Computer Freezing

[Dynamic Mastermind]

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?

 

[Ghostman 1]

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..

 

[Wicked Mystic]

CPU socket pins bent? What PSU?

 

[Big B]

What power supply do you have?
What's the newer MB/CPU?
What temps do you have with the newer equipment?