Can contain an optical drive. Insert a CD or DVD (if supported) into this drive.
2
5.25-inch drive bay
Can contain an optical drive. Insert a CD or DVD (if supported) into this drive.
3
3.5-inch drive bay
Can contain an optional floppy drive or optional media card reader.
4
USB 2.0 connectors (2)
Use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras, or for bootable USB devices (see your online User's Guide for more information on booting to a USB device).
It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards.
5
LAN indicator light
This light indicates that a LAN (local area network) connection is established.
6
diagnostic lights
Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see Diagnostic Lights.
7
power button
Press this button to turn on the computer.
NOTICE: To avoid losing data, do not turn off the computer by pressing the power button. Instead, perform an operating system shutdown. See Before You Begin for more information.
NOTICE: If your operating system has ACPI enabled, when you press the power button the computer will perform an operating system shutdown.
8
power light
The power light illuminates and blinks or remains solid to indicate different operating modes:
No light — The computer is turned off.
Steady green — The computer is in a normal operating state.
Blinking green — The computer is in a power-saving mode.
Blinking or solid amber — The computer is receiving electrical power, but an internal power problem may exist (see Power Problems).
To exit from a power-saving mode, press the power button or use the keyboard or the mouse if it is configured as a wake device in the Windows Device Manager. For more information about sleep modes and power-saving mode, see Advanced Features.
See Diagnostic Lights for a description of light codes that can help you troubleshoot problems with your computer.
9
hard drive activity light
This light flickers when the hard drive is being accessed.
10
headphone connector
Use the headphone connector to attach headphones and most kinds of speakers.
11
microphone connector
Use the microphone connector to attach a microphone.
Back View
1
cover-release latch
This latch allows you to open the computer cover.
2
padlock ring
Insert a padlock to lock the computer cover.
3
voltage selection switch
Your computer is equipped with a manual voltage-selection switch. To help avoid damaging a computer with a manual voltage-selection switch, set the switch for the voltage that most closely matches the AC power available in your location.
NOTICE: In Japan, the voltage selection switch must be set to the 115-V position.
Also, ensure that your monitor and attached devices are electrically rated to operate with the AC power available in your location.
4
power connector
Insert the power cable.
5
back panel connectors
Plug serial, USB, and other devices into the appropriate connectors. See Back Panel Connectors.
6
card slots (4)
Access connectors for any installed PCI or PCI Express cards, PS/2 connector, eSATA connector, etc.
Back Panel Connectors
1
parallel connector
Connect a parallel device, such as a printer, to the parallel connector. If you have a USB printer, plug it into a USB connector.
NOTE: The integrated parallel connector is automatically disabled if the computer detects an installed card containing a parallel connector configured to the same address. For more information, see System Setup Options.
2
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.
Yellow — A good connection exists between a 1-Gbps (or 1000-Mbps) network and the computer.
Off — The computer is not detecting a physical connection to the network.
3
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.
For VPro to work, the network cable must be connected to the onboard NIC.
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.
4
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.
5
line-out connector
Use the green line-out connector to attach headphones and most speakers with integrated amplifiers.
6
line-in/microphone connector
Use the blue and pink line-in/microphone connector to attach a record/playback device such as a cassette player, CD player, or VCR.; or a personal computer microphone for voice or musical input into a sound or telephony program.
7
USB 2.0 connectors (6)
Use the back USB connectors for devices that typically remain connected, such as printers and keyboards.
8
video connector
Plug the cable from your VGA-compatible monitor into the blue connector.
NOTE: If you purchased an optional graphics card, this connector will be covered by a cap. Connect your monitor to the connector on the graphics card. Do not remove the cap.
NOTE: If you are using a graphics card that supports dual monitors, use the y-cable that came with your computer.
9
serial connector
Connect a serial device, such as a handheld device, to the serial port. The default designations are COM1 for serial connector 1 and COM2 for serial connector 2.
Lay the computer on its side as shown in the illustration.
Locate the cover release latch shown in the illustration. Then, slide the release latch back as you lift the
cover.
Grip the sides of the computer cover and pivot the cover up using the hinge tabs as leverage points.
Remove the cover from the hinge tabs and set it aside on a soft nonabrasive surface.
CAUTION: Graphics card heat sinks can become very hot during normal operation. Ensure that a graphics card heat sink has had sufficient time to cool before you touch it.
1
security cable slot
2
cover release latch
3
padlock ring
Inside Your Computer
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
NOTICE: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board.
1
optical drive
2
disk drive
3
power supply
4
optional chassis-intrusion switch
5
system board
6
heat sink assembly
7
hard drive
Chassis Intrusion Switch
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
NOTE: The chassis intrusion switch is standard on the ultra small form factor computer but is optional on mini tower, desktop and small form factor computers; it may not be present on your computer.
Disconnect the chassis intrusion switch cable from the system board by using two fingers to squeeze
the release mechanism on one side of the connector as you pull to disconnect the cable connector.
Slide the chassis intrusion switch out of its slot in the metal bracket, and then push it down through
the square hole in the bracket to remove the switch and its attached cable from the computer.
NOTE: You may feel a slight resistance as you slide the switch out of the slot.
Replacing the Chassis Intrusion Switch
Gently insert the switch from underneath the metal bracket into the square hole in the bracket, and
then slide the chassis intrusion switch into its slot until you feel it snap securely into place.
When the blue DELL™ logo appears, press <F2> immediately.
If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft® Windows® desktop. Then shut down your computer and try again.
Select the Chassis Intrusion option and then press the left- or right-arrow key to select Reset. Change
the setting to On, On-Silent, or Disabled.
