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Cisco UCS C420 Server Installation and Service Guide
OL-27640-01
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Replacing an I/O Riser
The I/O riser is a modular PCIe form-factor card that has a designated motherboard socket inside the
server (see
Figure 3-22
). The module provides the external VGA video and RS-232 serial connectors for
the rear panel of the server. See
Figure 3-21
.
The I/O riser also provides two internal slots for Cisco FlexFlash cards. For more information about
Cisco FlexFlash cards, see
Replacing a Cisco Flexible Flash Drive, page 3-39
.
Figure 3-21
I/O Riser, Including Cisco FlexFlash Slots
To install or replace an I/O riser, follow these steps:
Step 1
Remove the I/O riser that you are replacing (see
Figure 3-22
):
a.
Power off the server as described in
Shutting Down and Powering Off the Server, page 3-8
.
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, page 3-9
.
d.
Disconnect any external cables from the I/O riser ports.
e.
Use a Number 1 Phillips-head screwdriver to remove the single screw that secures the I/O riser
rear-panel tab to the chassis.
f.
Lift the I/O riser straight up from the motherboard connector.
Note
Lift up on both ends of the I/O riser evenly to avoid damaging its connector.
1
I/O riser rear panel tab
4
Internal Cisco FlexFlash card slots
2
RS-232 serial connector (9-pin)
5
Cisco FlexFlash card retainer
3
VGA video connector (15-pin)
SLO
T 2
SLO
T 1
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