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PSU fan control - how?

post #1 of 10
Thread Starter 
How do I control the speed of my PSU? I have BFG's 650W psu, the SLI certified one. speedfan only shows me the cpu and chassis fan, but the BFG psu is way too dmn loud!!!!
Minotaur
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Minotaur
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post #2 of 10
Sorry, but there is no *viable* way to change fan speed of a PSU.
    
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post #3 of 10
Thread Starter 
um, please tell me the non-viable way.
I have an FSP 400W forton sparkle, but i dont wanna take out my mobo just to reinstall it again. plus odds are when I get my DX10 card, the sparkle wont be enough. Plz helpl?
Minotaur
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Minotaur
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post #4 of 10
If you wanted to take the *risk* of opening up the PSU, you could splice in a fan controller between the BFG fan and wherever on the PCB it draws power from if you've got an extra one lying around. You'll most likley have to do some soldering work, as most of the time the fan leads are simply soldered on to their connections in a PSU. It'll be ugly, and is not safe either, due to the high currents stored in the power supply.
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post #5 of 10
If it runs to slow there can be issues...
1. With heat you gain degradation of the power.
2. With heat you also degradate the components.
3. 1&2 are why the fan is as loud as it is.
4. Modding it voids the warranty.

Voiding the warranty if you so chose.
Find out what the actual CFM of the current fan is.
If possible, increase the diameter and at least match the CFM.
Like put a 120mm on the top and dump the 80 or 92mm fan at the rear.
    
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post #6 of 10
Thread Starter 
dang. Sadly I cannot fit a 120MM fan on the front or back. there is no hole on the bottom like with the FSP otherwise I woulda used my TT BT fan on it.. Guess Im gonna have to sell it. I usually leave my comp on overnight, and it would DEFINETLY bother me while I sleep.

EDIT: by the way, what is THE QUIETEST PSUs over 600W on the market right now?
Minotaur
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Minotaur
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post #7 of 10
a quiet one is the pcp&c silencer 750
my ghetto system
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my ghetto system
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post #8 of 10
Thread Starter 
meh. screw it. Im going back to my sparkle. I'll sell the BFG and when I get my new GPU, then I'll look for a PSU with a 120mm fan.
Minotaur
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RatPadz GS 
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Minotaur
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WD: 2*500GB Raid0 + 2*2TB 2*DVD RW Optiarc+Samsung Windows 7 64-bit 24" ACER Widescreen HD 
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post #9 of 10
My Thermaltake 750W is amazingly silent and has a 140mm fan on the bottom
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Main Rig
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post #10 of 10
Open it up, throw out the fan inside, buy a silenx fan, replace it.

OR you can mess with the fan inside to make it spin slower, and risk damaging something.
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