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Evercool PT02-9232CP Bifurcated Fin Heatsink
Evercool PT02-9232CP Bifurcated Fin Heatsink
  80%   
Abstract: Evercool's PT02-9232CP heatsink produces 63.3 dB noise unless there is PWM circuitry on the motherboard to rein it in.

 Company link  Category  Published  Author 
Evercool   Cooling / Heatsinks   Nov 16, 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
Zalman CNPS9500 AT 29.6 17.3 53.3
Sunon Waturbo 30.6 18.3 57.5
Zalman CNPS7700-Cu high 32.9 19.7 50.7
Evercool PT02-9232CP 33.3 19.9 63.3
Intel Stock Pentium D high 33.8 20.7 47.5
Thermalfly F1-IACSHA low 36.0 28.3 35.4
Intel Stock Pentium D low 40.3 23.9 40.5
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 Evercool PT02-9232CP heatsink yields a rise above ambient temperature of 33.3°C (63.3dBA) at the fans' very loud stock speed of 4000RPM. The CPU equivalents of this heat load would be a stressed Intel Pentium D / Extreme Edition or Core 2 Quad class chip.

Next, the Evercool PT02-9232CP was tested with an 85W heat load. This test resulted in a very good 19.9°C rise over ambient temperature at full fan speed.

Compared to the stock Intel Pentium D reference heatsink, the Evercool PT02-9232CP offers no significant advantage when running full speed ahead... Its' thermal performance is virtually identical to the Intel reference cooler, which just happens to operate ~16 dBA quieter!

To be fair, it is important to note that we were unable to reduce the units' fan speed to 1300RPM to find the lower (and quieter) limit of the PT02-9232CP's thermal performance. At the time of this writing, FrostyTech was unable to locate any reliable 4-pin PWM fan speed controllers.

Clearly, when it comes to forced airflow over elegant flow designs, the Evercool PT02-9232CP suffers greatly. While the heatsink is just as good as the stock Intel cooler, the high degree of noise is produces has all but guaranteed it a big red "satisfactory" stamp.

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- Thermalfly I75DUH Bifurcated Fin Socket 775 Heatsink Review
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- Zalman Fatal1ty FS-C77 Heatsink Review
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 Previous Page °
Heat Sink Review Index  

Table of Contents:

 1:  Evercool PT02-9232CP Bifurcated Fin Heatsink
 2:  360° View - Evercool PT02-9232CP Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4: — Intel LGA775 Heatsink Temperature Comparisons

List all Evercool heat sinks that Frostytech tested?

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