1 TB External WD Drive Not Showing Up In Finder/Disk Utility/Terminal

Hey everyone,
First time posting here so forgive any mistakes. I recently purchased a Late 2013 Macbook Pro Retina, 15-inch, 2.6 GHz Intel Core i7 from Apple. Previously, I had the late 2007 Macbook Pro model until a friend spilled some water on it and corrupted the motherboard. Regardless, I was using a Western Digital 1 TB external hard-drive to keep all my documents and files backed up, manually, alongside the time machine feature built in. (This was not connected at the time of the spill, and was not thereafter, so rule out water damage) During the period between when the old one died, (earlier this year May-2013), I kept the drive safely in storage because I knew I would want to transfer my 100gb music librairy along with my photos and other files when I finally got the new one later that year (was waiting for the hardwell processors to come out for the MBP). Just recently after this purchase I tried to connect the drive to my new MacBook Pro but it was not showing up. I have scowered the online forums for trouble shooting tips and took all the steps to no avail. I have replaced the data-drive cable with a new one, connected it to the wall outlet in case it wasn't drawing enough power from the laptop, among a few other simple tricks, but still it would not show up in either Disk Utility or the terminal command to show all active drives, all that's there is the internal Macintosh HD one. It was a fairly quiet drive-however I do notice there is not much of a 'spin-up' noise or any sound of it begining to work when turned on or plugged in, so I'm worried there might be something wrong with the drive itself. Nonetheless, the power signal continues to flash but still no recognition from the computer that it's there, so I'm certain it's not reading it. I have tried on my other buddys Mac and it is the same situation, as well as my roommates PC (which I figured wouldnt anyway because of how its formatted, but it was worth a shot) I am not sure which avenue to take next as I have all my files and college work that I still need access to on the drive, and would really hate to have to format the drive or anything drastic as such. Possibly there is a part I can buy and replace myself to make it start up and spin again, but I am not sure what that part could be or if there is an easier solution out there.
I would greatly appreciate any information or help on this problem, thank you all for the time and advie.

Clicking from a hard drive is bad. Does the external drive have an external power supply? If it does I would use this supply.

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