External Iomega 500GB drive dead. Help?

Iomega Iomega dell exclusive - 500gb ego...
August 31, 2010 at 08:41:50
Specs: Windows XP
The Iomega external 500GB USB 2.0 drives have a known issue wherein the seagate/hitachi drives stop working properly. The most common symptom is that your computer (XP, Vista) no longer sees the drive letter. Iomega will tell you it's a power source issue, but in most of the cases that is not true. I've gone through all the suggested steps. (Changed the power cord, device mgmt, different power source, different cables, etc.) The drive lights up but never shows up in my computer.

I don't want to go a data recovery specialist and spend big money. Has anyone has success changing the enclosure. It sounds simple enough, but if anyone has a procedure/process or some quick tips...much appreciated.

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August 31, 2010 at 08:57:29
Your problems can happen with any external drive.

There's probably nothing wrong with the external enclosure, unless you've dropped it, or similar.

Troubleshooting USB device problems including for flash drives, external drives, memory cards.
See Response 1:

Check that out first.

Rarely, not all the ports on the back of a desktop case may be able to supply 500ma each.

If you have a desktop computer, Note that I answered a Topic on this site recently where a guy had an external drive, which does require the full 500ma, connected to a port on the back of a desktop case - it would not work properly when a webcam was in the port next to it, but it worked fine when the webcam was unplugged. Ports on the back of a desktop case often have two ports connected to the same USB controller module that are ports one above the other - you could try connecting the cable to one of those and leaving the other un-used.

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August 31, 2010 at 10:54:21
Thanks for that note. It's don't believe it's a USB, IRQ, or power supply issue. The external drive isn't recognized on either my XP desktop OR Vista laptop. Both my desktop and laptop recognize all my other USB devices. I've checked and changed all the USB wires as well. Additionally, Iomega was kind enough to send me a new power cord, but that made no difference as far as the drive mounting. I've tried from both independent outlets and power strips. Nada. Neither computer will recognize the drive--I never even get the sound that a USB device is input. The drive does light up and you can hear it spin...but neither computer ever finds it. About 2 weeks ago, the drive was working perfectly.

Just searching around the internet, Iomega drives not mounting seems like this a fairly common problem. I just haven't seen a lot of solutions. Although I don't have any experience at it, I have no problem taking this thing apart. I just don't want to make it any worse. Someone suggested I take it apart and plug it into the motherboard as a second drive. Again, would like to try easiest solutions first if any one has one.

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September 3, 2010 at 07:41:14
Did you READ and check out EVERYTHING at the link I pointed in response #1, and at the links pointed to at that link ??

Your problems are very common.
If you had a different brand and or model of external hard drive, if you searched on the web for mentions of problems with those, you WILL find the same types of problems for those too.

You could buy yourself a new external enclosure for starting at about $30 for a 2.5" hard drive, or for starting at about $40 for a 3.5" hard drive, BUT

- there's probably nothing wrong with the external enclosure you have now, unless you have dropped it or have similarly exposed it to a physical event

- there's probably nothing wrong with the hard drive inside the external enclosure, unless you have dropped the external enclosure, or the hard drive when it wasn't in it, or have similarly exposed it to a physical event.
You can test the hard drive itself , regardless of whether you can presently access the data on it in My Computer or Windows Explorer
- when it's in the external enclosure , if the external enclosure circuits are being detected correctly (see next) . E.g. Seagate's Windows version of SeaTools will test any brand of hard drive.
- when the hard drive has been removed and connected properly internally to a desktop or laptop computer , by using bootable hard drive diagnostics - e.g. Seagate's bootable versions of SeaTools will test any brand of hard drive. (DO NOT boot from your hard drive on a different computer - usually the XP OS on it will NOT load normally in that case.)

- you STILL must be plugging it into (a) USB port(s) that can supply 500ma and that also work(s) properly with the drive AND the USB cable(s) you use must be adequate. If it's a 3.5" external drive, you MUST plug the external power adapter that came with it into the external enclosure. In some cases, you may need to use TWO USB connections on the computer end with a 2.5" external drive, or one USB connection and an external power adapter plugged into the external enclosure.

If all of those things are sufficient...........
- when you plug in or unplug the USB cable, when your sound is on so you can hear it, you will hear the sound for plugging in or unplugging a USB device (similar to dong ding, ding dong) .
-- the external drive's internal hard drive model will show up in Device Manager under Disk drives, and the external enclosure will show up there under USB controllers as a Mass Storage device .

- you may STILL not be able to see the data on the hard drive in My Computer or Windows Explorer, on ANY computer, if the data on the hard drive is damaged - the most common cause of that is unplugging the external hard drive when Windows is running without clicking on the Safely Remove Hardware icon in your taskbar and choosing to STOP accessing the drive, BEFORE you unplug it - usually that data damage can be easily fixed by using a program that can repair the damage and you will then be able to see it there.

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