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Zalman CNPS9500-AM2 Socket AM2 Low Noise Heatsink Review
Zalman CNPS9500-AM2 Socket AM2 Low Noise Heatsink Review
  94%   
Abstract: The CNPS9500 AM2 heatsink is identical in materials and size to previous CNPS9500-series heatsinks, but since this cooler is being launched in conjunction with the nVidia nForce 500-series chipset and socket AM2 Athlon64, it has received a few special touches.

 Company link  Category  Published  Author 
Zalman   Cooling / Heatsinks   May 23, 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
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
Zalman CNPS9500 AM2 low 29.2 36.0
Vantec Mach1 high 29.2 56.9
AVC Z7U7414001 (stock AM2) low 29.6 48.1
CoolJag SFO-D(18SC) 29.6 64.0
Zalman CNPS9500 LED low 29.7 36.2
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
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

Zalman CNPS7000B-CU low 44.9 33.2
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.

With a 125W heat load applied by the FrostyTech synthetic thermal test platform, the Zalman CNPS9500 AM2 heatsink yields a very nice rise above ambient temperature at the slowest fan speed of 29.2°C, with just 36.0 dBA noise. When the CNPS9500 AM2's fan speed is increased from 1350RPM to 2600RPM, the socket AM2 heatsink posts much cooler temperatures. The full speed test produces about 53.2 dBA noise, but the rise above ambient temperature result drops to just 23.0°C - very nice indeed!

If we examine the thermal test results for the Zalman CNPS9500 AM2 heatsink we can see that the best results are obtained by running its fan at slightly less than full fan speed. The large drop in noise output from the fan speed reduction only translates into a temperature increase of about 6°C. For most computer users, that's an easy trade off to make.

The only other heatsink in the reference list that comes close in terms of thermal performance to the Zalman CNPS9500 AM2's thermal performance / noise level ratio is the Zalman CNPS9500 LED... and that's because it's an identical model save for the shinny chrome plating and green fan lights.

While about half the reference heatsinks tested above will be socket AM2 compatible, the AVC Z7U7414001 is the one cooler AMD supplied with official socket AM2 reference systems. This Asia Vital Components (AVC) heatsink was also used with dual core Athlon64 FX processors, as it relies upon the center-tab clips of both socket 754/939/940 and socket AM2 heatsink retention frames.

The Zalman CNPS9500 AM2 heatsink compares well to the AVC Z7U7414001 where quiet is concerned, and the AVC Z7U7414001 triumphs where sheer cooling ability is the deciding factor.

As a heatsink, the Zalman CNPS9500 AM2 functions best as a low noise cooler. With that translucent 92mm fan glowing green and spinning at 1350RPM, the heatsink maintains good temperatures and excellent noise levels. At full fan-speed, the CNPS9500 AM2 heatsink handles the heat very well, while maintaining an acceptable degree of noise. With the introduction of AMD socket AM2 Athlon64 processors, the K8 heatsink field just got a little complicated - the Zalman CNPS9500 AM2 is a great place to begin.

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. Gigabyte 3D Rocket Cooler-Pro PCU22-VG Heatsink Review
2. Spire VertiCool II SP601B3 AMD Athlon64 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:  Zalman CNPS9500-AM2 Socket AM2 Low Noise Heatsink Review
 2:  AMD Athlon64 Socket AM2 Heatsink Considerations
 3:  360° View - Zalman CNPS9500 AM2 Low Noise Heatsink
 4:  Acoustic Comparisons and Base Surface Quality
 5: — Final Heatsink Temperature Comparisons

List all Zalman heat sinks that Frostytech tested?

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