VIA V-RAID Driver
To create the driver disk for Windows installation, you need to copy the contents of the folder
 named DriverDisk in the zip file, but not the folder itself - just the contents. For further information,
please read this article.

(Click image to begin download)
Scan Computer for Driver Updates
(Sponsor)
    Version - 5.80F     31 March 2009
Release Note    
Supported Operating Systems:     Windows Vista 64-Bit, Windows Vista 32-Bit, Windows XP 64-Bit, Windows XP,
Windows 2000, Windows ME, Windows 98SE, Windows NT
For use with the following Product/s:     VT8251 Integrated Serial ATA RAID controller ( VT8251 )
VT8237 Integrated Serial ATA RAID controller ( VT8237 VT8237 )
CX700 Integrated Serial ATA RAID controller ( CX700 )
VX700 Integrated Serial ATA RAID controller ( VX700 )
VX800 Integrated Serial ATA RAID controller ( )

To install the driver, save any unsaved work and close all applications then click
 on the driver download link (above). Choose the "Save File" option and save it to your folder
under Windows where you file your drivers. Unzip the file. (To unzip the file right click and highlight
 "Extract All") Then double click on the Setup.exe file to run the installation program.
Follow the prompts and restart at the end of the installation.