Lately my computer has been freezing whenever i play games so i replaced the cpu, motherboard and gpu and tried old to new drivers did mem test and hhd test but still freezes. But when i swap out my motherboard and cpu with my old I7 2600k and z68x-ud3h-b3 computer doesn't freeze anymore and runs fine what will cause this problem?
This could be a number of things, You do not mention on how much ram you have.... Most freezing will come from a bad video card..
What power supply do you have? What's the newer MB/CPU? What temps do you have with the newer equipment?