VoidedWarranty.com has posted two quick articles today.

HSF Preventative Maintenance

Have you looked inside your computer lately? Have you checked the CPU temperature lately? If your HSF fan guard has an accumulation of dust on it, chances are that it is a lot worse under the fan. With the higher speed CPU's, adequate cooling of the processor is manditory to prevent premature failure.

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Changing PSU Fan with Tri-LED Fan