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Zalman CNPS7000A-Cu Socket A/478/754 Heatsink Review
Zalman CNPS7000A-Cu Socket A/478/754 Heatsink Review
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Abstract: Zalman's heatsinks have become well known to consumers looking for low-noise cooling accessories.

 Company link  Category  Published  Author 
Zalman   Cooling / Heatsinks   Jan 03, 2004   Max Page  
Home > Reviews > Page Title: Acoustical Test Results

Acoustic Samples: Listen to this Heatsink!

When powered up without the fanmate 1, the CNPS7000A-Cu is a fairly quiet heatsink, but not totally silent. The motor generates some noise just by the air moving through the copper fins. 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
Zalman CNPS7000A-Cu 42.2 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
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 Zalman CNPS7000A-Cu without the Fanmate 1, at just over 42 dBA. At this noise level, it would be hard to hear the heatsink from outside of the case. Up next, thermal results.



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Table of Contents:

 1:  Zalman CNPS7000A-Cu Socket A/478/754 Heatsink Review
 2:  Closer Examination of the Heatsink
 3:  Heatsink Thermal/Acoustic Test Parameters
 4:  Surface Roughness Comparison
 5: — Acoustical Test Results
 6:  Socket A Temperature Test Results
 7:  Socket 478 Temperature Test Results

List all Zalman heat sinks that Frostytech tested?

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