Circuit Boards

Circuit Boards are items found on Engineering Deck in the Chemical Storage Room. Several visually identical Boards can be found on the shelves, but the player only needs the one labelled 45m/dEx. It should be inserted into the Systems Monitoring Unit in Engineering B's Command Control, so that the radioactive fuel is dealt with and the door sealing access to the Engine Core can be opened.

The Circuit Boards, like half of the rest of the equipment aboard the Von Braun, combine cutting-edge technology and a haphazard jury-rig quality. Some of the logic chips are marked with experimental serial numbers, and there are smearings of solder and Nanite-grown junctions everywhere.

Trivia

 * Circuit Boards other than 45m/dEx are literally the most useless items in the game. There is no benefit to lugging them around in your inventory (especially since they're non-stackable), unless for blocking horizontal doors. Inserting the wrong type of the Board in the Systems Monitoring Unit will just result in this Board being dropped. They aren't used for anything else later on and cannot be recycled.