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Mean Time To Failure on Mac book
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Junior Member
Join Date: May 2005
Status:
Offline
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Hi,
Is it bad to have the mac switched on all day? Or should I buy a desktop for that?
I am concerned that the mac I have is being used twenty hours a day and might get tired and stop working?
What do people think?
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Junior Member
Join Date: Oct 2007
Status:
Offline
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I wouldn't worry much. I keep my mac on all day and the only time it shuts down is when I need it to for an update.ß
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Moderator 
Join Date: Dec 2000
Location: Polwaristan
Status:
Offline
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Mac Elite
Join Date: Jan 2002
Location: Live at the BBQ
Status:
Offline
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I have an old titanium powerbook from 2001 that has been on nearly every day, all day since it arrived at my doorstep. It still runs perfectly.
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"Bill Gates can't guarantee Windows... how can you guarantee my safety?"
-John Crichton
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Moderator 
Join Date: May 2001
Location: Hilbert space
Status:
Online
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Please refrain from cross-posting and make sure you create threads in the correct forum.
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I don't suffer from insanity, I enjoy every minute of it.
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Senior User
Join Date: Mar 2005
Location: Nevada (Not Las Vegas)
Status:
Offline
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Mine is pretty much on all day, being used for about 8 - 10 hours and in sleep mode the rest. The only time I restart is when it is running sluggish. It doesn't really even get turned off at all.
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27" iMac C2D
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Junior Member
Join Date: May 2005
Status:
Offline
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The fans on my mac book re on all day - I use Parralells and Safari and the CPU is > 60%
Is this a problem?
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
Status:
Offline
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It's fine to have a MacBook on all day... the shortest lived component should be the hard drive. Laptop hard drives have a service life of about 5 years, 20k power on hours, or 600k load/unload cycles, whichever comes first.
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Administrator 
Join Date: Apr 2001
Location: San Antonio TX USA
Status:
Offline
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I leave my iMac "on" most of the time; it uses something like less than one watt more electricity while asleep than while "off." MacBooks and MBPs are similarly miserly with electricity while plugged in. Check out the details here for your particular computer. As long as the machine is plugged in, there's no problem in letting it sit idle and go to sleep. If it's not plugged in, it'll shut down (hard) when the battery gets to a certain, very low level. It will NOT "wear out" through being on continuously, though it will use energy to no purpose if it's on and not asleep while you're not using it.
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Glenn -----
OTR/L, MOT, Tx
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