The SATA AHCI Controller is controlled by the South Bridge chip of the motherboard.
It can manage and optimize the IO performance when using the local disks or attached disk array.
The driver of the SATA AHCI Controller is not included in the service_CD.
So after installing the OS,the system can't find the driver.
Also, windows 2012 is not included in the XH311 V2 compatibility list.