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Zalman CNPS6000Cu HSF Review

By: Mike Wright | CPU Air Coolers in Cases, Cooling & PSU | Posted: Feb 8, 2002 5:00 am
TweakTown Rating: 8.5%Manufacturer: Zalman

About the Heatsink



I normally don't have a section about the cooler like this, but I felt it was warranted due to the unique nature of this little beast.


To start off with, let's first take a look at the name of the cooler itself. While the 6000Cu is nothing more than a model number (and of course the Cu designating a copper unit), the CNPS portion deserves a little explanation. It stands for Computer Noise Prevention System, and is aimed at those who are tired of excessive noise from their processor cooling setup.


Also of note is the fact that the fan used for cooling this unit is not attached to the heatsink during operation. We'll cover the exact layout a little later, but to give you an idea, it is mounted to a bracket that sits above the sink without actually being in contact with it. Sounds rather intriguing, doesn't it?


The Heatsink



Probably the first thing you ask when looking at the sink is "What the Hell?"


Perfectly understandable, I assure you. The heatsink design is called the "Flower Heatsink", and is constructed of numerous copper fins that are affixed to a base of copper and aluminum. We have discussed before the fact that the greater the surface area and mass, then the greater the cooling potential. The cooling surface area is figured at between 2600 - 2900 square centimeters, and the weight is a very hefty 462 grams. It is obvious that we are starting off with a very solid contender for cooling prowess here.


Measurements of this behemoth are 100mm x 63mm x 65mm, but the main width is not close to the base. This will allow you to mount the sink on motherboards with small work areas around the socket since the dimensions are still small toward the base of the unit.


The Base



The base of this unit is a mixture of copper and aluminum. The aluminum is used as a means to enlarge the base, but doesn't make contact with the processor core at all. All contact points are copper, so will ensure the maximum amount of cooling possible for this cooler.


As seen in the picture above (sorry for the quality), the base is very smooth, and polished for a very clean contact with the core. Though the Zalman folks added a large portion of thermal compound, our testing will be done using the Arctic Silver II for the sake of consistency in out testing.


Installation of Sink



The clip used to install the sink is also not attached to the unit. It simply slides down through the center of the heatsink, and is then attached to the rear lug. Notice the hole on the front of the clip (right side of clip in above picture)? That is for a special installation tool that allows you to have the heatsink firmly seated on the core before applying any pressure to the clipping mechanism. It is basically just a long handle that fits the hole on the clip. With a little downward pressure, it slides over the front lug and firmly attaches the heatsink to the processor.


All in all, it was a very simple procedure to install.


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