Board end structure and method of realizing fan hot-plug
A hot-swapping and fan technology, applied in the field of computer servers, can solve problems such as broken chips and failure to obtain the status of fans normally, and achieve the effects of low cost, long-term stable operation, and easy promotion
Inactive Publication Date: 2018-02-16
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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Problems solved by technology
[0005] When the fan is hot plugged, it is easy to generate a pulse voltage, and the I2C chip, such as the TCA9555 in the attached figure, only supports a maximum voltage of 5.5V. When the pulse voltage generated by the fan hot plug is greater than 5.5V, the TCA9555 chip will be turned on Bad, which makes the BMC unable to obtain the status of the fan normally
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[0022] In order to enable those skilled in the art to better understand the solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] as attached figure 2 As shown, the present invention provides a board end structure for realizing fan hot plugging, including a main board connected to the fan terminals of the hot-swappable fan. The main board is equipped with a BMC controller, an I2C conversion chip, and an electric controller, and the fan terminals pass through The PRES signal communicates with the electrical controller. The electrical controller is configured...
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The invention discloses a board end structure and a method of realizing fan hot-plug. The structure includes a main board connected with a fan terminal of a hot-plug fan. A BMC controller, an I2C conversion chip and an electrical controller are configured on the main board. The fan terminal is in communication connection with the electrical controller through a PRES signal. The electrical controller is configured between the fan terminal and the I2C conversion chip. The I2C conversion chip is in communication connection with the BMC controller through an I2C signal. The above-mentioned PRES signal refers to a presenting signal which is a signal indicating whether the fan is in position. Compared with the prior art, the board end structure and the method of realizing fan hot-plug of the invention enable, through improving an original fan PRES signal line, a server system to realize hot-plug of the fan, effectively realize filtering on pulse voltage generated by plugging of the fan terminal, realize protection on the back-end I2C conversion chip, and ensure long-term and stable running of a line.
Description
technical field [0001] The invention relates to the technical field of computer servers, in particular to a board end structure and method for effectively isolating pulse voltage and realizing fan hot plugging. Background technique [0002] In recent years, with the rapid development of the server market, the customers it targets are becoming more and more diversified, and the functional requirements of different customers for the server are also constantly changing. It is constantly increasing, and consequently, the requirements for server fans are also getting higher and higher. [0003] Generally, server fans are connected to the mainboard through fan terminals, and fans generally support hot swapping, which facilitates fan replacement and maintenance. [0004] In the prior art, the server fan consists of the following signals: PWR, GND, PWM, PRES, TACH0, TACH1. Among them: the PRES (abbreviation of PRESENT) signal is used to indicate the status of the fan. By connectin...
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IPC IPC(8): G06F13/40
CPCG06F13/4068G06F13/4081
Inventor 王栋
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD