Patent ID: 8305107

Claim:
A system for testing a power supply unit comprising: a test sub-system for performing test and recording test results; and a test control sub-system connected to the test sub-system and the power supply unit, the test control sub-system capable of selecting test items to test the power supply unit and setting an execution sequence of the test items; wherein the test items comprises a standby test item for testing the power supply unit at a standby state, a normal test item for testing the power supply unit at a normal state, and an over temperature protection test item for testing the power supply unit at an over heated state; the test control sub-system is capable of automatically switching the standby test item to the normal test item after a first predetermined time period for executing the standby test item, and switching the normal test item to the over temperature protection test item after a second predetermined time period for executing the normal test item; wherein the test control sub-system comprises a fan switch circuit for switching on or off a fan of the power supply unit thereby enabling the power supply unit at the over heated state during executing the over temperature protection test item; the test control sub-system further comprises a microcontroller unit connected to the test sub-system and the power supply unit, and a Power supply unit On (PSON) signal switch circuit connected to the microcontroller unit, the PSON signal switch circuit is controlled by the microcontroller unit and configured to switch a PSON signal on the power supply unit between a low level and a high level.