CPU Fan error on cold start

dominic2005

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Aug 4, 2016
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Hello.

As per another post, I have just built the following system:

CPU: Intel i7-7700k (Guaranteed OC 4.2 - 4.7)
MOBO: ASUS Maximus IX Formula
RAM: Corsair Vengeance LED 32GB (2x16GB) DDR4 PC4-24000C15 3000MHz
GPU: ASUS STRIX-GTX1080 A8G Gaming
CASE: In-Win 509
PSU: In-Win C900
SSD: Samsung 960 EVO Polaris 500GB M.2 2280 PCI-e 3.0 x4 NVMe
COOLING: Cooler Master V8 Version 2.0 Triple Tower

My only niggle with this, is when I power on from being completely off, I get a "CPU fan RPM error, press F1 to enter setup"

The CPU fan is working fine, and simply entering the bios, then exiting and restarting allows the system to boot normally.


Any clues ?
 
Solution
Disable CPU fan fail warning in BIOS and this warning will go away.
With cold CPU, your cooler is starting fan with speed so low, that motherboard thinks it has failed. That's why it calls this warning.