Processor and heat sink replacement
Follow the instruction in this section to replace an assembled processor and heat sink, known as a
processor-heat-sink module (PHM), a processor, or a heat sink.
Attention: Before you begin replacing a processor, make sure that you have an alcohol cleaning pad (part
number 00MP352) and thermal grease.
Important: The processor in your server can throttle in response to thermal conditions, temporarily lowering
its speed to reduce heat output. In instances where a few processor cores are throttled for an extremely
short time period (100 ms or less), the only indication might be an entry in the operating system event log
with no corresponding entry in the system XCC event log. If this situation occurs, the event can be ignored
and processor replacement is not required.
When the server has a Liquid Assisted Cooling Module (LACM) installed, you must apply for a LACM module
handle (LACM heat sink bracket) first if you need to install or remove the system board assembly or
processor. However, while replacing the old LACM with a new one, you do not need to apply for a module
handle (LACM heat sink bracket) as the new LACM package contains it.
Note: This section is for processor and heat sink replacement. For the replacement of the Liquid Assisted
Cooling Module (LACM), refer to
“Lenovo Neptune(TM) liquid assisted cooling module replacement (trained
technicians only)” on page 140
.
Remove a processor and heat sink
This task has instructions for removing an assembled processor and heat sink, known as a processor-heat-
sink module (PHM). This task requires a Torx T30 driver. This procedure must be executed by a trained
technician.
About this task
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
Attention:
• Read
“Installation Guidelines” on page 51 and “Safety inspection checklist” on page 52 to ensure that you
work safely.
• Power off the server and peripheral devices and disconnect the power cords and all external cables. See
“Power off the server” on page 68.
• Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-
sensitive components in their static-protective packages until installation, and handling these devices with
an electrostatic-discharge wrist strap or other grounding systems.
• If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the top cover,
or remove the server from the rack. See
“Remove the server from the rack” on page 69.
176
ThinkSystem SR630 V3 User Guide
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