k so i did the testing and my CPU does not go above 60C thx to the domino and my 5770 never went above about 80C, also the PSU test went 1h no problem so my computer is very stable. but this freezing doesn't happen when i'm "gunning it" in CoD or my other games often, it usually happens when its the computer is idling and i'm gone for an hour or 2, so i tried underclocking and i used to overclock it but not anymore. so should i replace/return it or is there a way to fix it? Or is there another issue in my computer? do you guys need specs or..? PS. i'm surprised you all answered so fast thx for helping!!