it's a fanless plan, man!

[Talik]

I'm trying plan a fanless ultra quiet water cooled system. I'm thinking that the best way to go is with a heat plate mounted on the side of the case, maybe built into the case wall. I don't need to overclock this machine, what do you think of this as a fanless solution?

Does anyone know where I might find decibal ratings for pumps?

ooh... maybe I'll go with a net boot and remove all hard drives from this baby, too.

[Monster811]

Check this out:

http://www.spodesabode.com/content/article/jamjar

He doesnt mention that it would be useful in a quiet system...

[bigben2k]

One link:
http://www.zerofanzone.co.uk/

[Axle]

@monster, it's cool, but a cele 400? It's like the passive (no pump) WCin with a K62 350...while cool ideas, not really useful with a Barton 2500. Neat, though

If burying something (like Blade & a few others) isn't possible- and it really is the best passive method- that you're of course looking at passive radiator design (or a bucket). I've tried a few, but what I've found works best is Gerwin's idea. Spirals work ok, too, when used in addition to my Gerwin rad my huge coil dropped 8c off my T-Bird 1.2. Gavin did a mighty fine job with it.

I think you may be thinking of something like this...I'd drop it in favor of a cheaper cu pipe solution, if I were you, but I love to see new stuff Also something to consider would be a real radiator, not a heater core, from a truck or van.. like here. Just ideas- I'm sure your own will blow all others away

Cheers

[Monster811]

Originally posted by Axle
@monster, it's cool, but a cele 400? It's like the passive (no pump) WCin with a K62 350...while cool ideas, not really useful with a Barton 2500. Neat, though

I wonder if several of those, larger of course, could be used in place of a radiator...no fans so it would be silent, just not very portable.

[Axle]

That'd be an interesting idea, except (with my very limited understanding of heat pipes, keep in mind) I don't know how possible it would be. Even using a liquid with a much lower boiling point than water (say even as low as 60c), 60c is still a bit too toasty for running a good ol fashioned XPer (well, for my tastes anyway). So you'd have to put the large bottle, or lots of small bottles, under pressure, which in return would effect the whole setup.. I just can't think of a way for 1) clearflex/tygon to withstand the pressure needed to lower the boiling point for this to be useable, and 2) for the pump to withstand it/ pump the water around.

But I really don't know, this is just an educated guess. I think I'll shut up now

edit// by pressure I mean air pressure, so you'd also need a compressor or some really strong lungs.. ah yes, the shutting up, I recall now

[Asmordean]

Fanless eh?

Well since you are looking at water you might consider passive evaporation as a means of cooling.

- Use a very large resivour with a great deal of surface area for the water. My res has 400cm^2 of surface area. It stablilizes at about 42°C in a 21°C room. I don't like it that hot so a 3V fan cools it down to about 31°C.

There are disadvantages of course -

1. You basically have to use tap water, too expensive to do it any other way. This means that you will be breaking down the system for a cleaning every-so-often depending on your water quality. My own system runs for about three months between cleanings.
2. Large open body of water for crap to fall in. Some cheese cloth can help here.
3. Large area needed.

[GTA]

Running fanless isn't as difficult as it sounds, I've always used a radbox, and have had everything watercooled ( including PSU ) in the past, and if your processor is relativly low powered, a heatercore with no fan should be fine.

I was running a 1600XP @ stock, with a JCB heatercore under my desk, and it was hitting 50 degrees at load, but I dropped the volts to under stock, and it topped out at 47, which was fine and stable for a long time.

The only problem I had was the PSU, I didn't do a great job of watercooling it, and it was getting very very hot, still worked for several months, but I got nervous and put a 5v fan back in it, just in case.

Just try it, and see what happens, if your system is still stable, then its fine, although it will run very hot.

I'm planning something like this as my next project, I can't lug my huge radbox to and from University next year, so I've got hold of a 4U server case, and I'm going to mount a chevvy core on each side, and have a 1048 Eheim mounted internally, and build an integrated copper HDD cage, with pipe running over it, and an integrated watercooled PSU, done like this one

http://www.digital-explosion.co.uk/i...p?articleID=65

( before, I bolted a waterblock to the top of the heatsinks that were already in the PSU, rather than replacing them like this one )

Good luck to you anyway