USB Board 11923USB BoardWARNING: Before working inside your computer, read the safety informationthat shipped with your computer. For additional safety best practices information,see the Regulatory Compliance Homepage atwww.dell.com/regulatory_compliance.CAUTION: Only a certified service technician should perform repairs on yourcomputer. Damage due to servicing that is not authorized by Dell™ is not coveredby your warranty.CAUTION: To avoid electrostatic discharge, ground yourself by using a wristgrounding strap or by periodically touching an unpainted metal surface (such as aconnector on your computer).CAUTION: To help prevent damage to the system board, remove the main battery(see "Removing the Battery" on page 13) before working inside the computer.Removing the USB Board1 Follow the instructions in "Before You Begin" on page 9.2 Remove the battery (see "Removing the Battery" on page 13).3 Remove the module cover (see "Removing the Module Cover" onpage 15).4 Remove the memory module(s) (see "Removing the Memory Module(s)"on page 17).5 Follow the instructions in step 5 in "Removing the Hard Drive(s)" onpage 27.6 Remove the optical drive (see "Removing the Optical Drive" on page 33).7 Remove the palm-rest assembly (see "Removing the Palm-Rest Assembly"on page 37).8 Remove the keyboard (see "Removing the Keyboard" on page 43).9 Remove the display assembly (see "Removing the Display Assembly" onpage 59).10 Remove the Mini-Card(s) (see "Removing the Mini-Card(s)" on page 21).