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Verax P16Cu Silent Pentium4 Heatsink Review
Verax P16Cu Silent Pentium4 Heatsink Review
  0%   
Abstract: Now gather round and listen closely, what do you hear? Do you hear a multitude of fans inside your computer spinning away as they stem off miniature silicon meltdowns?

 Manufacturer  Category  Published  Author 
Verax   Cooling / Heatsinks   Sep 12, 2003   Max Page  

Home > Reviews > Page: Closer Examination of the Heatsink

Verax P16Cu Heatsink From All Angles
The Fan:

The blue seven bladed impeller on this 25mm thick KP2-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 really meant for zero noise systems. The fan uses two NIRO ball bearings and is temperature controlled to run at 1400-3500RPM (20C-40C) depending on temperature. The fan connects to the motherboard via a 3-pin fan header which supports RPM monitoring.

Heatsink Top:
The heatsink is based on a very wide spacing of pins and uses four rubber anti-vibration posts mounts to hold the fan in place. The fan doesn't actually come in contact with the metal of the heatsink, and this way any vibrations which do occur are absorbed by the rubber. The four metal clips rotate freely in a space with brass bushings and are used to lock the heatsink into the m478 HSRM.

Side A:
The fins on the extrusion are all rather thick compared to 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 copper base plate measures 3mm thick and the fins range from 1.50mm - 0.8mm at the tips. Fins are spaced ~2mm apart at the base.

Side B:
The side of the heatsink has an assortment of 2mm cross cuts which help to increase surface area and induce turbulence within the fin structure of the heatsink. The clips are interesting because they rotate around and use little barbs to lock into the plastic HSRM tabs. The mechanism could use some springs to tension the clips in the right direction, and make mounting the heatsink a little easier.

Heatsink Base:

The 65x79mm copper base has a light matt finish and is very slightly domed at the center. A small amount of lapping could further improve the performance of the entire heatsink. The copper is applied to the base of the aluminum heatsink through a technology called Cold Gas Dynamic Spraying. CGDS has proven very effective at bonding dissimilar metals such as aluminum and copper. A square of white silicon thermal compound comes pre-applied to the base of the copper.

 Previous Page ° ° Next Page 

Table of Contents:

 1:  Verax P16Cu Silent Pentium4 Heatsink Review
 2:  Cold Gas Dynamics Spraying
 3: — Closer Examination of the Heatsink
 4:  Heatsink Thermal/Acoustic Test Parameters
 5:  Acoustic Samples: Listen to this Heatsink!
 6:  Final Temperature Results

List all Verax heat sinks that Frostytech tested?

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