Hello, I've seen a lot of similar problems to this one on the net, but non exactly the same or one that has a solution that works for me... The system: - Intel DQ35JO board - Intel Core2 Quad 2.63 Ghz processor - 4 x 1GB RAM - 2 x 500GB Seagate SATA HDD - Samsung SATA DVD-RAM Drive The HDD's are plugged into SATA0 and SATA1 ports. The DVD drive into SATA2 port. Firstly if I keep the HDD's as legacy in BIOS I can install XP Pro SP2, no probs. But if I change BIOS to RAID, reboot, configure as RAID1 in Intel Matrix Storage setup (BIOS picks up the new RAID volume) press F6 to provide the Intel Matrix Storage drivers in XP install, choose the ICH9 drivers (tried the 2 other available options as well) then XP install continues loading files until it gets to "Starting Windows" at which point it gives me the following error => STOP: 0x0000007B (0xF78D2524, 0xC0000034, 0x00000000, 0x00000000) I've tried: - downloading the latest drivers, - skipping the F6 driver install but everything gives me the blue screen. - I've also installed XP without RAID and then tried to upgrade to RAID, but the Intel Matrix Storage software just says the system doesn't support the minimum requirements.... Any help would be very much appreciated.