In example implementations, a computing device is provided. The computing device includes an expansion interface that includes a plurality of slots. A first add-in card is connected to a first slot of the plurality of slots. A second add-in card is connected to a second slot of the plurality of slots. The computing device includes a processor communicatively coupled to the expansion interface. The processor is to detect that the first add-in card is compatible with a power savings control signal and that the second add-in card is not compatible with the power savings control signal, disable the power savings control signal to the second slot, and transmit the power savings control signal to the first slot when the first add-in card goes into a power savings mode.