The floppy drive light is on when the computer reads data from or writes data to the optional floppy drive. Wait until this light turns off before you remove the floppy disk from the drive.
2
hard-drive activity light
The hard drive 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 your CD player is operating.
3
floppy drive (optional)
Access the optional floppy drive.
4
CD/DVD drive(s)
Access additional drives, such as a CD or DVD drive. Drive arrangement varies on computer configuration.
5
diagnostic lights (4)
Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "Diagnostic Lights."
6
USB 2.0 connectors (2)
Use the front USB connectors for devices that you connect occasionally, such as flash memory key 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.
7
IEEE 1394a connector
Attach high-speed serial multimedia devices, such as digital video cameras.
NOTE: This connector is available if you purchase an add-in IEEE 1394a card.
8
headphone connector
Use the headphone connector to attach headphones and most kinds of speakers.
9
power light
The power light illuminates and blinks or remains solid to indicate different states:
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 state.
To exit from a power-saving state, 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 states and how to exit from a power-saving state, see "Power Management."
See "Diagnostic Lights" for a description of light codes that can help you troubleshoot problems with your computer.
10
power button
Press to turn on the computer.
NOTICE: To avoid losing data, do not use the power button to turn off the computer. Instead, perform an operating system shutdown.
Back View
1
cover latch release
To open the computer, lay the computer on its side with the cover latch release at the top and then push the latch to the left (see "Opening the Computer Cover").
2
padlock ring
Insert a padlock to lock the computer cover.
3
power connector
Insert the power cable.
4
card slots
Access connectors for any installed cards.
5
back panel connectors
Plug serial, USB, and other devices into the appropriate 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
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.
3
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.
4
mouse connector
Plug a standard 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.
If your computer is running the Microsoft® Windows® XP operating system, the necessary mouse drivers have been installed on your hard drive.
5
USB 2.0 connectors (4)
Use the back USB connectors for devices that typically remain connected, such as printers and keyboards.
It is recommended that you use the front USB connectors for devices that you connect occasionally, such as flash memory key or cameras, or for bootable USB devices.
6
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 1000-Mbps (or 1-Gbps) network and the computer.
Off — The computer is not detecting a physical connection to the network.
7
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 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.
8
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.
9
USB 2.0 connectors (2)
Use the back USB connectors for devices that typically remain connected, such as printers and keyboards.
It is recommended that you use the front USB connectors for devices that you connect occasionally, such as flash memory key or cameras, or for bootable USB devices.
10
keyboard connector
If you have a standard keyboard, plug it into the purple keyboard connector. If you have a USB keyboard, plug it into a USB connector.
11
microphone connector
Use the pink 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.
12, 13
serial connectors
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.
