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Thread: Tripple digit cascade

  1. #1
    Xtreme Owner Charles Wirth's Avatar
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    Tripple digit cascade

    Building it last week.
    http://fugger.netfirms.com/cas1.jpg

    Sealed up and turned off (digital meter reads -90c) pressure tested to 2k psi
    http://fugger.netfirms.com/cas2.jpg

    400w load
    http://fugger.netfirms.com/1077c.jpg

    #2 already being built.

    We skipped the second stage R410 and went straight to the suva-95

    I also picked up my cold head on ebay to complete my helium cryo setup.

    http://cgi.ebay.com/ws/eBayISAPI.dll...tem=2560891724

    Cryofridge conversion pictures comming soon.

    Americold 1/2HP R410 also comming soon, should be done by friday.
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  2. #2
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    Fugger- what kind of compressors are these, they look like low temp danfoss SCxx

  3. #3
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    Wow, great stuff. What did you pay for the SUVA-95? I only heard exorbitant prices on the stuff (>$100/kg)

  4. #4
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    yep great going fugger,now just get it on a chip.

  5. #5
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    A cpu isnt steel, its silicone that will crack sooner or later :\

  6. #6
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    ..... boys in Japan have proven that anything
    lower than -120C is futile. But I'd say anything
    in that temp rea is Hella cold.
    .... I spent a Fortune on Booze and Women.... the rest I just wasted.

    My Heatware

  7. #7
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    holy §§§§ -107 @ 400W load... now that's some real xtreme stuff there

    makes me ashamed of my stock Mach II

    *goes off to read more refrigeration books...

  8. #8
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    holy h311 -- very nice work.

    do you have 40 gallons of conformal coating, 60 lbs of di-electric grease and 6 inch thick neoprene on standby for the upcoming on-CPU test??
    Counting bodies like sheep to the rhythm of the war drums.
    go to sleep
    go to sleep
    go back to sleep.

    carpe noctem.

  9. #9
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    Very nice Fugger. I Hope it works out well for you..




    They will fall at his feet....... But eBay @ZZHOLE still ripped me off!

  10. #10
    Xtreme Owner Charles Wirth's Avatar
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    Danfoss SC12MLX w/start and run caps, pictured in the first pic.

    I got the bottle of suva for just under $100. that bottle is at 600psi. iirc the PT chart said 550psi at 30c. The compressor can reach ~70c

    Yes, its going on a P4 CPU for benchmarking.

    Its running right now, we did a few more power failure tests and will be putting a 1200Kva (100 Minute) UPS on the first stage as a failsafe if it loses power durring Comdex. It will cool the second stage to prevent it from blowing a seal or the blow plug.
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  11. #11
    Turbo
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    Wow -107 @ 400W Nice job Fugger and Reggie. :thumbsup:
    Whats the unloaded temps??

  12. #12
    Xtreme Owner Charles Wirth's Avatar
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    Here is the CPU

    Intel 9990XE @ 5.1Ghz
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  13. #13
    Freezer Racer
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    good job man.

    isnt that a little out of that meters acurate range? did you use the jumper in the back so it reads c and not f?

    get a better meter. that one only reads k type, and cannot be calibrated. it is only good to -30

    http://www.fieldpiece.com/clamp-meter.html
    Last edited by captaincascade; 10-30-2003 at 10:25 AM.
    If i was an animal Id be a freezer.

  14. #14
    Xtreme Owner Charles Wirth's Avatar
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    We did not expect the meter to go past -99

    Its not 100% accurate but it is good enough for goverment work.

    Its a new probe mounted on the evap
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  15. #15
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    It will cool the second stage to prevent it from blowing a seal or the blow plug.
    So when you power down this system you have to let R508 out ?

  16. #16
    Xtreme Owner Charles Wirth's Avatar
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    If we were to shut off both compressors with the 508B side very hot there is a very high chance it will blow the plug or a seal. Not sure if the shell and tube or the flex line is the weaker point.

    R507 compressor is plugged into battery backup and R508B is connected to non-backup power. Both are on the same switch. When power is cut one compressor is made to stay on.

    The shell and tube condensor will remain down at -40 ~-50 (max capacity) and keep the 508B compressed long enough for the compressor to cool down to a stable temp.

    I will get another pic with the UPS isntalled and the head frozen over. we seperated the hot plate and reconnected the power to the fan seen in pic 2 face up w/blade off. We stole the power for the hot plate to load test.

    We never let the 508B out, I only have 4 pounds left.
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  17. #17
    Freezer Racer
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    ok, is that f or c?
    If i was an animal Id be a freezer.

  18. #18
    Xtreme Owner Charles Wirth's Avatar
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    Everything done is in C

    The only time I use F is for the weather outside
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  19. #19
    Turbo
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    -107 C = -160 F
    -107 F = -77 C

    Either way its some serious cooling especially if its under a 400W load

  20. #20
    Xtreme Owner Charles Wirth's Avatar
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    Even of more interest is the mobo that came with my EE.

    EDITED: its a 82875PBZ

    just some stuff on it I have never seen before.

    mini SO-DIMM slot under the CPU retention

    white coil tower at the base of the DDR

    jumpers INT1 and INT2 50/60 and bottom 60
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  21. #21
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    pics of the board?

  22. #22
    Freezer Racer
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    b.s.

    r-95 wont get that cold, especially not with those little compressors. -95c is about the best you could do. please get a better thermometer.

    dont make me build a three stage.

    fluke 51's are nice and are like 150$
    If i was an animal Id be a freezer.

  23. #23
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    Originally posted by captaincascade
    b.s.

    r-95 wont get that cold, especially not with those little compressors. -95c is about the best you could do. please get a better thermometer.

    dont make me build a three stage.

    fluke 51's are nice and are like 150$
    you had to go and bust his bubble.....

    i wasnt going to say a word...

  24. #24
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    So what's the likely temp ?

  25. #25
    Xtreme Owner Charles Wirth's Avatar
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    I sense some fear, heh.

    The meter is all I got atm that goes past -50c so Ill leave it up to the PT chart -88c boiling at approx ~5 inches of vacuum.

    Ill conveniantly blame it on a bad algorythm after -30c so being off 10 degrees wouldnt surprise me. we were surprised to pass -99c to be honest. Unless I sporing for a new fluke or you let me borrow yours, its all I got.

    You didnt bust my bubble, my capacity is insane.

    Maybe I should put up a disclaimer of 5% margin of error. Better yet, how about I put up some nice scores and we call it even.

    You see what I am running
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