I currently have 3 WD Caviar black 640gb. One is running the os while the other two will be put into raid 0.
After doing some research, I've found that I cannot switch my ich10r to raid mode because I installed windows when it was in IDE mode. When I change my ich10r to raid mode, windows will not boot which I have read to be normal. I've read a few things about editing the registry so that windows will automatically install the necessary drivers to enable raid mode. I'm a little stand-off-ish about doing this because I haven't found anyone who has done it with windows vista 64bit.
I found this on the microsoft websitehttp://support.microsoft.com/kb/922976
I'm not sure, but aren't the ahci and raid drivers one in the same, or linked in some way. My plan is to follow the steps here on the microsoft website to enable ahci mode, then allow the proper drivers to download, then try and switch to raid mode.
Let me know what you think, or if you have a better/full proof method.