Hey all. I just installed and using the new 160Gb Momentus 7200 RPM on my Macbook (white, last rev.). There is a bank of 4 pins with a jumper on it. Not much is out there on the net including the company site of what these pins do. One source said to remove it to get full throughput. I left it at factory setting. Could someone explain if this is ideal or am I missing out some speed? Honestly I can't tell a difference yet with speed vs 5400 rpm at the moment. I don't know if its a setting thing with the jumper, or I'm just not paying close enough attention to the difference.