SATA terminology



Are the terms SATA II, SATA 3Gb/s and SATA 300 synonymous?
If I install a HDD with one of these designations on an Intel D945PSLKR MoBo (BIOS Intel Corp. SN94510J,86A.0096.2006.0822.1131,8/22/2006) should I set the SATA mode in the BIOS to AHCI?
The options are: IDE, AHCI and RAID; I will not be using a RAID configuration.

TIA,
JDShine
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