|360° View - Coolermaster
Information on Frostytech's test
methodology is available
||The Heatsink Fan: |
A stylish black wire grill shields the 9-bladed impeller on the 92x92x25mm Delta NFB0912L fan.
The upper half of the fan frame is cut away and the edges of
the fan blades are extended a little into that space. This alteration diminishes
the most common source of fan noise - air
entering the fan body. Power comes via a standard 3-pin motherboard fan
header which supports RPM monitoring. According to Coolermaster, fan speed
is 1400RPM. According to Delta that figure is supposed to be 2100RPM.
An aluminum fan shroud wraps around the
upper portion of the Hyper48's copper fins and supports the 92mm fan with a 5mm plenum below. The four
heatpipes are spaced a good 26mm and 10mm apart so as not to restrict airflow
entering the body of the cooler by much. The copper fins are 0.3mm thick
and positioned every 2.4mm. Note how the heat pipes converge at the base of
the Hyper48 so they're directly over the CPU core.
Heatsink Side A:
The four 6mm
diameter copper heat pipes converge at the base of the heatsink directly over the CPU core, which is where
temperatures are highest. The copper base plate is 5mm thick on average, but extends
to 10mm thick where contact is made with the CPU's integrated heat spreader.
Heatsink Side B:
The Hyper48 is 68mm wide at
the base and 93mm at the top. The copper fins
use interlocking tabs which keep fin-to-fin spacing exact.
||Heatsink Side C: |
The two shoulders on either side of the
Hyper48 heatsink are for the K8 / P4 heatsink mounting clips to rest on.
When clipped into place over a CPU, the clamping forces are applied to
these two pads. If you look at the side of the Delta fan you can easily see
how half the frame is split open. The heatsink stands 96mm in height. The
fan is 25mm thick.
The copper base measures
68x55mm and is responsible for distributing heat from
the CPU to the heatpipes and copper fins. The four screw
holes surrounding the round 40mm portion are for the LGA775
mounting clip to attach to. An engineer's straight edge shows us
that base flatness is excellent, with surface roughness being about 8
microinches or thereabouts.