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Undershoot test method and device for server board card

A technology of a server board and a test method, applied in the server field, can solve the problems of non-compliance with output voltage waveform smoothing, output voltage jumping, etc.

Active Publication Date: 2019-02-01
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the particularity of the server board, it is necessary to ensure that the output voltage waveform is smooth and monotonous in the process of rising and falling. However, when using the above method to perform an undershoot test on the server board, the output voltage will jump during the falling process, which does not meet the requirements. Requirements for smooth and monotonous output voltage waveform

Method used

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  • Undershoot test method and device for server board card
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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] In order to ensure that the instantaneous impact of the output voltage of VR on the circuit in the server board is within the specified range, it is necessary to perform an undershoot test on the server board. However, the existing undershoot test method will make the server board during the undershoot test. , the output voltage jumps in the process of falling, which does not meet the requirements of smooth and monotonous output voltage. The purpose of ...

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Abstract

The present application discloses an Undershoot test method for a server board, includes powering on target server board, pulling first test current and second test current on input capacitance and output capacitance of VR in target server board through first load meter and second load meter respectively to make target server board enter Undershoot test state; The target oscilloscope is used to record the output voltage change of Undershoot test when the target server card is powered off. By the method of the present application, the problem that the output voltage of the target server card jumps and is not smooth during the Undershoot test can be effectively avoided. Accordingly, the Undershoot testing device, medium and device of the server card disclosed in the present application alsohave the above-mentioned beneficial effects.

Description

technical field [0001] The invention relates to the technical field of servers, in particular to an Undershoot test method, device, medium and equipment for server boards. Background technique [0002] During the development process of the server board, a series of strict tests are required to verify whether its various functions meet the design requirements. In order to ensure that the instantaneous impact of the output voltage of the server board on the circuit is within the specified range, it is usually necessary to perform an undershoot test on the VR (Voltage Regulation, voltage conversion chip) in the server board. [0003] In the prior art, when performing an undershoot test on a server board, it is usually necessary to lead two wires at both ends of the output capacitor of the VR to the load meter, and then weld two flying wires at both ends of the output capacitor to connect to the differential probe of the oscilloscope. on the stick, and set the oscilloscope to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/22G06F11/26
CPCG06F11/2284G06F11/26
Inventor 高玉
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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