Figure 100 Installing the power interposer boarda. standoffs (2)b. power interposer boardc. fan cable connectord. screw (2)e. PSU cables to the system board (3)After you finish1. Install the power supply units.2. Follow the procedure listed in After working inside your system section.System boardA system board (also known as the motherboard) is the main printed circuit board found insystems. The system board allows communication between many of the crucial electroniccomponents of the system, such as the central processing unit (CPU) and memory, and alsoprovides connectors for other peripherals. Unlike a backplane, a system board contains significantnumber of sub-systems such as the processor expansion cards, and other components.Removing the system boardBefore you beginCAUTION Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat are shipped with your product.CAUTION If you are using the Trusted Program Module (TPM) with an encryption key, youmay be prompted to create a recovery key during program or System Setup. Be sure to createInstalling and removing system componentsDell PowerEdge R430 Owner's Manual 183
