Mobo:GA-MA785GT-UD3H (rev. 1.0) and HDD-Sata3:WD10EARX Issue

My PC:
Model Name : GA-MA785GT-UD3H(rev. 1.0)
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M/B Rev : 1.0
BIOS Ver : F8
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VGA Brand : PowerColor Model : HD5770
CPU Brand : AMD Model : Phenom II x4 Speed : 2800
Operation System : Win 7 32-bit SP1
Memory Brand : Type : DDR3
Memory Size : 2x1GB Speed : 1600
Power Supply : 660 W

Hi all,

I've just installed new HDD-Sata3-6Gb/s-Buffer:64Mb(WD10EARX, 1TB). The Bios just recognize my new HDD 1.5Gb/s(Capabilities) while setting RAID.

This is a picture of Gigabyte manual, and the description-part is my problem.


I tried on jumper setting of my new Sata3-HDD(WD) to set it down with 3Gb/s but the Bios just recognized 1.5Gb/s, too.

I used the other official SATA cable. No change.

And my older HHD-Sata2-3Gb/s-Buffer:16Mb(SeaGate, 320Gb) still recognize this HDD-SeaGate 3.0Gb/s(Capabilities) while setting RAID.


I've bench my new HDD Sata 3 with HD Tune Pro.


It seems so-so performance. I thought our Bios could not recognize new-kind Sata3 or the mobo's south-chipset SB 710 could not recognize Sata3?



Could you please make a discussion for this my issue?

Thanks
Regard.