Fernando, Thanks for the reply! 1. I am attempting to install Server 2008; it is not already installed. The issue arises when the install routine attempts to find a suitable drive to install to. As I said, when I try the ICH9R drivers the array is still not seen in SP2 ... only R2 sees it. 2. See #1. No, the array is not seen by SP2, but is seen by R2. 3. Since the OS is not yet installed, I am not sure what you are saying/asking. I used the on-board Intel Matrix RAID to create the array. The other on-board RAID (SLI) can't be used because it won't so RAID 5 on the S3200SH board. I don't believe the RAID WEB console has the drivers for this issue. It is for viewing the array once installed if I am not mistaken. I have visited all of the Intel support pages many times and have spoken to T/S directly (they are useless). The BIOS is current. I am absolutely stuck on this one. If 2008 SP2 has native support, why doesn't the array show up? Why does it show with R2? I am using our Technet copies of S2008 and I am sure they are as complete as the retail stuff..... if not more so. Any and all help is appreciated. Charlie