circuit board into a AeroDaq 6180

i am trying to retrofit a thermocouple circuit board into a AeroDaq 6180. The unit already has on thermocouple input board in slot 1 & 2 and a relay board. i installed the board into slot three following the instructions. connected all the ribbon cables. wiring from slot one to three then to the relay board. when i powered up the unit there wasn't any prompts to Auto configure. also when i applied a input to slot one board it wasnt reading. is there something i could be missing ?
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