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

Step 2. Slide the system board into the compute tray until the release clips snap into the locked position.
Step 3. Connect all cables on the system board that go to connectors in the compute tray. See "Internal
cable routing" on page 35.
After you install the system board:
• If you installed the lower system board in a compute tray, slide the upper system board or filler back into
the compute tray until the release clips snap into the locked position.
• If you have no additional options to install in this compute tray, install the compute tray. See "Install a
compute tray" on page 307.
• If you have no additional options to install in the upper or lower compute tray, install the front cover. See
"Install the front cover" on page 227.

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.
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.
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.
" on page 56 "
" on page 57
" on page 254 "
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Chapter 3 Server hardware setup
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