If you come across to have the message of "Calibrating Finished, Please Rebott" displayed on the screen when the UDMA3 is turned on. It is because no hard disk is installed inside the unit. An internal hard disk is required to make the unit run normally.
Please insert a 2.5" laptop hard disk inside the unit, and the above message will be disappeared when it is powered on. Go to Settings page from Main Menu > Format HDD > After hard disk is formatted, the unit is ready to go.