Hi I recently purchased an alienware 15R2 with only the mechanical 1TB HDD installed (No M.2 yet)

On initial power up out of the box, I got the BOOT_DEVICE_INACCESSIBLE BSOD

Recovery mode, image recovery etc all fail to see the disk drive, as does trying a clean windows install.

Loading the Intel RAID driver during windows setup results in no disk being found. Have tried the DELL drivers, intel etc and no luck, just won't see the drive

So far my only way of getting the disk visible is to change the RAID mode to AHCI in the BIOS and try to install windows, but this is so slow and the windows install fails when it tries to copy files. Once I try to load the intel AHCI driver rather than the standard windows AHCI driver, it makes the disk disappear.

I have run the full diagnostics on the drive and system and they all pass. Absolutley confused and after any suggestions. I'm calling support in the morning once they open, but after spending this kind of coin on the machine, I'd expect it to work out of the box.