HP Notebook PC Reference Manual page 88

Note
You can dock or undock the computer in any power state: on, off, standby, or
hibernation. Make sure, however, that the computer is not entering into or resuming from
standby or hibernation when you dock or undock, or the computer could lock up.
To dock to the port replicator
1. Plug in the AC adapter, and then connect it to the back of the port replicator. You can
also operate the port replicator using power from the computer battery.
2. Remove the rubber cover from the docking connector on the bottom of the computer.
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 87