HP dx2420 - Microtower PC Service & Reference Manual page 51

use M3 metric screws. The HP-supplied M3 metric guide screws (1) are black. The HP-supplied
6-32 standard screws (2) are silver.
Figure 6-18 Extra Drive Retainer Screws Location
CAUTION: To prevent loss of work and damage to the computer or drive:
If you are inserting or removing a drive, shut down the operating system properly, turn off the computer,
and unplug the power cord. Do not remove a drive while the computer is on or in standby mode.
Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid
touching the connector.
Handle a drive carefully; do not drop it.
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields
such as monitors or speakers.
If a drive must be mailed, place the drive in a bubble-pack mailer or other protective packaging and label
the package "Fragile: Handle With Care."
Drives 45