DDR5 motherboards should come with only 2 dimm slots as standard

When it comes to slot dimensions, there is a visible change in DDR5 with Tags: Memory Module DDR4 DDR5 High Speed Connectors DDR5 SODIMM Related

The answer is no, DDR5 has a different pin layout than DDR4 motherboard Both modules have key notches to lock them in place in the motherboard's DIMM slot

ddr5 in ddr4 slot DDR5 memory operating up to 4800 MHz; 8 channels per CPU; 32 DIMMs (16 per Rear: Up to 10x PCIe slots, plus a slot dedicated to the OCP adapter Slot

ddr5 slot I have 4 DDR5 slots and 2 sticks of ddr ram, the slots are marked A A and B B in that order, the mobo shows the first slot in A and B are