can ddr3 ram fit in ddr4 slot - DDR5 4 dimms on am5 -- what's working, what's not? - L1 Articles ... 888 bitcoin slots free trust dice

Can I put RAM in any slot? ... A common misconception about RAM is that you can put any RAM into any slot. You can do that, but it won’t work, or it will work ineffectively.

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.

So, it becomes impossible to fit DDR3 in the DDR4 slot and vice versa.