SS to Chill Water Indirectly - thoughts and questions

[Jor3lBR]

Hi guys,

I recently stumbled across stummerwinter idea to cool water with a Single Stage unit:



I would like to hear some feedback on this, what coolant to use? Do I need to adapt anything else? Insulate tubing? I have 90% of the parts laying around so no money will be involved or will be a downer.

The idea is to use the single stage attached to a CPU block (thermalright xwb-1), then in the loop going to another CPU block (Fusion V2)/Vga block(DD 4870x2)/ Res and 2x120 rad ad pump. I'm also planing to use this setup to cool North Bridge temps on benching sessions.

Please suggestions like "why not transform the SS into a Chiller" will be counterproductive

[Buckeye]

Hi guys,

I recently stumbled across stummerwinter idea to cool water with a Single Stage unit:



I would like to hear some feedback on this, what coolant to use? Do I need to adapt anything else? Insulate tubing? I have 90% of the parts laying around so no money will be involved or will be a downer.

The idea is to use the single stage attached to a CPU block (thermalright xwb-1), then in the loop going to another CPU block (Fusion V2)/Vga block(DD 4870x2)/ Res and 2x120 rad ad pump. I'm also planing to use this setup to cool North Bridge temps on benching sessions.

Please suggestions like "why not transform the SS into a Chiller" will be counterproductive

I am not 100% sure but I think it will take a fair amount of time to get down to temps with that kind of setup, and might not hold that great of a load ?

[Jor3lBR]

I am not 100% sure but I think it will take a fair amount of time to get down to temps with that kind of setup, and might not hold that great of a load ?

Hey Buck,

Humm I was thinking something around 10oC and holding a greater load because it would be sharing that load with rads, res and blocks?

[[XC] gomeler]

If you do this you will not want to use a radiator or reservoir. The single-stage will be able to pull the liquid down sub-zero, depends on the load the single-stage is tuned for regarding final temps and such.

[Jor3lBR]

If you do this you will not want to use a radiator or reservoir. The single-stage will be able to pull the liquid down sub-zero, depends on the load the single-stage is tuned for regarding final temps and such.

Is there a way to hold the subzero temps above 5oC?

Which coolant should I use?

[Ozzfest05]

Is there a way to hold the subzero temps above 5oC?

Which coolant should I use?

I dont understand subzero at 5C but you can use windshield fluid works great.

[Jor3lBR]

I dont understand subzero at 5C but you can use windshield fluid works great.

Well they are subzero on the evap head but after they leave the evap to the block and then the loop I guess it will get higher.

[lowfat]

Let us know how well it does if you decide to do this. I think I may try this w/ my single stage so I can easily use it on a GPU, once ruffus finishes my cascade.

[Jor3lBR]

Let us know how well it does if you decide to do this. I think I may try this w/ my single stage so I can easily use it on a GPU, once ruffus finishes my cascade.

I will test it out next week and let you all know the results.

Should be pretty nice to freeze North Bridges and GPU's for benching I guess

[lowfat]

Still waiting

I would try it out tomorrow if I had a couple of metal water blocks to use. I think I still have an old Eheim 1250 pump somewhere that should be able to handle the temperature.

[Jor3lBR]

Still waiting

I would try it out tomorrow if I had a couple of metal water blocks to use. I think I still have an old Eheim 1250 pump somewhere that should be able to handle the temperature.

Hey lowfat, sorry we had an unusual series of snow here in Northern Arizona and we are without mail/ups etc since Monday! We had 67 to 92" of snow in 7 days non-stop!

My water blocks needed for the tests are still 'on hold' due to the weather

[Buckeye]

Yeah we had some bad wind and rain here in the Valley also, my pool was a mess

On I-5 going over the Grapevine they closed it off because it looked like the top of the Sierras at Donor Pass.

http://cbs2.com/video/?id=125256

LOL.
http://www.youtube.com/watch?v=QhIMtkYX1ew

So your going 65-70mph and those trucks on the right maybe 25mph and they pull right out in front of you. That short video is where I start at when I gas up before going over at very fast ride to 4,000 feet. Coming back down is just as bad as you pick up speed real fast. Allways some fool pulling a camper trailer and tucks just beaming down the raod.

It gets like this a lot also, which is actually not to bad. In the valley you can hardly see past the front of your car at times. Sometimes you cant see the end of your drive way
http://www.youtube.com/watch?v=eW72o...eature=related

[lowfat]

What blocks are you using? I have an old Fuzion V1 that I could use for one end but I don't know how well the Delrin will handle the cold.

[Jor3lBR]

What blocks are you using? I have an old Fuzion V1 that I could use for one end but I don't know how well the Delrin will handle the cold.

The one that goes on the Phase Change will be a Thermalright XWB-1 it's solid to hold the cold temps:

[sirheck]

Are you talking about butting the evap up to an extra waterblock in the loop?

If so i did something like that awhile back.
After covering the radiators with cardboard and shutting
the fans down i could get just below ambient temps.

[Jor3lBR]

Are you talking about butting the evap up to an extra waterblock in the loop?

If so i did something like that awhile back.
After covering the radiators with cardboard and shutting
the fans down i could get just below ambient temps.

Bingo that's it!

Do you think that the Phase Change could hold a higher load after putting it in the loop?

You didn't need to insulate anything did you?
Why did you need to shut the FANs and cover the rad?

[lowfat]

Are you talking about butting the evap up to an extra waterblock in the loop?

If so i did something like that awhile back.
After covering the radiators with cardboard and shutting
the fans down i could get just below ambient temps.

Are these load temps? You are also cooling a video card + NB + a CPU which is quite a bit. I would just be cooling just a single GPU more than likely.

[sirheck]

It was a quick thing. just to see how it would work.
I didnt use any paste between the evap and water block,also i only zip tied them together.
I used Nano fluid as it is suppose to be good to like -20c
With the rads running normal with fans on them it didnt make one bit of difference.
Only after turning the fans off and covering the rads with cardboard did i see
a temp drop.

I was able to get right around ambient temps, a little below at idle.
This was with the NB a Q66 at 3.6ghz and an ATI 4770 GPU
in the loop.
If ya took the rads completely out it would probably work better.

Also with this set up i would run the computer THEN turn on the Phase.
Running the phase first and then turning on the computer resulted in (once the flow
of coolant got going) the seal from the MCW60 on the 4770 GPU squirting coolant onto the mobo.
^^^^this i tried several times^^^^

Each time if the phase was fired up first the coolant got cold enough at the evap/waterblock
that when it hit the GPU block it would result in a leak, also IIRC i heard crackling from
the MCW60 connected to the evap.

I never had to mess with the leaking GPU waterblock, just shut it down dried everything
then always fired the computer up before firing the phase up.

If i was to try it again i would take the radiators out of the loop.
Fire the computer up, then the phase.

[sirheck]

Are these load temps? You are also cooling a video card + NB + a CPU which is quite a bit. I would just be cooling just a single GPU more than likely.

Yeah these were idle temps (the just below ambient)

SORRY: dont think i posted what i was actually running.
It was a Q66 CPU i was running @3.6 for this mutant phase/water test.
Ran it up to 4.4 on the phase the regular way.

[sirheck]

Yeah with a single heatload like a GPU or CPU and no radiators or even a single 120
it would probably work great.

HHM??? Im in the middle of a new build, may have to try this again on a
single component.

[Jor3lBR]

Yes as Gomeler said it is better with just the Cryo + Pump and Res.

I was thinking about adding the rad to heat up the water a bit to get over 0oC, but I guess it's just better to leave it out.

The plan is to cool a vid card or a north bridge around 1oC to 10oC and bench the heck out of it!

[lesstutrey]

i'll be doing this shortly as well. sdumper should have my 2nd SS on the way sometime this week. I have a enzotech sapphire cpu block that i think will be highly ideal.

Here is my only thought about the radiator and reservoir, because i thought the same thing when i saw stummer's post, isn't that just killing performance and i thought about what stummer also said. His lines quickly iced up when there was no load applied. Cut out the radiator and reservoir and your lines may freeze even faster. Don't use an acrylic res with washer fluid as it has alcohol in it and they don't mix well, plus washer fluid gets slushy pretty easily, isopropyl alcohol (the 91% variety, 70% would probably work but leaves a lot of water that might freeze) would be a better bet for fluid. Maybe acetone too.. but it's pretty rough on everything and i dunno how a pump would handle it.

[Jor3lBR]

I did a small test today and have a few things to say:

- If you use proper weather coolant like and -50F anti freeze you won't have any leak problems; (I used pure Artic ban water supply systems antifreeze);

- I turned the computer on when SS displayed -30oC;

- I found the preliminary results shameful could not even cool a stock C2D;

- Loop: Res - Pump - SStage - CPU - Res.

I will check the mounts and see what's wrong, I just think the water doesn't have enough time to cool when flowing thru the Single Stage (and that think was full of ice).

I guess adding the Rads is a better idea, I will try a loop very close to the Rad: Single Stage - Rad (so water in the rad would freeze again) - CPU - Res - Pump

[lesstutrey]

I did a small test today and have a few things to say:

- If you use proper weather coolant like and -50F anti freeze you won't have any leak problems; (I used pure Artic ban water supply systems antifreeze);

- I turned the computer on when SS displayed -30oC;

- I found the preliminary results shameful could not even cool a stock C2D;

- Loop: Res - Pump - SStage - CPU - Res.

I will check the mounts and see what's wrong, I just think the water doesn't have enough time to cool when flowing thru the Single Stage (and that think was full of ice).

I guess adding the Rads is a better idea, I will try a loop very close to the Rad: Single Stage - Rad (so water in the rad would freeze again) - CPU - Res - Pump

What kinda block do you have connected to the SS?

[Jor3lBR]

What kinda block do you have connected to the SS?

Look up ^ Post #14