Dell XPS 400 9150 XPS 400/Dimension 9150 Service Manual - Page 3

About Your Computer: Dell XPS 400 Service Manual connector (optional) 7 vents digital video cameras and external storage devices. For adequate cooling, do not block any of the vents. NOTICE: Do not use the vents as handles; doing so may result in damage to your computer. Also, ensure that there is a minimum of two inches of space between all vents and any object near these vents. 8 USB 2.0 Use the front USB connectors for devices that you connect occasionally, such connectors as joysticks or cameras. It is recommended that you use the back USB (2) 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. 9 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. 10 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. 11 diagnostic Use the lights to help you troubleshoot a computer problem based on the lights (4) diagnostic code. For more information, see "Diagnostic Lights." 12 headphone Use the headphone connector to attach headphones. connector 13 microphone Use the microphone connector to attach a personal computer microphone for connector voice or musical input into a sound or telephony program. 14 Service Tag Used to identify your computer when you access the Dell Support website or call technical support. Back View of the Computer file:///T|/htdocs/systems/xps400/sm/about.htm[8/3/2012 3:11:06 PM]