Hi all!

So I have this XFX Core Pro 850w ... and lately it's fan is somewhat noisy - it's not too bad, but the noise is at a particular frequency which is really getting to me.

I want to change the fan (never mind warranty) ... to my knowledge the unit uses an Adda 135mm fan rated at ~80cfm and 32db (!).

I just can't seem to find a 135mm fan thou' ... so what fan would you ppl recommend. I was thinking of trying to fit in a 140mm fan ... or a 120mm and hold it in place with cable ties! Or do you actually know where i can get a 135mm from?

In any case - can you also let me know if i need a PWM fan - or just a simple DC fan?

Cheers all!