AFAIK, even fastidiously "liberated" core/libreboot Thinkpads like https://minifree.org/product/libreboot-t440p/ https://minifree.org/product/libreboot-t440p/ s

AFAIK, even fastidiously "liberated" core/libreboot Thinkpads like https://minifree.org/product/libreboot-t440p/ https://minifree.org/product/libreboot-t440p/ still end up using Intel's memory-reference-code for DRAM training etc. ref. https://doc.coreboot.org/northbridge/intel/haswell/mrc.bin.html https://doc.coreboot.org/northbridge/intel/haswell/mrc.bin.h... ... plus Intel's microcode.