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Verax Quattro 1 Ultra-Quiet Heatsink Review
Verax Quattro 1 Ultra-Quiet Heatsink Review
Abstract: The two Verax ultra-quiet CAIRdB fans are the real selling point of the Quattro 1 heatsink however, and under power both fans generate less than 31 dbA.

 Company link  Category  Published  Author 
Verax   Cooling / Heatsinks   Jun 19, 2006   Max Page  
Home > Reviews > Page Title: 360° View - Verax Quattro 1 Ultra-Quiet Heatsink

360° View - Verax Quattro 1 Heatsink
Information on Frostytech's test methodology is available here.
The Heatsink 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 meant for overclockers - rather zero noise systems. The fan is temperature controlled to run at 1500-3600RPM (25C-50 C) depending on temperature. The fan connects to the motherboard via a 3-pin fan header which supports RPM monitoring. Note the rubber posts used to hold the fans in place.

Heatsink Top:
The top of the heatsink is essentially bare. A large aluminum fan shroud attaches to the main unit with a couple screws, the fans in turn are held in place with rubber posts. Up to four fans can technically be used with the Verax Quattro 1, though the unit only ships with two CAIRdb fans.

Heatsink Side A:
Six, 6mm copper heatpipes join the aluminum fin section with the copper base of the Verax Quattro 1 heatsink. The base is 6mm thick as well. the cooling fins are roughly 88x85x85mm in size; making for one rather big cooling unit. The whole system stands 124mm tall.

Heatsink Side B:
The aluminum fins are ~0.4mm thick and spaced 1mm apart. On two sides the edges of the fins have been scalloped, leaving the distinct impression that Verax have retrofitted an existing heatsink platform. The mounting hardware slides in over top of the copper base, and the heatsink is held down with thumb-tightened brass screws.

Heatsink Base:
The 55mm x 60mm copper base is soldered to the heatpipes so thermal conductivity is direct as could be expected. The copper has a sanded finish with a surface roughness of ~64 microinches. The base is a little wavy, but generally flat. The heatsink is not intended to be used with socket A processors, yet the base is undercut to provide relief for the socket cam arm. Curious.

From this angle the profile of the aluminum cooling fins is much more visible.

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Table of Contents:

 1:  Verax Quattro 1 Ultra-Quiet Heatsink Review
 2: — 360° View - Verax Quattro 1 Ultra-Quiet Heatsink
 3:  Surface Roughness and Acoustic Comparisons
 4:  Final Heatsink Temperature Comparisons

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