Back to Contents PageAbout Your ComputerDell™ Dimension™ 9100 Service ManualFront View of the ComputerBack View of the ComputerFront View of the Computer1 cover latchreleaseUse this latch to remove the cover. See "Removing the ComputerCover."2 CD or DVDactivity lightThe drive light is on when the computer reads data from the CD or DVDdrive.3 CD or DVDeject buttonPress to eject a disc from the CD or DVD drive.4 Floppy drivebayCan contain an optional floppy drive.5 FlexBay Can contain an optional floppy drive or optional Media Card Reader.6 IEEE 1394connector(optional)Use the optional IEEE 1394 connector for high-speed data devices suchas digital video cameras and external storage devices.7 vents For adequate cooling, do not block any of the vents.NOTICE: Ensure that there is a minimum of two inches of spacebetween all vents and any object near these vents.8 USB 2.0connectors (2)Use the front USB connectors for devices that you connect occasionally,such as joysticks or cameras. It is recommended that you use the backUSB connectors for devices that typically remain connected, such asprinters, keyboards, and mice, or for bootable USB devices, which maynot 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 offthe computer. Instead, perform an operating system shutdown.10 hard-driveactivity lightThe hard drive activity light is on when the computer reads data from orwrites data to the hard drive. The light might also be on when a devicesuch as a CD player is operating.11 diagnosticlights (4)Use the lights to help you troubleshoot a computer problem based onthe diagnostic code. For more information, see "Diagnostic Lights."12 headphoneconnectorUse the headphone connector to attach headphones.