|360° View - Auras SLC-747 Heatsink
Frostytech's test methodology is available
The Auras SLC-747's 95x95x25mm PWM fan spins at a speed of 700-2400RPM
when controlled by the computer's BIOS, producing as much as 52 dBA
according to real world sound measurements. The fan draws power from a standard 4-pin
PWM fan header and is backwards compatible with 3-pin fan headers. The fan is not
With the fan removed from the Auras SLC-747 heatsink, the construction of it's
fins and heatpipes is clearly visible. The four 6mm diameter heatpipes conduct as
much heat as possible from the base to the outer fins.
Each aluminum fin is 0.3mm thin, spaced 1.23mm apart. The two outer heatpipes overlap
areas which generally get the most airflow from the fan. This style is very
similar to several heatsinks produced by Zalman and Akasa.
Heatsink Side A:
From the side we can see copper heatpipes within he Auras SLC-747 heatsink looping
around from the base to the fins. The copper heatpipes reach
out from the base where they are tightly packed side-by-side, and spread out
through the body of the cooling fins to evenly
distribute the heat. The joints between the copper heatpipes and aluminum
fins do not appear to have any thermal joint enhancing compounds applied,
and are not soldered.
The Auras SLC-747 heatsink comes with two special
metal brackets that screw into the base for either
Intel or AMD heatsinks. The Intel clip uses standard Intel push-to-click plastic
retention feet, the AMD version locks onto the central lug of the
heatsink retention frame on either AM2/939 models. Each aluminum fin in profile measures
roughly 105mm across, 38mm tall. The copper heatpipes are 6mm in diameter and
marked "YC71E-1 / YC71B-1."
The body of the
Auras SLC-747 heatsink stands ~45mm tall, and the heatsink has an overall height of 69mm. The
copper base appears to be ~6mm thick, and it is soldered to each
of the copper heatpipes. Note how the 95mm fan has big vents cut into the
side of it around the impeller.
The base of the Auras SLC-747
heatsink has a machined and polished finish which
is perfectly flat in both axis. The copper base plate measures
36x36mm in size. Surface roughness is equivalent to ~16
microinches, which is considered excellent. The four 6mm diameter copper heatpipes are soldered to
the base, but there are only compression joints between the heatpipes and the aluminum
fins. The two mounting brackets attach to the base via the four
screw holes which you can see ringing the copper mounting