Arctic Cooling 8L and 12L Cooling Fans

A Closer Look

Page <script type="text/javascript" src=""></script> Posted 20/09/2006
Author: Matthew Fogg (PV5150)
Hardware Acquired: Arctic Cooling

A Closer Look

AC 'L' series fan AC 'L' series cable sleeving

One thing that I've really come to expect of Arctic Cooling and their range of products, is their attention to detail and level of finish. Again, they have delivered and failed to disappoint. The 'L' series of fan is sleek, unobtrusive and totally classy. Significant changes to mainstream fan design have been implimented by the manufacturer, and it certainly shows. The first area of change being that the fans have been manufactured using plastic reinforced fibreglass, in order to eliminate humming caused by the high frequency vibrations of the fan blades. Arctic Cooling, in the included product sheet state that:

"Vibrations generated by the running fan are absorbed by a patented vibration dampener (Bi-axle rubber elements). Thanks to the unique patented fan support which omits lateral frame, turbulence inside the air intake current is reduced, leading to a lower and significantly more comfortable audible envoironment."

Further, it's a nice change to see fan manufacturers covering unsightly wiring with cable sleeving and heatshrink wrap. Nice touch Arctic Cooling !

Vibration dampening mounts Looking for thermal Control

In the above left picture you can clearly see the rubber mounts that Arctic Cooling have employed to minimise fan vibration. This rubber mounting system, in the opinion of the author is a far more effective method of controlling extraneous fan vibration than using the rubber grommets included by some case manufacturers. The reason being simply because of longevity and cost effectiveness. The rubber grommets are certainly an effective way of controlling vibration, but if for whatever reason should you need to remove the fan, it's almost guaranteed that they'll break during removal.

Whilst having a bit of a prod around the 'L' series fans, I started looking to see whether there was actually any 'thermal control' facility. Apart from removing the sticker and looking for a heat sensor where the wires connect to the fan's pcb, the fan is a sealed unit. I was unable to determine whether the fans are able to be thermally controlled at this stage, we'll have to wait for the testing page to see if they can or not.

AC's patented Fluid Dynamic Bearing

In order to help alleviate premature failure, Arctic Cooling have taken to including Fluid Dynamic Bearings (FDB) in the new Arctic Fan L series. The FDB style of bearing has a longer lifespan and provides an quieter/cooler operating environment than typical ball bearing type fans. This is why Arctic Cooling are able to provide an extremely impressive 400,000 hours Mean Time To Failure (MTTF) rate and an inclusive 6 year warranty. I have included a small picture from Arctic Cooling's website illustrating the principal behind FDB bearings. (Accessed 12th September 2006)

Side view of 'L' series fans showing optimised blades

Another area where Arctic Cooling have further improved the silent cooling features of the 'L' series is by optimising the fan blades themselves, in order to achieve larger airflow and higher static pressure, whilst keeping the fan noise to a minimum. The slightly reduced speed of the fan as opposed to the current linep of Arctic fans also assists in significantly reducing low level noise. Now that we've had a look at the main features of the new Arctic fan 'L' series, let's see if they live up to the silent disposition for which they were designed.

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Most Recent Comments

25-08-2006, 20:12:10

Although I think it IS about time the industry moved onto a 64bit OS properley, this is pretty stupid Quote

25-08-2006, 20:17:06

Not that I endorse piracy, but this bully boy tactic of forcing people to adopt to DRM measures is tiring to say the least Quote

26-08-2006, 06:24:57

wrong to force people to a certain os but doubt it will take long before thirdparty software comes out that can bypass this problem.Quote

26-08-2006, 06:34:20

This is ridiculous... Why have it work in the 64 bit version and not the 32? That's absolutely whack.Quote

26-08-2006, 06:35:47

Originally Posted by name='Raven'
but doubt it will take long before thirdparty software comes out that can bypass this problem
Yeah it's pretty well a guaranteed certainty. Quote

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