2.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.

Make sure that the fan and retention mechanism assembly perfectly fits the heatsink and module base, otherwise you cannot snap the hooks into the holes.

RetentionHole

RetentionLock

RetentionHookSnapped totheRetentionHole

Keep the retention locks lifted upward while fitting the retention mechanism to the module base.

ASUS P4S8X motherboard user guide

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