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Apple Computing Products:
macOS - Desktop Hardware
Energy Saver - Computer Sleep
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<blockquote data-quote="chscag" data-source="post: 1598056" data-attributes="member: 46727"><p>Well, we've eliminated software and any errors with your user account. That really leaves us with hardware as probably the culprit. And.. since your iMac will sleep when booted from an external drive, that leaves the internal hard drive.</p><p></p><p>Here's what I now suspect: You state that you have 60 GB remaining of a 320 GB hard drive, but in all likelihood the free space that remains is probably fragmented. In other words, the 60 GB is not a continuous 60 GB. That forces swapping which means your hard drive is always busy doing something. it's probably time for a new hard drive which is not an easy do it yourself task as with a MacBook or MacBook Pro.</p><p></p><p>A little info about swapping: When you put your machine to sleep, it has to create an image of the current state of the hard drive such as programs running, desktop, icons, folders, and so forth. It needs to do that so when it wakes up you're back in business. You can see by this that if not enough continuous space exists for that image, your iMac is going to be pressed to find the space and will flounder around instead of sleeping.</p></blockquote><p></p>
[QUOTE="chscag, post: 1598056, member: 46727"] Well, we've eliminated software and any errors with your user account. That really leaves us with hardware as probably the culprit. And.. since your iMac will sleep when booted from an external drive, that leaves the internal hard drive. Here's what I now suspect: You state that you have 60 GB remaining of a 320 GB hard drive, but in all likelihood the free space that remains is probably fragmented. In other words, the 60 GB is not a continuous 60 GB. That forces swapping which means your hard drive is always busy doing something. it's probably time for a new hard drive which is not an easy do it yourself task as with a MacBook or MacBook Pro. A little info about swapping: When you put your machine to sleep, it has to create an image of the current state of the hard drive such as programs running, desktop, icons, folders, and so forth. It needs to do that so when it wakes up you're back in business. You can see by this that if not enough continuous space exists for that image, your iMac is going to be pressed to find the space and will flounder around instead of sleeping. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Energy Saver - Computer Sleep
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