Acoustic Samples: Listen to this Heatsink!
With the Zalman CNPS9500 AM2 heatsink powered up, noise levels are not overly loud. This heatsink should work well in applications that call for lower noise, which is what we always like to hear. Nothing quite compares to listening to the actual noise created by a heatsink in operation. To listen to this heatsink, click on the little headphones icon below and play the sample MP3 files for the heatsink running with its fan at full speed, and reduced speed.
Sound Level Measurements: Which Heatsink is Quietest?
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 noise level measurements with a sound level meter.
With its 92mm fan spinning at the full 2600RPM, the Zalman CNPS9500 AM2 heatsink produces about 53.2 dBA noise. By utilizing the included FanMate2 fan speed controller we can adjust fan speed down to just 1350RPM. At this much reduced speed the CNPS9500 AM2 heatsink puts out just 36.0 dBA according to our real world measurements from about 12" distance.
Also included in this acoustic reference list is an assortment of Zalman's recent K8 compatible heatsinks at high and low fan speeds. About half of the heatsinks listed are compatible with the revised AMD socket AM2 heatsink retention frame. The AVC Z7U7414001 heatsink is considered the reference socket AM2 heatsink approved by AMD.
Surface Finish and Flatness
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 test involves the use of a Surface Roughness Comparator, which offers a concise cross section common machine surface finishes.
The Zalman CNPS9500 AM2 heatsink has a surface roughness of approximately 12 microinches, which is considered very good. Next, let's see how this heatsink handles the heat compared to a selection of other heatsinks!
Find a Heatsink / RSS Feeds
. Latest Heatsink Reviews
. Top 5 Heatsinks Tested
. News RSS Feed
. Reviews RSS Feed
. Contact Us / Heatsink Submissions
. Submit News
Images © FrostyTech.com and may not be reproduced without express written permission. Current students and faculty of accredited Universities may use Frostytech images in research papers and thesis, provided each image is attributed.