How do I fix my PSU fan not spinning?

Try using a different fan header (terminals on your motherboard that connect to your fan(s)) to test your fan. You can use the PSU, case/chassis or GPU fan header. Laptop users will need to test on a different computer. If it spins, then the problem could be the motherboard or power supply unit.

Is the power supply fan supposed to spin?

PSU FAN DOES NOT SPINS. Not at all. But it doesn’t emit heat or anything.

How can I tell if my power supply fan is working?

The Answer

1. Plug the power supply into the wall.
2. Find the big 24-ish pin connector that connects to the motherboard.
3. Connect the GREEN wire with the adjacent BLACK wire.
4. The power supply’s fan should start up. If it doesn’t then it’s dead.
5. If the fan starts up, then it could be the motherboard that’s dead.

When should my PSU fan start spinning?

It will spin automatically when it warms up or when the load gets high enough. You can use the corsair link software(if you have the cable plugged in) to manually run it and monitors its temp.

Why does my PSU fan not spin at high load?

However, if the fan does not spin at all at high load, especially when playing heavy demanding games or running benchmarks, then it is a sign of worry and you should take appropriate measures to fix this issue as soon as possible. A faulty fan is one of the most common reasons for the ‘PSU Fan not spinning’ problem.

Why is my hp power supply not spinning?

I just got a custom build Pavilion Desktop 790-0050t from hp.com and I noticed that the 400w power supply fan was not spinning. I restarted the unit and noticed that the PSU fan does spin immediately on start-up but after a couple of seconds it stops.

What should I do if my power supply fan is not spinning?

You really should replace the fan (or entire power supply). If you don’t mind voiding your warranty, just unplug the PS from everything, give it half an hour for the capacitors to discharge, open it up, and replace the fan (80mm 12VDC). Otherwise, pick up a new power supply.

Why does my CPU fan spin when I plug it in?

If it spins, then the problem could be the motherboard or power supply unit. You can also use a known working fan and plug it on your motherboard. If it spins, then the problem is with your fan. If you have a multi-meter, test the voltage across the red and black terminal. It should be 3-5V or 12V, otherwise your motherboard or PSU has a problem.