So I'd like to upgrade my PC from an i5-6400 to an i7-8700k or i7-9700k, but I'm just trying to check to make sure everything is compatible. It seems both the 8700k and 9700k require ddr4 ram and aren't compatible with ddr3 ram. If this is true, could someone with more experience than me confirm this? If this is the case, I would need to upgrade my ddr3 ram obviously, so I went to check if my motherboard is even compatible with ddr4 ram, but I'm not sure i fit is, and this is the main problem. I have a default motherboard from some PC build from HP, and the model number is IPM17-DD REV:1.04. There are some listings on ebay for it, but I just can't seem to find what ram it is compatible with. Any help is appreciated.