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Cisco UCS C420 Server Installation and Service Guide
OL-27640-01
Chapter3 Maintainin g the Server
Installing or Replacing Server Components
Step2 Install a new I/O riser:
a. Align the new I/O riser with its designated socket on the motherboard. See Figure3-22.
Note You must install the I/O riser in its designated motherboard socket.
b. Push down evenly on both ends of the I/O riser until it is fully seated in its motherboard socket.
c. Ensure that the I/O riser rear panel tab sits flat against the chassis rear panel opening.
d. Install the single screw that secures the I/O riser to the chassis.
e. Replace the top cover.
f. Replace the server in the rack, replace cables, and then power on the server by pressing the Power
button.
Figure3-22 Removing and Replacing an I/O Riser
1I/O riser in designated motherboard socket 2I/O riser securing screw
FAN 1
FAN 2
FAN 3
FAN 4
FAN 5
FAN 6
DIMM L
DIMM M
DIMM G
DIMM H
DIMM K
DIMM J
DIMM F
DIMM E
DIMM R DIMM C
DIMM S DIMM D
PCle 7
PCle 6
PCle 5
PCle 4
PCle 3
PCle 2
PCle 2
DIMM P DIMM B
DIMM N DIMM A
CPU 3 CPU 2
CPU 4 CPU 1
2
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