im just using grease in the socket and on the cpu.
once mobo is hot and running those caps around the socket act like a heater element keeping the electonics warm so no condensation forms.
dont let the cooler get below -40c though to first boot the pc otherwise the board around the socket get cold and condensation forms and cant boot pc.
these is where a controller helps.

i have put small bits of enclosed foam in all the small air gaps of the metal 775 clip part of the socket.

this is how i insulate my mobo, air tight so no condensation.