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Evercool CUF-715 Copper AthlonXP Heatsink Review
Evercool CUF-715 Copper AthlonXP Heatsink Review
  72%   
Abstract: This compact Socket A copper heatsink comes with all the features you'd expect from a mainstream cooler; copper base, copper fins, good sized fan, and even a fan guard.

 Company link  Category  Published  Author 
Evercool   Cooling / Heatsinks   Feb 22, 2004   Max Page  
Home > Reviews > Page Title: Surface Roughness and Acoustical Comparisons

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).

FrostyTech Surface Roughness Comparator
2L 4L 8L 8G 16G 16BL 32G 32BL 32ST 63G 63M 63P 63ST 125M 125P 125ST 250M 250P 250ST 500M 500P 500ST

The base of a heatsink plays an important role in how well the cooling apparatus interfaces with the processor. Poor surface roughness will affect a good heatsink just as much as a good surface finish will improve thermal conductivity. In an effort to put a more quantitative spin on the comments we provide about base finishes, FrostyTech has begun using a Surface Roughness Comparator.

Move your mouse over the image above to see an example at right. Numbers are in Microinches, and finishes from 2 microinches to 32 microinches are excellent-to-good.

Evaluation Notes:

The Evercool CUF-715 heatsink had a surface roughness of approximately 32 microinches, which is good. Move your mouse over the tabs above and look at 32ST for an approximate example of what this surface finish looks like.

Acoustic Samples: Listen to this Heatsink!

The gold-tipped fan is certainly eye catching, but just how loud is it? Well, according to our measurements the Evercool CUF715 weighs in about the 52 dB level. Making it pretty average compared to the competition. 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

Standard Waveform view of a 10 second recording. Click on the headphones to listen to an MP3 recording of this heatsink in operation.
Listen to this Heatsink now.

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.

FrostyTech Sound Level Results
- Manufacturer Model Noise Level Scale
Verax (low RPM) P14Cu 31.2 dB Quiet
Verax P11T 35.3 dB
Spire SPA04B4 35.3 dB
Spire 5U213C1H3G 35.7 dB
Titan D9TBCu35R1 37.6 dB
ArcticCooling CuSilent2 37.9 dB
Aopen ACK7L 40.4 dB
Thermalright SK-7 42.8 dB
Thermalright SLK-900A 43.0 dB
Coolermaster HSC-V62 43.7 dB
Akasa AK821 44.2 dB
Spire 5F263 44.5 dB
Zalman All Flower HSF 47.4/28.9 dB
Arkua 728M-7N01 48.2 dB
Taisol CGK760092 48.4 dB
Cho-Liang CB0307U-17 49.5 dB
Thermalright SK6+ 50.4 dB
Titan TTC-CU9TB/SC 50.5 dB
Taisol CEK787172 50.7 dB
nPowerTek TTIC NPH-2 50.7 dB
Arkua 628 50.7 dB
Scythe Kamakaze 51.0 dB
Evercool CUF715 51.5 dB
Tocools Novasonic 52.2 dB
Tocools Novasonic-AlCu 52.4 dB
Thermal Integration TI-V77L 53.0 dB
Jetart JAKS29 55.8 dB
Sibak AE01625B 58.2 dB
AVC Tundra 2 58.4 dB
Sibak AC02625B 59.7 dB
Coolermaster HHC-001 59.9 dB
Sibak AC06725TH 62.4 dB
Dynatron DC1206BMP 65.1 dB
Thermalright SLK800 66.2 dB
Thermalright AX-7 66.4 dB louder

We measured the noise levels of the Evercool CUF715 at 51.5 dB, which makes it pretty average, if on the high side of the reference list. This is not a quiet heatsink compared to true low noise coolers, but it isn't anything super loud either. Up next, the heatsink test results!



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Table of Contents:

 1:  Evercool CUF-715 Copper AthlonXP Heatsink Review
 2:  Closer Examination of the Heatsink
 3:  Heatsink Thermal/Acoustic Test Parameters
 4: — Surface Roughness and Acoustical Comparisons
 5:  Synthetic Temperature Test Results

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