A Closer look

Everything on the CNPS9900 LED (apart from the fan and its connectors) is made of pure copper. The three heatpipes, array of fins and base of the cooler are all copper. The copper colour of the cooler certainly looks appealing, epsecially with a blue LED fan between the two arrays of fins. The three heat pipes run all the way around the block of fins to make it seem as though there are six pipes. These pipes are split into two pipes for one array of fins and one pipe for the second array.


The cooler has a 4-pin PWM fan connector. This ensures silent operation when the temperature of the CPU are low, yet high performance when the temperature of the CPU rises. This fan control is all done automatically and the user does not have to worry about installing software or having to control the fan themselves.


There are two blocks of fins on the CNPS9900 LED. Each fin is made entirely of copper and is only 0.2 mm thin. Such thin individual fins means a lighter CPU cooler as well as the ability to put more fins within the same area. Having these extra fins allows for better heat dissipation as the heat can spread faster and more evenly among the heatsink.


As previously mentioned, the heat pipes are made entirely out of copper. There are only three heat pipes on the entire cooler yet it looks like there are six, as each pipe runs up the cooler, around the array of fins and then straight back into the base. As shown in the images, there are two pipes that run around one side of the fins and only one pipe that runs around the other side. The fan blows cool air onto the side where there are two heat pipes running thorugh the fins, which is logical as there would be more heat on that side (as two copper pipes would attract more heat than one). Each pipe is capped off on the base of the cooler.


The base of the CNPS9900 LED, like nearly everything else, is made of pure copper. The heat pipes run throughout the whole base to absorb and transfer as much heat as possible. Zalman have not attached any installation mechanisms to the base of the cooler so the user does not have to remove any clips, they simply have to add the included clips to match the socket their computer uses. The base is also highly reflective, as shown with the “screw” test.