I had two HDDs in RAID 1. I got a system corrupt or missing problem during boot. So I revert BIOS settings to non RAID, I disconnected each drive separately and I did chkdsk /r for each one. As a result: 1. both of them boot normally in non RAID formation. 2. Only one is booting normally in RAID formation. 3. RAID fails and Intel matrix utility says that the non booting HDD is a member of the RAID 1 chain and that the booting HDD is a NON RAID DISK. What can I do to rebuild the RAID 1 without loosing my data? (MB Gigabyte EP45-DS5, windows XP sp3). Thanks in advance!!