Patent ID: 6918078

Claim:
A system comprising: first, second, third and fourth modules; a circuit board including first, second, third, and fourth module connectors to receive the first and second modules, respectively; a first group of paths of conductors extending from the circuit board to the first module connector, to the first module, back to the first module connector, to the circuit board, to the second module connector, to the second module, back to the second module connector, to terminations, wherein the first group of paths include a first short loop through section in the first module and a second short loop through section in the second module, to each couple to stubs for corresponding first and second chips of the first and second modules; and a second group of paths of conductors extending from the circuit board to the third module connector, to the third module, back to the third module connector, to the circuit board, to the fourth module connector, to the fourth module, back to the fourth module connector, to terminations, wherein the second group of paths include a first short loop through section in the third module and a second short loop through section in the fourth module, to each couple to stubs for corresponding first and second chips of the third and fourth modules.