Can higher fan speed raise heat?

[Anomaly1964]

I have been playing around with my fan speeds, CPU, Assist, Case...

My CPU actually seems to stay a bit cooler if my case fan is at 60% as opposed to 100%, does that make any sense?

 

[prtuc2]

The more voltage input the more heat the fan itself will generate to speed up the motor, however if the temperature at 60% is reaching to the limit moving up 100% generate no improvement but more heat. So, it does make sense air cooling always have a limit that is just one of the scenario.

 

[alaricljs]

There is no way that a fan produces enough heat for the CPU to notice. However the turbulence from the higher fan speed may produce a vortex or an air channel inside the case that traps heat.

 

[43st]

There is no way that a fan produces enough heat for the CPU to notice. However the turbulence from the higher fan speed may produce a vortex or an air channel inside the case that traps heat.

x2

 

[aigomorla]

There is no way that a fan produces enough heat for the CPU to notice. However the turbulence from the higher fan speed may produce a vortex or an air channel inside the case that traps heat.

well... its totally dependant on the fan... lol..

And i dont think its the vortex on the fan's because the sink blades are usually used to straighten those out.

If anything the higher fan power is probably pulling warm air from some location, instead of letting the warm air slide by.

So he's increasing his ambients @ cpu fan, by pulling warmer air from some other component.

 

[alaricljs]

well aigo, I wouldn't be surprised if you have a fan with specs measured in horsepower, so yes there are certainly fans outside the "norm" for PCs that produce heat.

As for the vortex, I was not referring to the fan-blade vortex but one produced by airflow over a number of components/cables/whatever and producing a vortex inside the case disturbing smooth airflow.

 

[aigomorla]

As for the vortex, I was not referring to the fan-blade vortex but one produced by airflow over a number of components/cables/whatever and producing a vortex inside the case disturbing smooth airflow.

oh then i basically repeated what u said but in a dumber version. lol..

 

[dkm777]

I have observed a similar thing myself. Except I was toying with fan configurations to balance noise and cooling and in the end found that using identical 1x intake 1x exhaust fans gave best results. I have fairly restrictive intake vents and HDD cage so the vortex/turbulence theory seems to apply perfectly.