Computer System Servicing | Install and configure computer systems
Installing
Heatsink and CPU Fan
After installing the CPU/Processor we proceed to installing the
heatsink and CPU fan.
A heat sink is a thermal conductive metal device designed to
absorb and disperse heat away from a high temperature object
such as a computer processor. Usually heat sinks are outfitted
with built-in fans to help keep both the CPU and the heat sink at
an appropriate temperature. Heat sinks are made out of metal,
such as a copper or aluminum alloy, and are attached to the
processor. Most heat sinks have fins, thin slices of metal
connected to the base of the heat sink, which help spread heat
over a large area.
AMD
INTEL
The heat sink and fan assembly is a two-part
cooling device.
 The heat sink draws heat away from the CPU.
 The CPU fan moves the heat away from the heat sink.
The combination of a heat sink and fan (HSF) is
referred to as an active heat sink, while a heat sink
without a fan is a passive heat sink. In addition to the
HSF, a heat sink compound(thermal paste) is
sometimes used. This is a coating between the device
and the heat sink to improve thermal conduction.
active heat sink
passive heat sink
The CPU Heat sink and Coolers Fan (CPU Fan)
CPU Fan
Heatsink
Push pins
Plastic fastener
Mounting point
It is the four holes in the motherboard around the socket. These
coincide with the 'legs' of your heatsink. Lower the heatsink
vertically down onto the processor and socket so that each of
the 'legs' lines up with a hole.
CPU
Fan
CPU
Heat
Sink
There is no special way the heatsink has to face, as long as the point on the end of
each of the 'legs' fits into one of the holes.
To install an Intel cooler, you
must make sure that its
pushpins are disengaged (in
their uppermost positions), and
then you must press the plastic
fasteners through the four
mounting holes around the CPU
socket. Confirm that the
fasteners are inserted all the
way through the holes before
engaging the pushpins, or the
heat sink will not sit flush--and
your processor will likely
overheat.
1
Confirm that the fasteners are inserted all the way
through the holes before engaging the pushpins, or
the heat sink will not sit flush--and your processor
will likely overheat.
2
If everything is secure and sitting flush, connect
the coolers fan connector to the CPU fan header
on the motherboard. You’re done!
3
coolers fan connector
(Also called CPU Fan connector)
Never tilt heat sink when installing it. This could
damage the processor.
(A)
(B)
Picture A) shows the incorrect way while picture B) shows the correct way
to install the heat sink.
CPU Fan
https://www.techopedia.com/definition/2211/heat-sink
https://www.computerworld.com/article/2500813/how-to-install-a-cpu-cooler.html