Add a Variable Speed PWM-Controlled CPU Cooler to an LGA1156/1155 System 1155 Cooler PWM 1156 Cooler PWM 1155 PWM Fan 1155 Heatsink 1156 Heatsink CPU Cooler Fan 95mm CPU Cooler Fan for Socket LGA1156 /1155 Pulse Width Modulation Lubricate Bearing Fan Aluminum