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Overclocking fans??

post #1 of 14
Thread Starter 
Hey guys, i just started my second case mod here http://www.overclock.net/case-mod-wo...-case-mod.html and I would do some tweaks with my fans....
They are the Cooler master R4's and i would like to know if I can overclock the fans and even fix a resistor to it in order to get more airflow and RPM's from them. Any ideas?

Thanks
post #2 of 14
Adding a resistor will slow it down not speed it up. You should just get better fans like the Yate Loon SH. They're cheap.
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post #3 of 14
Thread Starter 
Ooh, but is there a way to increase the voltage to make it get higher rpms? and I meant variable resistors/rheostat . sorry
post #4 of 14
Quote:
Originally Posted by O.CModderz View Post
Ooh, but is there a way to increase the voltage to make it get higher rpms? and I meant variable resistors/rheostat . sorry
A Yate Loon SH fan is about $3 at Jab-tech. I wouldn't try anything fancy to overvolt those fans you already have.

http://jab-tech.com/YATE-LOON-120mm-...d-pr-3771.html
Edited by Sheyster - 3/17/11 at 9:19am
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post #5 of 14
Quote:
Originally Posted by O.CModderz View Post
Ooh, but is there a way to increase the voltage to make it get higher rpms? and I meant variable resistors/rheostat . sorry
not sure that you can do it from PSU cause the max voltage is 12V and thats the max voltage used by fan.
Maybe there's way combining 5V + 12V but i'm not electronics guy
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post #6 of 14
Thread Starter 
ok, but those yate loons are sold at only 3 bucks?? nice...
post #7 of 14
Quote:
Originally Posted by O.CModderz View Post
ok, but those yate loons are sold at only 3 bucks?? nice...
I edited my post with the link to them.
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post #8 of 14
Quote:
Originally Posted by O.CModderz View Post
Ooh, but is there a way to increase the voltage to make it get higher rpms? and I meant variable resistors/rheostat . sorry
No... those lower voltages. You would need a step-up transformer.

Just buy a new fan.

Quote:
Originally Posted by Eaglake View Post
not sure that you can do it from PSU cause the max voltage is 12V and thats the max voltage used by fan.
Maybe there's way combining 5V + 12V but i'm not electronics guy
+5v and +12v = +7v

He could do -12v and +12v for 24v but this will burn out any +12v fan. PSUs no longer have a -5v line either.
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post #9 of 14
Quote:
Originally Posted by DuckieHo View Post
No... those lower voltages. You would need a step-up transformer.

Just buy a new fan.


+5v and +12v = +7v

He could do -12v and +12v for 24v but this will burn out any +12v fan. PSUs no longer have a -5v line either.
I mean 12V and 5V that could do 15V As I said no electronics guy.
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post #10 of 14
Thread Starter 
Hmm..... Maybe I'll get those 3$ fans the price is amazing
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