Acer Altos G520 - Manual (Page 66)

3 Upgrading the system 56
Lift the CPU locking lever until it is fully extended (1).
Gently unseat and pull the CPU from the socket (2).
Warning! The heatsink becomes very hot when the system is on.
NEVER touch the heatsink with any metal or with your hands.
Processor Sequence
If only one CPU is to be installed, it must be installed in the CPU 1
socket, see “CPU socket 1” in “Mainboard layout” for more
information. In this case, the CPU 2 socket no longer requires a
termination module. When installing multiple processors, install CPU 1
first, then CPU 2.
To install a CPU with heatsink
1 Observe the ESD precautions and pre-installation procedures
described on page 37.
2 Locate the CPU socket on the mainboard.
3 Align the CPU to its socket, making sure that pin 1 (indicated by
the notched corner) of the CPU connects to hole 1 of the socket
(on the bottom right corner).
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