Hey all. I am trying to change out my hard drive on my macbook pro A1278. I replaced it with a 500gb WD blue. When I installed the hard drive and ran macosx install disc, then went to disk utility, the hard drive does not even show up. I also tried running diskutil list in a command line and that showed no results as well. When I plug in my old corrupt hard drive it shows up in disk utility. However this new one does not. Also I tried plugging in another hard drive that I had partitioned with a windows computer and that did not show up as well. Only the one that came with the computer. I have no clue what to do. Any help would be awesome. Thank you guys in advanced.