User Guide

Bottom
ThinkPad T490s
ThinkPad X390
1. Docking-station hook holes Use the docking-station hook holes to secure a supported docking station.
2. Emergency-reset hole
If the computer stops responding and you cannot turn it off by pressing the power
button, reset your computer:
1. Disconnect your computer from ac power.
2. Insert a straightened paper clip into the hole to cut off power supply
temporarily.
3. Connect your computer to ac power and then turn on your computer.
3. Speakers Enable you to experience high-quality sound.
8 T490s and X390 User Guide