the ram is supported by the motherbaord asus m5a99x evo new bulldozer FX 4x 3.6ghtz havent overclocked anything all temp is ok windows 7 and a corsair 650xt watt Power supply also a EVGA gtx 570 graphics card i put all this together it boots up fine for a couple of hours but then the whole pc just freezes any suggestion would be nice Regards
What are you doing when it freezes? Is it during gaming, or just randomly on windows? Does it freeze and then allow you to continue after some time or do you have to hard reset? I would check all your hardware drivers and update them if needed.