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Cooljag Falcon 92-Cu Heatsink Review
Cooljag Falcon 92-Cu Heatsink Review
  86%   
Abstract: Cooljag's Falcon 92-Cu is built with four 6mm diameter copper heatpipes that conduct heat from the copper plate up through to the array of stacked copper fins above.

 Company link  Category  Published  Author 
Cooljag   Cooling / Heatsinks   May 17, 2007   Max Page  
Home > Reviews > Page Title: Intel 775 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)

Thermalright Ultra 120 17.8 10.6 53.7
Zalman CNPS9700 LED high 19.0 10.4

56.5

Thermalright Ultra-90 high 19.6 13.0 56.2
Enzotech Ultra-X high 20.0 8.5 59.1
Apack Zerotherm BTF90 21.8 12.7 52.1
Apack Zerotherm BTF80 22.8 13.9 51.9
Cooljag Falcon 92-AL high 23.2 14.2 52.1
Cooljag Falcon 92-Cu high 23.6 14.8 52.8
Akasa AK-920 high 24.3 14.1 52.9
Akasa AK-922 (EVObue) high 25.5 15.4 60.3
Cooljag Falcon 92-Cu low 27.7 18.4 30.9
Thermalfly F1-IACSHA high 29.0 18.3 60.4
Thermalfly I75DUB high 29.5

16.8

68.5
Zalman CNPS9500 AT 29.6 17.3 53.3
Alpha Novatech PRE9060M92Phigh 29.9 18.5 51.5
Akasa AK-961 30.018.7

60.7

Rosewill RCX-Z2-EX high 30.118.7 45.9
nPowertek NPH-775-1 30.1 18.850.1
Sunon Waturbo 30.6 18.357.5
Apack CF800 high 31.4 20.7 48.4
Thermaltake Jungle512 high 31.6 20.4 60.8
Xigmatek AIO-S80DP high 32.4 21.4 55.0
Rosewill RCX-Z2

32.6

19.3 59.9
Zalman CNPS7700-Cu high 32.9 19.7 50.7
Apack CF900 high 32.9 20.3 48.3
Evercool PT02-9232CP 33.3 19.9 63.3
Zalman CNPS7700-Cu LED high 33.5 20.6 49.8
Intel Stock Pentium D high 33.8 20.7 47.5
nPowerTek SF775-2 high 34.7 21.1 64.6
Akasa AK-960E 36.1 21.4 56.3
Thermalfly I75DUH 37.8 22.8 48.7
Cooljag OAK-H high 38.5 22.9 55.7
Cooljag OAK-H2 high 38.6 24.1 55.6
LS Cable SHS-T700 38.7 22.8 48.5
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.

Intel processors vary widely in heat output between single and multi-core processors, so we rely on two values which represent the upper limit of both existing CPU families to test thermal solutions. With a 150W heat load applied by the Intel LGA775 version of FrostyTech's synthetic thermal test platform, the Cooljag Falcon 92-Cu heatsink maintains a temperature of just 23.6°C over ambient (with 52.8dBA noise).

For a heatsink made entirely of copper, these results are not significantly different than the all aluminum version Frostytech also tested.

While the results are very good in their own right, if the base of the Falcon 92-Cu heatsink Frostytech received for testing was flatter, you can pretty much guarantee the thermal test results would have been better too. In a sense, while Cooljag does succeed with great results here, it also partially fails to realize the full potential of this design.

When the speed of the 92mm PWM fan speed is reduced to 1200RPM the sound output falls to 30.9 dBA, and the heatsink maintains a 27.7°C rise over ambient.

The Cooljag Falcon 92-Cu heatsink was also tested with an 85W heat load. In this case it held steady with a low 14.8°C temperature over ambient at full fan speed. As fan speed was reduced to 1200RPM, the Falcon 92-Cu maintained a rise above ambient temperature of 18.4°C.

When the Cooljag Falcon 92-Cu heatsink fan is running at full tilt, it's clear that this is an excellent heatsink for LGA775 Intel and K8 AMD processor platforms. Taking into consideration the concerns about base flatness we've already discussed I think this heatsink could have performed better. Yet as it stands, we witnessed no significant differences in the end result between this unit and the Falcon 92-AL.

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 Previous Page °
Heat Sink Review Index  

Table of Contents:

 1:  Cooljag Falcon 92-Cu Heatsink Review
 2:  360° View - Cooljag Falcon 92-Cu Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4:  AMD K8 Heatsink Temperature Comparisons
 5: — Intel 775 Heatsink Temperature Comparisons

List all Cooljag heat sinks that Frostytech tested?

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