Use the Service Tag to identify your computer when you access the Dell Support website or call technical support.
3
CD or DVD eject button
Press to eject a disk from the CD or DVD drive.
4
CD or DVD activity light
The drive light is on when the computer reads data from the CD or DVD drive.
5
FlexBay
Can contain an optional floppy drive or optional Media Card Reader. For more information about the Media Card Reader, see your computer Owner's Manual.
6
microphone connector
Use the microphone connector to attach a personal computer microphone for voice or musical input into a sound or telephony program.
On computers with a sound card, the microphone connector is on the card.
7
headphone connector
Use the headphone connector to attach headphones.
8
diagnostic lights (4)
Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "Diagnostic Lights."
9
hard-drive activity light
The hard drive activity light is on when the computer reads data from or writes data to the hard drive. The light might also be on when a device such as a CD player is operating.
10
power button,
power light
Press the power button to turn on the computer. The power light in the center of this button indicates the power state. See "Specifications" for more information.
NOTICE: To avoid losing data, do not use the power button to turn off the computer. Instead, perform an operating system shutdown.
11
USB 2.0 connectors (2)
Use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras. It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers, keyboards, and mice, or for bootable USB devices, which may not function properly if attached to the front connectors.
12
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 object near these vents.
NOTICE: Do not lift or carry the computer by the vents to avoid damage to the computer.
NOTICE: Keep the vent area clean and dust-free to ensure that the computer is adequately ventilated. Use only a dry cloth to clean the vent area to avoid water damage to the computer.
Back View of the Computer
1
voltage selection switch
See the safety instructions in the Product Information Guide for more information.
2
power connector
Insert the power cable.
3
back panel connectors
Plug USB, audio, and other devices into the appropriate connector.
4
card slots
Access connectors for any installed PCI and PCI Express cards.
1
link integrity light
Green — A good connection exists between a 10-Mbps network and the computer.
Orange — A good connection exists between a 100-Mbps network and the computer.
Off — The computer is not detecting a physical connection to the network.
2
network adapter connector
To attach your computer to a network or broadband device, connect one end of a network cable to either a network jack or your network or broadband device. Connect the other end of the network cable to the network adapter connector on the back panel of your computer. A click indicates that the network cable has been securely attached.
NOTE: Do not plug a telephone cable into the network connector.
On computers with a network connector card, use the connector on the card.
It is recommended 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 light
Flashes a yellow light when the computer is transmitting or receiving network data. A high volume of network traffic may make this light appear to be in a steady "on" state.
4
surround connector
Use the black surround connector to attach multichannel-capable speakers.
5
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.
6
line-out connector
Use the green line-out connector (available on computers with integrated sound) to attach headphones and most speakers with integrated amplifiers.
On computers with a sound card, use the connector on the card.
7
micro-phone/side surround connector
Use the pink and silver connector to attach a personal computer microphone for voice or musical input into a sound or telephony program.
On computers with a sound card, the microphone connector is on the card.
The side-surround output provides enhanced surround audio for computers with 7.1 speakers.
8
center/subwoofer connector
Use the yellow connector to attach a speaker to a Low Frequency Effects (LFE) audio channel.
9
VGA video connector
If your monitor has a VGA connector, plug it into the VGA connector on the computer.
10
USB 2.0 connectors (5)
Use the back USB connectors for devices that typically remain connected, such as printers, keyboards, and mice, or for bootable USB devices which may not function properly if attached to the front connectors (see "System Setup" for more information on booting to a USB device)
It is recommended that you use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras.
Inside View of Your Computer
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
System Board Components
Power Supply DC Connector Pin Assignments
DC Main Power Connector P1
Pin Number
Signal Name
18-AWG Wire
1
+3.3 VDC*
Orange
2
+3.3 VDC*
Orange
3
COM
Black
4
+5VDC
Red
5
COM
Black
6
+5 VDC
Red
7
COM
Black
8
POK
Gray
9
+5 VFP
Purple
10
+12 VBDC
White
11
+12 VBDC
White
12
+3.3 VDC*
Orange
13
+3.3 VDC*/SE*
Orange
14
–12 VDC
Blue
15
COM
Black
16
PS-ON
Green
17
COM
Black
18
COM
Black
19
COM
Black
20
NA
NA
21
+5 VDC
Red
22
+5 VDC
Red
23
+5 VDC
Red
24
COM
Black
*The orange +3.3 VDC output wires must be 16 AWG. The +3.3 VDC terminals are high current type (9 A current rating/Molex-HCS type).
*The +3.3VDC/SE is a brown sense wire for +3.3VDC and is optional.
