Dell OptiPlex GX260 Series System User's Manual page 81

11 diagnostic Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more
lights information, see
12 video Plug the cable from your VGA-compatible monitor into the blue connector.
connector
13 serial Connect a serial device, such as a handheld device, to the serial port. If you have a second serial
connector connector card installed, you can connect a second device to that connector.
For more information, see
Inside Your Computer
CAUTION: Before you begin any of the procedures in this section, follow the steps in
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.
Small Desktop Computer
1 hard drive
2 chassis intrusion switch 7
3 internal speaker
4 card cage
"Diagnostic Lights."
"System Setup
6
padlock ring
heat sink and blower assembly
8 system board
9 floppy drive
Options."
"CAUTION: Safety