HP dx2818 - Microtower PC Hardware Reference Manual page 37

3. Turn off the computer properly through the operating system, then turn off any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION:
long as the system is plugged into an active AC outlet. You must disconnect the power cord to
avoid damage to the internal components of the computer.
5. Remove the computer access panel.
6. Remove the two screws that secure the hard drive cage to the chassis.
Figure 2-25
7. Push down the latch on the side of the hard drive cage (1), then slide the hard drive cage away
from the bottom of the chassis (2) as shown below.
Figure 2-26
ENWW
Regardless of the power-on state, voltage is always present on the system board as
Removing the Hard Drive Cage Screws
Releasing the Hard Drive Cage
Installing Additional Drives 31