The Blower

The blower is definitely a refreshing sight. With turqoise blades and a semi-transparent casing, I think it looks very cool! Very nice if you are into modding!

While I was going through the photos that I took, something caught my attention. The photos were all showing that the fan blades had very rough edges. I was puzzled so I took a closer look.

On close inspection, I found that it wasn't a camera trick at all! The blades really had rough edges caused by excess plastic that wasn't removed at the time of manufacture. Take a look at the picture on the right below. Pay close attention to the middle blade and the blade to its right.

Although the edges of the fan blades were rough, I'm not sure if they have much effect on the efficiency of the blower. Since the blades are plastic, you can easily scrape off the excess plastic with a pen knife.

How A Blower Works

Now, this review wouldn't be complete if I did not write a short explanation about the blower and why Cooler Master chose to use it. Here's how a blower is different from conventional fans.

As you can see from the diagram above, the blower's design allows for greater area of effect, compared to the normal fans. This is because the blower eliminates the 'dead-zone', which is an imaginary cone of air that is virtually motionless. This 'dead zone' is caused by the presence of the motor in the central part of normal fans.

Because only the fan blades are facing the outlet, the blower eliminates the dead zone and is thus able to push air into all areas of the heatsink. This is something that's not possible with normal fans.

In addition, blowers generally generate more air pressure than conventional fans. So, the Aero 7's blower can push more air out, compared to normal fans, with a slower fan speed. This allows for reduced acoustics.