Acer Altos R720 Series - Manual (Page 54)

3 System upgrade 44
Removing the CPU air dam
To remove the CPU air dam:
Important: Do not remove the CPU air dam if only one processor
is installed. Do not remove the memory air deflector. If two
processors are installed, remove the CPU air dam. If installing full-
height DIMMs, remove the memory air deflector.
1 Observe the ESD precautions and pre-installation instructions
described on page 35.
2 Turn the CPU air duct over (A).
3 Slide the air dam’s slotted holes off the duct pins, then gently pull
the air dam from the air duct (B).
4 Store it in a protective packaging.
Memory air deflector