Cisco UCS B420 M3 Installation And Service Note page 21

Step 6
Close the socket latch. See callout 1 in the following figure.
Step 7
Secure the first hook, which has the following icon:
Step 8
Secure the second hook, which has the following icon:
Figure 15: Replacing the Heat Sink (B200 M3 Shown)
Step 9
Using the syringe of thermal grease provided with replacement CPUs and servers, add 2 cubic centimeters of thermal
grease to the top of the CPU where it will contact the heat sink. Use the pattern shown. This should require half the contents
of the syringe.
The thermal grease has very specific thermal properties. Thermal grease from other sources should not be
Caution
substituted because it may lead to damage.
Note CPU spares come with two syringes of thermal grease; one with a blue cap and one with a red cap. The syringe
with the blue cap is used with this server.
See callout 2 in the following figure.
See callout 3 in the following figure.
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