Reminder: DDR4 RAM Won't Fit Into DDR5 Slots and Vice Versa

7 RAM Myths and Misconceptions That Really Aren't True ddr4 and ddr5 same slot To recap here, DDR5 DIMMs are physically the same as DDR4, with the same number of pins ddr4 vs ddr5 slot In past DDR gens , servers handled UDIMMs and RDIMMs interchangeably In DDR5, they're not compatible; RDIMMs and UDIMMs are no

ddr4 sodimm slot DDR4 and DDR5 RAM sticks are installed in pretty much the same way, but they're not cross compatible Even though some CPUs might work with both