Foxconn 865M01 series User Manual page 21

Attention:
1. Position the fan with the retention mechanism on top of the heatsink.
Align and snap the four hooks of the retention mechanism to the holes
on each corner of the module base.
2. Make sure that the fan and retention mechanism assembly perfectly fits
the headtsink and module base, otherwise you cannot snap the hooks
into the holes.
Retention Lock
Warning:
Keep the retention locks lifted upward while fitting the retention
mechanism to the module base.
865M01G/PE/GV User Manual
Chapter 2 Installation Instructions
Retention Hole
Retention Hook snapped to
the Retention Hole
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