Abstract: Systems and methods associated with a self-testing module are described. The module may self control an environmental stress screen (ESS) apparatus and a self-test. One exemplary system includes a substitution test apparatus configured to hold a unit under test (UUT) configured with a self-test logic. The substitution test apparatus facilitates operably connecting the UUT to peripheral computer components so that the UUT and the peripheral components form a computing system when operably connected. The system may include an ESS apparatus for selectively and controllably applying an environmental stress to the UUT, a process control logic for controlling the substitution test apparatus, the UUT, the self-test logic, and/or the ESS apparatus.

Abstract: A printed circuit board comprises a plurality of inner and outer holes. An electrically conductive barrel may be disposed in each outer hole, and an electrically conductive barrel and a probe may be disposed in each inner hole. The electrically conductive barrels may protrude from the bottom of the interface board at substantially similar fixed heights. Transfer paths may couple at least some of the barrels in the outer holes to selected barrels in the inner holes.