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The hitachi 500gb usb 2.0 external hard drive. This drive will not show up on any computer that I plug it into. When i turn it on the red light comes on, but no green. my computer crashed and everything was backed up on this drive...now I can't get in this drive

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  • gordonave Apr 22, 2009

    It doesn't say what model number it is....here is what I found on the back

    PN: H3500U
    FRU: OA3342

    I tried all of the usb ports on the computer


  • Timothy Farley May 11, 2010

    Do youknow the model of the drive? i.e. Travelstar, cinemastar, Ultrastar, etc.

  • Timothy Farley May 11, 2010

    I will see what I can find.

    The usb cable that you are using, does it have an extra connector?

  • Timothy Farley May 11, 2010

    Also, what usb port are you connecting it to? Front, rear (motherboard), usb hub?

  • Timothy Farley May 11, 2010

    Hi there. Can you tell me what the model number is, please?

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Hi there.

Did you have a green light before? Hitachi external drives only use a red light.

Red light stable: Power on
Red light flashing: Data transfer in progress.

As GvvsnrNaveen said, make sure you have done a complete fresh installation of your Operating System, run Windows Update to make sure you are running the latest drivers. Then connect your drive, and see if you can see it in My Computer.

Tim

Posted on Apr 22, 2009

  • Timothy Farley Apr 22, 2009

    I can't find anything for the numbers that you have listed, all the OA numbers that I can find have 5 numbers following, not 4.

×

Assuming that you have installed a fresh windows installation after crash, you might not installed the usb drivers.

to make sure that the usb drivers are installed and correct drivers go to controlpanel->system->device manager.
and check in that no yellow icons are present in the usb.

you said that the red light is on. that is power indicator and no data transfer.

green light indicates power and data transfer is on.

check your drivers and try to update or reinstall if the drivers are already present.
CAUTION: before reinstalling or updating see that you uninstall the previous drivers.

Posted on Apr 22, 2009

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1 Answer

External hard drive not accessible


A Hitachi USB external hard drive is a device that acts as portable, removable storage for your personal computer. If you need additional space to house files on your computer but don't want to go to the trouble of installing an internal drive inside the case, a USB external hard drive is your best option. These drives are "plug and play" devices, which means that very little can actually go wrong. If you're having problems, fixing them shouldn't take more than a minute or two.

Check your connections. A USB cable needs to be connecting your Hitachi external hard drive to your computer. Your external hard drive's power cable also needs to be plugged into a functional wall outlet, surge protector, extension cord or power strip. Make sure your Hitachi USB external hard drive is turned to "On." An "On/Off" button is present on the front of the unit. If the indicator light around said button is not illuminated, the drive is "Off" and your computer won't be able to recognize it. Press it to turn it on and then try to access your drive again. Format your hard drive. If your Hitachi USB external hard drive doesn't currently have a file system on it, you won't be able to use it to store data. Open up the "Computer" icon in the "Start" menu. Right-click on your USB external hard drive's icon and click "Format." Click "Start." This will install a file system on your Hitachi USB external hard drive. After this process is finished, you will now be able to use your drive. Restart your computer. Certain models of computers (especially older models) won't recognize new hardware unless your computer boots with the hardware already connected. Leave your USB drive plugged in and restart your computer. Once you do this, your Hitachi USB external hard drive should appear as normal in the "Computer" folder with all of your other drives. Hope this helps.

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Just connect it -- it is a Plug-and-Play device, and Windows 7 supports Plug-and-Play.

Do you get any error-messages when you connect it?

Does it connect to some other computer?

Does some other USB device connect to the USB port that you're using for the Hitachi?

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If you get no joy using the Troubleshooting Guide then try this...
You will need to check You Tube to find a Dismantle on your product and follow the step guide on here, the procedure should be similar.
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My neighbour has the Seagate FreeAgent Desk 500GB, and in under 2 weeks it started to beep and was not reconized by any Laptop or P.C. if this is the same for you with any FreeAgent Desk series ( not GO series, different procedure for GO products). You maybe in luck click this link, you may have to register in the forums to view thread.... http://www.yo-lid.co.uk/forum/viewtopic.php?f=32&t=84 Thread can be found in 'Technical' under 'General Technical Issues'
Thumbs up please if it's any use to you Thank you.

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Hi there
I dont know if this will work for you but looking on the web I came accross someone who had a similar problem they fixed it as follows.
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http://www.annoyances.org/exec/show/tweakui

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