Dave's 20 on... tackling a hot project

Freeman, Dave
September 2004
Portable Design;Sep2004, Vol. 10 Issue 9, p8
The article presents the author's experience when he decided to assemble a new PC for his study. The author targeted a gaming machine using the computer for games. The author had a 64-bit microprocessor, 1 Gigabyte of RAM, 5 Terabytes of storage, plus one of those double-layer DVD writers and a video card that shows everything off. After several trips to various retail outlets, the author finally got the components to work together. To be on the safe side, he had five fans mounted in the box, three bringing air in and two blowing it out. The initial fans were the 15 CFM models, and they were relatively quiet. The computer box was placed in one of those decorative cabinets that help hide the attractive case. The computer ran for about an hour before it had its first thermal shutdown. The author added that previously, fans were only found in desktops, but now it seems that they're present in nearly all-new notebook designs. It certainly helps reduce the life of notebook batteries even when they're not powering the system. According to some studies, Lilon batteries will permanently lose 30% of their rated capacity after six months at 60 degrees centigrade. With many of the notebooks spending most of their day in a docking station, this 60 degrees centigrade environment is not unlikely. The Arrhenius equation can used to predict that even at 45 degrees centigrade over six months, 25% of the rated capacity will be lost.


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