use ddr3 in ddr4 slot: Biostar Hi-Fi H170-Z3 Motherboard Review – DDR3L & DDR4 on H170 ... . The difference between DDR3 and DDR4 | PC Gamer. The difference between DDR3 and DDR4 | PC Gamer.
We've reviewed our recommendations and these are still the best DDR4 RAM sticks you can buy. ... Can I use DDR4 RAM in a DDR5
slot?
You cannot put DDR3 in a DDR4
RAM slot, so if you are buying a newer processor, such as an eighth or ninth generation Intel, or an AMD Ryzen processor, you will need to purchase DDR4 RAM to go with it.
The difference between DDR3 and DDR4 RAM, and why DDR4 is usually the right choice.