Inside Your Computer - Dell Precision Workstation 450 User Manual

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It is recommended that you use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras.
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 microphone Use the pink microphone connector (available on computers with integrated sound) to attach a personal computer microphone for
connector voice or musical input into a sound or telephony program.
On computers with a sound card, use the microphone connector on the card.
12 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
(COM 2) COM2 for serial connector 2.
For more information, see
13 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
(COM 1) COM2 for serial connector 2.
For more information, see

Inside Your Computer

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the System 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 CD/DVD drive 6 microprocessor airflow shroud
2 floppy drive 7 security cable slot
3 hard drive 8 system board
4 power supply 9 chassis intrusion switch
5 padlock ring
Cable Colors
Device Cable Color
Hard drive Blue pull tab
Floppy drive Black pull tab
CD/DVD drive Orange pull tab
"System Setup Options."
"System Setup Options."