Dell OptiPlex GX280 - Manual (Page 283)

connector have a USB printer, plug it into a USB connector.
NOTE: The integrated parallel connector is automatically disabled if the
computer detects an installed card containing a parallel connector configured
to the same address. For more information, see "System Setup Options."
Inside Your Computer
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in
the Product Information Guide.
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 accidentally disconnect cables from
the system board.
1 hard drive 6 heat sink and blower assembly
2 internal speaker 7 power supply
3 chassis intrusion switch 8 floppy drive
4 system board 9 CD/DVD drive
5 padlock ring and security cable slot
System Board Components