This fan heatsink works with the following processors intel core i7 5820k i7 5930k and i7 5960x processor lga2011 v3 socket intel core i7 4820k i7 4930k and i7 4960x processor lga2011 socket intel core i7 3820 i7 3930k and i7 3960x processor lga2011 socket this fan heatsink does not adequately cool the intel core i7 3970x processor which has a thermal design power tdp of 150w