Originally Posted by alexrush38
Everything is correct in terms of paste application and seating. Does anyone have an explanation as to why the new cooler runs at such a low rpm?
Thank you very much.
I will try to compile an answer to what might be the cause of the low rpm (after some research on the net).
Αcording to Intel
You have no FAN control due to the nature of the fan 4 Pin PWM being used on a 3 Pin connector.
Thus the fan FAN runs on manufacturer predetermined speed.
Processor(4-pin) fan header pinout:
Chassis/CPU fan header pinouts:
A further search
on the net indicates as stated below:4-pin Molex connector KK Family
This is a special variant of the Molex KK connector with four pins but with the locking/polarisation features of a 3-pin connector. The additional pin is used for a pulse-width modulation signal to provide variable speed control. These can be plugged into 3-pin headers, but will lose their fan speed control
My best guess as to why your AVC fan spins between 600 and 700 RPM is due to fluctuations in the provided voltage (≃+12V) being caused by the MB trying to adjust the voltage for a 3 pin FAN.