I purchased an rs2wc080 raid adapter a few weeks ago but couldn't get it going on my evga 680i motherboard (doesn't seem to like non-graphics cards in its PCI-e x16 slots). Fortunately I did have a test machine with xp on it to validate the rs2wco080 works. I ended up buying an Intel S3420GPLC motherboard just so I could get the adapter working.
I was able to set up a raid 50 array (using the rs2wco080's built in utility on boot up). I then was able to install Cyrix Xenserver 5.5 and the card seem to function propertly (I was able to create storage repositories using the raided drives). However, a ended up reloading the system with a fresh install Windows 2008 x64 (Note: not R2) with all the updates as of the date of this post. All the drivers seem to work the rs2wc080. While the installation starts at the end Windows gives the error
"Windows found the driver software for your device but encountered an error while trying to install it. Intel Raid Controller RS2WC080 This device cannot start. (Code 10)".
I downloaded the latest drivers for the rs2wco080 from Intel's website (ir3_Windows_signed_DRV_v4.32.0.xx) and installed from the W2K8_x64 folder. As an experiment I also tried uninstalling the drivers and resinstalling with R2 version. (same error).
Thanks for any help