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#### Main Module Motherboard Overview

When replacing the main module motherboard, remove the service processor and System Configuration PROM from the old motherboard and install these components on the new motherboard. The service processor contains the Oracle ILOM server configuration data and the System Configuration PROM contains the server host ID and MAC address. Transferring these components will preserve the server-specific information stored on these modules.

System firmware consists of two components: a service processor component and a host component. The service processor component is located on the service processor and the host component is located on the motherboard. In order for the server to operate correctly, these two components must be compatible.

After replacing the motherboard, the host firmware on the motherboard might be incompatible with the service processor firmware on the service processor that you transferred to the new motherboard. In this case, the server firmware must be loaded as described in Install the Main Module Motherboard.

##### Related Information

- Main Module Motherboard LEDs

- Locate a Faulty Main Module Motherboard

- Remove the Main Module Motherboard

- Install the Main Module Motherboard

- Verify Main Module Motherboard Functionality

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