Clip; Rcbf5 Clip - Intel BX80616I3540 Design Manual

ATX Reference Thermal Solution
6.4.2

Clip

Structural design strategy for the clip is to provide sufficient load for the Thermal
Interface Material (TIM).
The clip is formed from 1.6 mm carbon steel, the same material as used in previous clip
designs. The target metal clip nominal stiffness is 376 N/mm [2150 lb/in]. The
combined target for reference clip and fasteners nominal stiffness is 260 N/mm
[1489 lb/in]. The nominal preload provided by the reference design is 191 N ± 42 N
[43 lb ± ~10 lb].
Note: Intel reserves the right to make changes and modifications to the design as necessary
to the Intel RCBF5 reference design, in particular the clip.
Figure 6-4.

RCBF5 Clip

Thermal/Mechanical Design Guide 43