Does anyone know how to do this? Is it possible via a utility (can't find one online), or the jumpers on the rear of the drive (H200 SSHD). There is no legend for the jumpers or manual available.

I have a late 2008 Macbook Pro, which is currently fitted with the original hard drive (a SATA 1.5gbps drive).

I want to use a new Toshiba H200 SSHD - they problem is that the drive declares SATA 3gbps support, as does the chipset, so it negotiates the link; however the Macbook sometimes fails to detect the drive on power-on (undoubtedly due to the marginal custom cable Apple had made).

I can't find a utility anwhere to change the drive to have a lower max speed, though I've seen them for Seagate and Hitachi drives. Any help much appreciated!