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Year by year notebook computers are replacing usual desktop PCs at work and at home. Notebooks are small and handy, but they are also much more fragile than desktops. For a number of reasons notebook hard drives are even less reliable than those of desktops. These reasons are:
Shaking. Various jolts and shakings happen frequently during notebook transportation and active work. This expedites deterioration of the mechanical parts of a hard drive.
Insufficient power supply. When powered by the battery, the notebook hard drive might not get sufficient power because of excessive battery load. In this case the hard drive will not be able to maintain constant rotation speed which increases the probability of information loss.
High temperature. Heat emission of components of modern notebooks may reach 100 watts. And all those components are located in a small area with weak cooling. In such a harsh environment hard drive temperature is often close to or even exceeds the maximum allowed value (55°C (131°F) for most hard drives). This negatively affects both mechanical (thermal expansion of the platters) and electronic (overheating and possible failure of the controller) parts of a hard drive.
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