According to one embodiment, a system for retaining M bits of state data of an integrated circuit during power down includes M serially coupled scan flip flops divided into MN groups, where the M scan flip flops are able to saverestore the M bits of state data. An air convecting conduit is in communication with a plurality of injecting orifices formed in a peripheral wall of the bath. Unslotted threads may increment or decrement a shared unslotted reference counter.