Hi, I answered your post in the HDD gurus but my post still being review before it show up.
Anyway, I sees you have 2 options.
It is either you hunt back the exact same bridge board that you threw away, or you initialized the disk (not recommended) which will then wipe everything inside and you will have to use data recovery software to recover what you had.
This link will be useful if you want to search / buy for a new bridge board: http://www.harddrivesforsale.com/4061-705089-001-wd-controller-board.html
Hope this helps!
