When i bring the rpms around 4000 i heard a noise coming from the computer itself... has this happened to anyone before? it sounds like a low clicking noise....

 

lol my car does that all the time. i think it's normal, in my car it does it in the higher RPMs or when i push my car

 

I have never heard any PFC make clicking noises. There is a relay control box near it that is part of the cooling system recall and other similar devices nearby.

Maybe you should do some detective work instead of making assumptions.