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Globalwin CPS25603-16 Heatsink Review
Globalwin CPS25603-16 Heatsink Review
  62%   
Abstract: Choosing an OEM class heatsink means you get an inexpensive heatsink with questionable performance characteristics.

 Manufacturer  Category  Published  Author 
Globalwin   Cooling / Heatsinks   Apr 30, 2001   Max Page  

Home > Reviews > Page: The CPS25603-16 from several angles:

Globalwin have always been good about sticking large and well performing fans on their heatsinks. The increased airflow over the many aluminum fins of a heatsink can often make up for less than efficient extrusion designs.

This fan is unique in that it is one of the only 23mm thick fans we've ever seen. On the downside the 33mm diameter fan motor creates a large deadspot over the center of the heatsink.

As with most OEM class heatsinks, the extrusion is cross cut to improve surface area as much as possible. In this case you'll notice that the clip cutout is off center slightly.

The cross cuts are 2.5mm wide, and the fins taper from about 2mm to 1.5mm. While it is difficult to see from this angle, each of the fins has a serrated surface to increase turbulence, and thusly heat removal.

It is always a bit funny to see a heatsink with a fan about the same size. In this case the heatsink is 25mm tall, and the fan 23mm.

Looking at the base, which is 4mm thick you'll notice a small edge sticking out. To fit this heatsink on a FC-PGA PIII we had to remove that edge, as it stuck out too far for the heatsink to seat properly.

The opposite side of the Globalwin best illustrates the slight offset of the clip in relation to the rest of the heatsink. The clip has a large thumb lever which makes installing the heatsink easy and quick.

The base of the CPS25603-16 is less than great. Rather than a natural extrusion finish, or a milled base, Globalwin have used a very rough brushed surface. The surface really requires the use of a thermal pad, or a generous amount of thermal compound.

Surface flatness was fairly good, but surface finish is quite poor.

FrostyTech Synthetic Temperature Test Platform:

The FrostyTech Synthetic Temperature Test Platform consists of an aluminum block heated by a 120V 250 Ohm precision resistor producing 50W of heat. That heat is transmitted to the heatsink via the aluminum block and up through special copper die templates with thermistors embedded directly in them.

A temperature reading for a particular heatsink is taken once the temperature stabilizes in the copper die template. Since each of the die templates have the surface area of either a silicon topped or heatspreader-topped processor the flow of heat to the base of the heatsink accurately mimics a real life configuration.

Shown with the copper die template for a silicon-topped processor, the synthetic heatsink test apparatus awaits a coating of silver-based thermal compound and the Globalwin CPS25603-16 heatsink. A slightly larger copper die template was used to test the effective cooling ability of the CPS25603-16 atop a heatspreader-based processor like an overclocked PGA Celeron processor.

 Previous Page ° ° Next Page 

Table of Contents:

 1:  Globalwin CPS25603-16 Heatsink Review
 2: — The CPS25603-16 from several angles:
 3:  Final Results and Conclusion

List all Globalwin heat sinks that Frostytech tested?

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