Error (129041): Input port DATAIN of atom "<node_name>_component|sd1" must be sourced by an atom which is placed in a common I/O location - Error (129041): Input port DATAIN of atom "<node_name>_component|sd1" must be sourced by an atom which is placed in a common I/O location Description You might see this error message in the Intel® Quartus® Prime Software when you are using the ALTIOBUF Intel® FPGA IP with the following settings: Module: As an output buffer. Configuration: Use differential mode Dynamic Delay Chains: Enable output buffer dynamic delay chain1 Resolution To work around this problem, add the following command to the.qsf file: set_instance_assignment -name FAST_OUTPUT_REGISTER ON -to <node_name>_component|sd1 Custom Fields values: ['novalue'] Troubleshooting FB: 460290; False ['Generic Component'] ['FPGA Dev Tools Quartus® Prime Software Standard'] novalue 16.1 ['Cyclone® V FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']