Question CPU cooler not spinning on start up, R5 3600.

[Mercian]

I was having some serious high temps (100c) and big throttling and PC restarts so invistigated. I noticed the CPU cooler was not spinning. There does not seem to be a problem with the cooler because with the smallest persuasion it starts and works perfectly. Examples are YouTube vids now do not effect the temps at all when before they were high 70s c and Eden Ring which would send the temps upto 100c and restart my PC now runs at temps circa high 60s/low 70s c. I am wondering if it is a software issue. Can someone please advise?
Thank you.

 

[Lutfij]

If the fan doesn't fire up at the start, then the motherboard's header it's hooked up to can't provide necessary power to start spinning the motor. What motherboard are you working with? BIOS version for your motherboard at this moment? Make and model of your CPU cooler?

 

[sonofjesse]

Try a different FAN header such as CPU pump/optional
Try a different CPU fan.

Usually a symptom of a bad fan is you have to push it to get it going then will go........sounds like a bad fan.

 

[geofelt]

In the bios, look at the cpu fan curve.
If the curve starts too low, the fan will not get sufficient voltage to get it spinning.
Less than 500 rpm may not start some fans.

 

[Mercian]

If the fan doesn't fire up at the start, then the motherboard's header it's hooked up to can't provide necessary power to start spinning the motor. What motherboard are you working with? BIOS version for your motherboard at this moment? Make and model of your CPU cooler?

Thanks. It was a lose connection and is now sorted