Dell OptiPlex 755 - Manual (Page 238)

Connecting and Disconnecting Drive Cables
When connecting and disconnecting a SATA data cable, hold the cable by the black connector at each end. When removing a cable with a pull-tab, grasp the
colored pull-tab and pull until the connector detaches.
Hard Drive
Installing a Hard Drive
1. If you are installing a new drive, rather than replacing an already installed drive, attach the plastic drive rails—located inside the cover—to the new drive
and skip to
step 9 .
2. If you are replacing a hard drive that contains data you want to keep, back up your files before you begin this procedure.
3. Check the documentation for the drive to verify that the drive is configured for your computer.
4. Follow the procedures in Before You Begin .
5. Remove the computer cover (see Removing the Computer Cover ).
6. Remove the installed hard drive:
a. With one hand, squeeze the drive rails so as to push the two rails toward each other.
b. Slide the drive slightly forward, and rotate the hard drive up and away from the hard drive bracket.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the power supply before removing the hard drive.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your
computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that will sufficiently
cushion it.
1 drive
2 drive rails (2)
3 screws (4)