Memory Module Status Indication via LED Decoder
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Solution Overview
Problem
Conventional memory modules lack effective and cost-efficient methods for indicating memory module statuses, making debugging and failure analysis cumbersome and expensive due to the limitations of simple fault indication by BMCs.
Innovation Solution
A memory module status indication method involving a status data module, interface firmware, I/O control module, and decoder module, which reads and decodes status data to control visual indicators like LEDs, providing detailed status information through a UEFI code and I2C bus controller, facilitating efficient debugging and failure analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a BMC is used to indicate memory module status, then the status indication is provided, but the cost increases significantly
Solution Approach 1:
The patent extracts the status indication function from the expensive BMC and relocates it to the memory module itself through an integrated LED indicator and controller. This allows the memory module to independently provide status feedback without requiring a costly BMC, thereby reducing system cost while maintaining status indication effectiveness.
Solution Approach 2:
The memory module is designed to self-indicate its status through an integrated LED and controller that reads from the SPD chip. The module serves itself by providing status information without external intervention from a BMC, enabling cost-effective autonomous status indication.
2Ease of manufacture
If a simple fault-oriented LED is used, then the cost is reduced, but the debugging efficiency decreases due to lack of detailed failure type information
Solution Approach 1:
The patent segments the status indication into multiple colored LEDs, each representing different failure types or status conditions. This segmentation allows detailed debugging information to be conveyed through individual LED states, maintaining cost-effectiveness while significantly improving debugging efficiency through granular status information.
Solution Approach 2:
The patent utilizes different colors of LEDs to indicate various memory module statuses and failure types. By encoding status information through color combinations and LED patterns, the system provides detailed debugging information at minimal cost, enhancing productivity without increasing expense.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables low-cost, efficient, and detailed memory module status indication, enhancing debugging and failure analysis capabilities by providing specific failure type and status data, reducing the need for expensive BMCs.
Implementation Method 1
the status indication module comprises a light-emitting diode (LED) apparatus
Data Source
AI summary
Embodiments of the inventive subject matter include receiving, from an interface module, status data for a memory module, wherein the memory module includes a plurality of status indicators. Embodiments further include determining, based on the status data, a set of the plurality of status indicators to illuminate. Embodiments further includes generating, in accordance with the determining the set of the plurality of status indicators based on the status data, a plurality of commands for controlling illumination of the set of the plurality of status indicators. Embodiments further include transmitting the plurality of commands to circuitry of the memory module that controls the plurality of status indicators.