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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
c. Remove the top cover as described in Removing and Replacing the Server Top Cover, page 3-9.
d. Use a Number 2 Phillips-head screwdriver to loosen the two captive thumbscrews that secure the
PCIe riser assembly. See Figure 3-20 on page 3-36.
e. Lift straight up on both ends of the PCIe riser assembly to disengage its attached circuit board from
the socket on the motherboard.
Note Lift up on both ends of the PCIe riser evenly to avoid damaging its connector.
f. Pinch and lift up on the blue-plastic card-retaining clip that secures the card (or filler panel) into the
riser.
g. Pull evenly on both corners of the PCIe card to remove it from the socket on the PCIe riser.
Step 2 Install a PCIe card:
a. Align the new PCIe card with the empty socket on the PCIe riser assembly.
b. Push down evenly on both ends of the card until it is fully seated in the socket.
c. Ensure that the card’s rear-panel tab sits flat against the PCIe riser rear panel opening, and then close
the blue-plastic card-retaining clip to secure the card in the riser (see Figure 3-24).
d. Set the PCIe riser assembly back in place over the power supply bay.
e. Align the PCIe riser circuit board edge with the socket on the motherboard and then push straight
down on both ends of the PCIe riser assembly to fully engage the board with the socket.
f. Tighten the two captive thumbscrews that secure the PCIe riser assembly in place.
g. Replace the top cover.
h. Replace the server in the rack, replace cables, and then power on the server by pressing the Power
button.
Figure 3-24 PCIe Riser Assembly Side View
1 PCIe card socket on PCIe riser assembly 2 Card retaining clip
