Table of Contents
Advertisement
A+ Server 4020A-8R User's Manual
6-3
System Fans
Four 8-cm chassis cooling fans (located in the center of the chassis) provide cooling
airfl 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). The power supply module also has a cooling fan.
Fan Failure
Under normal operation, all four chassis fans, both exhaust fans and the power
supply fan run continuously. The four chassis fans and the two exhaust fans are
hot-swappable and can be replaced without powering down the system.
Replacing Chassis Cooling Fans
1. Identifying the failed fan
To locate and replace a failed chassis fan, begin by removing the top/left chassis
cover (see Chapter 2 for details on removing the cover).
2. Removing a hot-plug fan housing
Depress the locking tab on a chassis cooling fan and pull the unit straight out by
the handle (see Figure 6-3). The fan wiring for these fans has been designed to
detach automatically.
3. Installing a new system fan
Replace the failed fan with an identical one (p/n FAN-0072). Install it in (and then
reassemble) the fan housing, then plug the housing back into its slot; it should click
into place when fully inserted. Check that the fan is working then replace the top/left
side chassis panel.
Removing the air shroud
Under most circumstances you will not need to remove the air shroud to perform
any service on the system. However, if you wish to temporarily remove it (the air
shroud sould always be in place when the system is operating), please follow this
procedure.
Begin by depressing the tabs at the front and rear of the shroud to unlock it, then
lift it up and out of the chassis (see Figure 6-4). To reinstall, simply position the air
shroud in its proper place and push it in until you hear it click.
6-4
Advertisement
Table of Contents
