Gigabyte GA-P55A-UD4 Marvell 9128 SATA III

Hey Folks,
I want to update the firmware of the Marvell 9128 SATA-Controller on my new Mainboard to support SATA III and possibly AHCI.
The performance of the Samsung 840 Pro SSD on the onchip SATA II is much better than on the Marvell!
I don't want to buy a new mainboard or a PCIex-controller to get everything working at an average expected speed.

original BIOS F15:
http://download.gigabyte.us/FileList/BIO...d4_f15.exe

updated BIOS F15 by DMAN999:
http://www.mediafire.com/download/0ppe54..._RT258.rar

updated BIOS F15 by Dansolo:
http://www.bios-mods.com/forum/attachment.php?aid=2896