Z87 Mobo and UEFI BIOS. 2x SSD's in RAID 0 on SATA 1 & 3 with my OS as boot drive. 2x Storage HDD's on SATA 5 & 6. SATA 1 - 4 set to RAID and 5 - 6 set to IDE. Been running fine for over a year. Booted up today went right to BIOS and RAID 0 SSD's arent showing up anymore. Changed ports 1 - 4 to AHCI, saved and rebooted and both SSD's now show up. So they aren't dead. Don't know why they no longer will show up in RAID and will not boot... Please help.