I tried two fans with your C7P67 and the fans keep changing their fan speed from low to high by turns. What should I do?
fans:
Cooler master Hyper 212 Plus RR-B10-212P-GP
Scythe SCKBT-1000
The low limit of the fan spec on C7P67 is 700rpm and when fan speed is lower than 700rpm, system will regard it as fan failure and force all fans to run at full speed. Both fans you have fan speed down to 600/300rpm and could trigger the motherboard to drive fans run at full speed. We suggest customer to use fans with minimum fan speed higher than 800rpm.