RE: 1U PSU's/heat removal

["Paul Gale" <groups@xxxxxxx>]

I put a bathroom fan extract into my Node0 (double wardrobe) and that
helpe=
d a lot with keeping the temp down (by 5-10 Deg or so). But it is in an
ups=
tairs room. Will also depend on ambient air temp of air flowing into the
ro=
om (and how quickly it can get into the room).

=20

I recently had aircon installed in my office which is about 3.5 x 5m -
Shar=
p wall mounted Inverter unit (very sexy looking) and 4Kw max power - even
w=
ith all my PCs and monitors going it cools the room down within a minute
or=
so :-) Pretty small unit but will cost around =A31200 - 1300 fully install=
ed! There are cheaper self-install wall units around though but not as
good=
.

=20

Trouble with loft mounting is that you still need an outside condenser -
ru=
nning in the loft, it's likely to overheat and shut down (no decent
install=
er would even consider this).

Paul.=20

=20

-----Original Message-----
From: Tony Butler [mailto:lists@xxxxxxx]=20
Sent: 31 August 2003 22:20
To: ukha_d@xxxxxxx
Subject: [ukha_d] 1U PSU's/heat removal

=20

Hi chaps,

Went mad.  Bought a 19" rack from gadget junkie and bought the epia
bits
to build a 1U linux (yes, me - linux, go figure!)  box.  Up and running,
with surprisingly little hassle - but the PSU is a noisy noisy bugger.
There is a label on the PSU that says "with Noise Killer" but I
think
they just mean "With Noise" :(
Starts out quietish, but (I guess when it gets hot in there) the noise
soon builds up -drowns out my shuttle box which I thought was noisy
itself.

Does anyone know of a source of quiet 1U PSU's?  This really is
intrusive :(

It also seems to add significantly to the heat in the room - what are my
options for reasonable cost cooling the room?
Is only about 2m x 3m, so not huge.  Don't have space for an aircon in
there - unless I could put something in the loft and just have a vent in
the ceiling?
Would I get away with a hole in the wall behind the 19" rack, with a
quiet extractor fan there?

Thoughts on either issue appreciated.

Cheers,

T.