How can I improve I/O timing in Intel® Arria® 10 devices? - How can I improve I/O timing in Intel® Arria® 10 devices? Description For Arria® 10 devices you can turn ON the AUTO DELAY CHAIN option via the Advanced Fitter Settings Dialog Box. In the Quartus® II software version 15.0 Update 2 and earlier, the default option is OFF. Resolution This will be set to ON by default in Intel® Quartus® II software 15.1. Custom Fields values: ['novalue'] Troubleshooting 1408194653 False ['Generic Component'] ['FPGA Dev Tools Quartus II Software'] 15.1 14.0a10 ['Arria® 10 GT FPGA', 'Arria® 10 GX FPGA', 'Arria® 10 SX FPGA'] ['novalue'] ['novalue'] ['novalue']