Dell KP542 manual Such as printers and keyboards

5	hard drive activity	The hard drive activity light is on when the computer
	light	reads data from or writes data to the hard drive. The
		light may also be on when a device such as an optical
		drive is in operation.
6	IEEE 1394 connector	Use the optional IEEE 1394 connector for high-speed
	(optional)	data devices such as digital video cameras and external
		storage devices.
7	USB 2.0 connectors	Use the front USB connectors for devices that you
	(2)	connect occasionally, such as flash memory keys or
		cameras, or for bootable USB devices (see "System
		Setup" in your User’s Guide for more information on
		booting to a USB device).
		NOTE: It is recommended that you use the back USB
		connectors for devices that typically remain connected,
		such as printers and keyboards.
8	Dell badge (rotatable)	Use the plastic handle on the back of the Dell badge to
		rotate the badge for tower-to-desktop or desktop-to-
		tower conversion.
9	power button	Press to turn on the computer.
		NOTICE: To avoid losing data, do not use the

power button to turn off the computer. Instead, perform an operating system shutdown.

NOTICE: If your operating system has ACPI enabled, when you press the power button the computer will perform an operating system shutdown.

NOTE: The power button can also be used to wake the system or to place it into a power-saving state (see "Power Management" in your User’s Guide).

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Quick Reference Guide