Twin-channel server mainboard main-slave CPU switching device and switching control method thereof

A switching device and control method technology, applied in the direction of instruments, response error generation, electrical digital data processing, etc., can solve problems such as master-slave CPU judgment, and achieve good promotion and use value, easy processing, and reasonable design effects

Inactive Publication Date: 2016-06-29
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent cannot quickly and effectively judge the loading status of the master-slave CPU and switch between the master-slave CPU.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Twin-channel server mainboard main-slave CPU switching device and switching control method thereof
  • Twin-channel server mainboard main-slave CPU switching device and switching control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] as attached figure 1 Shown, the master-slave CPU switching device of two-way server motherboard of the present invention, its structure comprises CPU0, CPU1, high-speed SWICH switch, PCH chip and logic processing device, the switching position of described high-speed SWICH switch comprises SW0 end and SW1 end; CPU0 and CPU1 are respectively connected to the SW0 and SW1 ends of the high-speed SWICH switch through the DMI bus, and the high-speed SWICH switch is respectively connected to the PCH chip and the logic processing device; at the same time, both CPU0 and CPU1 are connected to the logic processing device; the logic processing device is used to detect CPU0 and CPU1 loading situation. CPU0 transmits the CPU0-PRESENT-N signal to the logic processing device, and CPU1 transmits the CPU1-PRESENT-N signal to the logic processing device. The DMI bus is connected to the DMI ports of CPU0 and CPU1 respectively. The DMI bus adopts the DMIX4 bus.

Embodiment 2

[0036] as attached figure 2 Shown, a kind of two-way server motherboard master-slave CPU switching control method of the present invention comprises the steps:

[0037] (1) The AUX power supply on the motherboard is powered on, and the logic processing device starts to work;

[0038] (2) Judging by the logic processing device, the loading status of CPU0 and CPU1:

[0039] ①The logic processing device judges whether CPU0 and CPU1 are loaded at the same time according to the detected CPU0-PRESENT-N signal and CPU1-PRESENT-N signal validity:

[0040] (a) If both the CPU0-PRESENT-N signal and the CPU1-PRESENT-N signal are valid, it is judged that CPU0 and CPU1 are loaded at the same time, and at this time, the high-speed SWICH switch gives up switching;

[0041] (b) If the CPU0-PRESENT-N signal and the CPU1-PRESENT-N signal are not valid at the same time, it is judged that CPU0 and CPU1 are not loaded at the same time, and at this time, go to step ②;

[0042] ②. The logic proc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a master-slave CPU switching device and a switching control method for a two-way server main board, which belongs to the server main board. Switch from CPU. The technical solution is: (1) a master-slave CPU switching device for a dual-way server motherboard, including CPU0, CPU1, a high-speed SWICH switch, a PCH chip, and a logic processing device, and the switching positions of the high-speed SWICH switch include SW0 and SW1; CPU0 and CPU1 are respectively connected to the SW0 end and SW1 end of the high-speed SWICH switch through the DMI bus. (2) A master-slave CPU switching control method for a dual-way server motherboard, comprising the following steps: (1) AUX power supply on the motherboard is powered on, and the logic processing device starts to work; (2) Judging by the logic processing device, CPU0 and CPU1 loading situation.

Description

technical field [0001] The invention relates to a server main board, in particular to a master-slave CPU switching device and a switching control method for a two-way server main board. Background technique [0002] In a dual-socket server motherboard, the CPU is divided into a master CPU and a slave CPU. The main CPU and the PCH are interconnected through the DMI bus. The slave CPU is interconnected with the master CPU through the QPI bus. When only one CPU is used on the mainboard of a dual CPU server, users often cannot distinguish the position of the master and slave CPUs, resulting in the problem that the system cannot be started, and the CPU has to be reloaded, which affects work efficiency and wastes labor costs. [0003] The patent document whose patent number is CN102520768B discloses a kind of blade server motherboard. Each channel inserts 2 DDR memory; South bridge chip, described south bridge chip is connected with described CPU respectively by PCIE bus and DM...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F11/1428
Inventor 唐明鹏耿士华
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap