Patent ID: 9600370
Date: 2017-03-21
CPC Classifications: G06F

Claim:
1. A server system, comprising: a first BIOS chip; a second BIOS chip; a platform controller electrically connected to a first multi-way selector, the first multi-way selector being electrically connected to the first BIOS chip and the second BIOS chip; and a baseboard management controller electrically connected to a second multi-way selector, the second multi-way selector being electrically connected to the first BIOS chip and the second BIOS chip; wherein the platform controller is electrically connected to the baseboard management controller, for communication of control messages; wherein the platform controller comprises at least one first GPIO pin electrically connected to a selection pin of the first multi-way selector, and the baseboard management controller comprises at least one second GPIO pin electrically connected to a selection pin of the second multi-way selector; wherein each of the first multi-way selector and the second multi-way selector comprises a plurality sets of output pins, and a gating signal of either of the first multi-way selector and the second multi-way selector is preset as an effective signal for selecting a first set of the output pins among the plural sets; wherein the platform controller communicates with the first multi-way selector through a first SPI signal and at least one first GPIO signal, and the baseboard management controller communicates with the second multi-way selector through a second SPI signal and at least one second GPIO signal; wherein the platform controller selectively turns on the gating, signal of the first multi-way selector through the first GPIO signal so as to transmit the first SPI signal to either the first BIOS chip or the second BIOS chip, the baseboard management controller selectively turns on the gating signal of the second multi-way selector through the second GPIO signal so as to transmit the second SPI signal to either the first BIOS chip or the second BIOS chip, and when the platform controller selectively turns on the gating signal of the first multi-way selector through the first GPIO signal, the baseboard management controller prohibits the grating signal of the second multi-way selector from being selectively turned on, by way of the second GPIO signal.