Disconnecting The Computer - Compaq Armada M300 Series Reference Manual

To ensure that devices connected to the expansion base are
activated, follow the guidelines below.
When adding a device to or removing a device from the
expansion unit, turn off power to the computer, expansion
unit, and applicable devices before connecting or

disconnecting the computer.

When the computer is connected to the mobile expansion unit,
be sure all attached devices are turned on, then turn on power
to the computer.
The mobile expansion unit supports a second hard drive,
CD-ROM drive, DVD-ROM drive, LS-120 drive, or extra battery
pack in the MultiBay on the front right side of the unit. In
addition, it supports a diskette drive in the Diskette Drive Bay on
the front left side of the unit.
If you are using Windows 95, Windows 98, or
Windows NT 4.0 preinstalled by Compaq, you do not need to turn
off the computer before removing a diskette drive, CD-ROM
drive, DVD-ROM drive, LS-120 drive, hard drive, or battery pack
from the mobile expansion unit. If you installed Windows 95,
Windows 98, or Windows NT 4.0 that you purchased separately,
you must obtain additional software from Compaq to support
removing these drives while the computer is on or in Suspend
(Standby). For more information about the software, refer to the
Compaq Internet site at http://www.compaq.com.