# Convert Engines to Master Engines and Virtual Engine elements

You can use a conversion tool to change a Single Engine or Engine Cluster element to a Master Engine and Virtual Engine elements.

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The Master Engine must always be based on a Engine. The Virtual Engines can only be in the Virtual Engine role. Only Single Engines or Engine Clusters that are running on 64-bit hardware can be converted to Master Engines and Virtual Engines.

Single Engines and Engine Clusters with the following configurations cannot be converted to Master Engines and Virtual Engines:

- Engine Clusters that have a CVI on the Control Interface
- Engine Clusters that have a CVI on the Heartbeat Interface
- Single Engines that have ADSL Interfaces
- Single Engines that have Wireless Interfaces
- Single Engines that have a dynamic IP address
- Single Engines or Engine Clusters that have a dynamic Contact Address
- Single Engines or Engine Clusters that have DHCP settings on the interface for communication with the Management Server