Surface Roughness Comparator:
Surface finish is an important factor that we all look for when holding a new heatsink. Flipping a cooler over to see how well the base has been machined is a quick way to judge the attention to detail that was put into making it. The following FrostyTech Surface Roughness Comparator offers a concise cross section common machine surface finishes. Not every heatsink base will fit into the envelope of this gage, but it does offer a very handy set of representations.
This commercially available gage has 22 machined surfaces from 2 to 500 microinches; Lapped (2, 4, and 8 µ" RA), Ground (8, 16, 32, and 63 µ" RA), Blanchard Ground (16 and 32 µ" RA), Shape Turned (32, 63, 125, 250, and 500 µ" RA), Profiled (63, 125, 250, and 500 µ" RA), and Milled (63, 125, 250, and 500 µ" RA).
Acoustic Samples: Listen to this Heatsink!
the odd appearance of the Copper Silent 2 fan, the design is remarkably quiet
under power. To listen to this heatsink for yourself in operation, be sure to
click on the little headphones icon below and download the Acoustic Sample MP3
(high) FrostyTech Acoustic
Despite the odd appearance of the Copper Silent 2 fan, the design is remarkably quiet under power. To listen to this heatsink for yourself in operation, be sure to click on the little headphones icon below and download the Acoustic Sample MP3 file.
(high) FrostyTech Acoustic Sampling Chamber
Sound Level Measurements:
Listening to the actual noise a heatsink makes allows you to hear what pure numbers alone cannot get across. To further emphasize FrostyTech's reliance on cold hard facts when evaluating a heatsink, we also take Decibel readings with a sound level meter. These results may be higher than the manufacturer's listed specs, but then again these are real world measurements. Measurements are made on the dB (A) scale.
Weighing in at 37.9 dB, the Arctic Cooling Copper Silent 2 is indeed remarkably quiet for an active heatsink. Low noise heatsinks don't always translate into very good thermals, so it will be interesting to see how the heatsink handles the synthetic temperature tests next.
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