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MacBook Pro Newbie Concerns
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<blockquote data-quote="Big-Foot" data-source="post: 551677" data-attributes="member: 40607"><p>That's the $10,000 question...</p><p></p><p>You indicate that you are very careful with your equipment and obviously that will play a large role in the longevity of your hard drive et al.. </p><p></p><p>In the business of disk drive repair we found that fully 75% of all the failures were electronic in nature. Many electronic failures were caused by surges. Some by overheating. Power surges are minimized in most disk drives by the motherboard maintaining a small amount of current flow through the logic board even when shut down.</p><p></p><p>Of the HDA (Head Disk Assembly) failures - most were caused by abuse or overheating but some were caused by media failures that were noted as Stiction (Static Friction) where the head's air-bearing would get stuck to the platter. These drives would not spin back up as the head was bonded to the platter. These failures were caused typically by over-lubrication of the platter. It's not seen much any more.</p><p></p><p></p><p>With LapTop / Notebook drives, there are more HDA related failures due to people thinking that they can knock the machine about or carry it while running and plunk it on someone's desk... While the drives do not typically crash immediately when this happens the air-bearings and media get damaged a little more each time. Finally there are bad sectors in the media, the air-bearing has too many chips in it or landing scars in the surface and will no longer fly correctly - ultimately the drive will fail and typically at the worse time with a lot of data that is not backed up...</p><p>The other dilema that LapTop and Notebook drives suffer is overheating due to the machines being used on a soft surface that blocks airflow. Thank God for manufacturers that have temperature sensing technology on-board that can shut the machines down during periods like this. Still - too many HI-TEMP events will add up in how much damage is done..</p><p></p><p>So - the moral of the story is to take care of your equipment and it will typically take care of you. Also, never - ever turn your machine off with data on it that is not backed up..</p><p></p><p>I hope this helps someone someday..</p></blockquote><p></p>
[QUOTE="Big-Foot, post: 551677, member: 40607"] That's the $10,000 question... You indicate that you are very careful with your equipment and obviously that will play a large role in the longevity of your hard drive et al.. In the business of disk drive repair we found that fully 75% of all the failures were electronic in nature. Many electronic failures were caused by surges. Some by overheating. Power surges are minimized in most disk drives by the motherboard maintaining a small amount of current flow through the logic board even when shut down. Of the HDA (Head Disk Assembly) failures - most were caused by abuse or overheating but some were caused by media failures that were noted as Stiction (Static Friction) where the head's air-bearing would get stuck to the platter. These drives would not spin back up as the head was bonded to the platter. These failures were caused typically by over-lubrication of the platter. It's not seen much any more. With LapTop / Notebook drives, there are more HDA related failures due to people thinking that they can knock the machine about or carry it while running and plunk it on someone's desk... While the drives do not typically crash immediately when this happens the air-bearings and media get damaged a little more each time. Finally there are bad sectors in the media, the air-bearing has too many chips in it or landing scars in the surface and will no longer fly correctly - ultimately the drive will fail and typically at the worse time with a lot of data that is not backed up... The other dilema that LapTop and Notebook drives suffer is overheating due to the machines being used on a soft surface that blocks airflow. Thank God for manufacturers that have temperature sensing technology on-board that can shut the machines down during periods like this. Still - too many HI-TEMP events will add up in how much damage is done.. So - the moral of the story is to take care of your equipment and it will typically take care of you. Also, never - ever turn your machine off with data on it that is not backed up.. I hope this helps someone someday.. [/QUOTE]
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