Wow where i have i been. I had a p5b deluxe since 2006 and didn't even know i had intel matrix raid technology. Maybe you not aware of this superior raid also. I just thought the board had conventional raid. For those who don't know matrix raid allows you to combine both raid 0 and raid 1 arrays with only two drives both at the same time! across 2 partitions. So this gives you the performance of raid 0 for the system partition ie: windows and raid 1 for all your data on another partition which is auto backed up. 2x250gb wd barracudas are ideal for this as they are fast and big or big and fast. Here's a good idea. Now due to this cool setup i now longer have to use Acronis True Image to backup loads of data. My data is backed up in real time with raid 1. If i just keep the system partition small size with no data only system files then it can be even smaller. I am going to make xp auto install the Documents and Settings folder onto the data partition D: on the raid 1 drive so it will be auto backed up also. So i will have 2 copies of all my data. If any 1 drive goes down i don't lose any important data. If the raid 0 goes corrupt i don't lose raid 1 only raid 0 because raid 1 is still using both drives but across 2 partitions of both drives. I could use acronis to backup the system partition which would only take like 1-2 mins as it small to raid 1 also. So I can restore the raid 0 or access the raid 1 in bartpe easily. For those who don't think raid 0 is worth installing because they read of articles that say the benefits of speed are not worth it. The articles are so wrong. There's also another advantage to this setting up a small raid 30 gig or less you make the raid 0 even faster. Tip So from the raid bios(ctrl-I) you setup 2 raids. Setup your first raid 0 and immediately setup a raid 1 with the remainder of space and install xp onto raid 0 as normal using the raid driver. Once xp is stalled install the matrix raid software and you can turn on write back caching for both raids and format the raid 1. This software will alert you if the raid goes down. Goto disk manager and format the raid 1 partition and anything you copy to that drives is auto backed up. You can't see the 3rd mirrored partition its hidden but rest assured its being backed up to this secret partition.