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Thermalfly F1-IACSHA Heatsink Review
Thermalfly F1-IACSHA Heatsink Review
  84%   
Abstract: Thermalfly are a new heatsink manufacturer out of Taiwan, and the company is introducing itself with a collection of fresh thermal solutions.

 Company link  Category  Published  Author 
Thermalfly   Cooling / Heatsinks   Nov 06, 2006   Max Page  
Home > Reviews > Page Title: Intel LGA775 Heatsink Temperature Comparisons

FrostyTech Mk.II Synthetic Thermal Heatsink Test Results
Intel Pentium D / Extreme Edition & Quad Core class heatsinks tested at 150W
Intel Core 2 Duo / Pentium 4 /Celeron class heatsinks tested at 85W

Results based on readings from a 30x30mm copper interface die with 150W and 85W heat loads applied on the LGA775 version of the Mk.II Test Platform. Temperature results listed for each heatsink were calculated by determining the rise over ambient temperatures at time of test. Information on Frostytech's test methodology is available here.
Socket 775 compatible CPU heatsinks
Manufacturer: Model No.: Fan Speed: 150W
Thermal Test* (°C)
85W
Thermal Test (°C)
Noise Level (dBA)

Apack Zerotherm BTF90 21.8 12.7 52.1
Apack Zerotherm BTF80 22.8 13.9 51.9
Thermalfly F1-IACSHA high 29.0 18.3 60.4
Sunon Waturbo 30.6 18.3 57.5
Zalman CNPS7700-Cu high 32.9 19.7 50.7
Thermalfly F1-IACSHA low 36.0 28.3 35.4
Zalman CNPS7700-Cu low 42.6 24.7 35.1
150W
Thermal Test (°C)
85W
Thermal Test (°C)
Noise Level (dBA)
*Heatsinks are ranked according to the 150W thermal test results column (rise over ambient temp.). Low temperatures with low noise levels are considered best. For reference heatsinks with variable-speed fans, only the high speed (12V) fan test result is included in the comparison sheet; more detailed results reside in each specific heatsink review.

With a 150W heat load applied by the Intel LGA775 version of FrostyTech's synthetic thermal test platform, the Thermalfly F1-IACSHA yields a rise above ambient temperature of 29.0°C (60.4dBA) at the fans' stock speed of 3500RPM. The CPU equivalents of this test would be an Intel Pentium D / Extreme Edition or Core 2 Quad class chip. At the much quieter fan speed of 1300RPM, temperatures rise to 36.0°C (35.4dBA) over ambient.

To measure the effectiveness of the F1-IACSHA heatsink on a Intel Core 2 Duo class processor we need to drop the heat load down to about 85W, for a worst case dual-core CPU test. With 85W heat applied the Thermalfly F1-IACSHA generates an 18.3°C rise over ambient temperature at full fan speed, and 28.3°C at its lowest fan speed.

On the Intel platform the Thermalfly F1-IACSHA demonstrates that it is well positioned as a low noise heatsink. Yet, as of this writing the list of reference Intel LGA775 heatsinks does not include the stock Intel thermal solution so it is difficult to say where the F1-IACSHA ultimately stands. Lacking that information for comparison, we'll have to reserve our comments...

Still, on the whole the Thermalfly F1-IACSHA is good heatsink at full speed on both AMD K8 and Intel LGA775 platforms. Obviously, the noise-to-temperature ratio is much nicer when fan speed is dialed all the way down. I think it's safe to say that the F1-IACSHA is great low noise thermal solution, in particular for Athlon64 processors. Only the Zalman CNPS9500 LED and Verax Helado heatsinks post better thermal results for an equivalent sound output on that processor family!

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 Previous Page °
Heat Sink Review Index  

Table of Contents:

 1:  Thermalfly F1-IACSHA Heatsink Review
 2:  360° View - Thermalfly F1-IACSHA Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4:  AMD K8 Heatsink Temperature Comparisons
 5: — Intel LGA775 Heatsink Temperature Comparisons

List all Thermalfly heat sinks that Frostytech tested?

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