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Verax Helado PWM-T Low Noise Heatsink Review
Verax Helado PWM-T Low Noise Heatsink Review
  82%   
Abstract: The Verax Helado PWM-T heatsink is the newest uber-quiet heatsink from the German manufacturer Verax Ventilatoren GmbH. A couple other insightful thermal design aspects come into play to create a nice low noise thermal solution.

 Manufacturer  Category  Published  Author 
Verax   Cooling / Heatsinks   Jul 25, 2006   Max Page  

Home > Reviews > Page: 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
Apack Zerotherm BTF90 20.5 52.1
Coolermaster Hyper6 high 20.5 54.7
Apack Zerotherm BTF80 21.3 51.9
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
Verax Helado 24.3 36.3
AVC Z7U3301001 (stock 939) high 24.6 59.9
Zalman CNPS8000 high 24.8 57.4
Gigabyte 3D Cooler-Ultra high 24.8 63.0
OCZ Tempest 26.0 51.6
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
Verax Quattro 1 high 30.7 55.4
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
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.

With a 125W heat load applied by the FrostyTech synthetic thermal test platform, the Verax Helado PWM-T heatsink performed admirably while remaining whisper quiet under power. The Helado PWM-T posted a rise above ambient temperature of 24.3°C, with 36.3 dBA noise generated at its stock fan speed setting.

However, since we were unable to force the fan into full-speed mode by shorting out the on board thermistor, what the exact RPM of the 92mm fan was during this thermal test remains a somewhat ambiguous point...

Generally in the open air synthetic tests that FrostyTech conducts, the internal fan thermistor rarely kicks in to augment a thermally controlled fans' speed. So considering this, we're going to assume that the fan speed was on the order of 1100RPM; but I'm not completely certain that is accurate.

The mounting clips for LGA775 processors offer a no-fuss means of installing the Helado PWM-T heatsink onto the motherboard. On the other hand, the K8 mounting clip is slightly underwhelming in this application.

Designed to be used between the fins of an extruded heatsink, the thin (0.7mm) sheet metal visibly twisted as the Helado PWM-T was being installed onto the K8 heatsink retention frame. Verax would be well advised to rethink the K8 mounting clip, or at the very least use one made from thicker metal that doesn't start to twist out of shape when the cam lever is engaged, and force applied.

The K8 mounting clip is both socket AM2 and socket 939 compatible.

In any case, that the Verax Helado PWM-T heatsink managed a thermal result of this class (24.3°C RAAT) while producing less than 40 dBA, is the most remarkable point to take away from all of this commentary.

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...

- Apack ZeroTherm BTF80 Heatsink Review
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- Verax Quattro 1 Ultra-Quiet Heatsink Review
- AVC Z7U7414001 Athlon64 Socket AM2 / 939 Heatsink Review
- Cooljag SFO-Q Socket AM2 / 939 Heatsink Review
- Zalman CNPS9500-AM2 Socket AM2 Low Noise Heatsink
- nPowertek TTIC NPH K8-1 Heatsink Review
- Spire VertiCool II SP601B3 AMD Athlon64 Heatsink
- Scythe Samurai SCSM-1000 Heatsink Review
- Gigabyte 3D Rocket Cooler-Pro PCU22-VG Heatsink Review
- Scythe Shogun Low Noise Heatsink Review

 Previous Page ° Heat Sink Review Index  

Table of Contents:

 1:  Verax Helado PWM-T Low Noise Heatsink Review
 2:  360° View - Verax Helado PWM-T Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4: — Final Heatsink Temperature Comparisons

List all Verax heat sinks that Frostytech tested?

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