False? CPU Fan error

[Iqnious]

Since a few days ago when i start up my pc and at the POST i hear 1 long beep followed by 4 short ones and it brings me to a screen that displays my system specs, usb drives and at the bottom a message saying "CPU Fan error, press f1 to enter setup"
If i do this i enter the bios, and after closing it my pc starts normally, and works normally. I am a bit concerned tho if this is just a false error or it could be legit.

CPU: Intel i5-4460
Motherboard: Asus h81m-r
Cooler: ARCTIC Freezer 7 Pro

 

[C12Friedman]

I think the fan is slow to get to speed, the PC has a set amount of milliseconds for the fan to be reporting full speed. If it takes too long you get the CPU fan alarm. You could replace the fan or possibly RMA the unit. You could also keep an eye on the fan and be ready to replace it if needed