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Seagate ST90000U2 60GB

There are two USB (turquoise and blue) on a split from the external hard drive.  Which do I plug into my computer USB or does it make a difference?  I cannot find my manual and have not used this in a very long time.  Thank you for your help.

P. Diller

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The green is a data/power cable that can be used by itself if your USB port can provide enough power to power the drive. If the one port does not provide enough power by itself, you can plug in the blue connector as well to provide additional power for the drive.

Posted on Nov 05, 2007

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There should only be one but either should work. Sounds like you have two separate external hard drives. There may be a port for USB and one for Firewire if you have it.

Posted on Oct 29, 2007


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The blue light keeps flashing on and off on my Seagate 4Tb XHD. It won't show up on the finder as connected. What causes that?

follow these steps:
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These hard drives can be used to house large files or even to backup an entire hard drive.

When your Seagate external hard drive is not working properly, you might ready to send it into the company for repair.

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Disconnect all of the USB devices that are plugged into your computer's USB ports except for your mouse and your keyboard.

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Unplug the power cable from the back of the Seagate external hard drive and restart your computer.

Wait until your computer has fully booted and then plug the power cable back into the hard drive.

Look over the USB data cable to make sure that there are breaks or tears in the cable.

Look over the ends of the cable where they meet the computer and the hard drive.

Make sure the pins are straight.

Replace the cable if needed.

Plug the data cable into the back of the hard drive.

Plug the data cable into your computer.

Hope this helps.

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Comment back if this doesn't fix the issue.

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