| 摘要 |
The present invention relates to a computer system and a power-saving method thereof. The computer system comprises a slot, a switch set, and a controlling module. An expansion card is capable of inserting into the slot. The switch set controls transmission of a power, a clock, and a bus signal to the slot. When activating a power-saving operation, the controlling module is capable of sending a controlling signal to command the switch set to cut off transmission of power, the clock, and the bus signal to the slot.
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