External Hard Drive disconnects when I pick it up from idle.

It started doing this recently. I'm guessing its a power issue, I recently had my logic board replaced but I narrowed down the symtom.
When I connect my external hard drive, it works fine. No problem, I pick it up, move it all around, jiggle the wire, nothing.
But when it is idle, then I suddenly pick it up, it suddenly disconects ONLY from idle.
I used different wires, even replaced the HD case, gives me all the same problem.
It never did it before, it only started happening in the past 2 months.
I have to DJ with this laptop and hard drive so I cant be continuing to have this issue.

Sounds like a good plan, you can never be to safe and having a second External HD is safer than one.
The only thing that I would do different, is setup the 3T as my TimeMachine Backup and then erase and move my Photos, Videos and perhaps even iTunes Media to the 1T. That way you will have room to backup both the Internal Hard Drive and the 1T External Hard Drive to the 3T using TimeMachine.
Take your time, study and use the > Time Machine - Frequently Asked Questions if you get stuck or aren't sure how to make the move.
Also see > iPhoto: How to move the Library folder to a new location
iMovie ’08: Storing or moving your video library to an external hard disk
and > iTunes for Mac: Moving your iTunes Media folder

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External Hard Drive disconnects when I pick it up from idle.

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