Question: can ddr3 and ddr4 work together?
Answer: DDR3 and DDR4 RAM don't work together The first noticeable difference between the two RAM-types is the physical layout of the pins on each module. DDR3 RAM uses a 240-pin connector, while DDR4 RAM uses a 288-pin connector. ... A motherboard and CPU that work with DDR3 RAM don't work with DDR4 RAM and vice versa.