Intel P55, P57 don’t have SATA 3 support
Fudzilla: "We looked a bit deeper in Intel’s plans for Clarkdale and Lynnfield CPUs and it turns out that its new 5th generation mainstream chipsets won’t feature support for SATA 6Gb/s. Both P55, that comes in Q3 2009, and P57 that comes in Q1 2010 and has better support for 32nm CPU with IGP Clarksdale, won’t support SATA 3."
