Computer system on and off test apparatus and method

A computer system on/off test method for testing a computer system, the comprising:

• a. outputting a power-on signal to control an external power supply to supply power to the computer system and to power on the computer system;
• b. detecting signal parameters of the computer system, and receiving a power-on status signal returned from the computer system;
• c. determining whether the power-on status signal is correct and the detected signal parameters of the computer system are within acceptable ranges correspondingly;
• d. outputting a power-off signal to control the external power supply to turn off the computer system after a predetermined time interval value in response to the power-on status signal is correct and the detected signal parameters of the computer system are within the acceptable ranges correspondingly;
• e. determining whether the number of the on/off tests is equal to a repetition value, wherein the process ends in response to the test time of the on/off test is equal to the repetition value, the process goes to step a in response to the number of the on/off tests has not reached the repetition value;
• and
• f. displaying the detected signal parameters and a comparing result with the corresponding acceptable ranges in response to the power-on status signal is not correct and the detected signal parameters of the computer system are not within the acceptable ranges correspondingly.