Radiator Fans Not Spinning? 3 Ways To Fix It

Radiator Fans Not Spinning? 3 Ways To Fix It.

Whether or not it’s resulting from connection issues, defective headers, or BIOS conflicts, typically your liquid CPU cooler’s radiator fan might cease spinning.

In such circumstances, your CPU can’t quiet down effectively and can begin overheating.

To repair your radiator followers, examine the {hardware} parts and connections rigorously, then undergo the fan settings on the BIOS.

You might even need to reset or update the BIOS if it’s a new radiator.

Let’s focus on all these options intimately.

Check Fans, Cables, and Connectors


This problem often occurs resulting from {hardware} faults like damaged cables and connectors. 

If you hadn’t transported your PC safely or made pointless modifications to the rig, there’s a likelihood some parts might have gotten broken. 

In case the fan header pins are bent or damaged, chances are you’ll expertise energy points even when the connection appears safe. Other than that, defective cables may be a serious downside. 

So the very first thing you must do is to open your PC case and examine the gadgets.

  • Check if the radiator followers are correctly related to the fan headers on the motherboard or fan controller. You also can reconnect them to examine for unfastened connection.
  • Make certain that any wire or different parts usually are not bodily obstructing the fan blades from transferring.
  • Inspect the cables and connectors whereas reconnecting them and search for breaks or different faults.
  • You also can attempt connecting the fan cables to different fan headers. Or join the cables of the CPU fan or different working case followers to the fan headers you have been using for the radiator followers.
  • If the opposite fan works on the unique header, your radiator fan or its cable is broken. Take it to the service heart or {hardware} technician for restore or substitute.
  • If the unique header doesn’t work, use different obtainable headers or get fan controllers to connect the radiator followers. I additionally advocate taking your motherboard to its official service heart as quickly as attainable to troubleshoot any {hardware} points.
  • Accumulation of mud or particles also can hinder the followers. So, clear the radiator followers off any mud using compressed air.

Check Fans in BIOS


After checking for connection points, enter your motherboard BIOS/UEFI and examine your fan setting. Note and configure the next issues whereas doing so:

  • Check whether or not your PC is detecting the radiator followers. If not, there is likely to be one thing fallacious with the fan itself.
  • You also needs to examine the fan pace. All fan motors have a minimal threshold for his or her beginning voltage. If you specify a decrease pace, the motor doesn’t get sufficient energy and may’t rotate the followers. So, attempt growing the pace and see if it really works. It’s additionally higher to set the fan mode to PWM because it helps decrease pace.
  • You will discover the mandatory choices below Hardware Monitor or an identical tab. You also can reset the BIOS to deliver all of the fan settings to the manufacturing facility default earlier than manually adjusting them.

Make certain to avoid wasting and exit the BIOS, in any other case, your PC received’t apply the modified settings.

Note: If you’re using a fan controller, use its OEM management software for it to examine and management the fan pace.

Fan controllers that don’t have USB headers don’t enable individually controlling the related followers. All the followers will comply with the identical pace relying on the fan header the place you join the controller.

Reset or Update the BIOS


If the radiator followers don’t spin from the primary time you mount the radiator to the pc, it is likely to be due to some improper BIOS settings. 

First, reset the BIOS to the default state by choosing the related choice within the UEFI’s Exit tab. You also can take away and reconnect the CMOS battery or quick the motherboard jumpers to reset the firmware.

If resetting doesn’t work, and there aren’t any issues with the fan connections or settings, chances are you’ll have to update your BIOS. Before that, examine in case you have an outdated model of the BIOS.

Improperly updating the BIOS firmware runs the chance of bricking your motherboard. Make certain to examine the right particulars and directions for the BIOS update historical past in your motherboard’s official assist web page beforehand.

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