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Verax P14Cu Copper Base Heatsink Review
Verax P14Cu Copper Base Heatsink Review
  72%   
Abstract: The Verax CAIRdB thermally controlled fans are one the most unique zero-noise fans in the marketplace that we have tested.

 Company link  Category  Published  Author 
Verax   Cooling / Heatsinks   Jul 01, 2003   Max Page  
Home > Reviews > Page Title: Close up look at the heatsink

Verax P14Cu From All Angles

The Fan:

The seven bladed impeller on this 25mm thick fan creates a small amount of airflow and practically zero noise. Compared to a traditional heatsink, the CAIRdB is pretty revolutionary - but it is important to keep in mind that this heatsink is not really meant for overclockers - rather zero noise systems. The fan uses two NIRO ball bearings and is temperature controlled to run at 1000-3500RPM (20C-45C) depending on temperature. The fan connects to the motherboard via a 3-pin fan header which supports RPM monitoring.

Top: The heatsink is based on a very wide spacing of pins and uses a locking clip design to prevent shifting once installed on the processor. The extrusion is pretty simple and what makes it really interesting is that the fan attaches with not screws, but small rubber feet that lock into everything into place. The rubber mounts help to prevent vibration from moving through the heatsink and potentially causing other noises in the case.

Side A: The fins on the extrusion are all rather thick to what is the standard these days. However with the relatively low amount of air flow that comes from the fan the spacing is probably well suited. The little rubber feet which hold the fan in place lock into small circular holes in the frame of the heatsink. The aluminum base measures 4mm thick, and the copper base plate 3mm thick. The fins range from 3.75mm - 1.5mm at the tips. Fins are spaced ~3mm apart at the base.
Side B:
The side of the heatsink has an assortment of cross cuts which help to increase surface area and induce turbulence within the fin structure of the heatsink. The clip is tool based but works well. Given the overhang of the heatsink extrusion as it transitions from a base width of 64mm to 80mm make it impractical to use a thumb clip.

Heatsink Base:

The copper base has a matt finish and is slightly domed at the center. A small amount of lapping would probably further improve the performance of the entire heatsink. A square of silicon thermal compound comes pre-applied to the base of the copper.



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Table of Contents:

 1:  Verax P14Cu Copper Base Heatsink Review
 2:  What is Cold Gas Dynamic Spraying?
 3: — Close up look at the heatsink
 4:  Heatsink Thermal/Acoustic Test Parameters
 5:  Thermal And Acoustic Results
 6:  Final Temperature results

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