I have Intel Motherboard DH67BL, Intel Core i5 2300 CPU and I have a problem with RAID.
When I change Sata mode in bios to RAID, I can enter to raid configuration menu, create RAID 1 Mirror volume, save values and exit, but system doesn't try boot form dvd or hdd, just hangs, I can't enter bios neither, only if change bios jumper to configuration. I can't get "Reboot and select proper boot device", if I disable all hdd and dvd I have the same problem.
If sata mode set to ahci or ide, everuthing works fine.
I had the same problems with 2 intel dh67bl mothers.
I have changed to another manufacter motherboard with the same chipset and now works fine!