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Cisco UCS C22 Server Installation and Service Guide
OL-26646-01
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Replacing Fan Modules
The five fan modules in the server are numbered as follows when you are facing the front of the server
(also see Figure 3-11). The fan numbering as designated by the server’s Cisco IMC software is also
listed. For example, FAN 1 is designated as SYS_FAN2 in the software.
Figure 3-10 Fan Module Numbering
To replace or install a fan module, follow these steps:
Caution The fans in the Cisco UCS C22 server are not hot-swappable.
Step 1 Remove a fan module that you are replacing (see Figure 3-11):
a. Power off the server as described in the “Shutting Down and Powering Off the Server” section on
page 3-6.
b. 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.
Caution If you cannot safely view and access the component, remove the server from the rack.
c. Remove the top cover as described in “Removing and Replacing the Server Top Cover” section on
page 3-7.
d. Remove the internal air baffle from the server to provide access to the fan-cable connectors on the
motherboard.
e. Disconnect the fan module’s cable from its motherboard connector.
f. Grasp the fan module and lift straight up to free it from the chassis. Carefully free the fan module
cable from the fan-tray clips to avoid damaging it.
Step 2 Install a new fan module:
a. Set the new fan module in place, aligning its four rubber pegs with the slots in the fan tray. See
Figure 3-11.
b. Connect the fan’s cable to the motherboard connector. Reroute the cable into the cable clips on the
fan tray.
c. Replace the air baffle and the top cover.
d. Replace the server in the rack.
FAN 1
SYS_FAN2
FAN 2
SYS_FAN3
FAN 3
SYS_FAN4
FAN 4
SYS_FAN5
FAN 5
SYS_FAN6