The Ultrabay device in the Ultrabase or the eSATA Port in the Mini Dock is not recognized when the Ultrabay (HDD/Optical) or the eSATA Port is disabled in the ThinkPad Setup menu.
The above symptom is associated with, but not limited to, the following systems:
System is configured with:
This is the design of the hardware to share one SATA line with the Ultrabay in the Ultrabase and the eSATA Port in the Mini Dock. Disabling the Ultrabay (HDD/Optical) or the eSATA Port option in the ThinkPad Setup menu disables the SATA line and then the Ultrabase Ultrabay device and the Mini Dock eSATA Port will not be recognized.
To use the Ultrabase Ultrabay device or the Mini Dock eSATA Port, both the Ultrabay (HDD/Optical) and the eSATA Port should be enabled in the ThinkPad Setup menu as instructed below.