Dell XPS 420 Installing Your Computer in an Enclosure, Main speakers in the surround sound setup

book.book Page 22 Tuesday, November 27, 2007 10:29 AM

11	S/PDIF	Use the S/PDIF optical connector to transmit digital audio
	(optical)	without going through an analog audio conversion process.
	connector	On computers with a sound card, use the connector on the card.
12	center/subwoof	Use the (orange) center/subwoofer connector to attach a
	er LFE	center speaker or a single subwoofer.
	connector	On computers with a sound card, use the connector on the card.
		NOTE: The LFE (Low Frequency Effects) Audio channel, found
		in digital surround sound audio schemes, carries only low
		frequency information of 80 Hz and below. The LFE channel
		drives a subwoofer to provide extremely low bass extension.
		Systems not using subwoofers can shunt the LFE information to
		the main speakers in the surround sound setup.
13	side surround	Use the (gray) side surround sound connector to attach
	sound	multichannel-capable speakers. The side-surround output
	connector	provides enhanced surround audio for computers with
		7.1 speakers.
		On computers with a sound card, use the connector on the card.
14	USB 2.0	Use the back, rear-dual USB connectors for devices that
	connectors (2)	typically remain connected, such as printers and keyboards.
	(rear dual)	NOTE: It is recommended that you use the front USB

connectors for devices that you connect occasionally, such as joysticks, cameras, or bootable USB devices.

Installing Your Computer in an Enclosure

Installing your computer in an enclosure can restrict the airflow and impact your computer’s performance, possibly causing it to overheat. Follow the guidelines below when installing your computer in an enclosure:

NOTICE: The operating temperature specifications indicated in your Owner’s Manual reflect the maximum ambient operating temperature. The room’s ambient temperature needs to be a consideration when installing your computer in an enclosure. For example, if the ambient room temperature is at 25° C (77° F), depending on your computer’s specifications, you only have 5° to 10° C (9° to 18° F) temperature margin before you reach your computer’s maximum operating temperature. For details about your computer’s specifications, see "Specifications" on page 173.

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Setting Up and Using Your Computer