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I will be discussing the three best solutions which I always use myself to lower excessive vibrations of case fans, and the ways anybody can lower their decibel levels.

Most reports will tell you how vibrations work, and how the noise is caused. This article is different, there isn't any computer language here that isn't easily understood.

Case fans mounted to your case will make the metal material of your computer vibrate. If you've ever tried holding a powered case fan, you'll know that it's almost silent.

If you've seen any of my previous articles, you should know that I like keeping my noise levels in my computer as low as possible. A huge factor for unneeded noise are the case fans. There are a few ways I will share which I use to solve this problem.

I have put together three of the most important techniques which I use to cut down on my case fan noise.

1.) Case Fan Silica Gel - Using Ultra-light silica gel will create a slight barrier between your case fan and your computers case. Doing this will cut down on some vibrations.

2.) Fan Speed - Reducing the speed of your case fan will significantly decrease the amount of vibration. To do this, you will need to purchase a fan controller. A fan controller can be found in a computer store or an online store for about $15 dollars.

3.) Case metal thickening - You can reduce vibrations by thickening your cases metal that your fans are mounted to. The metal will be less flexible after doing this, and will become more sturdy. This will stop noise from reverberating throughout the case.

By following all three of these solutions, a significant drop in noise level for your case fans should be noticed. There are however more strategies for making your fans quieter if vibrations aren't your problem.

Other techniques involve decreasing the amount of turbulence made by the case fans. You can produce steady airflow with the replacement of certain cables, moving your fans, and taking off the grills of fans.

Aaron Brandon is a contributing author. He is considered an expert in the field of building quiet computers. For more information, you can visit http://www.build-quiet-pc.com

Despite penetration levels exceeding 100% of the population, Australia's mobile market recoded stronger-than-expected growth in 2007, thanks largely to the substantial 3G progresses made by all four carriers, notably Telstra's Next G. The industry remained one of the very few segments driving the country's telecom connectivity market.

The mobile market was arguably the most exciting, innovative and competitive segment, with important milestones continued to be made last year: the introduction of flat mobile data charges, debut of 3.5G networks across the country, and the introduction of prepaid and MVNO 3G offerings.

Sydney-based telecom market research consultancy Telsyte concludes that Australia had 21.8 million mobile users at year-end 2007, a 104% penetration level and year-on-year growth of nearly 6%. 3G subscribers more than doubled in the past 12 months to constitute 31% of the total user base, while the industry's non-voice revenue mix climbed to 27%. Within the non-voice segment, although SMS still reigned supreme, much of the growth was derived from paid content and mobile broadband.

Australia's 2G mobile era is coming to an end, with revenue from 3G predicted to overtake 2G in 2008, while 3G users will outnumber their 2G counterparts by mid-2009. Telsyte predicts that churn management and customer poaching will intensify, with tactics and incentives, such as exclusive deals with other popular consumer brands and referral programs, becoming common in the next 18 months.

Looking ahead, 3G users are expected to make up nearly 70% of the market in five years' time, whereas non-voice revenue contribution will grow from one-third in 2008 to almost one-half in 2012.

The battle between 3G-based mobile broadband and WiMAX-based wireless broadband in the Australian marklet has been won hands-down in favour of the former. That victory was cemented by the Federal Government's recent cancellation of OPEL's WiMAX contract. Mobile broadband users outstripped wireless broadband users by more than five-to-one by the end of 2007, and that gap is expected to grow dramatically in the next five years.

This year will be yet another eventful year for Australia's mobile industry. Network upgrades by Australian mobile carriers are on-track, with two new nation-wide HSPA networks based on the 900 MHz spectrum expected in 2008. In the next two years, the industry will evolve to HSPA+ and LTE, capable of delivering speeds of up to 100 Mbps.

Other key developments expected in 2008 include the rise of mobile advertising in the consumer market, a burst of enthusiasm in smart phones due to the pent-up anticipation around Apple's iPhone launch, and the introduction of fixed-mobile convergence offerings.

About the Author

Warren Chaisatien is Principal Analyst at Telsyte (http://www.telsyte.com.au), an Australian-based market research and consultancy specialised in the competitive intelligence of the converged communications market. Telsyte's expertise is centred around the three core competency areas of Carrier & Broadband, Mobile & Wireless, and Enterprise Communications. Telsyte provides industry insights through custom research and consulting as well as ongoing research, including market reports and online databases.