On my p8p67 deluxe, all of the SATA II ports are Intel. I have 4x Intel Sata II 3GBps, 2x Intel SATA III 6GBps, and 2x Marvell SATA III 6GBps.
Unless you're talking about the eSATA port(s) on the back? At any rate, be sure, before you lose data on your SATA II ports.