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Cooljag 2QC/180 1U Socket 478 Heatsink Review
Cooljag 2QC/180 1U Socket 478 Heatsink Review
Abstract: The 2QC/180 is actively cooled with a 15mm-thin squirrel cage fan that intakes air through the body of the heatsink, before exhausting it out through another set of copper fins.

 Manufacturer  Category  Published  Author 
Cooljag   Cooling / Heatsinks   Nov 13, 2004   Max Page  

Home > Reviews > Page: Examining the Heatsink
Cooljag 2QC/180 Heatsink From All Angles
The Fan:

The 60mm squirrel cage fan is small, but for the amount of space available in a 1U server it is appropriate. The fan is attached to two steel posts which hold it flush against the fan shroud. There is no space between the base of the fan and the tips of the fins, and this is important since air is drawn into the fan through the copper skived fins, before being exhausted outwards. The fan connects via a 3-pin fan header on the motherboard and supports RPM monitoring.

Heatsink Top:

With the squirrel cage fan removed we can see that the copper heatsink is skived in two parts, and each section is 37mm wide. Each of the main copper fins are 8mm tall, the outer set on either side, 23mm tall. Note the large holes in each corner used to screwing the heatsink into place on the PCB.

Side A:
The copper base of the Cooljag 2QC/180 is 3.5mm thick, giving the cooler an overall height of 27mm. The fins are spaced 1mm apart and are 0.3mm thick. This is pretty standard for skived heatsinks.

Side B:
This heatsink is very simple; but makes use of an extra set of copper fins in the path of the exhausted air from the fan.

Heatsink Base:

The base of the copper heatsink has been face milled nicely, and is very smooth, but not necessarily flat from edge-to-edge. The base is flat on the long side, but slightly concave in the other axis. The curve inward is very shallow, and won't have any major affect when installed.

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Table of Contents:

 1:  Cooljag 2QC/180 1U Socket 478 Heatsink Review
 2: — Examining the Heatsink
 3:  Heatsink Thermal/Acoustic Test Parameters
 4:  Surface Roughness Comparison
 5:  Final Heatsink Temperature Comparisons

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