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30-40% fan speed (reference card) normal? - Page 2

post #11 of 18
Quote:
Originally Posted by Tori View Post
Is that normal? I find that if I keep the fan at 40% I barely go over 70C under load, but its really loud.
Perfectly normal for one of my 5770's in my crossfire config. Fact is, it does the job at the price of a little noise.

From what I can tell the custom coolers like TFII/III just blow the heat back into the case whereas the reference is designed to blow the air across the card and expel hot air out the back. That makes it louder, but it works.
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post #12 of 18
i have a gtx 260 (unknown if core 216) stock fan speed is 40% and its just a soft whirr
it idles and plays low spec games (quake 3, flash) under 48c
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post #13 of 18
i use 40% with old games and 50% with newer games.
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post #14 of 18
Yeah, I felt the same way. 40% fan speed is a little loud with a 6870.
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post #15 of 18
Quote:
Originally Posted by Neokolzia View Post
Cooling potential if you don't mind a jet engine tho in reference models is far far far higher.

All the non-reference designs win in Audibility/Load Temp, but you 100% fan the Non-refs and you still get like 80C + temps, and you'd be in the 60C's on a Reference.
This one needs some evidence.
I wish my hd5770 was cooled as you postulated, I had to increase fan speed whenever I wanted to overclock.
The issue with blower fans is that they are good in cramped situations with their high pressure, but when you wish higher performance, they cannot pull as much air flow as propeller(!) blades.
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post #16 of 18
Quote:
Originally Posted by mtcn77 View Post
This one needs some evidence.
I wish my hd5770 was cooled as you postulated, I had to increase fan speed whenever I wanted to overclock.
The issue with blower fans is that they are good in cramped situations with their high pressure, but when you wish higher performance, they cannot pull as much air flow as propeller(!) blades.
They don't need to because they are in such cramped high pressure situations. If you use a blower the other way it would be useless. And a propeller used in a ref cards blower spot would do awful.

Propellers pull air from front to back (depending on fan orientation) Blowers take air in and expel it through their blades to exhaust it out the back.
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post #17 of 18
I was talking about efficiency, just said that it would be awesome if they incorporated that because the pressure difference is one of the reasons of noise. Decibel = sound pressure.
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The Machine
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Nexus 7 2013
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post #18 of 18
We need cases that come equipped with better sound dampening so we can use those blowers at 100% :-p
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