Intel® Thermal/Mechanical Reference Design Information
54 Thermal and Mechanical Design Guidelines
5.7.2 Mechanical Interface to the Reference Attach Mechanism
The attach mechanism component from the reference design can be used by other 3
rd
party cooling solutions. The attach mechanism consists of:
A metal attach clip that interfaces with the heatsink core, see Appendix F
Figure 66 and Figure 67 for the component drawings.
Four plastic fasteners, see Figure 68, Figure 69, Figure 70, and Figure 71 for the
component drawings.
The clip is assembled to heatsink during copper core insertion, and is meant to be
trapped between the core shoulder and the extrusion as shown in Figure 16.
Figure 16. Reference Clip/Heatsink Assembly
Core shoulder
traps clip in place
Core shoulder
traps clip in place
Clip
The mechanical interface with the reference attach mechanism is defined in Figure 17
and Figure 18. Complying with the mechanical interface parameters is critical to
generati
ng a heatsink preload compliant with the minimum preload requirement
provided in Section
2.1.2.2.
Additional requirements for the reference attach mechanism (clip and fasteners)
include:
Heatsink/fan mass ≤ 550 g (i.e., total assembly mass, including clip and
fasteners < 595 g
Whole assembly center of gravity ≤ 25.4 mm, measured from the top of the IHS
Whole assembly = Heatsink + Fan + Attach clip + Fasteners
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