Abstract: A computer system (6) includes a printed circuit board (302), a microprocessor chip (102), a peripheral unit chip (110), a card interface chip (112), and a display controller chip (114) mounted on the printed circuit board (302) at vertices of a quadrilateral (303). A clock buffer chip (180) is mounted on the printed circuit board (302) in the interior of the quadrilateral (303) and connected to each of the microprocessor chip (102), peripheral unit chip (110), card interface chip (112), and display controller chip (114). Other circuits, systems, and methods are disclosed.