I have a HP Pavilion a1110n. It came with a Samsung SP1604N hard drive. I would like to replace it with a Samsung SP1614N.They are both 160gb, I think the big difference is the SP1604N has a 2mb buffer and the SP1614N has a 8mb buffer. Will I have to change any thing in the bios or install any drivers, or will it just work? The SP1614N is used and I have no documentation. Thanks.