The CPU fan is usually supplied with a 3V or 5V from the PSU (power supply unit) on laptops and 12V happening desktops. The port that the fan connects onto the motherboard is known as the fan header. Most fans have 3 wires/pins. One to supply the voltage (cherry), other is neutral (melanise) and the other is accustomed control the fan speed (icteric). The CPU fan is then controlled past the BIOS in a stepped chemical mechanism. When the temperature goes beyond the limen, the fan normally comes on. The more the temperature and CPU loading, the quicker the fan spins. If your BIOS has been misconfigured or is outdated, you might have problems with your rooter.

If your CPU fan does not whirl, the upsho could beryllium anyplace from the fan, the motherboard, to the magnate supply unit. The sports fan buns pay off clotted with scatter and lint hence preventing it from spinning. The wires going into the fan terminate also get in the way of the rooter blades and prevent it from spinning (these fans don't have a good deal of torque). Your motherboard could also personify the problem; if the circuit supplying the power to the fan is fried/short, then your fan will not be able to spin. The same problem could originate from the PSU (power supply unit) if information technology is not able to output the 5V surgery 12V to power your sports fan. Of course of instruction, for laptops, the PSU is usually blended onto the motherboard.

Remember that IT is normal behavior for the Mainframe fan to stop spinning when the CPU temperatures are low or you are non running any force-hungry applications.

In order for your computer to function at its optimum, chilling is essential. This ass be done by use of cooling systems, coolants, and more popularly, past use of cooling fans. IT is therefore alarming when you notice that your CPU cooling fan is not spinning. Patc this might non cost a cause for alert on its own, when combined with overheating of the CPU IT is decidedly a red alert. There are several fans in a computer, including a PSU (big businessman supply unit of measurement) fan, CPU (central processing unit) fan, case/chasis fan, and the GPU (graphics processing unit) fan. Laptops usually have ace fan to save on space and free weight. Users have been having a common problem with their CPU fan not spinning; the computer and then overheats and throws a BSOD then shuts down attributable caloric monitoring. For others, the computer does non start out in the least. During iron heel process, they power see a fan error. In both cases these are usually mechanisms that prevent the computer from overheating because the fan does not work. This article will tackle this issue, depict you how to troubleshoot and hold you standard solutions to this problem.

Troubleshooting your CPU buff

The issue could be your fan, motherboard or power supply unit of measurement. You can habit the methods below to tell where the problem is.

Try using a different sports fan header (terminals along your motherboard that connect to your fan(s)) to test your fan. You tail end use the PSU, case/chassis or GPU rooter header. Laptop computer users will need to test on a disparate computer. If it spins, then the job could be the motherboard operating room power provide unit.

You can likewise use a notable working buff and plug it on your motherboard. If it spins, past the problem is with your fan.

If you have a multi-meter, test the emf across the red and black terminal. It should be 3-5V or 12V, otherwise your motherboard operating theatre PSU has a problem.

All computers have system diagnostic tools and the Mainframe fan is one component tested hither. Unopen down your computer and press the powerfulness button. Immediately press F12 to enter into the system boot options. On the boot menu screen, pick out the Diagnostics option. The PSA+ window is displayed, listing whol devices detected in the computer. The diagnostics starts running the tests on entirely the detected devices. Once the test is complete, a substance prompt will appear "if you want to proceed memory test" select no. Then 32-piece Diagnostics will Be initiated, select custom test. Now select fan as a specific device and bleed the mental testing. Once the test is accomplished the results will appear and make a observe of the log displayed. If you get an error message so much as: "Fan-The [Processor Fan] failing to react right. Error code 2000-0511. Validation 13133" then you're your engine cooling system is stone-dead and leave need replacement.

Below are some of the common solutions to this problem. The methods mentioned can get expensive quickly since this could be a hardware problem thusly we have started with the inexpensive methods.

Method 1: Restart your computer

The CPU fan can well be stopped up with a finger's breadth or debris since IT does not have much torque. To prevent the devotee wiring from frying or any other impairment, your rooter will end spinning even if you remove your finger surgery the debris. Restart your computer to limpid this error.

Method 2: Clean your winnow aside blasting it with compressed air

Fans commonly stimulate clogged with dust. The buildup could make the fan blades and prevent them from spinning since these fans do not produce a lot of torsion. You can disassemble your rooter and clean it. If you are non sure how to do that, get a can of compress air and blast it into the fan vents. Make sure that your fan does non get to high RPMs (Rev) since IT may damage the fan.

Method 3: Unobstructed any wiring from the fan blades

Since CPU fans do not produce a lot of torque, wiring active into the fan motorial can halt the blades from spinning. Raze your rooter and make sure that on that point are nobelium wires OR anything going into the fan blades. Unassailable the buff wiring onto the side using epoxy resin to check they do get in the way of the fan blades.

Method 4: Reset/Flash your BIOS

Your BIOS controls your fan. Resting it will clear any misconfigurations and get your fan on the job. To readjust the BIOS:

  1. Fold your Microcomputer
  2. Press the power button and immediately press F2 to enter into BIOS frame-up
  3. Press F9 (or the load defaults button shown on the BIOS screen) to readjust your BIOS
  4. Press Esc or F10 and select "save and Exit" press Enter and allow your system to re-start so check if the fan now whole kit.

You can also reset your BIOS by removing all power cables, bombardment, and removing the CMOS assault and battery and pressing the world power button for at least 30 seconds.

Method 5: Replace your buff

If you bear tested your buff on another PC and it doesn't work, or you take over tested a known working fan happening your PC and it still doesn't spin, past you will need to get a new fan. You should also check that you are getting a 3-5V or 12V on the CPU fans terminals to avoid any doubt.

Method 6: Supercede your motherboard

The only steady way to know if your motherboard is the problem is to test a working C.P.U. lover on your PC. If it also doesn't spin, then you volition need to supervene upon your motherboard. If you have electrical skills, you backside test if the CPU fan voltage output is betwixt 3-5V or 12V. If there is no voltage or IT is under 3V and then your computer is not able to supply plenty power to run the fan. You will need to replace your motherboard.

Make sure that your motherboard fits with your powerfulness supply whole and other components or you will have extra costs replacing the other components too.

Method 7: Substitute your power supply unit

Replacing the motherboard is not usually a guarantee to solve this problem if you are on a background computing machine. Since laptops desegregate the PSU onto the motherboard, replacing the motherboard will fix the job. Desktop computers have a separate power supply unit that supplies 3V, 5V, 10V and 12V to your motherboard. If the 5V or 12V supply is dead, your fan wish not work. This will therefore need your to replace the PSU.

You can tell that your PSU needs replacement when you get beeping sounds, or in that respect is more than one component that won't work (your varan, buff, USBs, keyboard, mouse) or the computer starts for a while and so shuts down immediately.

Make sure that the PSU you are getting has similar supply ports with your substitution PSU other than they will not be compatible.

PS: If your CPU is overheating and you pauperism inexpensive methods to sang-froid it, you commode check our article on how to lower cpu temperature