What will happen if I mix DDR4 RAM and DDR5 RAM in my PC?

Alder Lake Motherboard With a DDR4 and DDR5 Slot Appears Onda, a Chinese motherboard manufacturer, has released the H610M+ motherboard (via

If you bought DDR5 RAM, you also want a DDR5 RAM motherboard, of course These motherboards are made after 2021, and it's confirmed they're compatible with

ddr5 slot compatible with ddr4 Physical Differences: DDR5 and DDR4 RAM sticks have different notches or key positions This means a DDR5 RAM stick won't fit into a DDR4 slot

ddr5 slot Just to clarify DDR5 is not backwards compatible with DDR4, it's a completely different DIMM slot There will be DDR4 and DDR5 Alder Lake