Debugging and analysis of a new noise coupling mechanism in computer system

Modern memory system is running at higher data rates with growing complexity, which makes debugging memory related system failure increasingly challenging. In this paper, we report a new memory failure mechanism due to unexpected crosstalk and resonant effect. An innovative full channel modelling & simulation methodology is proposed, which utilize both the time domain and frequency domain analysis to identify the problem, and then precisely predict the failure pattern, as well as the maximum noise level. The analysis also leads to an effective low cost solution, which is further verified by lab measurement. Design guidance for future products is also discussed.