Cisco UCS C240 M5 Service Manual

Alternate tightening the heatsink nuts evenly so that the heatsink remains level while it is lowered. Tighten
the heatsink nuts in the order shown on the heatsink label: 1, 2, 3, 4. The captive nuts must be fully tightened
so that the leaf springs on the CPU socket lie flat.
Note
e) Replace the top cover to the server.
f) Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.
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, additional parts 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 reusing the existing heatsinks:
◦
Heat sink cleaning kit (UCSX-HSCK=)
◦
Thermal interface material (TIM) kit for M5 servers (UCS-CPU-TIM=)
• Scenario 2—You are replacing the existing heatsinks:
Use only the correct heatsink for your CPUs to ensure proper cooling. There are two
different heatsinks: UCSC-HS-C240M5= for CPUs 150 W and less;
UCSC-HS2-C240M5= for CPUs above 150 W.
Caution
◦
Heat sink: UCSC-HS-C240M5= for CPUs 150 W and less; UCSC-HS2-C240M5= for CPUs above
150 W
◦
Heat sink cleaning kit (UCSX-HSCK=)
• Scenario 3—You have a damaged CPU carrier
◦
CPU carrier (UCS-M5-CPU-CAR=)
A CPU heat sink cleaning kit is good for up to four CPU and heat sink cleanings. The cleaning kit contains
two bottles of solution, one to clean the CPU and heat sink of old TIM and the other to prepare the surface of
the heat sink.
New heat sink spares come with a pre-applied pad of TIM. It is important to clean any old TIM off of the
CPU surface prior to installing the heat sinks. Therefore, even when you are ordering new heat sinks, you
must order the heat sink cleaning kit.
Replacing a Mini-Storage Module
The mini-storage module plugs into a motherboard socket to provide additional internal storage. The module
is available in two different versions:
• SD card carrier—provides two SD card sockets.
Cisco UCS C240 M5 Server Installation and Service Guide
80
Maintaining the Server
Replacing a Mini-Storage Module

Cisco UCS C240 M5 Specifications

General

Form Factor	2U Rack
Storage Controllers	Cisco 12G SAS Modular RAID Controller
Management	Cisco Integrated Management Controller (CIMC)
Processor	Intel Xeon Scalable Processors
Memory	Up to 3TB DDR4
Drive Bays	Up to 12 x 3.5-inch drives