Acer AR160 F1 - Manual (Page 58)

3 System upgrades 42
(4) Grasp the installed processor by its edges and lift it out of its
socket.
(5) Store the old processor inside an anti-static bag.
6 Remove the new processor from its protective packaging.
7 Install the new processor.
(1) Hold the processor by its edges. Make sure the alignment tabs
on the socket fit the two notch located on the edge of the
processor. The pins are keyed in such a way that you cannot
install the processor in the wrong orientation without
bending the pins.
(2) Insert the new processor in the socket.
(3) Close the retention plate.