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Overall, the heatsink includes 54 plates, each 0.35-0.4 mm thick that alternate with 1.8 mm gaps:

 

The sides of the heatsink aren’t covered. There I a small aluminum heatsink at the bottom of the cooler, right above the heatpipes.

Another technology utilized in the new Scythe Yasya is called “Unparallel Six Heatpipe Construction”. It implies that the heatpipes are laid out non-linearly inside the heatsink body:

We are also already familiar with the staggered-order heatpipe layout, as other cooler manufacturers use it in their products, too. It allows to distribute the heat more evenly over the heatsink body, speed up the heat transfer and increase the cooler efficiency.

The base of Scythe Yasya cooler is covered with a plastic film that needs to be removed before installation:

Once the film has been removed, you see a very even base with ideally polished surface:

Even the thermal compound imprint left by our processor with a protuberant heat-spreader (we are going to talk more about it a little later in our review) turned out quite OK:

The only remark we have about the base of Scythe Yasya cooler, is that the heatpipes are slightly flattened and soldered to the 2 mm base plate instead of being placed into the grooves.

Scythe Yasya is equipped with one Slip Stream 120 Adjustable PWM (SY1225SL12HPVC) fan:

We are already very well familiar with this model, but now it supports PWM control and comes with a regulator on a bracket for the case rear panel, which can set the maximum fan rotation speed:

According to the specifications, the fan supports the following operational intervals: 470(±30%)–1.340(±10%) and 740(±25%)–1.900(±10%). The claimed airflow is 23.0-76.53 and 37.15-110.31 CFM, and the noise is at 7.05-27.3 and 9.8-37.0 dBA respectively. The actual fan impeller is 112 mm in diameter, and its rotor is 35 mm in diameter. It comes with a 300 mm cable and a 300 mm cable leading to the rotation speed regulator.

The fan is attached to the heatsink using two enclosed wire clips and contacts directly with the plates without any shock-absorbing strips or the like:

It is strange to find only two clips among the bundled accessories, because the symmetrical Yasya cooler can easily accommodate two fans. So why did Scythe decide to save on the wire clips?

The new Scythe Yasya cooler is compatible with all contemporary home PC platforms without exceptions. The cooler is installed onto the CPU and the mainboard without any additional tools and without removing the mainboard from the system case. You need to insert a pair of retention brackets into the sides of the additional heatsink above the base. After that these retention brackets will simply catch on to the plastic frame around the CPU socket on AMD platforms, or will be locked by applying serious pressure from the top on Intel platforms:

 

The distance from the lower heatsink plate to the cooler base is 35.5 mm, which – with the height of the CPU socket – is quite enough to ensure Yasya’s compatibility with the heatsinks over the mainboard voltage regulator components.

There is no mention of the preferable cooler positioning anywhere in the manual or on the package that is why we decided to check out its efficiency in two positions:

 

After a few test cycles it turned out that when Scythe Yasya is installed with its heatpipes going across the processor heat-spreader (the photo on the right), the peak core temperature is stably 3-4°C lower than in case the cooler is installed with the heatpipes along the heat-spreader. We believe that the cooling efficiency of six-core processors depends on the way the heatpipes are positioned in respect to their heat-spreader. Especially, since this statement didn’t get confirmed only on one cooler out of six products tested within this session. But, let’s not get ahead of ourselves here.

In conclusion to our Scythe Yasya coverage we have to add that its recommended retail price is $57 and it comes with a one-year warranty.

 
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