Inside View of Your ComputerSystem Board ComponentsCAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.CAUTION: To avoid electrical shock, laceration by moving fan blades, or other unexpected injuries, always unplug your computer from theelectrical outlet before removing the computer cover.NOTICE: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board.1 drives bay (CD/DVD, floppy, and hard drive) 2 power supply3 system board 4 card slots5 heat sink assembly 6 front I/O panel1 internal speaker connector(INT_SPKR)2 processor connector (CPU)3 processor power connector 4 memory module connectors