A system and method for supporting automatic opening and closing of pcie clock

Abstract

The present invention provides a system and method for supporting the automatic opening and closing of a PCIE clock. The system includes a BMC, an in-position detection module, a clock buffer module, a hard disk backplane and a PCIE adapter card; the in-position detection module is connected with several on-board PCIEs. The clock buffer module is connected with several clock expansion interfaces; the BMC obtains the device presence status of the onboard PCIE slot, PCIE adapter slot and hard disk interface through the presence detection module and CPLD, and then uses the clock buffer module to check the device presence status of the device. The clocks of the PCIE slots, PCIE adapter slots, and hard disk interfaces that are not in place are turned on, and the clocks of the PCIE slots, PCIE adapter slots, and hard disk interfaces that are not in place are turned off. The invention automatically closes the onboard PCIE slot, the PCIE transfer slot and the clock channel corresponding to the hard disk interface where no PCIE device is deployed, saves power, avoids electromagnetic interference, and improves server stability.

Description

technical field [0001] The invention belongs to the technical field of PCIE clock control, and in particular relates to a system and method for supporting automatic opening and closing of a PCIE clock. Background technique [0002] With the rapid development of the Internet, the number of servers deployed is also increasing exponentially; a large number of servers provide the computing foundation for the network, but at the same time consume a high amount of electricity. And in today's rising energy costs, server energy-saving management has become the focus of many Internet manufacturers. A large number of interfaces are designed for PCIE devices in the server system. Whether or not to deploy PCIE devices on these interfaces depends on different configurations. Each interface is designed with a 100M clock for the PCIE device and is usually turned on. In some simple configurations, No device is deployed on these PCIE interfaces, but the clock is turned on, which will cause ...

AI Technical Summary

Problems solved by technology

[0004] For the above-mentioned servers in the prior art, a clock is designed for each PCIE device. When the PCIE interface is not deployed, the clock that is turned on causes power waste and brings the defects of electromagnetic radiation. The present invention provides a device that supports the automatic opening and closing of the PCIE clock. System and method to solve the above technical problems

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