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Arkua 628 Copper Core Heatsink Review
Arkua 628 Copper Core Heatsink Review
Abstract: This heatsink has tested extremely well, which is a bit surprising for its small size.

 Company link  Category  Published  Author 
Arkua   Cooling / Heatsinks   Apr 19, 2002   Max Page  
Home > Reviews > Page Title: Close Inspection of the heatsink

Arkua 628 From All Angles
The Fan:

The fan on the unit we tested is not made by YStech or Delta, but by a company called Everflow. We have had mixed results with this manufacturer in the past, but experienced not problems while testing the 628. The fan attaches directly to the aluminum of the heatsink and draws power from the motherboard fan header. At 20mm thick it is a bit shorter than some of the more powerful fans on the market, but at least it can be easily upgraded depending on your noise preferences.

Top: The center portion of the 628 is only has high as the central copper slug which goes all the way through to the top. A cylindrical area of 47mm in diameter and about 28mm deep has been cut out. This helps with airflow to the lower fins, and I suppose also decreases the amount of heat energy the heatsink retains. Most of all, it makes clipping the heatsink in place much easier. :)
Side B:
The clip has a small place so you can push it down and into place with no tools, but to remove it you really need a flat head screw driver. Not a big deal really. The original thermoengines has clips that would bind on the fins and were a pain to lock into place. The 628 improves significantly in this regard and is really easy to install. The base is undercut 2mm and the edges are beveled.
Side B:

The fan shroud lifts the base of the fan 4mm or so above the top of the aluminum and also centers it on the aluminum. The shroud helps to direct air down into the fins so it exits towards the base, and not just out the top. Each of the fins which is scalloped, measures 1mm thick and are spaced 2mm apart. The fin section of this heatsink is 42mm in height and the copper core 14mm tall.

Heatsink Base:

The entire base has been machined to perfect flatness, and a very smooth finish. I really wish more manufacturers would follow suit and produce heatsinks that deserve to be on top of $400 processors. The copper core is 19mm in diameter, and the aluminum around it about 23mm wide.

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Table of Contents:

 1:  Arkua 628 Copper Core Heatsink Review
 2: — Close Inspection of the heatsink
 3:  Acoustic / Thermal Heatsink Test Parameters
 4:  Thermal and Acoustic Test Results
 5:  Final results and conclusions

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Time stamped: 7:29AM, 10.23.2018
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