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

DDR5 RAM FAQ ddr4 and ddr5 same slot You should have both memory sticks in slots of the same colour One will be in channel A and the other in channel B, so they can run in dual-channel As I ddr4 slot vs ddr5 However, modern CPUs can go into the so-called flex mode, a feature where a four-slot motherboard with three RAM sticks will run two of the

ddr4 vs ddr5 slot DDR, DDR2, DDR3, DDR4 and DDR5 all have different pin counts andor Ranks that share the same slot, only one rank may be accessed at any given