Dell Precision 490 Desktop - Page 134

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6. Ensure that all connectors are properly cabled and firmly seated.
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7. Rotate the hard-drive carrier back into place (see Rotating the Hard-Drive Carrier Back into the Computer).
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8. Replace the computer cover (see Replacing the Computer Cover).
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9. Connect the computer and devices to electrical outlets, and turn them on.
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1
speaker (optional)
4
speaker cable
2
speaker slots with tabs (3)
5
speaker connector on system board
3
latch release tab
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NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.