Patent ID: 7884631

Claim:
A multi-level test system for testing memory modules on movable motherboards comprising: a plurality of motherboards, each motherboard in the plurality of motherboards being a main board for a computer using memory modules as a memory; test sockets on the plurality of motherboards, the test sockets for receiving memory modules for testing; a loader-unloader for inserting memory modules into test sockets on motherboards in the plurality of motherboards when the motherboards are at a loading station; a parking-testing structure having a plurality of parking levels, each parking level for temporarily holding a motherboard in the plurality of motherboards during testing of the memory modules in the test sockets; a plurality of test stations, for connecting to motherboards in the plurality of motherboards and for activating the motherboards to test the memory modules inserted into the test sockets on the motherboards; wherein each parking level in the plurality of parking levels has a test station in the plurality of test stations that connects to a motherboard in the plurality of motherboards that is currently parked on each parking level; a conveyor for moving the plurality of motherboards from the loading station to the parking-testing structure, and for moving the plurality of motherboards from the parking-testing structure to the loading station after testing by the plurality of test stations, whereby the memory modules are inserted into motherboards that are moved by the conveyor to the parking-testing structure for testing, and wherein the conveyor moves motherboards back to the loading station after testing.