Cisco UCS C220 M4 Maintaining The Server page 24

Installing or Replacing Server Components
Replacing Fan Modules
The six fan modules in the server are numbered as follows when you are facing the front of the server
(also see
Figure 3-12
FAN 6
Tip Each fan module has a fault LED next to the fan connector on the motherboard that lights amber if the
fan module fails. Standby power is required to operate these LEDs.
You do not have to shut down or power off the server to replace fan modules because they are hot-
Caution
swappable. However, to maintain proper cooling, do not operate the server for more than one minute with
any fan module removed.
Remove a fan module that you are replacing (see
Step 1
a.
Caution If you cannot safely view and access the component, remove the server from the rack.
b.
c.
Step 2 Install a new fan module:
a.
b.
c.
d.
Cisco UCS C220 M4 Server Installation and Service Guide
3-24
Figure 3-13).
Fan Module Numbering
FAN 5
Slide the server out the front of the rack far enough so that you can remove the top cover. You might
have to detach cables from the rear panel to provide clearance.
Remove the top cover as described in
Grasp the fan module at its front and on the green connector. Lift straight up to disengage its
connector from the motherboard and free it from the two alignment pegs.
Set the new fan module in place, aligning its two openings with the two alignment pegs on the
motherboard. See Figure 3-13.
Press down gently on the fan module connector to fully engage it with the connector on the
motherboard.
Replace the top cover.
Replace the server in the rack.
FAN 4 FAN 3
Figure 3-13):
Removing and Replacing the Server Top Cover, page
Chapter 3 Maintaining the Server
FAN 2 FAN 1
OL-32473-01
3-9.