Dell MD506 manual Back View Desktop Orientation

9	power light	The power light illuminates and blinks or remains solid to indicate
		different states:
		• No light — The computer is turned off.
		• Steady green — The computer is in a normal operating state.
		• Blinking green — The computer is in a power-saving state.
		• Blinking or solid amber — See "Power Problems" in your User’s Guide.
		To exit from a power-saving state, press the power button or use the keyboard or
		the mouse if it is configured as a wake device in the Windows Device Manager.
		For more information about sleep states and exiting from a power-saving state,
		see your User’s Guide.
		See "Diagnostic Lights" on page 38 for a description of light codes that can help
		you troubleshoot problems with your computer.
10	headphone connector	Use the headphone connector to attach headphones.
11	microphone connector	Use the microphone connector to attach a personal computer microphone for
		voice or musical input into a sound or telephony program.
12	network link light	The network link light is on when a good connection exists between a 10-Mbps,
		100-Mbps, or 1000-Mbps (or 1-Gbps) network and the computer.
13	diagnostic lights (4)	Use these lights to help you troubleshoot a computer problem based on the
		diagnostic code. For more information, see "Diagnostic Lights" on page 38.

Back View (Desktop Orientation)

1 2 3

1	back panel connectors	Plug serial, USB, and other devices into the appropriate connector.
2	card slots	Access connectors for any installed PCI, PCI-X, or PCI Express cards.
		NOTE: The slot farthest to the left and the two slots on the right support half-length
		cards: one PCI Express x8 slot (wired as x4) and two PCI-X slots. The center three slots
		support full-length cards: one PCI Express x16 slot, one PCI Express x8 slot (wired as x4)
		and one PCI slot.
3	power connector	Insert the power cable.

Quick Reference Guide

25