Cisco UCS C460 Installation And Service Guide

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Cisco UCS C460 Server Installation and Service Guide
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Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Replacing CPUs and Heatsinks
This server can operate with 2-, 3-, or 4-CPU configurations. Each CPU supports two memory risers
(four memory buffers) connected by serial memory interface (SMI). Each memory buffer has two DDR3
memory bus interfaces.
The qualified and supported part numbers for this component are subject to change over time. For the most
up-to-date list of replaceable components, see the following URL and then scroll to Technical Specifications:
http://www.cisco.com/en/US/products/ps10493/products_data_sheets_list.html
Note The minimum CPU configuration is that CPU1 and CPU3 must be installed. See Figure 3-13, which has
a view shown facing the front of the server. Only CPU1 and CPU3 are connected to the internal PCIe
hub. With CPU1 and CPU3 installed, any other combination operates.
Figure 3-13 CPUs and Memory Risers
This section contains the following topics:
• Additional CPU-Related Parts To Order With RMA Replacement Motherboards, page 3-22
• CPU Replacement Procedure, page 3-22
Additional CPU-Related Parts To Order With RMA Replacement Motherboards
When a return material authorization (RMA) of the motherboard or CPU is done on a Cisco UCS
C-series server, there are additional parts that might not be included with the CPU or motherboard spare
bill of materials (BOM). The TAC engineer might need to add the additional parts to the RMA to help
ensure a successful replacement.
• Scenario 1—You are re-using the existing heatsinks:
– Heat sink cleaning kit (UCSX-HSCK=)
– Thermal interface pad for C460 (RC-460-TIM=)
• Scenario 2—You are replacing the existing heatsinks:
– Heat sink (RC460-BHTS1=)
– Heat sink cleaning kit (UCSX-HSCK=)
A CPU heatsink cleaning kit is good for up to four CPU and heatsink cleanings. The cleaning kit contains
two bottles of solution, one to clean the CPU and heatsink of old thermal interface material and the other
to prepare the surface of the heatsink.
New heatsink spares have preinstalled thermal interface material covered by a small sheet of plastic. It
is important to clean the old thermal interface material off of the CPU prior to installing the heatsinks.
Therefore, when ordering new heatsinks it is still necessary to order the heatsink cleaning kit at a
minimum.
CPU Replacement Procedure
To install or replace a CPU heatsink and CPU, follow these steps:
CPU 4 CPU 3 CPU 2 CPU 1
MEM 8 MEM 7 MEM 6 MEM 5 MEM 4 MEM 3 MEM 2 MEM 1

Cisco UCS C460 Specifications

General

Brand	Cisco
Model	UCS C460
Category	Server
Language	English