Asus ESC500 G3 - Manual (Page 28)

Chapter 2: Hardware setup 2-8
2.3.2 Installing the CPU heatsink and fan assembly
To install the CPU heatsink and fan assembly
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B
B
A
A
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Apply some Thermal Interface Material to the
exposed area of the CPU that the heatsink will
come in contact with, ensuring that it is evenly
spread in a thin layer.
If the heatsink comes with pre-applied
Thermal Interface Material skip this
step.
The Thermal Interface Material is
toxic and inedible. DO NOT eat it. If
it gets into your eyes or touches your
skin, wash it off immediately and seek
professional medical help.