Error: The parameter MEM_CS_WIDTH (Number of chip-selects per device/DIMM) must be set to 2 or greater for RDIMM/LRDIMM devices - Error: The parameter MEM_CS_WIDTH (Number of chip-selects per device/DIMM) must be set to 2 or greater for RDIMM/LRDIMM devices Description You may experience the above error when the Memory Format option is set to R egistered DIMM for your DDR2 UniPHY-based controller in the Quartus® II software version 12.1 and later. The error occurs when the Number of chip-select per device/DIMM option is set to 1. Resolution The workaround is to generate the DDR2 UniPHY-based controller with two chip-selects and ignore the second chip-select signal from the controller. Custom Fields values: ['novalue'] Troubleshooting 2205732641 False ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 12.1 ['Arria® V GZ FPGA', 'Stratix® IV E FPGA', 'Stratix® IV GT FPGA', 'Stratix® IV GX FPGA', 'Stratix® V E FPGA', 'Stratix® V GS FPGA', 'Stratix® V GT FPGA', 'Stratix® V GX FPGA'] ['novalue'] ['novalue'] ['novalue']