Device and method for diagnosing fault in main board

Abstract

The invention discloses a device for diagnosing a fault in a main board, which comprises an information storage module, a fault diagnosis module, a control module and an information display module, wherein the information storage module pre-stores a POST code and text information corresponding to the POST code; the fault diagnosis module is used for scanning a fixed address port on a bus in real time and converts data in the fixed address port into the POST code by the decoding of a decoder; and the control module is used for receiving the POST code and comparing the POST code with the POST code stored in the information storage module to query the text information corresponding to the POST code and displaying the POST code and the text information corresponding to the POST code through the information display module. The invention also provides a method for diagnosing the fault in the main board. The device and the method are simple and easy in operation process and reduce time for finding the fault.

Description

technical field [0001] The invention relates to an electronic product fault diagnosis device and a diagnosis method thereof, in particular to a motherboard fault diagnosis device and a diagnosis method thereof. Background technique [0002] The computer POST (Power On Self Test) process refers to the process in which the computer's BIOS (Basic Input-Output System) self-tests each module of the computer itself when the computer is powered on. POST information refers to the information obtained by BIOS detecting each module during the POST process, including: whether the module exists, whether the module works normally, whether the initialization of each module is completed, CPU (Central Processing Unit, central processing unit) type, CPU main frequency, Memory type, memory capacity, hard disk capacity, BIOS version information and computer serial number, etc. [0003] With the continuous improvement of the computer industry level and the increasing dependence of human produc...

AI Technical Summary

Problems solved by technology

[0005] Now the motherboard fault diagnosis device is often used in the development and testing of the motherboard, but the current motherboard fault diagnosis device on the market can only display the POST code during the startup process of the motherboard on the display screen of the diagnostic device. Debugging and testing personnel need to It takes time to query the text information corresponding to the POST code to quickly get the description of the error message corresponding to the POST code and to know the source of the fault, which is a waste of time and inconvenient to use

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