Patent ID: 8503263

Claim:
A power supply system, comprising: a power supply supplying a first direct current voltage; a plurality of memory adaptor, each memory adaptor comprising a first ground terminal and a first power terminal, the first ground terminal and the first power terminal connected to the power supply; at least one memory module received in one of the memory adaptors, the at least one memory module comprising: a second ground terminal; a second power terminal, the second ground terminal and the second power terminal respectively connected to the first ground terminal and the first power terminal; a voltage regulator down connected to the power terminal and configured for converting the first direct current voltage into a second direct current voltage; and a storing unit connected the voltage regulator down and configured for storing data and reading or writing data when the storing unit receives the second direct current voltage, wherein the power supply system further comprises a plurality of pull-up resistors, each of the first ground terminal is connected to the power source via a corresponding pull-up resistor and configured for outputting loading signals; the first ground terminal of the corresponding memory adaptor outputs a low voltage level when the at least one memory module is received in a corresponding memory adaptor.