Dell OptiPlex GX270 - Manual (Page 63)

Inside Your Computer
On computers with a sound card, use the
connector on the card.
7 line-out
connector
Use the green line-out connector
(available on computers with integrated
sound) to attach headphones and most
speakers with integrated amplifiers.
On computers with a sound card, use the
connector on the card.
8 microphone
connector
Use the pink microphone connector
(available on computers with integrated
sound) to attach a personal computer
microphone for voice or musical input into
a sound or telephony program.
On computers with a sound card, the
microphone connector is on the card.
9 USB 2.0
connectors
(6)
Use the back USB connectors for devices
that typically remain connected, such as
printers and keyboards, and for bootable
USB devices.
10 keyboard
connector
If you have a standard keyboard, plug it
into the purple keyboard connector. If
you have a USB keyboard, plug it into a
USB connector.
11 diagnostic
lights
Use the lights to help you troubleshoot a
computer problem based on the
diagnostic code. For more information,
see "
Diagnostic Lights ."
12 video
connector
Plug the cable from your VGA-compatible
monitor into the blue connector.
NOTE: If your computer shipped with a
video card installed, this connector will
have a cap on it. Plug the monitor cable
into the connector on the card.
NOTE: If you are using a video card that
supports dual monitors, use the y-cable
that came with your computer.
13 serial
connector
Connect a serial device, such as a
handheld device, to the serial port. In
system setup, the default designation is
COM1.
For more information, see " System Setup
Options ."
CAUTION: Before you begin any of the procedures in this section, follow the steps in " Safety Instructions ."
CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: Be careful when opening the computer cover to ensure that you do not accidently disconnect cables from the system board.