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Hot!KOOLANCE EXC-800 and a -85C lab freezer

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wwxww
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2019/05/24 13:56:01 (permalink)
I want to purchase the ECX-800 chiller to use for benching. I am thinking that the chiller alone would not give the results I am looking for. Condensation will happen quickly where I live given the dew points and temps and I doubt I would see much difference in clocks at those temps. I was looking up walk in freezers trying to get an idea or two of how I could run the chiller at max low. Would using a lab freezer at -30 to -85C with the chiller work for getting negative GPU temps? I know the limitations of using a freezer for pc cooling. The chiller and pc would be running 2-4hrs a day and I think it would remove most all of the heat. Any ideas on this and how to get the GPU to sub-zeros?
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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 14:16:43 (permalink)
    Maybe I get to play with mine Next Week Ending.
    But a Chiller is not the same as Sub-Zero Benchmarking.
     
    -85°C -121°F That is Really Sub-Zero
    "Any ideas on this and how to get the GPU to sub-zeros?" LN2.
    https://xdevs.com/guide/2080ti_kpe/#xoccool
    https://kingpincooling.com/collections/extreme-pc-cooling/products/tek-9-fat
    https://forums.evga.com/EVGA-OC-Lab-f109.aspx 
    post edited by bcavnaugh - 2019/05/24 14:25:15


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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 14:34:06 (permalink)
    They are in stock finally and I almost pulled the trigger last night. Looking at TiN's chart for the KP, I believe that I need to get near 0C for this card. I am not specifically looking for -30 but was wondering what could I expect GPU temps to be under load with the chiller at max vs 10C and would a really cold freezer allow me not to worry about over cycling it using a chiller. Would it even make a difference vs chiller alone? Searching for 2250 stable.
     
     
    edit: Yes, that would do it.
    post edited by wwxww - 2019/05/24 14:39:45
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    Cool GTX
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 14:46:27 (permalink)
    It would it depend on the freezer ?  The BTU dump from the chiller & PC needs to be factored in
     
    Cheaper than a walk-in freezer ? 

    Construct a small dedicated room or space in an existing area - Not on an outside wall.  Spray foam for Max R-value on All 6 sides & use a Ductless A/C unit
     
    Even if you go this route  DIY low cost sub-zero chiller for benchmarking
     
    The Cold room will have a much lower dew point 

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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 14:47:32 (permalink)
    Then the Race Is On
    Well as soon as we get our EVGA Hydro Copper Waterblock for EVGA GeForce RTX 2080 Ti K|NGP|N, 400-HC-1589-B1 Installed.
    I am going to test run the Chiller on my GTX 1080 Ti K|NGP|N SLI setup and then on my RTX 2080 Ti FTW3 HC Cards First.
    Temperature options: liquid set-point (1 to 50°C), external thermocouple set-point (1 to 149°C), liquid and ambient delta-T (-50 to 50°C),
    external thermocouple and ambient delta-T (-50 to 50°C); toggle °C/°F https://koolance.com/exc-800-portable-800W-recirculating-chiller
    Manual - manual_exc-800_d100eng.pdf
    post edited by bcavnaugh - 2019/05/24 14:50:37


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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 15:05:35 (permalink)
    It's on.
     
     
     
    edit: It's not on... until I figure out what all those things mean in the description and this.....Koolance will be closed May 27th for Memorial Day. Orders placed after 12PM Pacific on Friday, May 24th will be processed on Tuesday, May 28th.
    I assume yours will be in by Thursday.
    post edited by wwxww - 2019/05/24 15:09:24
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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 15:13:03 (permalink)
    Cool GTX

    Construct a small dedicated room or space in an existing area - Not on an outside wall.  Spray foam for Max R-value on All 6 sides & use a Ductless A/C unit
     
     
    The Cold room will have a much lower dew point 


    Would I be able to override the thermostat without the compressor freezing up with the ductless ac? I know they get really cold. 
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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 15:19:39 (permalink)
    wwxww
    It's on.
     
    edit: It's not on... until I figure out what all those things mean in the description and this.....Koolance will be closed May 27th for Memorial Day. Orders placed after 12PM Pacific on Friday, May 24th will be processed on Tuesday, May 28th.
    I assume yours will be in by Thursday.

    Mine just Shipped: Your order has shipped. It's fedex tracking number is:
    Scheduled delivery: Thursday  5/30/2019 by end of day


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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 15:30:12 (permalink)
    Ohh yeah. I figured being they stocked them last night. I screwed around today reading about freezers.
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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 15:38:45 (permalink)
    wwxww
    Ohh yeah. I figured being they stocked them last night. I screwed around today reading about freezers.

    Some do say that the EXC-800 Portable 800W is not worth using.


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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 16:10:01 (permalink)
    What about using a subzero chiller?
    I saw the video posted on Youtube with that guy using the EXC-800 and also a pc cooler, whatever that was, and his 4 cards were still in the 40's.
    What is the lowest temp that I can recirculate through the lines?
     
     
    Worth? If it was 250USD, would it then be worth it? It doesn,t require rads or pumps.
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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 16:50:51 (permalink)
    wwxww
    What about using a subzero chiller?
    I saw the video posted on Youtube with that guy using the EXC-800 and also a pc cooler, whatever that was, and his 4 cards were still in the 40's.
    What is the lowest temp that I can recirculate through the lines?
     
    Worth? If it was 250USD, would it then be worth it? It doesn,t require rads or pumps.

    See EVGA OC Lab Lots of stuff here.
    But with EXC-800 no you do not use radiators and the Pump is in the EXC-800 Unit. 


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    808sting
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 17:00:20 (permalink)
    There was a guy on xtremecooling board that made custom phase change units.  It was the same time frame when I was using the Asetek Vaporchill.  LDcooling has their cpu phase change, but didn't see anything for gpu.  Years back, I do recall seeing GPU adapter for phase change.  It'll run <40c at idle, at least mine did.  Asetek included the pot housing that included a heater.  The MB backplate had neoprene with a heating element, too.  I used electronic conformal spray to coat the MB contacts.  Dielectric grease on the cpu side.  Now, everyone just uses vasaline.  My system ran for days straight without problems.  Some things work well under extreme cold, other parts don't like it.  Not sure how effective sticking the entire unit in freezer will work.  Only limiting factor is money and time.  Labs typically uses -40 & -80 freezers, but they are $$$$.

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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 17:23:38 (permalink)
    I can source a -40C freezer for under 900 open box. I don't see much for GPU's either in all the DIY stuff. I see chillers that operate in the -5 to -35C range. I just figured why mess around with making a chill box when I could try a chiller that removes the heat and a really cold freezer to handle the ambient. The chiller would be outside the freezer. I'd modify and reseal it. Using a -35 chiller , I could only operate it within the freezer or deal with the mess and risks. I'd rather pay than make something this time. Something easy and effective.
     
     
    Oh...I see your point...fans and stuff at -40 working...yeah more thought
    post edited by wwxww - 2019/05/24 17:26:30
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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 19:33:03 (permalink)
    Going to take down my X299 FTW K MB CPU and Block it all out and put my KP card in with the HC Block and see just how far I can go with it.
    View System
     



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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 20:35:45 (permalink)
    For mock up or to run? You have a way to hold the tubes in place or you gonna fab a bracket?
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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/24 21:58:55 (permalink)
    To Run All The Way, Yes. Most likely Velcro® Brand Cable Ties.
    The Tubes are cover with Armaflex 1/2 in. x 6 ft. Rubber Self-Seal Pipe Wrap Insulation

    https://www.homedepot.com/p/Armaflex-1-2-in-x-6-ft-Rubber-Self-Seal-Pipe-Wrap-Insulation-HST05812/100550644
     
    post edited by bcavnaugh - 2019/05/24 22:11:54


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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/25 13:50:00 (permalink)
    https://www.youtube.com/watch?v=BBHRHLbYilo
     
    New Multi Use Kegerator as shown at the end of the Video.
     
    Works
    https://www.youtube.com/watch?v=XKatTmOI6DY
     
    From 10 years ago
    https://www.youtube.com/watch?v=r7pqc26TWAg
     
    Simple Box
    https://www.youtube.com/watch?v=NL58MtoUVGE
     
    Now I know what that cooler was made for
    https://www.youtube.com/watch?v=awm77ImQozw
    post edited by bcavnaugh - 2019/05/25 21:01:12


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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/25 14:23:02 (permalink)
    Now for the Real Thing

     
    Reviewing
    https://www.youtube.com/watch?v=4d0B0Dli-1g
     
    http://www.ldcooling.com/shop/14-phase-change
    post edited by bcavnaugh - 2019/05/25 21:01:29


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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/25 20:22:26 (permalink)
    bcavnaugh
    Now for the Real Thing

     




    Yes That's the dude I was talking about.     I thought that he had the EXC hooked up to the GC's. Nope. Dummy.
     
    Great links. Wrapping my head around accessories.
     
    post edited by wwxww - 2019/05/25 20:28:50
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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/25 20:25:47 (permalink)
    The Dude has 2 or 3 Videos now, I know I watched 2 of them.


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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/25 20:37:40 (permalink)
    I would have had that HiFi looking chiller on the pc and EXC on the GPU's. I think he would have seen better GPU temp. Or for the kinda cash into that system, whats another 800? Right....right...?!?
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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/25 20:53:40 (permalink)


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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/29 10:01:10 (permalink)
    I bought this chiller on ebay yesterday. I have no expectations for performance gains. It has no warranty or anything. 1700 + shipping new and the KPE WB for 300 seemed too much after I factored in all I spent on this thing.
    Anybody know about which CPU WB's I should be considering and do I purchase 90* fitting and straight fitting. Also, do I purchase the tubing from the same place as the WB or do I purchase tubing anywhere? Fittings choice is appreciated too. Thanks
     
     
    https://www.ebay.com/itm/Koolance-EXC-800-Portable-800W-Recirculating-Liquid-Chiller-PC-Water-Cooling-NEW/223515604713?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/29 10:26:10 (permalink)
    Let's hope yours is not DOA like mine was.


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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/29 10:41:00 (permalink)
    Yeah, I know. It had a weak moment and had regrets immediately after. The drop from 1200 to 750 got me. Paying the 1700 with AMEX would have given me 2 years of warranty.
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    808sting
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/29 15:22:31 (permalink)
    Koolance said they had a bad batch and sent them all back.  AMEX covers used equipment?
     
    I've been looking at the Alphacool XT45 420 V.2.  It has more surface area than a 480 and I like the design.  Then I had an idea.  I'm considering the EXC again, but need to vett the operations.  I could route the EXC output into the 420 and use that as a makeshift coolant temp regulator.  It would provide cooler ambient air intake for the case, while balancing off any excessively cold coolant.  I'd like to the run liquid temps at 20-23C.  Compressor may cycle on less frequently.  Unsure how the system maintains precise coolant temp without reheat when there is dynamic heat loads from the cpu/gpu.  This would occur during office productivity, web browsing, or system at idle.  Assuming it works using a traditional design, as temps rises, it cycles.  The exc-800 larger tank capacity should help.
     
    Thoughts?

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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/29 15:47:07 (permalink)
    You are really not suppose to use Radiators with EXC Chillers.
    Maybe you can play with this> VLX-450 Inline 450W Chiller Subassembly $999.99 Link

    post edited by bcavnaugh - 2019/05/29 15:51:34


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    wwxww
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/29 15:58:27 (permalink)
    808sting
    Koolance said they had a bad batch and sent them all back.  AMEX covers used equipment?
     


    I would have the two year warranty buying the Koolance new with the AMEX. Instead I bought a new unopened box from an ebay member.
    Ummm...any Idea what batch that was sent back???
     
    I have no knowledge of how this thing works. I have a general idea but none about the thermal control and speed of the flow. I am hoping for the good grace of bcav and his extensive knowledge of everything mechanical to lend a hand.
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    bcavnaugh
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    Re: KOOLANCE EXC-800 and a -85C lab freezer 2019/05/29 16:12:58 (permalink)
    Mine was part of the bad units; Lot Number 151871 & Serial Number EC2018020076
     
    I am starting off at “LIQAMB” to start with and moving as needed. Maybe Sunday or Monday I will start.
    With these settings, it’s possible to set the liquid temperature below the environmental air temperature.
    If liquid temperatures reach the ambient dew point, condensation (water droplets) can form on tubing and cold plates connected to the chiller. Unless condensation is prepared for, it is recommended to keep the chiller on “LIQAMB” with a minimum value of 0°C (which keeps liquid at ambient).
     
    Remember to let is sit upright for 24 Hours before turning it on.
    post edited by bcavnaugh - 2019/05/29 16:19:58


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