Can contain an optional floppy drive or an optional media card reader.
3
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 System Setup 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.
4
LAN indicator light
This light indicates that a local area network (LAN) connection is established.
5
diagnostic lights
Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see Diagnostic Lights.
6
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 Turning Off Your Computer 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.
7
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.
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 exiting from a power-saving mode, see Power Management.
See System Lights for a description of light codes that can help you troubleshoot problems with your computer.
8
hard-drive activity light
This light flickers when the hard drive is being accessed.
9
headphone connector
Use the headphone connector to attach headphones and most kinds of speakers.
10
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 even though the AC power available in Japan is 100 V.
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
Access connectors for any installed PCI and PCI Express cards.
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.
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.
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.
On computers with a sound card, use the connector on the card.
6
line-in connector
Use the 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.
7
USB 2.0 connectors (5)
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. Do not remove the cap. Connect your monitor to the connector on the graphics card.
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.
