PCIe Boundary-Scan Testing for Server Motherboards
Application Notes
Modern server motherboards rely on dense PCIe architectures, making traditional probing and ICT increasingly impractical. This application note explains how boundary-scan testing with the Keysight x1149, combined with Smart PCIe Plug-in cards, provides a safer and more cost-effective way to validate PCIe lanes, power rails, and interconnect paths without installing actual components. The Smart Plug-ins offer full boundary-scan access, enabling comprehensive testing of high-speed connectors and SMD-mounted interfaces while reducing fixture complexity and avoiding damage to expensive hardware. With integrated libraries, loopback configurations, and automated optimization tools, the x1149 streamlines test development and accelerates production workflows. This approach helps manufacturers achieve high coverage, maintain consistent test quality, and improve throughput when verifying complex PCIe connectivity on today’s advanced server motherboards.