There are at total of five extra silver 6-32 standard screws. Four are used as guide screws for a secondary hard drive. The fifth
is used for bezel security.
Carefully handle hard disk drives
damage to the computer or drive.
Always follow the
operating system, turning off the power, and unplugging the power cord. Never 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 you must mail a drive, use a bubble-pack mailer or other protective packaging and label the
package "Fragile: Handle With Care."
Removing an optical drive
To remove an optical drive from the drive cage:
Follow the procedures listed in the
Remove the access panel (see
Remove the front bezel (see
Chapter 5 Replacing components
Extra Guide Screw Locations
Guide screw, color
Black M3 Metric Screws
Silver 6-32 Standard Screws
Take proper precautions when handling hard disk drives to prevent loss of work and
Predisassembly procedures on page
Failure to follow the predisassembly procedures can result in equipment damage or
Optical disk drives, SSDs, small form factor hard drives (6.3cm/2.5in),
media card reader
8.9cm/3.5in hard disk drives, front bezel security
Predisassembly for drives on page 77
Removing the access panel on page
Removing the front bezel on page
68, which include shutting down the