Fan 'always on' AMI BIOS Pavillion

[Harry Bloomfield, Esq.,]

New laptop, busy setting it up and I'm finding the fan noise very annoying and constant on mains. On battery it is intermitant.

In the BIOS I found a setting 'Fan always on' with the option of on/off. Setting it from its default on to off, it does seem a bit slower/quieter. Am I OK to do this?

[Scion]

Yes, it won't cause a problem.

If the CPU heats up then the fan will come on to cool it. It's possible - likely, if you're a heavy CPU user - that the fan won't be on all the time but runs much faster when it does come on.

There'll be a cutoff point where the PC will power off if the CPU gets too hot.

I use a monitoring tool HWINFO to see CPU core temps, fan speeds etc. It's at

but if you're wary (as I am) of clicking random URLs then Google for Dell HWINFO, the link 'Steps for analyzing overheating or loud fan...' points to a Dell site which references (and links to) HWINFO. So a more believable source than a random Usenet reply :-)

[Fredxx]

I use Core Temp which is freeware. It's compact, gives the CPU temperature and clock frequency.

It is worth looking at Windows power settings where you can choose a setting for CPU speed according to demand.

[Harry Bloomfield, Esq.,]

Fredxx a écrit :

Got it :-)

This -

Dropping the max on mains power to 80% brought peace and quiet. At that, the fan throttles back to barely a whisper, with <30C core.

[Brian Gaff (Sofa]

If its still put on if needed then probably, but the machine in the always off position may throttle back the processor to keep it cooler instead of course. Brian

[Allan]

My 2p's worth: I like

monitoring temperatures, will put output in the task bar and has a widget for the desktop.

[Fredxx]

The default for Windows 10 is CPU min 5%. I'm surprised you've had to change it.

Did you notice he uses Core Temp too?