Cooler does not work on the laptop

Why? The reason is that both cheap and expensive coolers are usually disassembled to a certain extent, particularly in terms of removing the impeller. However, it is highly likely that you will come across a situation where the actual electronic components themselves are simply not accessible due to being soldered or glued down for stability. Therefore, it is often the case that coolers are deemed unrepairable. However, the focus of this article is not on that particular topic.

So where can you find the widest range of fans for your computer or laptop? Look no further than AliExpress, which boasts the largest selection of coolers, including those for any video card and even single radiators. With such an extensive collection, you will be able to provide cooling for ANY device within your PC. Why pay extra to the "sellers" when you can get the same product right now by simply waiting a little longer?

Diagnosing problems

Determining the root causes of noise is not a complicated task, especially when it comes to the issue of overheating.

The buzzing sound emanating from the computer case is not the only symptom to consider – there are also instances of system hangs and slowdowns, and the device may even restart unexpectedly, particularly when running resource-intensive applications or computer games.

This type of behavior can often be attributed to factors such as the accumulation of dust and dirt within the cooling system, dried-up thermal paste, or poor air circulation. To confirm these factors as the source of the issue, it is necessary to inspect the interior of the computer case.

Determining the problem becomes considerably more difficult when the cause is related to software issues.

If any changes were made prior to the emergence of the noise problem, it is advisable to revert all settings back to their standard or optimal values.

Forcing the fan on with the SpeedFan program

There is another method to enhance the performance of the cooler, which involves utilizing specialized software such as the utility SpeedFan, available free of charge. To overclock the fan with this application, follow these steps:

1. Download and install SpeedFan onto your laptop. The installation file occupies approximately 3 MB, thus a slow internet connection is suitable.
2. Open the program through the desktop shortcut and navigate to the Settings section to switch the interface language to Russian.
3. Access the "Indicators" menu and adjust the fan’s power percentage. In this section, you can also monitor details about the temperature of your hard disk drive, motherboard, and all processor cores.
4. In the "Configuration" section of the "Temperature" window, adjust the temperature settings for the HDD, CPU, and motherboard, which will be supported by the cooler. Use the "Alarm" function to set a temperature threshold that, when exceeded, will prompt the program to notify the user about system overheating. This feature facilitates faster response in critical situations.

There are alternative programs available to manually activate the laptop fan. AMD OverDrive utility, for example, enables adjustments to the cooler’s operation specifically for PCs with AMD processors. Intel processor-based PCs can use the Riva Tunes application for similar functionality.

To test the functionality of a working but unused cooler as a fan, you can utilize the option to connect it to a power supply that has a 12V output, such as in a car. This can be achieved by connecting the cooler to a USB cable. The following items are required for this process:

• A USB cable from any unnecessary device (ensure that the cable is in good condition)
• A working cooler

The steps are relatively simple. Cut off the connector to the other device from the cable, leaving only the USB connector itself. Identify the wires with the appropriate color markings (black and red) and connect them to the corresponding wires of the cooler. Finally, insulate and connect:

red to red, black to black

Here is the arrangement of the least expensive USB fans. It may not impress you, but it is a great opportunity to explore or give it a try. Any "mom" type USB plug can be used to test it. This simple technique will even allow you to examine four-pin coolers: start by connecting the cooler’s "black" contacts to the cable’s contacts, and then connect the red wire of the USB cable one by one to all the contacts on the cooler connector. Doesn’t rotate? Then get rid of it.

Caution: Do not leave the fan spinning for an extended period of time while powered in this manner! This method is solely for performance testing purposes.

When replacement is required

If the power supply and rotor rotation are fine, but the fan is still not spinning, then the likely cause of failure is the armature winding. It is advisable to replace the cooler with a new one.

The only issue that may arise is the challenge in locating and purchasing a similar device, especially one with the same dimensions. It is not recommended to buy an old part, as they often do not function properly. It is best to seek advice from a professional. Nowadays, it is easy to find this component for laptops from any brand (Samsung, HP Pavilion, Asus, Acer, Lenovo, or DNS).

Other methods of preventing fan noise

Aside from utilizing specialized software to clean and regulate the fan speed, there are a variety of other methods available to assist laptop owners in reducing unwanted noise in specific scenarios.

If the built-in cooling system in your laptop isn’t sufficient, laptop stands with built-in coolers can help. These stands come with one or more additional fans that blow air onto the laptop case, effectively lowering its temperature. The performance of these fans can vary depending on the manufacturer and model of the laptop. In the budget category, DeepCool has proven to be a reliable manufacturer, while CoolerMaster excels in the higher-end segment.

Update the BIOS of the laptop

If your laptop’s fan is too loud, even when it’s turned on, it may be due to incorrect settings in the BIOS.

Essentially, the developers themselves have made mistakes that prevent the system from properly reading temperature sensors and controlling fan speed.

In certain BIOS versions, users aren’t even given the option to manually configure settings. Therefore, it’s advised to visit the manufacturer’s official website to find the latest BIOS version for your specific laptop model and follow the provided installation instructions.

Don’t forget to remove the disk from the drive

Although it may seem like a minor detail, the presence of a running CD/DVD drive can have a significant effect on the overall noise levels. The vibrations generated by the spinning drive are easily transmitted throughout the device, leading to unwanted noise.

To minimize this impact, it is advisable to refrain from keeping disks in the drive when not in use. Instead, consider utilizing more advanced and contemporary storage options such as flash drives or external HDD/SSD drives. These devices not only eliminate noise emissions but also offer other advantages such as compactness and increased durability.

Let’s take a look at how to clean the laptop cooler using the ASUS K52D as an example.

When it comes to cleaning the cooler, we can take notebook ASUS K52D as an example.

To begin, Step 1 would be to turn off the notebook, disconnect all wires from it, close it, and then turn it over.

Next, for Step 2, we would slide the battery latches (as indicated by the arrows) and remove the battery from the notebook.

Moving the laptop battery latches out of their original position

Take out the battery.

Step 3: Get rid of any screws that are not securely holding the cover of the laptop.

Remove all of the screws securing the cover of the laptop.

Step 4: If needed, use a thin screwdriver to gently pry the cover out of the groove.

Extracting the cover from the grooves

Step 5: Take off the cover. Right below it, you’ll come across the cooling system block (positioned in the upper right corner of the image) and the CPU linked to it via a copper heat pipe (distinguished by an orange circle).

Take off the lid

Stage 6: Delicately cleanse the ventilating system fan impeller with the help of a brush or a cotton swab that is positioned on a pencil.

Gently utilize a brush or cotton swab affixed to a pencil to delicately cleanse the impeller of the cooling system fan.

In step 7, disassemble the fan cover plate by unscrewing the four screws. To avoid the danger of the screws getting lost inside the laptop case, it is advised to employ tweezers to hold them.

Remove the four screws that secure the fan protective cover.

Follow step 8: Raise the cover on the flexible connector and meticulously cleanse the heat sink fins using a slender screwdriver.

Lift up the flexible link cover and gently remove any dirt or debris from the heat sink fins using a slender screwdriver.

Step 9: Securely attach the fan cover and reassemble the notebook by following the previous steps in reverse.

Cooler does not work on the laptop – what to do?

If you lack confidence in your skills, or if the device is still under warranty, it is recommended to reach out to the appropriate service center. The solution to the problem would typically involve disassembling the laptop. However, it should be noted that certain laptop models come with non-disassembled coolers, which makes it impossible to clean or diagnose them.

To begin troubleshooting, power off the device and disconnect the charger. Then, carefully remove the back cover. On some devices, this can be easily done as the cover is secured by plastic latches.

On some laptops, you will need to unscrew all of the screws and disconnect the battery if it is hidden behind a cover. In other cases, the battery must be removed immediately after step 1. Carefully take out the optical disk drive and hard disk. Disconnect all cables and wires leading to the cooler. Once all of this is done, you can remove the fan itself.

If you notice visible dust on the cooler, then it is likely that the laptop’s cooler is not functioning properly due to accumulated debris. In cases of heavy contamination, you will also need to clean the radiator, as simply cleaning the blades will not solve the problem. In these instances, it is recommended to have new thermal paste and thermal pads on hand.

Troubleshooting possible problems in RAM operation

After performing a scheduled dust cleaning on your laptop, you may encounter a situation where none of the lights turn on and the display remains non-functional. This is generally caused by an incorrect installation of the RAM strip. It’s possible that there may also be issues with other components, including RAM and other connectors. In any case, you will need to disassemble the device and verify that everything is properly connected. Simply disassemble the laptop and ensure that all the internal components are securely connected.

RAM malfunctions can happen as a result of liquid spillage on the keyboard or excessive humidity. To resolve issues with RAM strips, please follow these steps:

1. Disconnect the charging cable and remove the battery.

The cover of the compartment housing the RAM cards is taken off. In cases where the laptop does not have a separate compartment, it is necessary to completely disassemble the device. Gently release the locks holding the boards in place. The RAM board is then removed, and if there are multiple boards, all of them need to be taken out. The parts should be carefully blown dry and cleaned with compressed air, making sure to also clean the contacts on the motherboard. It is worth noting that unlike a personal computer, RAM in laptops is installed at a 45-degree angle.

If any oxidation is visible on the contacts, they should be thoroughly cleaned. The strips are then reinstalled into the board and secured with the clips until a clicking sound is heard, indicating they are in place.

Once the boards are detached and then reassembled, the bolts are fastened securely. In the event that the process of separating and reinstalling the boards does not produce the desired outcome, there could potentially be issues with other components of the computer. Typically, instances of cable breakage, short circuits, or backlight malfunctioning occur most frequently. In any of these scenarios, it is imperative to seek assistance from a professional specialized in laptop repair at a reputable service center.

Self-cleaning of the laptop

Let’s discuss the process of cleaning the laptop cooler using the ASUS K52D as an example.

Cleaning the cooler of the ASUS K52D notebook is a simple process that can help improve the performance of the device. Here are the steps to follow:

Step 1: Start by turning off the notebook and disconnecting all wires. Close the notebook and turn it over.

Step 2: Look for the battery latches indicated by arrows and slide them to remove the battery.

Removing the battery

Step 3: Check for any loose screws holding the laptop lid and remove them.

Take out all the screws that are not properly fastened and secure the lid of the laptop.

Step 4: If needed, use a thin screwdriver to remove the cover from the groove by gently prying it out.

Taking out the cover from the slots

Step 5: Extract the cover. Beneath it lies the cooling system block (located in the upper right corner of the picture) and the CPU linked to it via a copper heat pipe (highlighted with an orange circle).

Take off the lid

In step 6: Delicately remove any dirt or debris from the cooling system fan impeller by using a brush or a cotton swab attached to a pencil.

Safely and gently brush or use a cotton swab wrapped around a pencil to clean the fan impeller within the cooling system.

Step 7: Carefully unscrew and remove the four screws securing the fan cover plate. To avoid losing the screws inside the laptop case, you can use tweezers to hold them in place.

Remove the 4 screws that secure the fan protective cover

Step 8. Raise the cover above the flexible jumper and meticulously scrape the heat sink ribs using a slim screwdriver.

Remove the cover from the flexible link and meticulously remove any dirt from the heat sink fins using a small screwdriver.

Stage 9: Shut the fan cover and put the notebook back together following the opposite steps.

Clean and lubricate.

What could be causing the fan blades to not spin? The issue could be either dust or wires that are drooping. If it is dust, the problem can be resolved by cleaning, blowing, and then lubricating the fan. However, if the issue is sagging wires, it is usually accompanied by a distinct sound. In either case, it is important to inspect the fan directly. Sometimes debris can also get stuck inside the mechanism, causing it to jam. You can easily diagnose this by trying to rotate the blades with your finger. If the blades move without any resistance, then you can skip to the next paragraph. Otherwise, you will need to clean the mechanism using a brush or compressed air. Also, make sure to lubricate it as necessary.

To access the mechanism, start by peeling off the sticker covering the power wires. Then, remove the rubber plug located at the center that is protecting the mechanism.

Take immediate notice of the points where the wires are connected to the circuit board. In the case of a 4-wire fan, it is advisable to promptly clean this area using an unused toothbrush or toothpick – frequently, the connections are simply snug:

A tool known as a "burr hole" is used in this process.

Take a screwdriver, toothpick, or similar object and apply a small amount of oil (whether it’s technical oil or vegetable oil from the kitchen, as long as it dries quickly) to the mechanism in the center. Gently rotate the blades using your finger. Repeat this process several times.

I’ve been using an oil can specifically for this task for quite some time now.

To ensure no dust accumulates here, it’s advisable to replace the cap and sticker back in their original position.

Functionality check

There are two methods to determine if the fan is malfunctioning. The initial approach involves using specialized software designed for novices who lack experience with specialized equipment. The alternative method is more technical in nature and necessitates expertise with a tester device.

When it comes to disassembling a laptop and taking out its components, it might appear to be a complex and time-consuming task at first glance. However, in reality, it is actually quite simple. Although there may be exceptions for certain laptop models, there is no need to worry even in those cases. If needed, you can easily locate detailed instructions for your specific laptop model online.

To begin, unscrew the bolts and remove the latches in order to carefully detach the back cover of the laptop. Then, unscrew the bolts that hold the cooler in place and set them aside separately. It’s important to disconnect the cooler with caution, ensuring that it is not pulled or torn. Next, turn on the notebook and verify if the fan is receiving the necessary voltage from the wires that supply it.

If there are no issues with the voltage supply and the fan still fails to turn on, then the problem lies within the fan itself, and you can proceed with the necessary steps to revive it.

Clean the cooler yourself

1. Ensure the laptop is completely powered down and disconnect it from the power source.
2. Take out the battery located on the underside of the laptop. You can do this by releasing the special clips that hold it in place.
3. Flip the device over (making sure to close it first) and unscrew all the bolts securing the bottom cover. It’s a good idea to keep the bolts in a bottle cap or another container to prevent them from getting lost.
4. Remove the cover. Underneath, you’ll find the hard disk and optical disk drive. Disconnect and set them aside.
5. To start, you need to detach the wiring harnesses that obstruct access to the processor and video card, ensuring that they are mounted with fans. If you need to clean or replace these components, simply unscrew the fan and disconnect the wire.
6. Once all the necessary tasks have been completed, it’s time to reassemble the laptop by following the same steps in reverse order.

Fans

The main faults of fans of external and internal units of split-systems include:

• Blade breakage (which often occurs on external blocks with freezing and possible ingress of large debris).
• Conductor breakage of motor windings (due to intercurrent short circuit or breakage on the device body).
• Shaft deformation and jamming.
• In three-phase systems – incorrect phase rotation or connection of fewer phases.
• In fans with AC motors – failure of the capacitor on the windings.

Expert’s opinion Konstantin Starostin Konstantin Adreevich Specialist in installation and maintenance of air conditioners

Usually, centrifugal designs are employed in the interior, with many of them incorporating the impeller and motor rotor. In this situation, the only available repair option would be to replace the component.

To diagnose any other issues, you should:

1. Disengage the system’s power.
2. Disconnect the conductors connected to the electronic block.
3. Measure the resistances of the windings (the manufacturer provides the specified operational values in the technical documentation).
4. Inspect the winding capacitor.
5. If no problems are detected, reconnect the conductors, activate the system, and measure the voltages and currents (compliance with electrical safety regulations is required, along with appropriate authorization).

Based on the measurement results, it can be inferred whether the fan is functioning properly or if it needs to be replaced. It is advisable not to attempt to restore the equipment in DIY conditions.

Replacing the entire unit will also solve other issues such as a jammed shaft or worn bearings.

Sensation of air

Even if the sound of the fan is inaudible, the user should still experience the sensation of air emanating from the vents. Initially, the airflow may be minimal upon powering on the computer, but it will gradually increase as the system reaches its normal operating temperature.

Subsequently, the laptop’s fan will commence directing air out through the primary exhaust port, typically located on one side.

To assess the flow of air, place your hand about half an inch from the vent and perceive the passage of air by feeling the palm of your hand. If the laptop is operating quietly without any airflow being felt, it’s likely that the cooler is malfunctioning.

If you can audibly detect the fan operating, but the airflow from the vents is feeble, the cooler may be obstructed. In such a scenario, it is advisable to clean the vents using compressed air.

Error Watching

If your computer is frequently restarting without warning, experiencing slowdowns during regular usage, or displaying the infamous Blue Screen of Death (BSoD), it is possible that there is an issue with the fan.

The fan is integrated with the heatsink as part of the cooling system. Therefore, even if the fan is functioning and producing airflow, there could be issues with other components of the system. If the cooling system fails or the thermal paste that connects the processor and cooling unit becomes worn out, the system can overheat.

Even if the fan is expelling air from the vents, it could still be experiencing a hardware issue, such as a problem with the motor, that prevents it from adequately cooling the computer.

While some laptops may display temperature readings upon startup, it is advisable to utilize a hardware monitor program to assess the CPU temperature if this information is not readily available.

If the fan is not working properly, the laptop may reach a constant temperature of over 70 degrees Celsius even when it is idle.

Fixing overheating

If the user believes that the cooler is functioning properly but not effectively fulfilling its duty, it requires assistance.

A solution to provide assistance is by eliminating unnecessary processes. Mac users can isolate and terminate unwanted processes using Activity Monitor, while Windows users have the option to utilize Task Manager.

There are various choices for Linux users when it comes to process management.

In case of an overheating issue, it might be advisable to limit the number of processes that are loaded during the computer’s startup.

If the user frequently notices that the Macbook is experiencing excessive heat, particularly during resource-intensive tasks or when the processor is under heavy strain,

it is crucial to allow the Macbook to cool down and return to its normal temperature in order to prevent any potential critical issues.

The design of newer Macbook models incorporates a fan within the system that operates silently. If your Macbook is not cooling down easily, one possible explanation is that the fan is not functioning correctly. This can lead to overheating throughout the entire system, including the front and back areas, as well as at the hinges.

Recommendations for troubleshooting the cause of the problem

Before you begin manipulating the computer components, it is necessary to carry out a standard reset of the hardware settings of the device. This procedure is often effective in resolving the issue of a black screen.

The steps for resetting the hardware settings are as follows:

1. Disconnect the laptop from the power source.
2. Remove the battery from the device.
3. Press and hold the power button for 25 seconds.
4. Reinsert the battery into the device.
5. Connect the charger.
6. The laptop can now be powered on.

Once you have reset the hardware settings, and the laptop successfully starts up, it will prompt you to choose the type of operating system startup – simply select "Normal Windows startup". However, it is also possible for issues to be related to the BIOS, which can be reset just as effortlessly. If updating the drivers and resetting the options does not resolve the problem, then the laptop will need to be disassembled.

Repair of induction motors

The most prevalent types of asynchronous power units for two and three phases. The sequence of diagnosing them varies slightly, hence it is important to delve deeper into this matter.

Electrical units can have two types of faults, regardless of their complexity: either a contact is present in the wrong place or it is completely absent.

The performance of a three-phase AC motor depends on three factors: the connection type of the three coils (delta or star), the operating voltage, and the frequency of the power supply.

If you don’t have a megohmmeter, you can use a regular tester to check for a short circuit in the body. Set the tester to the highest resistance value (megaohms). Keep in mind that the accuracy of the measurements may not be very precise, but you can still get approximate data.

Before measuring the resistance, make sure that the motor is not connected to the power grid. Otherwise, the multimeter will be damaged. To calibrate the tester, set the arrow to zero (close the probes together). Before measuring the resistance, test the functionality of the tester by briefly touching one probe to the other.

Assume that the laptop does not respond at all when turned on. Why does this occur and what should be done in this situation? First, it is important to check if the power supply system is functioning properly. Typically, there is an LED charge indicator located where the charger is connected. If the LED is illuminated, it indicates that power is most likely being supplied to the device correctly. If there is no power indicator or it is not lit, it is necessary to verify that the charger is working correctly, such as by connecting it to another laptop or measuring the voltage at the plug. In the latter case, a specialized tool called a multimeter is required, and knowledge of how to use it is necessary. Of course, the best option is to connect a known functional "charger" that has been tested on other computers.

If you’ve already ruled out the charger as the cause of your notebook’s malfunction, it’s time to check the battery. Sometimes, a faulty battery can prevent the notebook from turning on even when it’s connected to the power supply. Here’s what you should do: remove the battery from the notebook and hold down the power button for one minute. Make sure that no charger is connected to the notebook during this process. Then, without inserting the battery, connect the charger to the notebook and attempt to turn it on. If it still doesn’t start up, there may be a defect in the power module on the motherboard or a short circuit in the power circuit. It’s also possible that the motherboard’s BIOS firmware is incorrect. Unfortunately, diagnosing and fixing these types of issues without special equipment is almost impossible. In this case, it’s best to take your laptop to a service center for repair.

A potential reason why the laptop fails to power on could be a malfunction in the power button. The button’s contact group or supply cable may be damaged. On numerous laptop models, the button also has an illuminating feature. Hence, if the power indicator on the notebook is illuminated and the battery is functioning properly, but the power button does not respond to pressing, then the issue may lie with the button itself. In such cases, it is advisable to seek assistance from a professional workshop.

There are two utilities that can be used to adjust the rotation speed for both laptops and desktop computers. In this article, we will discuss these methods as well as address the main issues that may arise during the process.

Adjusting the CPU fan

Why don’t we give the Speedfan program a try? It’ll gather information on all the fans that have been detected in your PC and provide us with a comprehensive list.

There are two specific sections that we should focus on:

• velocity of rotation;
• accessible cooler controls.

The initial section signifies the quantity of speeds, while the subsequent section designates the options for adjustment. The software possesses the capability to autonomously identify the location of each cooler, with certain ones (such as the CPU – central processing unit, and the GPU – graphics processing unit) already being labeled.

However, this is solely under the most ideal circumstances. There may be instances where the program is incapable of detecting certain fans, in which case they will be listed as unknown. In such situations, it will be necessary to rely on a method of trial and error. You will need to modify the settings for each Pwm until you sense a change in the noise.

If there are coolers that are not being detected, it does not necessarily mean that they are non-existent or malfunctioning. In most cases, it means that the cooler cannot be adjusted for speed programmatically. More information about this can be found below. When making adjustments, please keep in mind that the percentage value you set for the cooler will remain consistent regardless of the workload.

If you would like these settings to be applied immediately upon system startup, please ensure that the corresponding box is checked in the Configure → Options menu:

This software is specifically created for controlling the fans of the graphics card. As a result, there is a single slider that allows you to adjust the fan speed. It is initially enabled, so you must disable it initially.

Once you have set the desired parameter, simply click "Apply". Located on the right hand side, there is a monitor that displays all the information in a graph. This allows you to easily track any changes in temperature, speed and revolutions of the video card. If you wish, you can also set the chosen parameters to be automatically enabled upon system startup. Simply check the box that says "Apply overclocking at system startup".

The aforementioned are just the main highlights of the program. It also offers an option where you can specify the parameters at which the video card fan should operate. To do this, navigate to Settings → Cooler and enable auto mode.