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20 Quick Reference Guide
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Ultra-Small Form Factor Computer — Back-Panel Connectors
1 diagnostic lights Use the lights to help you troubleshoot a computer problem based
on the diagnostic code. For more information, see "Diagnostic
Lights" on page 37.
2 computer cover release knob Rotate this knob in a clockwise direction to remove the cover.
3 back-panel connectors See the following subsection, "Ultra-Small Form Factor Computer
— Back-Panel Connectors," for information about the connectors
on the back panel of your computer.
4 power connector Connect the power cable to this connector.
5 vents The vents allow air to flow through your computer. To ensure proper
ventilation, do not block these cooling vents.
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1 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have a USB
printer, plug it into a USB connector.
2 link integrity light
• Green — A good connection exists between a 10-Mbps network and the computer.
• Orange — A good connection exists between a 100-Mbps network and the computer.
• Yellow — A good connection exists between a 1000-Mbps (1-Gbps) network and the
computer.
• Off — The computer is not detecting a physical connection to the network or the
network controller is turned off in system setup.