Acer Altos R520 M2 Series User Manual page 77

To install a second processor :
1 Perform steps 1 to 3 of the previous section.
2 Prepare the processor 2 socket for installation.
(1) Refer to steps 4-1 and 4-2 of the previous section.
(2) Remove the socket cap from the processor socket.
3 Install the new processor.
Refer to steps 6 and 7 of the previous section.
4 Install the heat sink.
Refer to step 8 of the previous section.
5 Observe the post-installation instructions described on page 36.
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