8 Contents12 Adding and Replacing Parts . . . . . . . . . 139Before You Begin . . . . . . . . . . . . . . . . . . . . 139Recommended Tools . . . . . . . . . . . . . . . . 139Turning Off Your Computer . . . . . . . . . . . . . 139Before Working Inside Your Computer . . . . . . . 140Removing the Computer Cover and Front Panel . . . . 141Removing the Computer Cover . . . . . . . . . . . 141Removing the Front Panel . . . . . . . . . . . . . 143Replacing the Front Panel and Computer Cover . . . . 144Replacing the Front Panel . . . . . . . . . . . . . 144Replacing the Computer Cover . . . . . . . . . . . 145I/O Panel . . . . . . . . . . . . . . . . . . . . . . . . . 146I/O-Panel Components . . . . . . . . . . . . . . . 147Removing the I/O Panel . . . . . . . . . . . . . . 148Replacing the I/O Panel . . . . . . . . . . . . . . 149Processor . . . . . . . . . . . . . . . . . . . . . . . . 150Removing the Processor . . . . . . . . . . . . . . 150Installing the Processor . . . . . . . . . . . . . . 154Power Supply . . . . . . . . . . . . . . . . . . . . . . 160DC Connector Pin Assignments . . . . . . . . . . 160Replacing the Power Supply . . . . . . . . . . . . 169Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 169About the Battery . . . . . . . . . . . . . . . . . . 169Removing the Battery . . . . . . . . . . . . . . . 170Replacing the Battery . . . . . . . . . . . . . . . 171Memory . . . . . . . . . . . . . . . . . . . . . . . . . 172Fully Buffered DIMM (FBD) Memory Overview . . 173Memory Installation . . . . . . . . . . . . . . . . 173
