Cooling Fan Unit; Removing The Fan Cover - NEC EXPRESS5800/120Lf User Manual

Cooling Fan Unit

The cooling fan unit houses two fans for cooling the boards and devices inside
your server. The cooling fan unit is composed of a fan module (A) and a fan
cover (B). See Figure 4-3.
The cooling fan unit must be removed when plugging or unplugging power or
signal cable connectors at the rear of the hard disk drive bays.
The cooling fan cover must be removed for the installation or removal of long
PCI boards.

Removing the Fan Cover

To remove the fan cover, perform the following procedures:
1. Prepare your system for upgrade. See Preparing Your System for Upgrade
earlier in this chapter.
2. Remove the left-hand side access panel of the system chassis. See Removing
the Side Access Panel earlier in this chapter.
For proper cooling and airflow, do not operate the system
with the side access panel removed. Always replace the
panel before powering on the system.
3. While holding the fan module securely, grasp and pull the fan cover out to
free it from the module and then remove it from the system chassis.
See Figure 4-4.
4-6 Upgrading Your System
A – Fan module
B – Fan cover
Figure 4-3. Cooling Fan Unit
! CAUTION
A
B