Changing PSU Fan/speed?

Soldato
Joined
3 Feb 2008
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5,566
Ok, say i'de managed to kill all other fans/noise in my computer, but the PSU is still whirling away happily ruining all my hard work. Can anything be done about this besides buying a quieter PSU? If possible i'de like to avoid that, since it's brand new and so far incredibly good (Pc Power & cooling 750W)..

It only uses one 80mm fan at the back, which whilst the design seems good for high load, at idle it still need to spin that little faster to pull the air through..

So a few questions:

1) Has anyone modified their PSU with a different quieter fan?
2) Has anyone changed the fan profiles of a PSU?
3) Has anyone noticed a distinct difference in noise going from a standard top mounted ATX case to a compartmentalised one, such as the Antec p182? Maybe the 120mm fan infront letting the PSU work less?
4) Are heatpipe PSU's like the Zalman ZM850-HP much quieter than good quality psu's at idle?

I've concluded with all i've read on here about everyones psu's being 'silent' i'm far more prone to it than others. Either that or you're all lying :p It's certainly very very quiet during the day, but that's when there is often a load of ambient noise about, and i want it to be really really quiet at night, when i'm trying to sleep! (Without turning it off; smartass) I don't care about how much noise it makes under load, as when it's under load it's safe to assume it's being used, thus i'l have some music on or headphones etc. I just want it to be quiet when doing small tasks like web browsing, large downloads, etc.
 
If you open the psu you will void your warrantly and risk electric shock as the capacitors store power for a long time after its been switched off, I wouldn't advise opening it up.

The Be Quiet! PSU's enable you to control the fan speed via the motherboard fan headers.

What case do you have atm?
 
Shamefully, it's all plugged into a Coolermaster 330. So no sound damping, small. But airflow to the PSU (and all components really) is fine. Problem is with the sound always able to escape out of the back of the PSU, i'm unsure what a better case would do.
 
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