Abstract: The present disclosure provides a grouting and water-plugging device for a fractured rock in a mine coupling state and a test method, and relates to the technical field of rock mechanics testing. The device includes a pressurizer, a reservoir, a test box, and a grouting pump. The reservoir includes a temperature sensor and a pressing-water plate. The pressing-water plate is connected to the pressurizer through a pressurizing rod. A pressure measuring pipe and a drainage pipe are installed on an outer side of the reservoir. The reservoir is connected to a water pump through a water injection pipe. The test box includes a rock, a transverse force exerting plate, a longitudinal force exerting plate, a stress sensor and the temperature sensor. The longitudinal force exerting plate is provided with multiple water through holes. A sliding box door is hinged to a front wall of the test box. The pressure measuring pipe and the drainage pipe are installed on a rear wall of the test box.

Abstract: A mainboard and a server are provided. The mainboard includes: a board body, a preset number of Purley platform central processors, and one or more memories. The preset number of Purley platform central processors and the one or more memories are installed on the board body. The Purley platform central processors are sequentially connected with each other, and each of the memories is connected to one of the Purley platform central processors. Each of the memories is configured to receive to-be-burned data inputted from outside and transmit the to-be-burned data to the Purley platform central processor connected with the memory. Each of the Purley platform central processors is configured to burn the to-be-burned data when receiving the to-be-burned data transmitted by the connected memory connected with the Purley platform central processor, to have a function corresponding to the to-be-burned data.

Abstract: A system for improving a switching efficiency of a double network card NCSI management system is provided. The system includes an NCSI Switch which is a two-to-one data strobe device. The NCSI Switch includes three groups of data links A, B, and C. The group A of NCSI data is linked to a controller with an NCSI function, i.e., a BMC MAC module. The group B of data is linked to an onboard network card end, and the group C of data is linked to an external network card slot. The NCSI Switch further includes a Select pin connected to an in-position detection pin of the external network card slot via a logic conversion circuit.

Abstract: A mainboard and a server are provided. The mainboard includes: a board body, a preset number of Purley platform central processors, and one or more memories. The preset number of Purley platform central processors and the one or more memories are installed on the board body. The Purley platform central processors are sequentially connected with each other, and each of the memories is connected to one of the Purley platform central processors. Each of the memories is configured to receive to-be-burned data inputted from outside and transmit the to-be-burned data to the Purley platform central processor connected with the memory. Each of the Purley platform central processors is configured to burn the to-be-burned data when receiving the to-be-burned data transmitted by the connected memory connected with the Purley platform central processor, to have a function corresponding to the to-be-burned data.