Top Cover; Removing The Top Cover - NEC EXPRESS5800/120Rc-2 Service Manual

Top Cover

To install options into the system board of your server or to install a 5.25"
removable media device, you must remove the top cover.
For proper cooling and airflow, do not operate the system
with the top cover removed. Always replace the cover before
powering on the system.
If you are removing the top cover after the system is set up,
you must first power off the system and all external devices
and then Unplug the system power cord

Removing the Top Cover

To remove the top cover:
1. Perform all steps in "Removing the Front Bezel" described in the previous
procedure.
2. Loosen the captive thumbscrew securing the top cover to the chassis. See
Figure 4-3.
3. Slide the top cover towards the rear of the server chassis until its tab
fasteners unlock.
4. Lift the top cover up and away from the chassis.
4-6 Disassembly and Reassembly
! CAUTION
!
WARNING
Figure 4-3. Removing the Top Cover