[CentOS] Checking fan state

> Either I put the power connector on backwards (the manual's pic is not 
> clear on this, but I don't know if that connector CAN be put on 
> backwards), or there is something with the bios with this new fan...
> 

Is not there a plastic guide on the three pin connector?

I wonder if upgrading the lm_sensors package would mean you being able 
to read fan speed/stuff...