Re: [very very OT] noisy power supply

[joost@topaz.mdcc.cx (Joost Kooij)]

On Thu, Jul 12, 2001 at 09:18:21AM +0200, thomas wrote:
> 
> > So my idea is: I open the power supply, flip the fan so that it blows
> > cool air from outside into the case, voila, much less noise. Is this a
> > good idea or rather stupid?
> 
> bad idea. you will move all the hot air in the case. if your man enough
> take you PSU apart and mod your fans to 7V, that will make it almost
> unhearable!

IIRC you need to switch the fan on and off in rapid succession,
it's called pulse width modulation.  Presumably, it's better for
the electronics inside the fan.

Cheers,


Joost