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Mac Pro doesn't "see" external drive anymore - Help!!!
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Dedicated MacNNer
Join Date: Aug 2004
Location: Phoenix
Status:
Offline
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My desktop all of a sudden does not see my external drive anymore when I go to backup my computer. Does anyone know what's wrong and how I can fix this?
Thank,
Lee
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2 X 2.8 Ghz Quad-Core Intel Xeon 4.5GB RAM, 30" Cinema Display
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Moderator  Join Date: Aug 2001
Location: Nobletucky
Status:
Offline
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Have you tried launching Disk Utility? That will usually force an external drive to appear on the Desktop.
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Posting Junkie
Join Date: Mar 2004
Location: UK
Status:
Offline
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Unless you upgraded to Lion or Mountain Lion in which case drives do not show up on the desktop by default. You can change that in the Finder preferences.
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I have plenty of more important things to do, if only I could bring myself to do them....
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Dedicated MacNNer
Join Date: Aug 2004
Location: Phoenix
Status:
Offline
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I am running 10.7.4. Disk utility didn't work. I'm not real computer literate. How do I find Finder preferences?
Thanks
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2 X 2.8 Ghz Quad-Core Intel Xeon 4.5GB RAM, 30" Cinema Display
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Moderator Join Date: Aug 2001
Location: Nobletucky
Status:
Offline
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Click on the desktop.
Upper-left of the screen...Click on Finder.
Scroll down to Preferences.
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Dedicated MacNNer
Join Date: Aug 2004
Location: Phoenix
Status:
Offline
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The show "external hard disks" was already selected. Before I moved the computer to another room (which is when this problem started) the external backup disk was showing on my desktop. Now it's not if that helps solve this problem. I hate to think that the external disk is already bad. It's less than a year old.
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2 X 2.8 Ghz Quad-Core Intel Xeon 4.5GB RAM, 30" Cinema Display
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Posting Junkie
Join Date: Mar 2004
Location: UK
Status:
Offline
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You can check to see if there is any sign of it under Disk Utility (In Applications -> Utilities), if not click the Apple menu and choose about this Mac, then click more info and then choose system profile. The disk should be listed under USB or firewire depending how it connects.
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I have plenty of more important things to do, if only I could bring myself to do them....
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Dedicated MacNNer
Join Date: Aug 2004
Location: Phoenix
Status:
Offline
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I did not see a "system profile." My options were, Overview, Display, Storage andMemory. My external disk was not shown under Storage.
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2 X 2.8 Ghz Quad-Core Intel Xeon 4.5GB RAM, 30" Cinema Display
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Moderator Join Date: Aug 2001
Location: Nobletucky
Status:
Offline
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What sort of connection is the external drive using? It could be a bad port or cable.
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Moderator Join Date: Apr 2000
Location: Gothenburg, Sweden
Status:
Offline
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Originally Posted by Lee33 
I did not see a "system profile." My options were, Overview, Display, Storage andMemory. My external disk was not shown under Storage.
What version of the OS are you using?
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The new Mac Pro has up to 30 MB of cache inside the processor itself. That's more than the HD in my first Mac. Somehow I'm still running out of space.
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Dedicated MacNNer
Join Date: Aug 2004
Location: Phoenix
Status:
Offline
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2 X 2.8 Ghz Quad-Core Intel Xeon 4.5GB RAM, 30" Cinema Display
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Dedicated MacNNer
Join Date: Aug 2004
Location: Phoenix
Status:
Offline
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I give up. Thanks for all your help everyone. Drives are cheap and I need to back-up my computer. It's been over two weeks and if this thing fails I'm in trouble. I'm just going to get a new HD.
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2 X 2.8 Ghz Quad-Core Intel Xeon 4.5GB RAM, 30" Cinema Display
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Posting Junkie
Join Date: Mar 2004
Location: UK
Status:
Offline
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Sorry, its "System Report" now, not System Profile.
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I have plenty of more important things to do, if only I could bring myself to do them....
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Baninated
Join Date: Mar 2012
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Offline
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Make sure it's plugged in to a wall outlet.
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Moderator Join Date: Jun 2000
Location: inside 128, north of 90
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actually the bad cable idea has merit. If it worked, you moved the computer and reset up in another room, maybe everything did not get plugged in all the way, or a port is bad. Does the hard drive light up? Do you have another computer to plug it into?
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