As far as modern computers go, there really isn't anything you can do to "optimize" the performance is the BIOS. The BIOS of a computer will automatically check and configure everything as far as a single hard drive is concerned.
3Gb/s means that the HDD internal controller supports transferring data at 3 gigabits per second, hence the 3Gb/s. However, modern hard drives are actually unable to read or write at the full 3Gb/s speed. You need solid state drives to see these kind of speeds. However, that is a bit off topic.
There are, however, a few things that can be "optimized" in the operating system. Make sure that you have the most up-to-date controller card drivers. Usually, the hard drive is attached directly to the motherboard, so these drivers are from your motherboard manufacturer.
Other than that, the best way to "optimize" a hard drive is to make sure that you keep it consistently defragmented, and don't let it fill up more that 85% (or else NTFS has issues maintaining any kind of performance)
PS: I keep saying "optimize" in quotes because there really is no way to optimize a hard drive in the way that I'm thinking your thinking. Hard drives are pretty simple devices as far as the computer is concerned, and excessive tweaking really doesn't go anywhere.