Aquarius II Water cooling

 > Unfortunately I've found that you still need case fans when watercooling
or
 > a whole bunch of other components on the motherboard run ridiculously hot.
 > Plus the PSU needs at least some airflow through it. I do drop all the
fans
 > to 7 Volts but my systems aren't silent...

Depends how much you watercool - if you only do the CPU, then the graphics
card, hard disk, power supply, etc will all still be pumping out heat into
the case, which needs to be removed with fans more likely than not. If you
watercool the graphics card and hard drives with the CPU, then that will
take a lot more heat out through the water. I think a PSU fan is just about
always needed though, unless its a low power one or speially designed to run
without a fan. The problem with PSUs is that there are usually multiple
components running hot, not with a single flat surface, so it can't really
be watercooled, or use heat pipes, or anything really (although i've seen
one which seemingly was completely sealed and filled with oil (I think)
which was pumped around to keep it cool).
I'm in the middle of making my setup, and will have waterblocks on the CPU,
graphics card, and one on each of three hard disks. That should remove most
of the heat, with only really the PSU and the northbridge of the motherboard
still pumping out heat - hopefully that will leave the PSU fan, possibly one
other fan running slowly, and the hard drives making noise. I'm putting the
water pump in a very well insulated case so the noise from that should be
negligible, and the two radiator fans will be big fans running much slower
than normal, and are barely audible in operation - once mounted in the box
and under the desk they should not be a problem.

David<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Aquarius II Water cooling 

"David Walker" <wbsdavenews DeleteThis @hotmail.com> wrote in message
news:bilttc$54i$1@wisteria.csv.warwick.ac.uk...
  > > That should remove most
 > of the heat, with only really the PSU and the northbridge of the
motherboard
 > still pumping out heat -
 >

David,
A word of caution. On my IT7 Max2 v2, the Northbridge temperature soared
upwards when I introduced water cooling to the CPU. The reason: as it is
located not far from the CPU, it relies on some of the airflow from the CPU
fan cooler to take away stale air from its small heatsink. I found it
necessary to direct airflow from a fan onto the Northbridge to bring the
temperature back down again.
My advice: measure Northbridge temperature pre-and post watercooling and if
necessary take additional cooling measures. What about a Northbridge cooling
block?
Tony<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Aquarius II Water cooling 

"David Walker" <wbsdavenews.DeleteThis@hotmail.com> wrote
 > Depends how much you watercool - if you only do the CPU, then the graphics
 > card, hard disk, power supply, etc will all still be pumping out heat into
 > the case, which needs to be removed with fans more likely than not.

I always watercool Northbridges for overclocking stability but haven't
bothered with any graphics card since a Voodoo5 5500 that wouldn't run
properley when watercooled. HDDs I've only found to get too hot when they
have little or no air passing over them - even a 60mm fan on 7V seems
sufficient to cool 4+ HDDs adequately as long as the air is ducted over
them, so I haven't bothered with watercooling them either.


 > If you
 > watercool the graphics card and hard drives with the CPU, then that will
 > take a lot more heat out through the water. I think a PSU fan is just
about
 > always needed though, unless its a low power one or speially designed to
run
 > without a fan. The problem with PSUs is that there are usually multiple
 > components running hot, not with a single flat surface, so it can't really
 > be watercooled, or use heat pipes, or anything really (although i've seen
 > one which seemingly was completely sealed and filled with oil (I think)
 > which was pumped around to keep it cool).
 > I'm in the middle of making my setup, and will have waterblocks on the
CPU,
 > graphics card, and one on each of three hard disks. That should remove
most
 > of the heat, with only really the PSU and the northbridge of the
motherboard
 > still pumping out heat

The motherboard Voltage regulators put out quite a lot of heat too -
methinks that's why Abit have fitted a fan passing air over it with their
latest 'MAX' mobo.


 > - hopefully that will leave the PSU fan, possibly one
 > other fan running slowly, and the hard drives making noise. I'm putting
the
 > water pump in a very well insulated case so the noise from that should be
 > negligible,

Depends which pump you have but all seven I'm running at the moment are
virtually silent - all Eheim 1048s and 1250s. The 1250s do vibrate a
little, so I've fitted them on rubber mounts, but the 1048s don't even need
that. I have one much more powerful pump (Otter 3000) that is rather noisy
but it can sit outside the house with the big radiator it supplies when I
get around to putting it all together.


 > and the two radiator fans will be big fans running much slower
 > than normal, and are barely audible in operation - once mounted in the box
 > and under the desk they should not be a problem.

Try it and then put your finger on some of the other components - be
prepared to leave some skin behind if you have little or no airflow over the
motherboard itself. I don't have them bookmarked but there are a few
websites out there with IR imaging shots of various motherboards & some
parts were running over 100_C_ when overvolted for overclocking.

Ciao...

[UK]_Nick...<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Aquarius II Water cooling 

"Tony Scott" <hascott1 RemoveThis @hotmail.com> wrote in message
news:bilv3o$vob$1@newsg3.svr.pol.co.uk...
 >
 > "David Walker" <wbsdavenews RemoveThis @hotmail.com> wrote in message
 > news:bilttc$54i$1@wisteria.csv.warwick.ac.uk...
   > > > That should remove most
  > > of the heat, with only really the PSU and the northbridge of the
 > motherboard
  > > still pumping out heat -
  > >
 >
 > David,
 > A word of caution. On my IT7 Max2 v2, the Northbridge temperature soared
 > upwards when I introduced water cooling to the CPU. The reason: as it is
 > located not far from the CPU, it relies on some of the airflow from the
CPU
 > fan cooler to take away stale air from its small heatsink. I found it
 > necessary to direct airflow from a fan onto the Northbridge to bring the
 > temperature back down again.
 > My advice: measure Northbridge temperature pre-and post watercooling and
if
 > necessary take additional cooling measures. What about a Northbridge
cooling
 > block?

Yeah, could do that too. I'll see how hot it gets and if its much worse
i'll add a block for northbridge too. Mine (an A7N8X-Deluxe) does have
quite a big heatsink on there, so i might play around with fans too -
something for me to watch and be careful about anyway.
Thanks

David<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Aquarius II Water cooling 

 > I always watercool Northbridges for overclocking stability but haven't
 > bothered with any graphics card since a Voodoo5 5500 that wouldn't run
 > properley when watercooled. HDDs I've only found to get too hot when
they
 > have little or no air passing over them - even a 60mm fan on 7V seems
 > sufficient to cool 4+ HDDs adequately as long as the air is ducted over
 > them, so I haven't bothered with watercooling them either.

I wasn't planning on overclocking heavily really, the watercooling is more
to reduce the noise. Then again, if I can get a lot more out of it by
watercooling the northbridge, then I might as well do that too.
My hard drives do tend to run quite hot, and often have quite intensive
access on them for long periods of time, so I prefer to keep them cooled -
apart from anything else it should reduce the risk of failure and data loss,
and will take quite a bit of heat out of the case. At the minute I have two
80mm fans blowing over the three hard disks, usually running at ~8v, but I
switch them to full speed if i'm doing any big file transfers or anything
with intensive disk activity.
My graphics card (an ATI 8500DV) really does need cooling though - at the
minute its got a buzzy little fan on, so I want to remove that and watercool
that too. Again noise is my major concern.
Thanks for the advice anyway - seems like a watercooled northbridge is the
way to go.

David<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Aquarius II Water cooling 

This thing gets No respect- no one will take it seriously due to its
small caliber tubing (5/16" ID).
I must tell you that I adore this thing- I keep a twin pair in case I
decide to run parallel circuits with a waterblock on my VGA chip.
But at present I have one block on my P4-2.6C and the radiator is
submerged in a bucket of cold water. The bucket is styrofoam in the
summer and copper in the winter. I run my 2.6 at 3.2 GHz and it stays
quite chilly (80F at idle, and 100F at 100% load with multiThreading.)

It's silent, of course, but also cheap , small, and elegant. I love it.
--
Valid spambot resistant address: deanATyniDOTnet
 >> Stay informed about: Aquarius II Water cooling