Replacing a processorMake sure the processor is fully seated in its socket and that the goal postlatches are engaged.Importantv Make sure the air baffle is installed to prevent processor overheating.v If the processor is not installed correctly, the system board and theprocessor can be damaged.Replacing a system boardImportantBefore replacing a system board, back up Asset information withPC-Doctor by using the “Asset EEPROM backup” on page 40.Notes1. The BIOS and Vital Product Data (VPD) for the computer you areservicing must be installed on the new system board (FRU) after it isinstalled in the computer. To do this, you must run the Flash Updateprogram using the Flash Update diskette. See “BIOS levels” onpage 49, “Vital product data” on page 47, and “Flash (BIOS/VPD)update procedure” on page 50.2. Always ensure the latest level of BIOS is installed on the computer. Adown level BIOS may cause false errors and unnecessary replacementof the system board.3. The processor is a separate FRU from the system board and is notincluded with the system board FRU. If you are instructed to replacethe system board, use the following procedure.a. Remove the processor from the old system board and install it onthe new system board.b. Remove any of the following installed options on the old systemboard, and install them on the new system board.v Memory modulesc. Ensure that the new system board jumper settings match the oldsystem board jumper settings.d. If the new system board does not correct the problem, reinstallthe options on the old system board, reinstall the old systemboard, then replace the processor.Chapter 2. Types 6568/6569/6648/6649 45
