360° View -
Dynatron A22 Heatsink
Information on
Frostytech's test methodology is available
here. | |
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The
Heatsink Fan: The 70x70x15mm fan spins
between 3000RPM (32°C) and 5700RPM (42°C) depending on ambient air
temperature in the
chassis as determined by a small thermistor located at the edge of the motor
hub. The 11-bladed Delta fan impeller produces anywhere between 24-47CFM air flow. There is
no fan grill, which is worrisome when it rotates at full speed.
The fan draws power from a standard 3-pin motherboard fan header that
supports RPM monitoring. |
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Heatsink Top: After the fan support have been removed, the
knife-edged surface of the 51 v-shaped
skived aluminum fins are visible. A 16mm wide space supports the K8 clip mechanism. Each
skived fin is about 30x33mm in size. The aluminum fan support creates a 3mm plenum over the fins
of the heatsink. |
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Heatsink Side A:
Once clipped onto the plastic retention frame, the heatsink is locked is installed by
rotating the locking arm until it is fully engaged. The aluminum base of the heatsink itself
is 6mm thick. The total height of the Dynatron A22 heatsink is 59mm.
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Heatsink Side B: There are two rows of 51 skived aluminum fins on the Dynatron A22
heatsink. The fins are spaced about 1mm apart, and measure 0.5mm thick. The tips have been left in
their natural state, and have a knife-edge. The fins connect to the base
at an angle, and are also angled inwards at the top. |
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Heatsink Base: The 68mm x 77mm aluminum base is very nicely
machined, and perfectly flat and smooth. Surface finish is at or
better than a roughness of ~4 microinches). A small packet of silicon
thermal compound comes with the heatsink, and of that only a very
light coating is really needed.
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