Has there been any progress on this issue? I am having the same problem and my D34010WYKH has already been replaced once, the new one is only marginally better and recognizes the installed SSD about 1/5th of the time. SSD works without issue in other computers. Could not install Windows 7/8 on it with the NUC but managed to install OpenELEC after several tries. On the occasions it does boot the SSD it works without issue until turned off.
Regards,
Dane