HELP. External hard drive suddenly won't show up on Mac.

So, I left for a few minutes and when I got back, there was that warning on my screen that said the disc wasn't ejected properly, etc. Which was weird because the drive was still plugged in fine. Anyway, when this happens, I usually just pull the hard drive out then plug it back in and it works fine but now it won't show up on the desktop or on the disk utility I got it to show up on disk utility once, but the subheading under the hard drive was greyed out. I could click it but when I tried to run Verify or Repair, nothing would happen. It would show up on the history as "repaired disc" but NOTHING. And I am honestly freaking out Please help, anyone

I'd have to agree with WZZZ. That sounds like either a bad connection, bad cable, or faulty supply. The port could be bad as well but the cable either being bad or not properly plugged in or maybe even worn out. When the "disk ejected" message shows up it's usually because somehow the cable was yanked out of the system while it was plugged in. Intermittenet connections in the cable, particularly in supply lines between the drive and the unit can cause this to happen as well...it's as if you unplugged the external hard drive from the system for a very short time, but the system still picks it up and sees it as bad.
If worse comes to worse, download the hard drive troubleshooting book in the downloads section at:
http://scsc-online.com

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Hi everyone,
It appears that my external hard drive that held most of my film material is messed up. It's not being recognized by my mac and the drive was really hot when I touched it.
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I hear it spinning- I think?
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External hard drive suddenly won't mount

Although I've not had a problem with this drive in the past, it all of a sudden won't mount. It has all my music on and stalled while I was using iTunes, the timer wheel came up and was still the same after 20 minutes so I closed down. Now the drive won't mount at all so I can't even try repairing the disk. I've tried swapping from firewire to USB cables and also going through a hub, neither have worked.
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There may be hardware problem with the drive. However you can try resetting the SMC. Don't be afraid to reset it 2-3x if the first time doesn't work.
SMC RESET
Shut down the computer.
Unplug the computer's power cord and all peripherals.
Press and hold the power button for 5 seconds.
Release the power button.
Attach the computers power cable.
Press the power button to turn on the computer.
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Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
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External Hard Drive Suddenly won't mount except if connected via keyboard

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One last question have you tried theMac OS X 10.4.10 Combo Update v1.1 (Intel)
Note: What’s New in this Version
The 10.4.10 Update is recommended for PowerPC and Intel-based Mac computers currently running Mac OS X Tiger. This update includes general operating system fixes, as well as specific fixes or compatibility updates for the following applications and technologies:
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thx1138b wrote:
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See also this migrate iTunes library post or Recover your iTunes library from your iPod or iOS device.
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Please Help - External Hard Drive Issue

1) Most of my music is on an external hard drive.
2) I do not always keep my external hard drive connected to my computer.
3) Recently, out of the blue, itunes started saying it couldn't find the files in library.
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dead sata bridge card. very common problem.
see all about it here:
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HELP. External hard drive suddenly won't show up on Mac.

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