Key difference between DDR4 and DDR3 RAM

Gniazdo pamięci DIMM DDR4 Model 3D ddr4 slot No, you can't use DDR3 on a board that has DDR4 memory slots only They won't fit and won't work ddr4 in ddr3 slot H610M H DDR4 · Supports Intel® Core™ 14th 13th 12th processors · Dual Channel Non-ECC Unbuffered DDR4, 2 DIMMs · 6+1+1 Hybrid Digital VRM Design

ddr4 slot vs ddr5 I install the ddr4 ram it had before and it powers on, fans start, ok lights up, monitor turns on but has no visual and turns down