Dell 720H2C appendix Attaching the Computer Stand, Rca S/Pdif

		connectors on the card and on the back of the computer when
		setting up multiple network connections (such as a separate intra-
		and extranet).
		NOTE: Dell recommends that you use Category 5 wiring and
		connectors for your network. If you must use Category 3 wiring,
		force the network speed to 10 Mbps to ensure reliable operation.
3	network activity	Flashes a yellow light when the computer is transmitting or receiving
	light	network data. A high volume of network traffic may make this light
		appear to be in a steady "on" state.
4	keyboard	Plug a standard PS/2 keyboard into the purple keyboard connector.
	connector	Turn off the computer and any attached devices before you connect
		a keyboard to the computer. If you have a USB keyboard, plug it into
		a USB connector.
5	mouse connector	Plug a standard PS/2 mouse into the green mouse connector. Turn
		off the computer and any attached devices before you connect a
		mouse to the computer. If you have a USB mouse, plug it into a USB
		connector.
6	side surround	Use the (silver) side surround connector to attach additional
	sound connector	speakers.
7	center	Use the (orange) subwoofer connector to attach a single subwoofer.
	subwoofer/LFE
	connector
		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.
8	surround sound	Use the (black) surround sound connector to attach multichannel-
	connector	capable speakers.
9	line-in connector	Use the (blue) line-in connector to attach a record/playback device
		such as a cassette player, CD player, or VCR.
		On computers with a sound card, use the connector on the card.
10	line-	Use the (green) line-out connector to attach headphones and
	out/headphone	speakers with integrated amplifiers.
	connector
		On computers with a sound card, use the connector on the card.
11	microphone	Use the (pink) microphone connector to attach a personal computer
	connector	microphone for voice or musical input into a sound or telephony
		program.
12	Optical S/PDIF	Use the optical S/PDIF connector to transmit digital audio without
	connector	going through an analog audio conversion process.
13	RCA S/PDIF	Use the RCA S/PDIF connector to transmit digital audio without going
	connector	through an analog audio conversion process.
14	USB 2.0	Use the back USB connectors for devices that typically remain
	connectors (6)	connected, such as printers and keyboards.
		NOTE: Dell recommends that you use the front USB connectors for
		devices that you connect occasionally, such as flash memory keys,
		cameras, or bootable USB devices.
15	IEEE 1394	Use the IEEE 1394 connector for high-speed data devices such as
	connector	digital video cameras and external storage devices.

Attaching the Computer Stand

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

CAUTION: Your computer is heavy and can be difficult to maneuver. Seek assistance before attempting to lift, move, or tilt the computer and always lift correctly to avoid injury; avoid bending over while lifting.

CAUTION: The computer stand should be installed at all times to ensure maximum system stability. Failure to install the stand could result in the computer tipping over, potentially resulting in bodily injury or damage to the computer.

1.Follow the procedures in Before You Begin.

2.Remove the thumb screw that is installed on the base of the computer.

NOTE: If the thumb screw is not already installed in the stand, it has been packaged separately.