Acer Altos R920 Series User Manual page 89

(2) Tighten the screws in the order shown, approximately one full
turn at a time until each is evenly tightened. Do not fully
tighten one screw at a time.
8 Observe the post-installation instructions described on page 40.
To remove a processor:
Important: Before removing a processor from the mainboard,
make sure to create a backup file of all important data.
1 Perform the pre-installation instructions described on page 39.
Warning! The heat sink becomes very hot when the system
is on. NEVER touch the heat sink with any metal or with
your hands.
2 If necessary, remove the processor air baffle. Perform instructions
described in "To remove the processor air baffle" section on page
45.
3 If a heatsink is installed, remove the heat sink.
(1) Loosen the four screws on the heat sink in the order shown.
3
1
2
4
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