PC Won't Turn On But Fans Are Spinning | Solutions

If there is one thing that can scare a user, it is noticing that their PC does not turn on but the fans do. This problem can be caused by a variety of reasons, fortunately, some of these causes can be solved at home.

In this article we will talk a little about the possible causes of this situation as well as a series of steps you can try to solve this type of problem.

Causes of the PC not turning on but the fans do

There are three main reasons why your computer won't boot but the fans are spinning:

• Poor energy supply
• Overheating
• Failed components

When your computer's power supply fails, it won't start or turn on, but the fans spin independently.

Similarly, when your PC won't turn on but the fans are constantly spinning, it could be a sign of high temperatures or overheating in your computer. If this temperature issue is not fixed, this can cause your computer to crash or refuse to boot until it cools down.

If the fans are spinning faster than normal, you should check that the airflow around them is not obstructed.

When your computer's components are faulty or damaged, they can prevent your machine from booting. Such components include RAM chips, motherboard, and even the BIOS.

PC does not turn on but the fans do. Solutions

If you have experienced that your PC does not turn on but the fans continue to spin, you can try the following steps to try to solve this problem. However, you should bear in mind that the problem may be more serious and you may need to contact a technician.

Method 1. Disconnect external hardware

The first thing you can do to solve the problem that the PC does not turn on but the fans do, is disconnect the hardware catalogue. This involves unplugging or disconnecting any external hardware such as printers, drives USB, scanners, among others so that you leave only the basic components before trying again.

Of course, we suggest unplugging the power cord and removing mostly all external peripherals and then moving on to the internal hardware.

Method 2. Reset RAM chips

One of the reasons why PC won't turn on but fans are spinning could be bad RAM. If this is the cause of this error, what you need to do is Remove the RAM from its slot, then clean it and finally you must return it to the same slot or if you prefer, you can try a different slot.

The best way to clean RAM is with a cloth and do it gently. Do not apply any cleaning liquid, the RAM should be cleaned dry. You can also try changing the positions of the RAM cards to different sockets in case you want to try another resolution method.

While cleaning the RAM may be enough, we recommend a new RAM. Using a completely new DDR4 memory module avoids the situation where the PC does not turn on but the fans spin. However, try cleaning the existing RAM first.

There are professional products in this regard that have an operating voltage of 1,2 V. Their design will allow you to have low energy consumption, and you will also use a product with little heat generated.

Overall, your computer will have a constant ambient temperature and thus avoid overheating. A professional DDR4 memory module offers you stability, long-term efficiency and very low consumption.

Method 3. Check the motherboard

If you see a yellow or amber light on, it could indicate a faulty motherboard.

Sometimes the motherboard may have faulty capacitors, which can cause the computer to not Boot but the fans are spinning.

If this is the cause of this problem, you will need to install a new base.

 

Method 4. Change the power outlet

If you open your computer, remove all attached devices and expansion cards, then turn it back on and still the PC won't turn on but the fans are spinning, then you're probably having a power supply problem.

As mentioned above, one of the reasons why your computer may refuse to boot but the fans are spinning is a poor power supply. You can try a different wall outlet and plug it in, then try restarting your computer.

In many cases, switching to a different outlet may solve a power problem.

Method 5. Check with your computer manufacturer

If your PC does not turn on but the fans do spin, you can also note the sequence of beeping or flashing lights that your computer displays while trying to boot. The next step you should take is to check with your computer manufacturer to see what the sequence means.

Many times the sequence of lights can have a meaning as to the reasons why the PC does not turn on properly, however, only the manufacturer can tell you what the reasons and possible solutions could be.

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Method 6. Check the peripherals

If your PC won't turn on but the fans are spinning and you hear a beeping sound as if it's starting up, then one of your peripherals could be causing the problem. In this case, you can insert one at a time and then try to confirm which one is problematic.

What you should do is disconnect all peripherals and connect them one at a time until you find the cause of the problem.

Method 7. Consult a technician

If all else fails and your PC still won't turn on but the fans do, you should seek out a qualified computer repair technician to help you figure out what the problem is and how to fix it. This could be (as it often is) a power supply failure.

You probably need to replace it. Often, it has enough power to run the fan (low power) and it is difficult to run anything else. In this case, it will be the job of the specialized technician to give a specific diagnosis and point us towards the correct solution to the problem.

Final words

Si tu PC does not turn on but the fans do spin, this can be caused by a variety of reasons. It is important that you try these methods because they can help you solve the problem, however, if the problem persists, the best thing you can do is contact a specialized technician who can give you a correct diagnosis and the exact solution you need.