check this out
http://www.nzone.com/object/nzone_downloads_nforce_vista_x86_beta2.html
NVIDIA released these beta drivers for Windows Vista Beta 2. The current
ForceWare driver is a beta release that will enable you to test the basic
features and capabilities of the new operating system.
Installation Notes:
a.. These drivers are tested for use only with Microsoft Windows Vista
Beta 2 only.
b.. Package contents include Audio driver, SMBus driver, SataRAID driver,
SMU driver, RAIDTOOL application.
c.. Network drivers are provided "In-The-Box" and are automatically
installed during the Windows Vista Beta 2 installation process.
d.. This driver package does not include an installer. You must use the
INF installation to install these drivers by going to the Windows device
manager and manually updating the drivers.
User Guides:
Installation Instructions
Windows Vista Beta 2.............
Supported Products:
a.. nForce4 SLI
b.. nForce4 Ultra
c.. nForce4 Pro 2200
d.. nForce 590 SLI
e.. nForce 570 SLI
f.. nForce 570 Ultra
g.. nForce 550
note that is beta driver!
So if you have critical data /production os on the raid, I'm sure you will
do what you can to backup, including mirroring/imaging., backup to an extra
external drive
"Neal at Spectdar Computing"