HP Compaq Presario,Presario 1110 Reference Manual page 85

Note
3. Align the computer with the locator posts on the port replicator.
4. Press the computer down until both sides click into place.
5. If the computer is off, open the computer and press the power button to turn it on. The
lights on the port replicator turn on.
When the computer is docked, you can use the computer's security connector to secure
the computer. To secure both the computer and port replicator, install the Kensington
lock in the security connector next to the undock button—this locks the undock button.
If a device is connected to an audio port on the computer, any device connected to the
corresponding port on the port replicator is ignored.
Add-On Devices
Connecting External Devices
Reference Guide 85