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Sibak AC02625B Copper Core Heatsink Review
Sibak AC02625B Copper Core Heatsink Review
  80%   
Abstract: First there was Thermosonic, then Thermal Integrations and Arkua, and now Sibak have joined the ranks.

 Company link  Category  Published  Author 
Sibak   Cooling / Heatsinks   Mar 26, 2002   Max Page  
Home > Reviews > Page Title: Thermal and Acoustic Test Results

Acoustic Samples: Listen to this Heatsink!

The waveform image shown below is out of scale for the Sibak AC02625B even though it is a noisy little guy (59.7dB). To listen to the heatsink and hear for yourself what this heatsink actually sounds like. Just click on the headphones and listen to the MP3 recording.

FrostyTech Acoustic Sampling Chamber

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

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.

FrostyTech Sound Level Results
- Manufacturer Model Noise Level Scale
JMC Prducts 400023 46.6 dB quiet
Zalman All Flower HSF 47.4/28.9 dB
Taisol CGK760092 48.4 dB
GlacialTech Igloo 2310 49.4 dB
Noisecontrol Silverado 50.8 dB
Thermal Integration TI-V77L 53.0 dB
Tocools Crown 54.5 dB
Sibak AT01515B 55.8 dB
Sibak AC02625B 59.7 dB
Dynatron DC1206BMP 65.1 dB louder

This shiny little aluminum encased heatsink is a little bundle of noise and high RPM's which I'm sure a lot of you will enjoy. With a fan spinning at 7000RPM, and drawing 0.34A you can guess that things are far from "quiet" on the western front.

Synthetic Temperature Test Results: *Ranked according to 100W small interface die test results.

FrostyTech Synthetic Temperature Test Platform Results
Mfg. Model Ambient Temp. 27mm large copper block 15mm small copper block 27mm large copper block 15mm small copper block Thermal pad No. Fans Fan Noise Clip force
50W 50W 100W 100W
1 Thermal Integration TI-V77L 26.5 39.1 44.4 57.5 63.6 grey 1 med med
2 Sibak AC02625B 23.2 41.3 59.0 43.2 64.7 none 1 loud med
3 Swiftech MCXC370 21.4 38.3 43.4 53.5 65.7 none 1 med med
4 Tocools Crown 23.2 38.8 53.2 47.9 70.2 none 1 loud stiff
5 OCZ Gladiator 21.4 33.3 47.3 50.6 70.3 none 1 very loud med
6 Vantec CCK-6027D 27.4 45.4 49.6 64.9 73.4 none 1 med med
7 Swiftech MCX370 22.3 42.0 46.1 60.3 75.6 none 1 med hard
8 Taisol CGK760092 23.4 42.7 61.2 51.3 77.5 pink 1 low med
9 Zalman CNPS6000-Cu 24.8 46.4 53.8 65.6 78.2 none 1 very low easy
10 AVC 112AM1 24.8 46.6 52.9 70.1 79.6 none 1 low stiff
11 GlacialTech Igloo 2310 23.5 44.9 66.7 53.7 80.8 silver 1 med very stiff
12 Thermaltake Volcano 6cu+ 26.5 40.3 55.3 58.6 84.4 carbon 1 loud med
13 JMC Products 400023 23.1 44.5 65.2 55.3 85.2 Chomerics T725 1 low easy
14 Zalman CNPS6000AlCu 24.9 48.3 56.3 72.2 86.0 none 1 low med
15 Sibak AT01515B 23.0 45.1 64.6 60.1 95.2 none 2 med stiff
50W 50W 100W 100W

Compared to the last Sibak heatsink we reviewed (the AT0151B) this is one heck of a difference, the AC02625B is in line to be one of top coolers in this list of reference heatsinks.

We'll have to look at the rise above ambient temperature results to see just how well the Sibak AC02625B performs against the Thermal Integration TI-V77L.

Rise Above Ambient Temp. (c)
Mfg. Model 27mm large copper block 15mm small copper block 27mm large copper block 15mm small copper block
50W 50W 100W 100W
1 Thermal Integration TI-V77L 12.6 17.9 31.0 37.1
2 Sibak AC02625B 18.1 35.8 20.0 41.5
3 Swiftech MCXC370 16.9 22.0 32.1 44.3
4 Vantec CCK-6027D 18.0 22.2 37.5 46.0
5 Tocools Crown 15.6 30.0 24.7 47.0
6 OCZ Gladiator 12.0 26.0 29.2 49.0
7 Swiftech MCX370 19.7 23.8 38.0 53.3
8 Zalman CNPS6000-Cu 21.6 29.0 40.8 53.4
9 Taisol CGK760092 19.3 37.8 27.9 54.1
10 AVC 112AM1 21.8 28.1 45.3 54.8
11 GlacialTech Igloo 2310 21.4 43.2 30.2 57.3
12 Thermaltake Volcano 6cu+ 13.8 28.8 32.1 57.9
13 Zalman CNPS6000AlCu 23.4 31.4 47.3 61.1
14 JMC Products 400023 21.3 42.0 32.1 62.0
15 Sibak AT01515B 22.1 41.6 37.1 72.2
50W 50W 100W 100W

Well the Sibak AC02625B doesn't quite have what it takes to outperform the Thermal Integration heatsink but it is a very strong contender in this list of reference heatsinks. It is also one of the loudest heatsinks here with a measured noise rating of 59.7dB.

Of course the better a heatsink performs is usually related to how fast and powerful the fan is, and with the Sibak you are looking at some very good performance numbers on the small interface die at 100W. Bottom line; a very good little noisy heatsink with a chewy copper core!



 Previous Page °
Heat Sink Review Index  

Table of Contents:

 1:  Sibak AC02625B Copper Core Heatsink Review
 2:  Perspective views of this heatsink
 3:  New Heatsink Test Parameters
 4: — Thermal and Acoustic Test Results

List all Sibak heat sinks that Frostytech tested?

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