I tried to install a ddr3 into a ddr4 slot and tried to boot it

I tried to install a ddr3 into a ddr4 slot and tried to boot it ddr3 in ddr4 slot The DDR3 standard permits DRAM chip capacities of up to 8 gigabits , and up to four ranks of 64 bits each for a total maximum of 16 gigabytes per ddr3 in ddr4 slot A motherboard with DDR4 slots cannot use DDR3, and you can't put DDR4 into a DDR3 slot But let's dig into the differences a bit more 4

ddr3 in ddr4 slot -73% Ant Value B450MAD4-N Motherboard Socket 11553rd and 2nd Generation Core Series CPUDDR3 1333MHz

ddr3 slot 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  Key Difference between DDR3 and DDR4 · DDR3 RAM is backward compatible with the older RAM generations, while DDR4 RAM is not backward compatible