Patent ID: 8607100

Claim:
A motherboard testing device configured for testing a motherboard, wherein the motherboard comprises a first memory channel, a second memory channel, and a central processing unit (CPU), the first memory channel comprises a first slot and a second slot, the second memory channel comprises a third slot and a fourth slot; the motherboard testing device comprising: a first memory module received in the first memory slot; a second memory module received in the second memory slot; a third memory module received in the third memory slot; a fourth memory module received in the fourth memory slot; a switching chip comprising: a plurality of input pins respectively electrically to the first memory module, the second memory module, the third memory module, and the fourth memory module; a plurality of output pins corresponding to the input pins and electrically to the CPU; and a controlling pin; a microcontroller electrically connected to the controlling pin, and configured for forming a plurality of combination modes of the memory slots by electrically combining the four memory slots, and gives a serial number to each combination mode; the microcontroller further configured for controlling the switching chip to electrically connect the memory slots in a particular combination mode to the CPU, and to disconnect the other memory slots not in the particular combination mode from the CPU; a testing module electrically connected to the CPU, and configured for testing whether the CPU control each of the memory modules received in the memory slots comprised in each combination mode to work at a correct work mode proper for the corresponding combination mode.