Lenovo X220-4287 Tablet User Manual


 
ThinkPad Ultrabase Series 3 bottom view
1 By pressing the eject request button, you can tell the operating system to get ready for undocking.
2 The docking indicator is red when your computer is docked. It blinks when the eject request button
is pressed.
3 The eject lever detaches your computer from the ThinkPad Ultrabase Series 3.
4 The holes are for the system speakers.
Attaching a ThinkPad Ultrabase Series 3
Attention: Disconnect the AC power from your computer before you attach the ThinkPad Ultrabase Series 3.
The AC adapter connector will be damaged if it remains connected to the computer during the attachment
You can hot attach or warm attach the computer to the ThinkPad Ultrabase Series 3. Hot attach is attaching
the computer to the ThinkPad Ultrabase Series 3 while in operating mode; warm attach is attaching the
computer to the ThinkPad Ultrabase Series 3 while in sleep (standby) mode.
In doing a hot- or warm- attach, observe the following:
For hot-attaching: The docking indicator of the ThinkPad Ultrabase Series 3 should turn on after a few
seconds.
For warm-attaching: When the computer returns from sleep (standby) mode, the docking indicator of
the ThinkPad Ultrabase Series 3 should turn on.
To attach your computer to a ThinkPad Ultrabase Series 3, do the following:
1. Make sure that the system lock key of the ThinkPad Ultrabase Series 3 is in the unlocked (vertical)
position.
Chapter 7. Enhancing your computer 151