Acer Altos R5250 - Manual (Page 63)

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6 Remove the new processor from its protective packaging.
7 Install the new processor.
(1) Hold the processor by its edges, then insert it in the socket (A).
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) Close the retention plate (B).
(3) Engage the load lever back into place (C).
8 Apply the thermal interface material.
(1) Use an alcohol pad to wipe off the old thermal grease from
both the HSF assembly and the processor socket retention
plate.
(2) Apply a thin layer of an Acer-approved thermal interface
material before installing the HSF.
Make sure that only a very thin layer is applied so that both
contact surfaces are still visible.
9 Install the heat sink.
Caution! The heat sink has a thermal interface material (TIM) on
the underside. Use caution so that you do not damage the TIM.
(1) If a protective film is installed on the TIM, remove it.
A
B
C