70 Adding Partsw w w . d e l l . c o m | s u p p o r t . d e l l . c o m Back View124149105112138151673161 cover thumbscrew Your computer may not have a cover thumbscrew.2 mouse connector Plug your computer’s PS/2 mouse into the green mouse connector. Turn off thecomputer and any attached devices before you connect a mouse to the computer. (Ifyou have a USB mouse, see "USB 2.0 connectors" in this table.)3 diagnostic lights (4) Use the lights to help you recognize a diagnostic code that can tell you how totroubleshoot a computer problem (see page 54).4 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.5 line-in connector Use the blue line-in connector to attach a record/playback device such as a cassetteplayer, CD player, or VCR.6 cover latch Your computer may not have a cover latch.7 network adapterconnectorConnect a network cable to the network adaptor connector.8 PCI card slots (3) Use these slots for a PCI card, such as a modem.9 USB 2.0 connectors (4) Connect a USB device such as a mouse, keyboard, printer, joystick, or speaker systeminto any of the USB connectors.10 microphone connector Use the pink microphone connector to attach a personal computer microphone forvoice or musical input to a sound or telephony program.
