Acer Altos R720 Series User Manual page 57

To install the large air baffle
1 Observe the ESD precautions and pre-installation instructions
described on page 35.
2 Lower the air baffle into the chassis and snap it into the
mainboard standoff.
3 While setting the baffle into place, route the cables beneath it
appropriately.
4 Observe the post-installation instructions described on page 36.
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