|360° View - Scythe Infinity (SCINF-1000)
Frostytech's test methodology is available here.
The 120x120x25mm fan
is held in place on the Scythe Infinity with a pair of springy wire
clips. A second 120mm fan may be installed onto the opposite
side of the heatsink if desired (not included), or 90mm fans
can be attached to either edge. The fan spins at a low 1200RPM, generating
less than 38dBA noise according to Frostytech's real world sound
measurements. It connects via a standard 3-pin fan header
to the motherboard and supports RPM monitoring.
Scythe call the overlapping fins here
the "Infinity Interleave Fin
Structure". Every other fin is a different width, some 42mm
and others 96mm wide. This gives the Infinity heatsink its
distinctive fin density right around the heatpipes, and
wide fin pitch at
the center of the heatsink where airflow is reduced. The voids between the
aluminum fins are meant to aide slower airflow moving
through the cooler with
as little resistance as possible. Each aluminum fin is 0.38mm thick,
and spaced 3.5mm or 1.5mm apart.
Poking out the top of
the Scythe Infinity heatsink are the tips of five "U" shaped 6mm diameter
copper heatpipes. To help reduce pressure drop a 5mm plenum is left behind the
fan motor. Springy wire clips will hold a 120mm fan firmly in
place on any one of four sides of the heatsink. Only one pair of 120mm
sized clips is provided. The ten heat pipe ends are covered with false nuts
for the sake of appearance. The bulk of the heatsink is
125x114mm in size.
Heatsink Side A:
The Scythe Infinity heatsink stands 155mm tall, the fins making up
108mm of that total height. There is 38mm space below the bottom most fin to
provide clearance for adjacent motherboard components. At the bottom is the extruded
aluminum heatsink which the mounting clips lock into. The five heatpipes are soldered between
the aluminum extrusion and a 2mm thin copper base plate below. The Infinity heatsink is 125mm
wide, so you might want to measure your motherboard clearances first before picking this
Heatsink Side B:
The Scythe Infinity is a big
heatsink. The false nuts covering the heatpipes add an additional 14mm
to its overall height unnecessarily.
The copper base soldered onto the bottom
of the Scythe Infinity heatsink measures 45x51mm in size. It is very smoothly
polished with a surface roughness of ~8 microinches. The base is generally very flat. The extruded aluminum section above the copper base provides rigidity and a place for the
mounting clips to transfer force directly onto the CPU core.
The copper plate itself is quite thin, just 2mm thick in fact.
The heatpipes, copper base and small extruded aluminum heatsink are all soldered