DFI 661FX-MLV User Manual page 22

2
Hardware Installation
1. The system board comes with the retention module base al-
ready installed.
2. Position the fan / heat sink and retention mechanism assembly
on the CPU, then align and snap the retention legs' hooks to
the retention holes at the 4 corners of the retention module
base.
Snapped
22
Retention
module base
Note:
You will not be able to snap the hooks into the holes if the
fan / heat sink and retention mechanism assembly did not
fit properly onto the CPU and retention module base.
Unsnapped
Retention
hole
Retention
hole
Retention
hole
Retention
hole
Fan / heat sink
and retention
mechanism
assembly