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INSTALLATION
The most critical aspect of installation is for the heatsink to be securely
mounted. A firm mating results in good contact between the heatsink's base and
the GPU core and more efficient heat conduction. Ease of installation is also
important; a simple mounting scheme means less hardware to fiddle with, and
a reduced likelihood of screwing up.
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Our test card, a Radeon HD 4890. The stock cooling plate is left
on because it's a far more efficient method for cooling the VRMs then
what most aftermarket heatsinks provide.
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Like the Musashi,
the Setsugen uses thin screws with threads on both sides. However the
mounting plate has been altered — instead of pre-drilled holes there
are small nuts each sliding on its own rail. As there is no way to lock
them in place, this will result in an uneven mounting.
As a result of this quirk, we actually had to install
the cooler twice. The first time around we found that two of the on-die
GPU sensors readings were more than 20°C apart on load; typically
the difference is only 5°C at most. On the second mounting, the difference
was halved.
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The longer sides of the screws go through the PCB and are secured
to a padded mounting plate using large nuts. It should be noted the entire
installation is requires no tools.
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Mounted.
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The cooler overhangs the side of the card by approximately 4.7cm.
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