Sibak Thermal and Acoustic Test Results - AE01625B FrostyTech Review

Acoustic Samples: Listen to this Heatsink!

The 25mm fan on this heatsink is made by a company called Everflow and draws 0.34A of current. Rotating at about 6000RPM it draws in a fair bit of air, and the fan grill protects fingers and thumbs from getting clipped. The fan screws directly into the blades of the heatsink and so any vibrations are directly transferred to the rest of the computer chassis.

Some new heatsinks are starting to use rubber gaskets to isolate some of the vibrations from high-speed fans, and this is a really good idea. In any case, this heatsink is noisy as you can probably guess from the waveform image below.

To listen to this heatsink for yourself, simply click on the little pair of headphones and download the MP3 recording..

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.

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

Arkua 6228 50.7 dB

Noisecontrol Silverado 50.8 dB

NengTyi XPC5000 52.4 dB

Thermal Integration TI-V77L 53.0 dB

Tocools Crown 54.5 dB

Cybercooler P5750 55.4 dB

Sibak AT01515B 55.8 dB

Sibak AE01625B 58.2 dB

Sibak AC02625B 59.7 dB

Dynatron DY1206BH-625 63.3 dB

Dynatron DC1206BMP 65.1 dB louder

All of the Sibak coolers land pretty high on the list of loud heatsinks. I guess that is the price you pay for trying to get more performance out of a heatsink by increasing the amount of air that is moving over it. At the very least we are glad to see the fan did not break the 60dB barrier.

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 Arkua 6228 23.9 42.7 42.1 58.9 62.3 none 1 med med

2 Thermal Integration TI-V77L 26.5 39.1 44.4 57.5 63.6 grey 1 med med

3 Sibak AC02625B 23.2 41.3 59.0 43.2 64.7 none 1 loud med

4 Swiftech MCXC370 21.4 38.3 43.4 53.5 65.7 none 1 med med

5 Tocools Crown 23.2 38.8 53.2 47.9 70.2 none 1 loud stiff

6 Dynatron DY1206BH-625 23.2 40.0 55.1 47.6 70.4 none 1 loud stiff

7 Vantec CCK-6027D 27.4 45.4 49.6 64.9 73.4 none 1 med med

8 Cybercooler P5750 23.3 43.4 63.5 49.2 74.9

9 Swiftech MCX370 22.3 42.0 46.1 60.3 75.6 none 1 med hard

10 NengTyi XPC5000 23.9 46.5 49.1 69.1 76.1 none 1 med med

11 Taisol CGK760092 23.4 42.7 61.2 51.3 77.5 pink 1 low med

12 Zalman CNPS6000-Cu 24.8 46.4 53.8 65.6 78.2 none 1 very low easy

13 AVC 112AM1 24.8 46.6 52.9 70.1 79.6 none 1 low stiff

14 GlacialTech Igloo 2310 23.5 44.9 66.7 53.7 80.8 silver 1 med very stiff

15 Sibak AE01625B 23.5 40.8 54.4 57.1 81.0 none 1 loud easy

16 Thermaltake Volcano 6cu+ 26.5 40.3 55.3 58.6 84.4 carbon 1 loud med

17 JMC Products 400023 23.1 44.5 65.2 55.3 85.2 Chomerics T725 1 low easy

18 Sibak AT01515B 23.0 45.1 64.6 60.1 95.2 none 2 med stiff

50W 50W 100W 100W

Initial performance results are not placing the Sibak AE01625B quite as high as other sibak heatsinks have landed themselves. This is due to the type of heatsink, and the lack of any copper inserts for the most part. The AE01625B improves on at least one of the heatsinks we have tested from Sibak - the Twinhead AT01515B.

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 Arkua 6228 18.8 18.2 35.0 38.4

3 Sibak AC02625B 18.1 35.8 20.0 41.5

4 Swiftech MCXC370 16.9 22.0 32.1 44.3

5 Vantec CCK-6027D 18.0 22.2 37.5 46.0

6 Tocools Crown 15.6 30.0 24.7 47.0

7 Dynatron DY1206BH-625 16.8 31.9 24.4 47.2

8 NengTyi XPC5000 22.6 25.2 45.2 52.2

9 Swiftech MCX370 19.7 23.8 38.0 53.3

10 Zalman CNPS6000-Cu 21.6 29.0 40.8 53.4

11 Taisol CGK760092 19.3 37.8 27.9 54.1

12 AVC 112AM1 21.8 28.1 45.3 54.8

13 GlacialTech Igloo 2310 21.4 43.2 30.2 57.3

14 Sibak AE01625B 17.3 30.9 33.6 57.5

15 Thermaltake Volcano 6cu+ 13.8 28.8 32.1 57.9

16 Zalman CNPS6000AlCu 23.4 31.4 47.3 61.1

17 JMC Products 400023 21.3 42.0 32.1 62.0

18 Sibak AT01515B 22.1 41.6 37.1 72.2

50W 50W 100W 100W

Well the Sibak AE01625B manages to move up at least one position, and with it gain a position which signifies it as an average OEM heatsink. This is not a bad thing by any means, but rather tells us we should look elsewhere for high-end performance systems which are overclocked. As far as any typical system will be concerned, the Sibak heatsink will offer decent cooling for the price.

The high-power fan on this heatsink really doesn't seem to be used in the best of heatsink extrusions, but perhaps this design is just been optimized for too many different processors. Since the base is just about 8mm thick the heatsink would be a good candidate for the Penitum 4 processors; though this heatsink is not compatible. Often a manufacturer will take one extrusion heatsink design and simply cut it in different ways so it will fit on a Pentium 4 platform or a socket A platform. In any event, the Sibak AE01625B is a average OEM level heatsink.

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