DDR5 RAM module compatability - HP Support Community

The memory sub-system is interesting While the board supports both DDR5 and DDR4, there's only one of each slots, so you're limited to single-

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ddr5 in ddr4 slot DDR5 has about the same latency as DDR4 and DDR3 DDR5 octuples the maximum DIMM capacity from 64 GB to 512 GB DDR5 also

ddr5 slot compatible with ddr4 The placement of the DDR4 notch is different to the DDR5 version DDR5 is not backwards compatible with DDR4 motherboards and RAM modules