Dual bios circuit
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsJUI-TING HUNG, CHIH-MING KUO, MING-YI SHIH
Life of this patent
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Abstract
A dual BIOS circuit includes a first BIOS chip, a second BIOS chip, a power supply, and a switch. The first BIOS chip is connected to a Southbridge chip of a motherboard via a bus. The second BIOS chip is connected to the Southbridge chip of a motherboard via another bus. The power supply is connected to signal pin of the Southbridge chip. The switch includes a handle. The first terminal of the switch is connected to the a detecting pin of the Southbridge chip. The second terminal of the switch is connected to the power supply. The third terminal of the switch is grounded. The first or second BIOS chip is selected to operate according to the voltage level at the detecting pin of the Southbridge chip.
Claims6
A dual BIOS circuit comprising:
- a first BIOS chip connected to a Southbridge chip of a motherboard via a bus;
- a second BIOS chip connected to the Southbridge chip of a motherboard via another bus;
- a power supply connected to a signal pin of the Southbridge chip;
- and
- a switch comprising a handle, a first terminal of the switch connected to a detecting pin of the Southbridge chip, a second terminal of the switch connected to the power supply, a third terminal of the switch being grounded, wherein the first terminal is selectively connected to the second terminal or the third terminal via operating the handle, the first or second BIOS chip is selected to operate according to the voltage level at the detecting pin of the Southbridge chip.
Dependencies are inferred from the claim text.