I/O-Panel Components; Removing The I/O Panel - Dell Precision 490 Desktop User Manual

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I/O Panel
Dell Precision™ Workstation 490 User's Guide
I/O-Panel Components
Removing the I/O Panel
Replacing the I/O Panel
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your
computer's electronic components. You can do so by touching an unpainted metal surface on the computer.
I/O-Panel Components
1 USB ports
2 diagnostic, hard-drive access, and network integrity lights
3 headphone connector
4 microphone connector
front-panel thermal diode connector
5
NOTICE: The front-panel thermal diode cable must be installed in this connector at all times while your computer is running or thermal problems may
result.
Removing the I/O Panel
1. Follow the procedures in Before You
2. Remove the computer cover (see
3. Rotate the hard-drive carrier out of the computer (see
4. Disconnect the optional speaker connector (if installed) from the system board.
5. Disconnect the card fan connector from the system board.
Begin.
Removing the Computer Cover).
Rotating the Hard-Drive Carrier Out of the Computer).