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## Remove the Main Module Motherboard

The main module motherboard is a cold-service component that can be replaced only by authorized service personnel.

1. Remove the main module from the server.

   See Remove the Main Module.

2. Make a note of the locations of the components in the main module before removing any of them.

   The server software keeps track of the location of some components, such as the hard drives and RAID expansion modules, so you might have to reinstall the software on some components if they are moved to different locations in the main module. Make a note of the location of the components in the main module and install these components in the same locations in the new main module so that you do not have to reinstall software on any of these components.

3. Take the necessary ESD precautions.

   See Prevent ESD Damage.

4. Remove the following components from the main module:

   - Remove a Hard Drive

   - Remove the RAID Expansion Module

   - Remove the Service Processor Card

   - Remove the System Battery

   - Remove the Front I/O Assembly

   - Remove a Storage Backplane

5. Remove the system configuration PROM from the faulty motherboard.

   See Remove the System Configuration PROM. Put the system configuration PROM aside to install it on the replacement motherboard.

6. Install the replacement motherboard in the server.

   See Install the Main Module Motherboard.

##### Related Information

- Main Module Motherboard Overview

- Main Module Motherboard LEDs

- Locate a Faulty Main Module Motherboard

- Install the Main Module Motherboard

- Verify Main Module Motherboard Functionality

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