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Modifying 1000w Cougar Psu Fan

post #1 of 10
Thread Starter 
Ok so this power supply Is awesome plenty of power and everything, But its too loud when under load . How dangerous would it be for the power supply if i just spliced a wire or two and set the fan speed to a adequate level with a fan controller? Or maybe just put in a new fan in it.
I did this before with a lower watt Psu but it wasn't under this much drain so i am unsure, Just looking for some opinions on the matter

This is the power supply http://www.newegg.com/Product/Product.aspx?Item=N82E16817553004
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post #2 of 10
No reason for it to be loud, but that does depend on what you call loud. You could just replace the fan with something else that has the same specs in terms of size, CFM and wattage
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post #3 of 10
Thread Starter 
It's not mind blowing loud, I forgot to mention it only revs up under load then goes almost silent any other time.But its still too much for me i like Graveyard silent parts.
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post #4 of 10
Thread Starter 
Is there any way to monitor power supply temperatures? I thought Everest did but i only get HDD temps now
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post #5 of 10
power supplies dont have thermal probes so there is no way to measure the temp on one without modding it and installing probes, and then you would need a monitor that displays the temp. there is also a lot of parts in a power supply that you would want to monitor temps on, not just the regulators and rectifiers.

most power supplies use a thermal resistor to increase and decrease the fan speed. the thermal resistor decreases its resistance as it becomes warmer and allows the fan to spin up. there is really going to be no way around this but to try and cool the power supply more. so i would start on improving any airflow through your case.
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post #6 of 10
Thread Starter 
The Power supply has excellent airflow Up or down it never gets that warm, Its just not a very quiet fan. I tried putting like a zillion fans to blow a lot more cold in air into it But it had no effect. Also reset all my overclocks to stock it still revs up past my tolerance. At this point i guess ill just deal with until i snap and either sell it or dismantle it, Cougar they said it was "Super" quiet frown.gif those liars
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post #7 of 10
Super quiet could mean anything to a company. They might mean the fan is only 35dB and call that quiet. You could try replacing the fan with another. Id recommend a Arctic Cooling PWM fan. They move a lot of air and only put out 22dB
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post #8 of 10
Thread Starter 
I'm thinking about putting in a spare Noctua NF-P14 FLX, But I have no idea if it will fit. But in any case the fan Isn't what I'm worried about, Its the fact that it might be too much of a risk for the unit. I'm guessing its a 50/50 chance I either burn it up or shorten its lifespan if it doesn't have an adequate airflow . That is why I'm on this thread i have a low understanding of how delicate the parts in a power supply are. To the best of my knowledge as long as i can match the airflow it should be all good.
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post #9 of 10
PSUs are fairly resilient. Cougar come from a decent OEM so I would put some faith into the build quality.

If you were to swap fans, I would still recommend trying to keep a fan that pushes 65CFM+. If you plan on getting up to 80% load or more, that's where it will be most critical to keep it cool.

Overall, I would say forget opening the PSU unless you have to and find one that IS quieter off the bat as those will still carry a warranty and provide ample cooling.
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post #10 of 10
Thread Starter 
Well looks like its staying in there, Thanks for all the input
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