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A kind of undershoot test method and device of server board

A technology of server board and test method, which is applied in the field of servers and can solve problems such as non-compliance with output voltage waveform smoothness, output voltage jump, etc.

Active Publication Date: 2020-07-24
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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  • A kind of undershoot test method and device of server board
  • A kind of undershoot test method and device of server board
  • A kind of undershoot test method and device of server board

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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

An Undershoot test method and device for a server board. The method comprises: powering on a target server board, and respectively pulling a first test current and a second test current to an input capacitor and an output capacitor of VR in the target server board by means of a first load meter and a second load meter, so that the target server board enters an Undershoot test state; and powering off the target server board, and recording a change in output voltage of the Undershoot test by means of a target oscilloscope. By means of the method of the present application, the problems of the output voltage of a target server board jumping and not being smooth during an Undershoot test can be effectively avoided.

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 Patents(China)
IPC IPC(8): G06F11/22G06F11/26
CPCG06F11/2284G06F11/26
Inventor 高玉
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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