Power distribution analysis for IBM eServer system integration optimization

Server system design is strongly influenced by power delivery aspects. Multiple requirements and limitations must be taken into consideration. This requires an appropriate DC analysis workflow. This contribution outlines a DC strategy used for IBM eServer design. The strategy is divided into two parts, PrePD and PostPD. PrePD type of analysis is used for system high-level design and optimization including parts selection, number of board layers, module sizing and placement on board, interface pin pattern optimization for both module to board and board to backplane. PostPD analysis is used for first level packaging design optimization and verification. The combination of PrePD and PostPD analysis serves as an efficient and useful tool, shown by the examples of various applications, for server power delivery system design.