Laptop CPU Fan not showing up in any fan monitoring software.

[Mussak]

Hi,
Recently my built in cpu fan in my Acer Aspire V3-531G started being very loud and pretty much shaking my laptop when running,so i decided to check out the rpm with SpeedFan.But it couldnt detect any fans,so i tried HWMonitor;same thing here,no fan detected. Finally i tried going into the BIOS but I found out i have some sort of locked BIOS(InsydeH20).

Then I went through every TH post related to my issue but nothing worked,so I'm posting asking you for help.
Any idea on how i can check my fan speed and what might be causing to run very loudly,even though my laptop is fairly cool?

 

[webworkings]

If the programs you have tried are not detecting the fan I am unsure of another way to do so. However there are a lot more programs out there.

That said, if your fan is doing that, they usually act that way when dirty, overheating or dying.

If your laptop is under warranty, I would contact the manufacturer about a repair/replacement. If it isn't under warranty, then you can look into cleaning out the fan. If that doesn't help, try replacing it's thermal paste. Should that not do it as well, you may then have to replace the fan itself (and the thermal paste).