Lenovo ThinkSystem ST250 V2 - Page 196

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 the “Installation guidelines” on page 85 to ensure that you work safely.
• Before reusing a processor that was removed from another system board, wipe the thermal grease from
the processor with an alcohol cleaning pad, and dispose of the cleaning pad after all of the thermal grease
is removed.
Note: If you are applying new thermal grease on the top of the processor, make sure to do it after the
alcohol has fully evaporated.
• Apply the thermal grease on the top of the processor with syringe by forming four uniformly spaced dots,
while each dot consists of about 0.1 ml of thermal grease.
Figure 108. Proper shape of the thermal grease
• Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
•
Watch the procedure
A video of this procedure is available at YouTube:
https://youtube.com/playlist?list=PLYV5R7hVcs-
DoEcxrm2zKNpaKOdZ3f8Qc
.
Procedure
Step 1. Hold the processor by both sides, and align the following:
1. Align
1 the small notches on the processor to 2 the tabs on the socket.
2. Align
3 the small triangle of the processor to 4 the beveled corner on the socket.
Then, gently lower the processor evenly into the socket.
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ThinkSystem ST250 V2 Maintenance Manual