Server board burning prevention system and working method

Abstract

The invention provides a server board burning prevention system and a working method. The system comprises a power module, a board burning prevention chip, a BMC and a CPLD. The power supply module supplies power to different parts of the server through a parallel resistor by an output power supply; the anti-burning board chip is respectively connected with the output end and the output end of theresistor; the anti-burning board chip is connected with the CPLD; the CPLD is connected with the BMC, and the BMC is further connected with the anti-burning board chip and the power supply module; when overcurrent occurs in any power supply line, the burn-proof board chip outputs a stop operation signal to the CPLD. After the CPLD receives the interrupt signal, the CPLD sends the interrupt signalto the BMC, and the BMC judges an overcurrent address, stores a log and sends a power-off instruction to the power module. Based on the system provided by the invention, the invention further provides a working method of the anti-burning plate. The board burning prevention chip is additionally arranged, the abnormal position can be quickly positioned and recorded, meanwhile, the power output voltage is turned off, and the board burning phenomenon caused by the abnormal phenomenon is prevented.

Description

Technical field [0001] The invention belongs to the technical field of server power supply, and particularly relates to a server anti-burn board system and a working method. Background technique [0002] In the use of servers, various burn-in phenomena often occur, ranging from the burning of electronic components to the entire server on fire. No matter what kind of burn-in phenomenon, it will have a serious impact on the use of the server and cause users huge loss. There are many reasons for the server burn-in phenomenon. Poor PCB manufacturing process, damaged or abnormal electronic components, working environment exceeding component standards, poor connector contact, component service life, poor heat dissipation and other reasons have the opportunity to cause the server Burning, and the burning phenomenon is usually difficult to reproduce. For server designers, it is often very difficult to analyze, and the burn-in phenomenon cannot be reproduced 100%, especially for the mor...

AI Technical Summary

Problems solved by technology

When the operating current at a certain point inside the system is too large, and the accumulation temperature is too high, resulting in abnormal phenomena such as short circuit or component damage, the accumulation temperature here has exceeded the element before the large current generated by the abnormal phenomenon reaches the PSU overcurrent protection point. The ignition point of the device or PCB, resulting in the phenomenon of burning board

Unrecoverable damage to the server system, because the internal overcurrent protection point of the PSU power supply is too large, the internal overcurrent protection function of the PSU power supply cannot play an effective role in protection

like figure 1 A schematic diagram of the current causes of burning boards is given; there are many reasons for burning boards, and the direct manifestations of these reasons are the same, which will lead to excessive current and high temperature, which will trigger the occurrence of burning boards

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