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Recently launched DDR4 devices have what memory device vendors may refer to as a โ€œboundary scanโ€ test mode. Even though thereโ€™s not really a boundary-scan function involved on the DDR4 side, this mode actually has been, as claimed by JEDEC, โ€œdesigned to work seamlessly with any boundary-scan devices.โ€ Hereโ€™s a brief introduction to what it does and how to test it with a boundary-scan (JTAG) tool.
Baseboard Management Controllers (BMCs) form the brains of any high-end Intel-based server platform: they perform system management functions ranging from fan speed control to remote user authentication. A new wave of these service processors is coming to market to support new capabilities needed on the next generation of Intel silicon. What are these unique features, and how will they be debugged?
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