Dell E520 service manual Back View of the Computer

About Your Computer: Dell Dimension E520 Service Manual

	drive
6	vents	For adequate cooling, do not block any of the vents.
		NOTICE: Ensure that there is a minimum of two inches of space between all
		vents and any objects near the vents.
		NOTICE: Keep the vent area clean and dust-free to ensure that the system is
		adequately ventilated. Use only a dry cloth to clean the vent area to avoid
		water damage to the system.
7	USB 2.0	Use the front USB connectors for devices that you connect occasionally, such
	connectors	as flash memory keys, cameras, or bootable USB devices. For more

(2)information on booting to a USB device see System Setup Options.

		NOTE: It is recommended that you use the back USB connectors for devices
		that typically remain connected, such as printers and keyboards.
8	power	Press the power button to turn on the computer.
	button
		NOTICE: To avoid losing data, do not use the power button to turn off the
		computer. Instead, perform an operating system shutdown.
9	hard drive	The hard drive light is on when the computer reads data from or writes data
	activity	to the hard drive. The light may also be on when a device such as a CD player
	light	is operating.
10	diagnostic	Use the sequence of the diagnostic lights to help you troubleshoot a problem
	lights (4)	with your computer (see Diagnostic Lights).
11	headphone	Use the headphone connector to attach headphones and most kinds of
	connector	speakers.
12	microphone	Use the microphone connector to attach a personal computer microphone for
	connector	voice or musical input into a sound or telephony program.

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