I did a quick search and couldn't find anything specifically to what I had questions about. The hard drive in my ancient MBP was starting to click so I opted to buy a new HDD. I choose a 7200RPM seagate 500GB drive and I am having issues. I can hear it spin up, but it is not seen when I try to install OSX. Do these old MBP have limitations on the maximum HDD that can be installed?