With the Silicon Image controller already plugged in and the driver already installed. Follow the instructions below to update SiI 3112 driver.
1. Click Windows [Start], then move the mouse to stay on [Settings].
2. Click [Control Panel].
3. Double Click [System].
4. Click [Hardware] tab.
5. Click [Device Manager].
6. Right Click [Silicon Image SiI3112 SATARaid Controller]
under [SCSI and RAID Controllers], then click [Properties].
7. Click [Driver] tab.
8. Click [Update Driver].
9. Choose [Install from a list or specific location].
10. Click [Next].
11. Choose [Include this location in the search].
12. Click [Browse] to specify the file path where the driver is,
e.g. "X

Drivers\Si3112"( X is the drive you put the support CD).
13. Click [Next].
14. Click [Finish].