Method, device and system for monitoring connection state of external plug-in card

Abstract

The invention discloses a method, device and system for monitoring the connection state of an external card. After detecting that the external card is inserted into the external slot, the measured voltage value output by each Hall sensor in the external card is obtained; according to each Each abnormal measurement voltage value is determined from each measurement voltage value and the pre-stored normal voltage value; the position of the first golden finger pin pair connected abnormally in the external card is determined according to the preset rules and each abnormal measurement voltage value; wherein, pre-set The second gold finger pin pairs with corresponding polarities in the external slot are grouped, and the first gold finger pin pairs in the external card are divided into multiple measurement units, and each two adjacent measurement units are set For a Hall sensor, the number of first gold finger pin pairs in the measuring unit is the same as the number of second gold finger pin pairs in each group. The invention can realize the detection of the connection status of each golden finger pin in the external plug-in card, and is beneficial to improve the reliability of the system.

Description

Technical field [0001] Embodiments of the present invention relates to the field of computer technology, in particular to a monitoring method and apparatus for the state of the add-in card connection. Background [0002] At present, manufacturers usually choose to use the external interface in the server and the method of matching the external card to meet the customer's requirements for enhancing the performance of the server, and these plug-in cards interact with the CPU through the physical interface, improving the computing power and storage capacity of the server. [0003] However, in practical applications, due to the physical connection status problem between the gold finger of the add-in card and the external interface, it is impossible to intuitively determine whether the add-in card cannot be recognized, reduce the bandwidth, etc. In order to improve the reliability of the system, the PIN can be detected by leaving a bit on the gold finger of the add-in card to detect t...

AI Technical Summary

Problems solved by technology

[0005] According to the actual application situation, some external cards occupy the Present detection PIN as the signal transmission PIN. The CPLD on the motherboard side can only judge the presence of the slot card by monitoring a certain PIN. In addition, by detecting the Present signal method , can only ensure that the current PIN connection is normal, and cannot rule out the possibility of other PIN connection abnormalities caused by damage to other PINs in the external slot, so it cannot effectively reflect the overall connection status of the external card

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