fans saying n/a in bios

[ssggamer]

when I start up my computer, I get the message cpu fan speed error detected. So I go into my bios and all my fans are coming up as N/A. The only fan that it shows me the rpms is the cpu opt fan at 1893 rpms. The cpu fan says n/a along with all the others. I open up my case and the fans seem to be running fine, but why arnt they shown. I don't know a lot about computers and I just got this one custom built. My bios is also saying the cpu is 32 C. Is this temp ok at start up. Also, why are my fans saying N/A, and is the cpu opt fan my cpu fan.

 

[Shaun o]

If you look in your bios where you look at each of the listed fans and there RPM.

If you scroll right down to the bottom of that page you will have a fan RPM error warning.
You can increase or lower the set value of that option.
Any fan in your system that is spinning bellow that set value will cause the speed error detection message to appear when you boot your system.

You can enable or disable in you bios on what fans are monitored, and there rpm rate displayed in your bios.
If you have a Uefi bios you will need to be in the advanced mode to reach the settings for Rpm speed of each fan attached to your system you wish to monitor