The motherboard could simply not like the fan control unit. Can you provide a link to your motherboard on the manufacturer's website? There might be an option to disable that or perhaps disabling fan control in the bios... not sure...
"Yeah, broken, all the fan run fine even if are broken."
I really have no clue what you mean.
Should I enable CPU Q-fan control? also CPU fan speed option says N/A and has an ignore option also..I'm sure if I ignore it the option won't show anymore but I rather fix the problem rather than ignore it. I tried to lower the CPU fan speed to 1500rpm but still got the same error.
I unplugged the fan control and plugged the CPU fan in directly and still got the error. it must be some sort of setting...the fan is sucking inntowards the heatsink and everything is mounted correctly. the only thing I can think of hardware wise is the CPU fan bein plugged into the incorrect spot but Im pretty positive it's in the right place, mono manualsays CHA_Fan 2 which is where I have it plugged into. it must be some sort of incorrect BIOS setting? I'm not quite sure what though...
Could it be because of too much/insufficient amount of thermal paste? I used TX-2 which came with my sunbeam CPU Heat sink. I read around a lot on how to do it since it was my first time applying TIM but I double checked after I applied it and it was lightly spread evenly around the top part of the CPU/bottom part of the heat sink.
Yes, CPU Fan speed option has two of them: N/A and Ignore. It's currently under N/A but I read somewhere that Ignoring it get's rid of the problem. I can try it but would that be safe? I'm running good temps...CPU fan is running fine. I don't see how it could be harmful but then again I'm fairly new to this CPU fan/temp deal. Brb i'll let you know if ignore option works.
Ignoring it seems to fix the problem. While reading the manual I've noticed something that might help out. When I go to hardware monitor to read my temp/RPM the RPM is under Chassis Fan Speed 2 and in the Manual is shows that the RPM for the CPU fan should be under CPU Fan Speed...which I just set to ignore. the main CPU fan connector on motherboard is for a 4 pin connector. I checked my stock HSF and saw that it has a 4 pin connector. My sunbeam is a 3pin connector and so I assumed the CHA_Fan 2 (3 pin) connector on the motherboard was the correct connector. Is this wrong? or is this just an error that is going to happen. BTW this HSF is out of date for this motherboard...I had to buy a separate set of backplate and retention brackets for the LGA1366 socket mobo.