hmm... I don't think it supports sata2
http://www.biostar.com.tw/products/m...%20Micro%20775
see it is mentioned nowhere.
and panacea_amc.Here are some details about sata 2
http://en.wikipedia.org/wiki/SATA_2#SATA_3.0_Gbit.2Fs
here is an extract which is most important-
The 3.0 Gbit/s specification has been very widely referred to as “Serial ATA II” (“SATA II”), contrary to the wishes of the Serial ATA standards organization that authored it. The official website notes that SATA II was in fact that organization's name at the time, the SATA 3.0 Gbit/s specification being only one of many that the former SATA II defined, and suggests that “SATA 3.0 Gbit/s” be used instead. (The Serial ATA standards organization has since changed names, and is now “The Serial ATA International Organization”, abbreviated SATA-IO.)
we commonly refer 1.5 Gbps as sata 1.
hope this clears things up