Dell OptiPlex 755 - Manual (Page 32)

32
Quick Reference Guide
Removing the Computer Cover
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.
1 Follow the procedures in "Before You Begin" on page 13.
2 If you have installed a padlock through the padlock ring on the back panel,
remove the padlock.
3 Locate the cover release latch shown in the illustration. Then, slide the
release latch back as you lift the cover.
4 Grip the sides of the computer cover and pivot the cover up using the
hinge tabs as leverage points.
5 Remove the cover from the hinge tabs and set it aside on a soft
nonabrasive surface.
CAUTION:
Graphics card heat sinks can become very hot during normal
operation. Ensure that a graphics card heat sink has had sufficient time to cool
before you touch it.
8 video connector Plug the cable from your VGA-compatible monitor into the
blue connector.
NOTE:
If you purchased an optional graphics card, this
connector will be covered by a cap. Connect your monitor to
the connector on the graphics card. Do not remove the cap.
NOTE:
If you are using a graphics card that supports dual
monitors, use the y-cable that came with your computer.
9 serial connector Connect a serial device, such as a handheld device, to the
serial port. The default designations are COM1 for serial
connector 1 and COM2 for serial connector 2.
For more information, see "System Setup Options" in the
User’s Guide.