[LAU] Any opinions on this ...

[Kjetil S. Matheussen]

On Mon, 26 Jan 2009, Kjetil S. Matheussen wrote:

>
> pete shorthose:
>> > > Have not tested this one:
>> > >
>> > > http://www.newegg.com/Product/Product.aspx?Item=N82E16817104035
>> > >
>> > > Pricey, but I have successfully used this one:
>> > >
>> > > 
> http://www.newegg.com/Product/Product.aspx?Item=N82E16817256047&Tpk=silverstone 
>> nightjar
>> > >
>> >
>> > I would go for either of these, although they cost a bit more.
>> > By mounting a silent 120mm fan running at 5V close to one of
>> > these, they should probably work just fine.
>> 
>> Perhaps I missed something here but aren't the above units fanless by 
>> design? why add a fan?
>
> Contrary to the fans included with PSUs, the fans you can
> buy separately can be silent, especially when downvolted
> to 5V. So to ensure you don't
> overheat a fanless PSU, which can happen if it's too hot,
> it could be a good idea to mount a fan close to the PSU.

That was a bit unclear. If I've understood correctly,
fanless PSU's turns off if they run too hot, that's
why you might want to add a little bit of air flow 
through it, especially if you run a hot CPU, etc. and
have no case fan.