I've just installed a new stick of 4gb crucial ram I know have 3 total but I don't think it's worked and games seem to be running slow my motherboard is a Z170 Gaming K3
If your computer is still working, the RAM is fine. Because you are running 3 sticks instead of 2 or 4, it MAY be running the RAM in single channel mode, which is what may be making a noticeable difference.
If your computer is still working, the RAM is fine. Because you are running 3 sticks instead of 2 or 4, it MAY be running the RAM in single channel mode, which is what may be making a noticeable difference.