Patent ID: 9690342
Date: 2017-06-27
CPC Classifications: G06F

Claim:
1. A computer system comprising: a display comprising a video interface; a motherboard comprising a super input-output (SIO) chip comprising a power-on signal pin; a power supply unit (PSU) configured to generate a power-good signal; and a power circuit comprising: the computer system configured such that, in response to the display being turned on, the video interface outputs a high level signal to turn on the first switch unit, the power supply powers the oscillator through the first switch unit, the oscillator operates and outputs a high level signal to turn on the second switch unit, the power-on signal pin of the SIO chip receives a low level signal, the motherboard is turned on, the power-good signal outputted from the PSU turns to a high level, the third switch unit is turned on, the first switch unit is turned off, the oscillator does not operate, the second switch is turned off, the power-on signal pin of the SIO chip receives a high level signal, and the motherboard operates.