Compaq Armada M300 Series Reference Manual page 62

3. Pull up on the drive's front bezel
from the bay
1. If the computer is on, save your work and shut down the
computer.
If you are unsure whether the computer is off or in
Hibernation, turn the computer on by pressing the power button,
then shut it down.
2. Turn the computer bottom side up.
.
, and slide the hard drive