Intel® Quartus® Prime Pro Edition User Guide: Power Analysis and Optimization

ID 683174
Date 12/12/2022

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3.4.10. Unused Transceiver Channels

Transceivers in the device degrade over time unless you preserve them. The Intel® Quartus® Prime software generates a warning message if a design contains unused XCVRs.

You do not need to preserve transceivers under 8Gbps. For transceivers over 8Gbps, the best practice is to preserve if there is a possibility for future usage. Otherwise, you can turn the transceivers off. You enable unused transceivers through dynamic reconfiguration or a new device programming file​.