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Silverstone
NT07-775 - $20USD
The Silverstone NT07-775 is the smallest heatsink we've ever tested. It designed
for ultra thin cases like the Silverstone LC19
and ML02.
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The NT07-775 stands only 36 mm high and weighs 300 grams.
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The heatsink shares the same radial fin orientation as the Intel
stock cooler, but it is 9 mm shorter. The fan has thinner, more
numerous blades. Unfortunately the support struts are almost parallel to the trailing edges of the fan blades, increasing
the potential for tonal turbulence noise.
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Like the heatsinks that ship with Intel's quad core CPUs, the
NT07-775 has a copper core.
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Installed on our test platform.
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Test Results
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Fan Voltage
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Fan Speed
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SPL@1m
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Thermal Rise
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°C/W
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12V
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1880 RPM
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24 dBA
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40°C
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0.51
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10V
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1660 RPM
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20 dBA
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44°C
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0.56
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9V
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1490 RPM
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17 dBA
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49°C
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0.63
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8V
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1320 RPM
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15 dBA
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55°C+*
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0.71+
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Thermal Rise: Temperature rise above ambient at
load.
°C/W: based on the amount of heat dissipated by the CPU (measured
78W); lower is better.
*Testing stopped after thermal rise exceeded 55°C.
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The NT07-775 was fairly quiet overall compared to most CPU coolers, though
you would expect the fan to spin faster to compensate for its small size. At
12V, it had an annoying whine with plenty of buzzing generated by the motor.
The noise level was tolerable at 10V and below, but it did develop a bit of
a drone. At 8V it was very quiet, barely audible in most environments, but the cooling performance would not be good enough if your system is pushed hard regularly, except perhaps with the coolest CPUs.
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