A recent analysis Gartner reported on the reliability of computer hardware, and finds that the failure rate decreases but the manufacturers still need to improve.
The analysis is based on the average annual rate of outages and found that during the last three years it has decreased by 25% for both desktop computers for laptops. The bad news is that this rate remains around 15 to 22%.
Figures refer to materials acquired in 2003-2004 and 2005-2006. They speak for themselves:
- for landline rate of failures in the first year from 7 to 5%, and 15 to 12% the fourth year;
- for notebooks, the failure rate is increased from 20 to 15% the first year, and 28 to 22% the third year.
Why do we see more failures on laptops?
Basically because the demand for machinery and small light causes a decrease in overall stiffness. In addition, compression of the components in a confined space causes a higher temperature can be harmful to electronic components. Finally, users carry their computer in hand, in transport, in terms of comfort variable, which exposes the material to various risks such as temprature, vibration, dust.
What components are most at risk?
For positions fixed, these are the motherboards and hard drives. The lip seal of motherboards are more frequent because of the increasing integration of components on a single card. Even modem or network interfaces are no longer independent and need, in case of failure, a replacement card complete database.
On laptops, the screen has long been the main source of failure. Over time, manufacturers are vastly improved equipment design, and the screens are not as sensitive as in the past. The causes of failures on these devices are, in descending order, motherboards and hard (as in fixed phones) but also the elements of chassis (including closing mechanisms, feet, hinges, housings), keyboards and monitors.
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gentlemen builders, even a small effort!
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