50 Removing and Installing PartsBack View8 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.• Blinking or solid amber — See "Power Problems" on page 28.9 floppy-drive activitylightThe floppy drive light is on when the computer reads data from or writes data tothe floppy drive. Wait until this light turns off before you remove the floppy diskfrom the drive.(On computers with an optional floppy drive.)10 Service Tag Used to identify your computer when you access the Dell Support website or calltechnical support.123149104171516611251381 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have aUSB printer, plug it into a USB connector.2 diagnostic lights (4) Use the lights to help you troubleshoot a computer problem based on thediagnostic code. For more information, see "Diagnostic Lights" on page 35.3 mouse connector Plug a standard mouse into the green mouse connector. Turn off the computer andany attached devices before you connect a mouse to the computer. If you have aUSB mouse, plug it into a USB connector.
