Can we put DDR4 ram in DDR3 Slot or DDR3 1600Mhz

HighPoint Rocket 1608A 8-Slot Gen 5 ddr4 slot If you want to build a proper machine, you need a solid base This H610M H V3 DDR4 Gigabyte motherboard is ready for 14th Gen Intel® Core™ Proce ddr4 vs ddr5 slot DDR4 RAM Slot & 1 SATA SSHD Slot 3 Years Warranty+2 Years Extended Warranty Up to 16GB DDR4 SO-DIMM memory support;

ddr4 and ddr5 same slot No, you can't use DDR3 on a board that has DDR4 memory slots only They won't fit and won't work