AXIOMTEK SBC87842, User Manual

Page: 55 / 55

SBC87842 Single Board Computer
Heatspreader (Optional) 49
Appendix B
Heatspreader (Optional)
B.1 Installing Heatspreader
For thermal dissipation, a heatspreader enables the SBC87842
’s components to dissipate
heat efficiently. All heat generating components are thermally conducted to the heatspreader in
order to avoid hot spots. Below images illustrate how to install the heatspreader.
1.
There is a protective plastic covering on the thermal pads. This must be removed before
the heatspreader can be mounted.
2.
Each heatspreader is designed for a specific purpose. The thermal pads on the
heatspreader are designed to make contact with the necessary components on the board.
When mounting the heatspreader you must make sure that the thermal pads on the
heatspreader make complete contact (no space between thermal pad and component)
with the corresponding components on the board. This is especially critical for CPU
board that have higher CPU speeds (for example 1.46GHz or more) to ensure that the
heatspreader acts as a proper thermal interface for cooling solutions.
3.
Before installing the heatspreader to the board, please apply thermal grease on the CPU
die. This board has six assembly holes for installing heatspreader plate. Use the six
screws to secure the heatspreader plate to the SBC87842. Be careful not to over-tighten
the screws.