cpu fan error


 Recently quite a few ASUS motherboard users have been repeating that every time the computer is turned on it asks for a CPU fan error and they have to press F1 to continue. 


These problematic motherboards include M2N-MX, M2N-VM and 945GC etc. The cause of such a failure is mainly since the motherboard is unable to detect the RPM from their CPU fans.


If you too are suffering from this distress, you can correct it by opening the box and examining the following:


Incorrect Fan Connection

Because the motherboard has a video card fan port, a CPU fan port, and a system fan port, if the CPU fan connectors did not connect to the CPU fan port, the motherboard has no way of catching its fan speed, then you need to reconnect them. 


Now most fans are 4-pin connectors, but some CPU fan ports only support 3-pin connectors, so the connector at the top should stay out of the port.


Fan Speed Is Too Slow

If the fan is working in a harsh environment, excessive dust will inhabit it and lead to the fan moving slowly or improperly. 


This problem mainly occurs when your motherboard is used for a certain period of time. You need to put some transformer oil on the fan after cleaning it.


The Fan Does Not Run

This is probably because the fan motor or sensor is broken, and you will need to buy a new fan.


Inappropriate Bios Settings

If your problem still exists after checking all of the above, you can try two methods below.


  1. Enter the BIOS and check the first driver, if you set it to boot from CD-Rom but do not insert a disc into the CD, a warning message will also appear. At this point, you need to configure the first driver to boot from the hard disk.
  2. Go to the BIOS, find the CPU fan speed, and then change the N / A to Disabled or Ignore.


I hope this article helped to fix your CPU fan error on boot.

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