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Cooljag SFO-Q Socket AM2 / 939 Heatsink Review
Cooljag SFO-Q Socket AM2 / 939 Heatsink Review
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Abstract: The Cooljag SFO-Q heatsink relies upon a set of 6mm diameter copper heatpipes that connect the copper base to the aluminum fins.

 Company link  Category  Published  Author 
CoolJag   Cooling / Heatsinks   May 29, 2006   Max Page  
Home > Reviews > Page Title: Final Heatsink Temperature Comparisons

FrostyTech.com Mk.II Synthetic Thermal Heatsink Test Results
Results based on readings from a 38x38mm copper interface die with 125W heat load on the Mk.II Test Platform. Thermal Test values for each heatsink were calculated by determining the rise over ambient temperature at time of test. Information on Frostytech's test methodology is available here.
Socket 939/940/754 compatible CPU heatsinks
Manufacturer: Model No.: *Fan Speed: 125W Thermal Test (°C) Noise Level (dBA)

AVC Z7U7414001 (stock AM2) high 17.0 63.0
Noctua NH-U12 17.5 45.4
Gigabyte G-Power Pro high 18.6 71.9
Noctua NH-U9 18.8 58.4
Coolermaster Hyper6 high 20.5 54.7
Thermaltake Venus 12 high 21.7 68.1
Cooljag SFO-Q high 22.2 60.6
ASUS Starice high 22.8 67.4
Zalman CNPS9500 AM2 high 23.0 53.2
Arctic Cooling Freezer 64 Pro 23.2 50.9
Coolermaster Aquagate Mini high 23.2 59.2
Thermaltake Polo 735 high 23.4 68.0
Cooljag SFO-H high 23.6 60.6
Alpha PAL-8150 23.7 58.9
Zalman CNPS9500 LED high 23.8 50.3
AVC Z7U3301001 (stock 939) high 24.6 59.9
Gigabyte 3D Cooler-Ultra high 24.8 63.0
Scythe Shogun high 26.0 45.9
EKL V8 high 26.3 57.5
Gigabyte 3D Rocket-Pro high 26.9 56.7
Gigabyte 3D Cooler-Pro high 27.0 62.5
Spire SP601B3 28.3 48.9
Ajigo MF064-074 high 28.8 60.3
Gigabyte 3D-Rocket 28.9 50.7
Vantec Mach1 high 29.2 56.9
CoolJag SFO-D(18SC) 29.6 64.0
Arctic Cooling Alpine 64 30.5 43.9
Zalman CNPS7000A-Cu high 30.3 45.2
Dynatron SK-V24 30.3 56.4
Zalman CNPS7000-Cu high 31.0 45.2
Coolermaster Hyper48 31.7 43.6
Scythe Kama SCKK1000 31.9 47.5
Scythe Samurai SCSM1000 high 32.1 51.6
Zalman CNPS7000B-CU high 32.3 44.9
Thermaltake Silentboost K8 32.3 49.7
Jetart JAX801 33.2 53.5
Dynatron A22 34.5 44.5
nPowertek NPH K8-1 34.6 52.2
Ajigo MF043-044 (stock 754) 35.0 45.4
Cooljag SFO-Q low 36.5 47.4
Verax Quattro 1 36.9 30.9
Arctic Cooling Silencer 64 Ultra TC 37.5 55.5
Gigabyte NeonCooler 8-BL 37.7 42.0
Titan TTC-K8ATB/825/SC 38.7 63.1
Evercool K802-715 42.1 51.5
Spire SP741B3 43.2

45.6

Evercool Magic Cooler 46.6 55.5
ASUS Starice low 92.4+ 34.4
125W Thermal Test (°C) Noise Level (dBA)
*Heatsinks are ranked according to the 125W 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.

The FrostyTech Mk.II thermal test platform stresses both socket 939 and socket AM2 class K8 heatsinks with 125W of heat, and once equilibrium is reached we note the rise in temperature (2nd column from the right) above that of the ambient temp. So in effect what we're doing is leveling the playing field and allowing comparisons between each heatsink in this reference list.

The Cooljag SFO-Q socket AM2 / 939 produces an excellent rise above ambient temperature at the fastest fan speed of 22.2°C, with just 60.6 dBA noise. When the Cooljag SFO-Q's fan speed drops to 2800RPM, the socket AM2 heatsink posts results about 14°C warmer.

At its quietest fan speed setting, the SFO-Q has a rise above ambient temperature result of 36.5°C, with 47.4 dBA noise - nice!

At its highest fan speed of 5000RPM, the Cooljag SFO-Q is an excellent heatsink although it is far too loud. Given that there is no direct way a user can influence the speed of the fan, it is unlikely that the Cooljag SFO-Q will operate in this mode very often. However, should case temperatures rise, it is comforting to know the heatsink has the capabilities of reducing temperatures substantially.

At its lowest fan speed, this heatsink is not nearly as good as the Zalman CNPS9500 AM2 or AVC Z7U7414001 heatsinks - both of which are fully AM2 compatible. At reduced fan speeds the AVC model produces about the same degree of noise, but the Zalman CNPS9500 AM2 is much quieter.

Bottom line, as a workstation or 3U server heatsink the Cooljag SFO-Q is a capable unit that excels when temperatures rise and an automatic response is desired. In this respect the heatsink is an "install it, and forget it" kind of cooler. It will do the job, but when it comes to low noise applications there are more suitable heatsinks for the socket AM2 platform to choose from.

Related Articles:

For more reviews on the latest heatsinks and cooling solutions, rely on FrostyTech's inventory of 350+ heatsink reviews. Here are a few other articles that you might enjoy as well...

1. Zalman CNPS9500-AM2 Socket AM2 Low Noise Heatsink Review
2. AVC Z7U7414001 Athlon64 Socket AM2 / 939 Heatsink Review
3. Scythe Shogun Low Noise Heatsink Review
4. Arctic Cooling Freezer 64 Pro Athlon64 Heatsink Review
5. Arctic Cooling Silencer 64 Ultra TC Athlon64 Heatsink
6. Spire VertiCool II SP601B3 AMD Athlon64 Heatsink
7. Arctic Cooling Alpine 64 Heatsink Review
8. Noctua NH-U9 Low Noise Heatsink Review
9. nPowertek TTIC NPH K8-1 Heatsink Review



 Previous Page °
Heat Sink Review Index  

Table of Contents:

 1:  Cooljag SFO-Q Socket AM2 / 939 Heatsink Review
 2:  360° View - Cooljag SFO-Q Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4: — Final Heatsink Temperature Comparisons

List all CoolJag heat sinks that Frostytech tested?

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