ASRock CPU Fan header ramps up from boot?

[iamholam]

Posted this on motherboard forum but it's more of a cooling question. I have an ASRock Z170m Pro4s motherboard and have noticed that the CPU cooler ramps up in speed from startup. When it first boots the fan spins quite slowly before speeding up.

Not much of an issue except my stock Intel cooler seems to stick at the "startup" phase and doesn't spin until I give it a prod.

Is this standard functionality on motherboards for the CPU header?

 

[iamholam]

Think I will need to read the manual a bit better but it doesn't seem to be speed profile as a prod on the fan will kick it into life. Even though the Intel cooler is a four pin connector no matter which profile I set it to the fans remain the same speed.