for details on removing
the cover) to locate the fan that has stopped working.
2. Depress the locking tab on the failed fan: on a chassis fan, push the tab on
the side of the housing inward, on the exhaust fan push down on the colored
tab. With the tab depressed, pull the unit straight out (see Figure 6-3). The
wiring for these fans has been designed to detach automatically.
3. Replace the failed fan with an identical one. Install it in the same position
and orientation as the one you removed; it should click into place when fully
inserted. Check that the fan is working then replace the top/left side chassis
panel.
Figure 6-3. Removing a Chassis Fan
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