| 摘要 |
A circuit for protecting a motherboard if a component is not connected properly to its power source, a startup circuit ( 50 ) connected to a switch, and a monitoring circuit ( 70 ) monitoring the status of the component. The startup circuit provides a control signal to a power supply ( 10 ) via the switch for controlling the power supply providing power to the motherboard. The monitoring circuit outputs a monitoring signal to the switch to control the switch to be on or off, so as to control the transfer of the control signal.
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