■Turn off the computer, remove the cover, and make sure that all cables inside the case are attached securely. Also, make sure that the colored cable edges are aligned correctly and that the connectors didn’t miss any pins. Disconnect and reconnect the cables. Close the case as described in Chapter 3, reconnect the modem and power cords, then turn on the computer.
■Turn off the computer, remove the cover and, if you have the proper test equipment, make sure that the new battery has power. (Although unlikely, your new battery may be defective.) Close the case as described in Chapter 3, reconnect the modem and power cords, then turn on the computer.
38System Components