| 360° View -
nPowerTek NPH 775-1 Heatsink
Information on Frostytech's test
methodology is available here.
The Heatsink Fan:
Looking at the top of the nPowertek
heatsink the top of the 25mm diameter
heat column is visible. The anodized aluminum fan shroud is constructed
with 1mm thick aluminum sheet metal, it holds the 80mm fan in place and
has space for a second too. The fan is powered by a standard 3-pin
fan header which supports RPM monitoring.
The 80mm fan blows it cool air across
the copper fins
and around the heat
column which ranges from top to bottom of the nPowertek NPH 775-1 heatsink. Since
the sides of the heatsink are left open, there is little problem with back pressure.
||Heatsink Side A:|
From this angle we can get a
better view of how the 80mm fan is
positioned with respect to the
25mm diameter heat column that extends the height of the cooler. Since
the sides of the nPowertek NPH 775-1 heatsink are open, air can
move in and out of the unit as pressure dictates.
The bottom 25mm heat column has no cooling fins so there is
adequate clearance for the clip and mounting hardware. The copper fins are 0.2mm
thick and spaced about 1.5mm apart.
Heatsink Side B:
The nPowertek NPH 775-1 heatsink uses captive spring tensioned screws that mount to a
rear motherboard support plate. For this you'll first have to remove the motherboard,
add the rear plate, and then install the heatsink. The screws each have
a compression spring which applies the correct amount of force under load, so
the NPH 775-1 rests evenly upon the processor. Installation will require removing the motherboard from
the chassis, and a phillips screwdriver.
A 31mm copper base makes direct contact with
the processor's integrated heatspreader. This disk of copper is the base of the heat column, so there are
no other thermal joints between the CPU and component which transfers heat energy throughout the rest of the cooler. The base is machined flat, and very smooth. Surface roughness is equivalent to about 16 microinches, which is considered very good. An aluminum frame is used to attach the NPH 775-1 heatsink
to a threaded socket 775 rear metal support bracket.