Install A Processor-Heat-Sink Module - Lenovo ThinkSystem SR950 Setup Manual

Install a processor-heat-sink module

Processors are in the system boards that are accessed from the front of the server. The processor and heat
sink are removed together as part of a processor-heat-sink-module (PHM) assembly. PHM installation
requires a Torx T30 driver.
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CAUTION:
The power control button on the device and the power switch on the power supply do not turn off the
electrical current that is 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.
Note: If you are installing multiple options relating to the system board, the PHM installation should be
performed first.
CAUTION:
Make sure that all server power cords are disconnected from their power sources before performing
this procedure.
Attention:
• Each processor socket must always contain a cover or a PHM. When removing or installing a PHM,
protect empty processor sockets with a cover.
• Do not touch the processor socket or processor contacts. Processor-socket contacts are very fragile and
easily damaged. Contaminants on the processor contacts, such as oil from your skin, can cause
connection failures.
• Remove and install only one PHM at a time. If the system board supports multiple processors, install the
PHMs starting with the first processor socket.
• Do not allow the thermal grease on the processor or heat sink to come in contact with anything. Contact
with any surface can compromise the thermal grease, rendering it ineffective. Thermal grease can damage
components, such as electrical connectors in the processor socket. Do not remove the grease cover from
a heat sink until you are instructed to do so.
Notes:
• PHMs are keyed for the socket where they can be installed and for their orientation in the socket.
• See http://www.lenovo.com/us/en/serverproven/
processors on the system board must have the same speed, number of cores, and frequency.
• Before you install a new PHM or replacement processor, update your system firmware to the latest level.
See "Update the firmware" on page 142.
• Installing an additional PHM can change the memory requirements for your system. See "Install a memory
module" on page 66 for a list of processor-to-memory relationships.
for a list of processors supported for your server. All
.
Chapter 3 Server hardware setup
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