Dell OptiPlex 755 User Manual page 114

1 data interface cable connector
Power Cable Connectors
1 power cable
Connecting and Disconnecting Drive Cables
When removing a cable with a pull-tab, grasp the colored pull-tab and pull until the connector detaches.
When connecting and disconnecting a cable without a pull tab, hold the cable by the black connector at each end.
Hard Drive
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 electrical outlet before removing the computer cover.
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.
Removing a Hard Drive
1. If you are replacing a hard drive that contains data you want to keep, back up your files before you begin this procedure.
2. Check the documentation for the drive to verify that it is configured for your computer.
3. Follow the procedures in Before You
4. Remove the computer cover (see
5. Disconnect the power and data cables from the drive.
2 data interface connector
2 power input connector
Begin.
Removing the Computer Cover).