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Cisco UCS C240 Server Installation and Service Guide
OL-25761-01
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
CPU Replacement Procedure
Caution
CPUs and their motherboard sockets are fragile and must be handled with care to avoid damaging pins
during installation. The CPUs must be installed with heatsinks and their thermal pads to ensure proper
cooling. Failure to install a CPU correctly might result in damage to the server.
Caution
The Pick-and-Place tools used in this procedure are required to prevent damage to the contact pins
between the motherboard and the CPU. Do not attempt this procedure without the required tools, which
are included with each CPU option kit. If you do not have the tool, you can order a spare: Cisco PID
UCS-CPU-EP-PNP=
for 10-, 8-, 6-, 4-, or 2-core CPUs (green);
UCS-CPU-EP2-PNP=
for v2 12-core
CPUs (purple).
To install or replace a CPU heatsink and CPU, follow these steps:
Step 1
Remove the CPU and heatsink that you are replacing:
a.
Power off the server as described in the
“Shutting Down and Powering Off the Server” section on
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
d.
Use a Number 2 Phillips-head screwdriver to loosen the four captive screws that secure the heatsink
and then lift it off of the CPU.
Note
Alternate loosening each screw evenly to avoid damaging the heatsink or CPU.
e.
Unclip the first CPU retaining latch labeled with the
icon, then unclip the second retaining
latch labeled with the
icon. See
.
f.
Open the hinged CPU cover plate.
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