What is DDR4 RAM and How to Install It in Your PC -

DDR5 can also run at higher clock frequencies than DDR4 But can you use DDR5 modules to upgrade a DDR4 or even a DDR3 motherboard?

It also indicates that your DDR4 may not be compatible with motherboard especially the older ones, while most motherboard can support DDR3 pin

ddr3 in ddr4 slot Is DDR4 RAM compatible in a DDR3 RAM slot? The Question: I'm looking to get a RAM

ddr3 vs ddr4 slot No, you cannot install DDR4 RAM in the DDR3 slot as DDR4 has no backward compatibility While DDR4 offers many advantages compared to DDR3