"Colloseum" WC System - 2700MHz passive!

[heatwave]

Here is my updated "chux" watercooling system:

* 10L shallow bucket
* 500lph U$10 Jebo brand pump
* 46 200mm sprinkler risers + sprinkler piping for circular arrangement
* a pack of chux wipes wrapped with tie wraps
* generic hosing and connections
* Swiftech MCW-5002A GPU waterblock
* Swiftech MCW-50 GPU waterblock

Running a system at:

* XP2400+ Mobile 35W @ 2700MHz (207x13) @ 2.016 Vcore
* X800 Pro VIVO, voltmodded (Vcore & Vmem), running XTPE BIOS, 16 pipes at 590/570 (memory hasn't been upped - no heatsink yet), 1.77v GPU vcore.

I only managed to be able to run 2400MHz with an SLK800U heatsink with a 12V 80mm Panaflo at max. 49C loaded CPU temp. Along with several case fans as well.

Now with this PASSIVE setup - I can run 55C max. load CPU and 38C max. load GPU @ the current 24C ambient daytime temperature.

The X800 Pro VIVO I got was a crappy card to begin with. It wouldn't even do the XTPE BIOS softmod without crashing immediately after boot.

[PaintPro21]

crazy man. just crazy. but i like crazy

maybe you might want to experiment with a better pump

ooOO and how about a big room fan blowing on it if i was at your house id probably throw stuff in there thinking its a waste basket


PS: more pics

[BMORIN]

Can't believe you only had one reply in this thread, very ingenious. Nice results

[voice]

I thnk thats sweet(im noob) what is those things all around the water for?

[aikitim]

um...i dont get it....what exactly did you do? is it just a passive wc or did you do something awesome and i just dont understand wtf is going on in the pic.....

[heatwave]

Allright, I'll explain. The idea was to use sprinkler risers which I bought from hardware shops and wrap some *chux wipes* around it. Any fabric wrapped around will do - the purpose of the fabric is to ****** the flow of water trickling down and maximise surface area where the water is in contact with the air.

This is where this system wins against radiator-closed loop system. With the evaporative cooling, water immediately is in contact with the air and evaporates straight away. By utilising the latent heat of water, evaporation (the phase change) takes considerable heat out of the system.

With a radiator system, the water has to conduct through the metal fins which - more often than not, have to be cooled with forced air.

As sprinkler hosing and risers are quite resistance free, a very low flowrate pump can be used.

I have yet to test the system during seriously hot summer months - its just spring for us down here. But I was told if you do put a fan next to it - performance would increase even further.

[aszyd]

Con: You have to refill the water all the time. With a closed loop you fill it and let it run just about forever.

Even with that downfall, evaporative cooling is really neat.

If I was going to take the space, I would build a chiller. More expensive, yes, but also more effective.

[heatwave]

Yes, the downside would be I'd have to refill the tap water every 2 days - the system consumes about 2L/day as it runs 24/7. It's not such a big deal really since thats about the same time it takes me a few short minutes.

But the point of going watercooling is to find a cheap, reliable and as close to silence as possible and able to extract decent performance over conventional air cooling.

Sure chillers, peltiers, vapocoolers can obtain more performance - but for that extra few percent of performance, you sacrifice considerable power consumption for peltiers and vapochill units - a few extra hundred watts may not seem much - just wait until the power bill comes if the system runs 24/7.

In my honest opinion, the added noise for radiator cooling, complexity of peltiers and vapochills (condensation, etc.) and cost isn't quite worth the end result. True, I am not getting the maximum I can squeeze of the CPU (2700 out of a posible 2860) but at only 8W of power for the pump - I can surely live with that.

Don't get me wrong - I have nothing against other cooling methods whatsoever. Its cool people are trying other things. But in the end - its the cost/performance ratio that really matters.

To be able to run 2700MHz @ 2.016 vcore with only $35 equipment on top of the waterblocks is quite hard to beat

[aszyd]

I'd love to see how much power my room consumes compared to the others in this house, especially if I decide to throw a TEC on my CPU, lol. The figures might be interesting.

Since you are using tap water then there really is no problem with the refilling, I figured you were using distilled. That can be a pain, least for me. I would constantly have to go buy more which would take more time and more money (fuel+water).

A cooling goal for me is to get things as cold as possible taking up as little space as possible. Since vapor is so expensive, and chillers are large, I have to resort to TECs to accomplish my goal. I'd be in heaven if I could fit a water cooled dual TEC setup in a normal sized case.

Kate Beckinsale is a sexy *****

[PaintPro21]

do you have any anti corosive stuff in that water (like water wetter) ?

[heatwave]

Nope - I wouldn't want to either since the water evaporates, so will the toxic volatiles along with it. I don't plan on getting high anytime soon

The evaporative system works since I know one guy in Oz that has used similar systems for over 2 years without problems.

[reject]

where you live? i wonder what would happen on a sticky summer day with 90% humidity, the sys just wouldnt work.

[heatwave]

I'm on the gold coast, QLD.

At the moment, its been raining for the past 2 days - which means 100% humidity.

My temps have been the same as when it was dry.

Can't say anything about summer though, it hasn't got that hot as of yet.

[deathBOB]

Does it increase the humidity in your room?

[heatwave]

I should think so.

[reject]

i want to try this if i can get a 6800 block.

[heatwave]

www.snt-systems.com - ask for Dan

He's got lots of neat watercooling stuff at good prices to boot

[DaveX]

very neat, not something i would do since i lug my comp to LAN's and i'm too lazy to keep on refilling but it's very ingenious

so even at 100% humidity, you get the same temps

EDIT: *wtf it says i'm running stock, BLASPHEMY I SAY!*

[heatwave]

Well, refilling every 2 days isn't a big deal. I mean, everyone takes showers every day It'll take no more than 5 minutes of your time and its tap water.

If you do lan, just install 2 quick connects so you can disconnect the hose and from the reservoir contraption to the computer. A quick blow is all that's required to remove all water inside - seal the ends and off you go. Another 5 minutes of extra work. I mean, you don't go LANing every day

A very small price to pay for complete silence, high performance and affordability.

Yeah, the humidity thing I don't understand either. There's been periods where it rained for 2-3 days, almost all the time and heavily overcast. The temperatures stayed the same.

The only thing affecting the temperature is the ambient air temperature, the colder it is, the lower it is reported in MBM 5.

[Kalivar]

I thought of going evaporative.... but the thing that made me go with a closed system.... (and the other major drawback) is that you can't put this in your computer. With a closed system you can still have just one unit... you can't beat it. Also, how much would 30L of water monthly cost you?? This would offset the lowered power costs at least a little... but (i would think) still not as much $/month as an increased pwr bill...