Inside your computer – Dell OptiPlex GX270 User Manual
Page 96
Inside Your Computer
Cable Colors
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 disconnect cables from the system board.
1 hard drive
6 system board
2 floppy drive
7 power supply
3 CD/DVD drive
8 padlock ring
4 internal speaker
9 heat sink and blower assembly
5 chassis intrusion switch
Device
Color
Hard drive
Blue pull tab
Floppy drive
Black pull tab
CD/DVD drive
Orange pull tab
Serial ATA drive Blue cable