My Dell XPS 8100 came with two 750gb harddrives in a raid 0 configuration. The motherboard type is a H57 and it has a built in Intel controller card that supports Raid 0 and 1. With the raid 0 configuration Windows 7 gave a storage performance score of 6.0. I rebuilt the system using raid 1 configuration and the performance score went down .1 points to 5.9. Space isn't an issue for me so I'm not worried about lossing 750gb of storage in a mirrored configuration. Performance is a bigger issue since I like my systems nice an fast. Is a .1 score increase worth the risk of lossing a stripped disk set if I have a hard drive failure. Should I even mess with a raided configuration with this system? Is the Windows 7 scoring system accurate at all? I'm open to all advice and opinions.