Which X670E motherboards can undergo full end-to-end ECC checking?

Which X670E motherboards can undergo full end-to-end ECC checking?

Since DDR5 memory supported by DDR5 motherboards includes On-Die ECC, it means that it has built-in error detection and correction capabilities within the chip. However, this technology cannot correct errors outside of the chip or those occurring on the bus between the module and CPU memory controller, meaning it cannot perform full end-to-end ECC. To achieve full end-to-end ECC, it requires DDR5 Memory with Side-band ECC functionality listed in the QVL, along with a motherboard that supports this feature. Memory with Side-band ECC functionality will include an extra DRAM chip on the memory.

Full end-to-end ECC memory system involves the CPU, memory controller, and DRAM modules during memory access. Consequently, these components require additional circuitry to support ECC functionality. For example, ECC RAM contains an additional DRAM chip to store the ECC codes.

All ASUS X670E motherboards support full end-to-end ECC checking, here is an introduction to a motherboard that supports full end-to-end ECC functionality, where the Memory section mentions ECC & Non-ECC, Un-buffered Memory.

Reference website: 

https://www.memtest86.com/ecc.htm 

https://www.kingston.com/en/blog/pc-performance/ddr5-overview