iv88 How and when do I contact the IBM PCHelpCenter?93 How and when do I purchase additional support?97 International Warranty Service - not available99 Adding and removing hardware101 Preparing to work with the computer102 Removing and replacing the cover104 Adding and removing drives108 Adding and removing adapter cards111 Identifying system board components112 Upgrading the system memory115 Replacing the system battery117 Warranties and Notices119 Warranty statements136 Notices143 Index