Cisco Systems 9266CV-8i, UCSSP6C220E, UCUCSEZC220M3S Replacing CPUs and Heatsinks, 3-23, Step

Chapter 3 Maintaining the Server

Installing or Replacing Server Components

Replacing CPUs and Heatsinks

This server has two CPU sockets. Each CPU supports four DIMM channels (eight DIMM slots). See Figure 3-12.

•The server can operate with one CPU or two identical CPUs installed.

•The minimum configuration is that the server must have at least CPU1 installed. Install CPU1 first, then CPU2.

Note The following restrictions apply when using a single-CPU configuration: the maximum number of DIMMs is eight, the internal mezzanine card slot is unavailable, and PCIe slot 2 is unavailable (see Figure 3-20).

Caution

Caution

Step 1

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.

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).

To install or replace a CPU heatsink and CPU, follow these steps:

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 page 3-7.

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.

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 3-8.

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 labelled with the		icon, then unclip the second retaining
latch labelled with the	icon. See Figure 3-13.

f.Open the hinged CPU cover plate.

	Cisco UCS C220 Server Installation and Service Guide
OL-25760-01		3-23