Original Delta AFB0712HHB 7CM 7015 0.45A double ball bearing fan suitable for AMD heat sinks 1

This fan is a PWM intelligent temperature-controlled fan. With the support of PWM function on themotherboard, this fan is very quiet. Generally, the rotational speed is controlled at 1500 rpm, so thereis almost no sound. Buyers should confirm whether their motherboard supports the PWM functionGenerally, ifthe socket at the CPu fan position on the motherboard is 4-pin, it supports PWM. Somelower-end motherboards might be fake 4-pin ones, and those motherboards do not support PWM. The PWM function of some motherboards needs to be enabled in the motherboard's Bl0s.

Otherwisethe fan will run at full speed. When the fan is running at full speed, it reaches approximately 5000 rpmand the noise is quite loud. Users who want to have a quiet fan should definitely use it under PWMcontrol.