Unmatched cooling performance with a cooling capacity of 300 watts the accelero xtreme iv offers an unmatched cooling performance the three 92 mm pwm fans and the pre applied mx 4 thermal compound ensure efficient cooling even under overclocking backside cooler for highest efficiency arctic has developed and patented a back side cooler for unparalleled vrm and ram cooling performance it offers efficient cooling for ram and voltage regulators and thus does not just allow higher clock rates but ma