CPU fan RPM showing at 0

[GamingPC 4]

So I week back, my PC crashed on me and I got the 'green screen of death (Windows 10). Today, my PC crashed (while only on Wikipedia) and I got a blank green screen with no text at all.
Anyway, I restarted my PC manually and checked (for the first time) the MSI Command Centre app to check on the CPU and it constantly says the CPU fan is at 0 RPM. I have never used this before so I don't know if I should try to change it in any way or if this is normal but I don't feel good about it.

Any help would be greatly appreciated and thanks in advance

 

[DRagor]

Open the case and check if your CPU fan is spinning.

 

[GamingPC 4]

Open the case and check if your CPU fan is spinning.

Ok yeah, thanks I did that and it seems to be spinning nicely. Any idea why it is saying that it isn't spinning? Also, could the wire from a fan attached to the side of the case be getting n the way of it? or would I clearly hear this?

 

[YoAndy]

When you see the error message "CPU FAN Error" in POST, it means the system doesn't detect the FAN.

You can refer to the steps below to resolve the issue.

1. Please make sure the CPU FAN is installed on the right position of the motherboard and twist the screws tightly

2. Ensure that the CPU FAN cable is securely installed to the CPU_FAN connector instead of the CHA_FAN.

3. If you install another brand of CPU FAN with lower revolutions speed, the system may not be able to correctly detect it.You can try to set "CPU Fan Speed Low Limit" to 200 RPM in BIOS configuration.

* "CPU Fan Speed Low Limit" appears only when you set the CPU Q-Fan Control to [DC Mode], [PWM Mode], and [Auto]. For those early versions, you need to set the CPU Q-Fan Control to [Enabled], [Advance Mode] or [Auto].

4. You can set Monitor->CPU FAN Speed to [Ignore] if you don't want to open the computer case.

*You can set the CPU FAN Speed to [Ignore] if your computer already comes with a liquid cooling system.

5. Update the BIOS to the latest version.

 

[DRagor]

Ok yeah, thanks I did that and it seems to be spinning nicely. Any idea why it is saying that it isn't spinning? Also, could the wire from a fan attached to the side of the case be getting n the way of it? or would I clearly hear this?

If the fan is spinning and yet you see 0 RPM in software, it's clearly bad reading. Sometimes software used cannot detect automatically what motherboard you have and will not know how to read the speeds or temps properly. You can either try to change some settings to make it work, or use different software.

 

[Paperdoc]

I'm hoping that, since you have already assigned Best Solution (and a good choice!) you have the problem solved. We'd be interested in what you fixed.

FYI, a couple of additional points. What you describe MAY be simply a poor connection on the fan speed signal line. If the MSI app that came with your mobo says the fan speed is 0, but the CPU actual measured temperature is normal, it is VERY likely that the fan is running and cooling properly. In fact, you have observed fan running OK. Mobos all do some checking of fan speed signals to detect fan failure and send out warnings if they get no speed signal. Many mobos do EXTRA checking of the CPU cooler system. There is already a system that protects the CPU from overheating based on its measured internal temperature, and that will slow or shut down the system at high temps. But in addition, some mobos watch the CPU fan signal carefully. If it gets no signal it assumes the fan has stopped working. Then it will issue a warning and very shortly thereafter it will shut down the whole system to prevent the possibility of CPU overheating, even though the temperature probe inside the CPU has not yet shown high temperatures. So a fan failure - OR a simpler cause of failure to get the fan speed signal back to the CPU_FAN header - can trigger a sudden shut-down. Sometimes the real cause is mild corrosion (oxidation) of the metal contacts in the CPU_FAN header and fan connector. That usually can be cleared by simply (carefully) unplugging that fan and then plugging it back in again several times. This action can "scrub" the contacts clean so it works again.