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Why is My PSU Fan Not Spinning? Hints and Solutions

  • Jeffery Williams
  • November 8, 2021
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A PSU fan only spins when the power supply is under heavy load. There are a few things that can cause this: The PSU fan speed controller might be set to low, and/or dust and dirt on or around the connector could result in an electrical short between pins.

The “power supply fan not spinning on startup” is a problem that many people have. The issue can be fixed by checking if the power supply has enough power, or adding more fans to the system.

If your PSU fan isn’t spinning, I understand how irritating it may be, particularly because a PSU fan is required for every computer with a power supply.

True, a faulty fan may cause your computer to overheat and harm the motherboard, which is why you should troubleshoot as soon as you notice issues.

The good news is that there are a few of well-known causes. We’ll go through the most frequent methods to repair a PSU that has stopped spinning in this post.

Why isn’t my power supply fan spinning?

Overheating from dust build-up is the most frequent cause of a PSU stopping spinning.

Another possibility is that an internal circuit has failed and has to be replaced using soldering skills. We’ll now go into the most common causes for PSU fans to fail and cease spinning.

Mode of Semi-Passive Cooling

The first step is to look in the documentation of the power supply to see whether it has a semi-passive cooling option. When the fan is not under as much stress, this feature reduces the fan’s spinning speed, perhaps extending the life of your power supply.

This simply indicates that your PSU fan isn’t spinning since it isn’t required to do so. If you just use your computer for light activities, it’s probable that it has a semi-passive cooling system, and you shouldn’t be concerned. However, if the fan does not spin even when there is a lot of demand, something is amiss. In terms of context, the semi-passive cooling option may force the fan to turn on between 15% and 40% PSU load, depending on the manufacturer.

Dust

If dust has accumulated within your device for a long period, it may obstruct airflow and cause components to overheat. A fan may not be able to draw in enough air if there are no vents on the back or top of your computer. During extended usage, this may lead to overheating and damage.

Dust may be removed from a fan by blowing it out using pressurized air (or an electronic vacuum cleaner). To remove obstinate particles, you may also use canned air and cotton swabs soaked in rubbing alcohol.

Connections That Aren’t Tight

Check for physical damage to the power cord, as well as any loose connections where the PSU fan plugs in.

Fan that isn’t positioned correctly

If your fan makes a grinding sound as it attempts to spin, one of its blades may have gotten bent. If not, they may have just fallen loose from their fastenings, which is more difficult to repair but still possible. Attempt to unscrew all screws on both sides until you reach the assembly level.

Components That Have Been Overheated

This issue typically occurs because something within has been severely damaged by heat and has gone into thermal runaway mode without notice, necessitating expert assistance or the purchase of a new device.

Power Supply Unit Has Been Disconnected

Check to see whether the power source is really connected, which may seem stupid.

Obstruction

If anything is impeding the fan’s path, it won’t be able to spin – look for any cables that have been pulled down too much, obstructing airflow. An HDMI cable, for example, might easily prevent a case fan from spinning when connected into the motherboard. The same rule applies to power wires near the CPU cooler!

Is the power supply fan still not working?

If your PSU fan is still not functioning, your best bet is to replace it. You should be able to clear the dust from your PSU fan, however the debris may have permanently damaged the fan.

Fortunately, finding a PSU fan for your PC is not difficult. I suggest choosing a PSU fan with a high static pressure (Amazon link) since it will provide the greatest cooling performance.

Please keep in mind that replacing your PSU fan will need you to open up your computer. When installing and uninstalling components, ensure sure there is no charge remaining in your computer.

Conclusion

Finally, dust build-up is the most frequent cause of fan failure, which may be readily cleaned using compressed air or vacuum cleaners.

It’s also worth noting that many PSU fans operate in a semi-passive cooling mode, meaning they won’t start spinning until the PSU reaches a specific temperature. If your computer’s fan isn’t spinning, it’s conceivable that it doesn’t need to be cooled yet.

I hope you found this post interesting. Please do not hesitate to contact us or ask me any questions in the comments area below.

 

The “gigabyte psu fan not spinning” is a common problem that usually happens when the power supply unit has failed or is not working properly. The PSU may be broken, the wiring may have been cut, or it could simply be a software issue.

Frequently Asked Questions

Is it normal for PSU fan to not spin?

 

How do I fix my PSU fan?

A: The PSU fan is most likely damaged and needs to be replaced.

What happens if my PSU fan fails?

A: If a PSU fan fails, you will have to replace it with a new one.

Related Tags

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  • psu fan not spinning corsair
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Jeffery Williams

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Table of Contents
  1. Why isn’t my power supply fan spinning?
    1. Is the power supply fan still not working?
    2. Conclusion
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