To save you trouble of grabbing the manual here are some relevant pages:
(41) Serial ATA Supported (For AK89 Max Only, With RAID Function)
The traditional parallel ATA specification has defined the standard storage interface for PCs with its original speed of just 3 Mbytes/second since the protocol was introduced in the 1980s. And the latest generation of the interface, Ultra ATA-133, has been developed further with a burst data transfer rate of 133 Mbytes/second. However, while ATA has enjoyed an illustrious track record, the specification is now showing its age and imposes some serious design issues on today’s developers, including a 5-volt signaling requirement, high pin count, and serious cabling headaches. The Serial ATA specification is designed to overcome these design limitations while enabling the storage interface to scale with the growing media rate demands of PC platforms. Serial ATA is to replace parallel ATA with the compatibility with existing operating systems and drivers, adding performance headroom for years to come. It reduces voltage and pins count requirements and can be implemented with thin and easy to route cables.
(42) Connecting Serial ATA Disk
To connect a Serial ATA disk, you have to have a 7-pin Serial ATA cable. Connect two ends of the Serial ATA cable to the Serial ATA header on the motherboard and the disk. Like every other traditional disk, you also have to connect a power cable. Please note that it is a jumper free implement; you don’t need to set jumpers to define a master or slave disk. When connecting two Serial ATA disks, the system will automatically take the one connected to “Serial ATA 1” header as a master disk.
(43) Adjusting Your Hard Disk
Except its original 2 sets of parallel IDE, this motherboard does come with the support for the latest Serial ATA hard disk. If you are unable to find your newly installed Serial ATA hard disks on your operating system after you have had installed them on, the problem mainly lies in the BIOS setting. You may simply adjust BIOS settings to have them work properly. After having properly installed your hard disks, you may directly get into the BIOS setting screen for adjustment. You may simply press “Integrated Peripherals ?? IDE Function Setup ?? Silicon SATA” to either enable or disable SATA interface.