Speed rated at zero pressure mean?

Firebird-jpx · 9 Nov 2013 at 16:38

Dear Members,

Please can you tell me what "Speed rated at zero pressure" mean?

I only ask as I have purchased a 80mm Fan on e-bay and within the description it states "Speed, 4500RPM at rated voltage and zero pressure."

Sorry to ask this 'PC fans for dummies' question.

Regards, Jonathan

RJC · 9 Nov 2013 at 16:47

I assume he means the fan does this without being connect to a heatsink or any restriction.

Wonder what speed it will do if it has a restriction!

Firebird-jpx · 9 Nov 2013 at 20:22

Dear RJC,

So does is this the actual speed, just like the "Coolink SWiF2 80mm PWM fan at 750-2000 rev / min , sold on overclockers?

Or will be lower? in reality?

Thanks Jonathan

stulid · 9 Nov 2013 at 21:11

One thread will do - http://forums.overclockers.co.uk/showthread.php?t=18556069