HP DM3 manual Front components, Left-side components, Component Function Speakers Produce sound

Front components

Item	Component	Function
(1)	Speakers (2)	Produce sound.

Left-side components

Item	Component	Function
(1)	Security cable slot	Attaches an optional security cable to the computer.
		NOTE: The security cable is designed to act as a
		deterrent, but it might not prevent the computer from
		being mishandled or stolen.
(2)	Vent	Enables airflow to cool internal components.
		NOTE: The computer fan starts up automatically to
		cool internal components and prevent overheating. It is
		normal for the internal fan to cycle on and off during
		routine operation.
(3)	External monitor port	Connects an external VGA monitor or projector.
(4)	HDMI port	Connects an optional video or audio device, such as a
		high-definition television, or any compatible digital or
		audio component.
(5)	USB port	Connects an optional USB device.
(6)	Drive light	On—The hard drive is in use.
(7)	Power light	Supports the following digital card formats:
		● On—The computer is on.
		● Flashing—The computer is in Sleep.
		● Off—The computer is off or in Hibernation.

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