The heatsink on this unit is an all-copper model. Copper has been proven to be a superior material to use when manufacturing sinks due to the better heat conductivity it provides over aluminum. The CUD-725CA features a standard sized base that blossoms to a total dimension of 70mm x 70mm x 40mm. The wider top allows for the use of a larger fan that should be able to keep a reasonable level of cooling while producing less noise. It also allows for this to happen without the use of an airflow reducer. We'll see in a bit how successful this idea is.
Something else of note in the design of this cooler is the fact that they have added some small copper pieces between the fins. Looking at the construction, it appears that they were added more for the mass value than for sturdiness. With the copper spacers in place, the entire unit weighs in at a largish 422 grams. It has already been established many times that mass aids in the cooling process, so we'll have to see whether or not this helps or hinders.
The base of the unit is absolutely flawless when it comes to being smooth. This is because of the base being planed flat and then having some sort of a protective coating added to it. While this isn't as good a procedure as actually lapping the sink, it has shown to still be very effective on other coolers that I have tested in the past.
The fan is a model that is manufactured by Evercool themselves. As mentioned earlier, it is larger than normal, measuring in at a hefty 70mm x 70mm x 25mm. It spins at only 3800RPM and emits an ear pleasing 30dBA. Airflow is rated at 38-CFM, so is comparable to the Delta fans. This is a huge benefit if you fall into the category of those tired of the loud noises common to the high-speed 60mm fans on the market.
Most remember that I am a stickler for the addition of a fan grill. You will be happy to note that the CUD-725CA comes with one already in place. This is doubly beneficial since the odd fan size would probably require a special order of one if it were missing.
One thing that would have been nice would have been the addition of a 4-pin Molex converter for the fan. It uses the standard 3-pin variety that hooks into the motherboard, but the power draw on this fan is getting close to the limit of what I would feel comfortable plugging into the board's header.
When I first saw the clipping mechanism on this unit I nearly had flashbacks. I hounded a similar clip terribly in the Evercool Shootout because it took entirely too much force and effort to get it engaged. A tight clip is fine, but too tight will cause damage to the processor core.
But fortunately, my fears were quickly vanquished when I went to install this one. The torque of the spring has been adjusted down to a very reasonable level, and the small protrusion for the screwdriver blade was actually helpful when it came time to pull out the bottom of the clip slightly. It then slid effortlessly over the lug of the socket and kept the sink stable and unmoving. Very nice adjustments Evercool!
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