I just ordered a new hard drive for my MacBook. It's Hitachi Model # HTS541616j9sa00. When I removed the old hard drive from my Macbook I notice there's 4 male connector pins the left hand side of the drive while the New Hitachi has none. I assume that must be the optional power connector. I installed the new drive and the Macbook is not recognizing it. When I boot up all I see on the screen is a folder with a question mark. Am I getting the wrong drive? Macbook does not support SATA power connector? thanks.