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Scratch Build – In Progress The Mineral Oil PC - 3/24/2011 - More leaks :(

Discussion in 'Project Logs' started by legoman666, 29 Jan 2009.

  1. Shaj

    Shaj New Member

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  2. DeadP1xels

    DeadP1xels Music Enthusiast

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    Great stuff! congratz
     
  3. pimonserry

    pimonserry sounds like a party.

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    Congratulations :lol:
     
  4. JULO

    JULO New Member

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    This rig is absolutely amazing :D
    but when I look at it I see your room full in oil, the carpet, floor :duh:
    If I were you, I'd put it in a basin or something, you know, just in case ;)
     
  5. barry99705

    barry99705 sudo rm -Rf /

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    Wouldn't using a pump to direct oil to the hot spots work better than fans that aren't really designed to move oil?
     
  6. allogator

    allogator Oil Bath

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    While accurate about pumps, fans are just way more fun to watch pushing the oil around.

    Especially when using a fan controller! :D
     
  7. SuicideNeil

    SuicideNeil New Member

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    That is one thing that has always concerned me- the fans were never designed to circulate fluid- the load on them must be crippling their speed. Some kind of aquarium pump/ powerhead would be much better suited for moving the oil around. Cable management and optical drive placement also need finalising too, unless I missed something :D

    Awesome project though, dont see people doing that every day..
     
  8. legoman666

    legoman666 Beat to fit, paint to match.

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    Thanks guys!

    Next on the list: The insulation between the mounting bracket and the graphics card on my 5850's is made out of PVC. It's becoming soft and the heatsinks aren't being held down as tightly as they should be causing high GPU temps. I need to replace them with wood.
     
  9. tomclancey

    tomclancey New Member

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    Wouldn't getting an fan with a very high CFM (~150+) alleviate the issue with them not being able to push the oil very well? Or is it a matter of torque, and the fans just don't have enough "umph" per se, to move the oil around?
     
  10. legoman666

    legoman666 Beat to fit, paint to match.

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    I have 3 of these: http://www.heatsinkfactory.com/delta-afb1212she-120mm-super-high-speed.html

    "120x120x38 mm, 151.85 CFM @ 3700 RPM, 53.0 dBA, 12.60 watts, 1.05 amps"

    They're quite powerful.
     
  11. tomclancey

    tomclancey New Member

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    I guess it's not CFM then.
     
  12. The boy 4rm oz

    The boy 4rm oz Project: Elegant-Li

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    If your worried about oil movement then you could always add another cheap pond pump to force the oil around.
     
  13. Gunther

    Gunther New Member

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    i know you've probably done all your going to with this build. And it might not make much of a difference for your application with the understanding that your oil intake/outlet temps are within 2 degrees of each other. But for someone else trying one of these builds. It may be advantageous for you to try using a waterblock on your gpu's/cpu and porting the cooled oil directly through them that way, leaving the outlet un-piped as it were into the open environment. Or possibly piping from the waterblock outlets into the bottom of the case to circulate more efficiently?
     
  14. legoman666

    legoman666 Beat to fit, paint to match.

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    I was having problems with high temps. I figured out the cause and I fixed it.

    [​IMG]
    The old shims that put tension on the GPU are PVC. PVC + oil = soft PVC. This caused the heatsink and core to only be loosely contacting.

    [​IMG]
    To fix this, I made wood replacements! Wood is excellent for use in oil.

    [​IMG]
    Here they are in place.

    [​IMG]
    And in action. I was getting temps as high as 130C last night. Now they're 50C. Win.

    I also had to replace the thermal paste, as it had mostly dissolved :eyebrow: I used a different thermal compound this time though. Hopefully it won't dissolve. But if worst comes to worst, replacing the thermal paste every month or so isn't too big of a deal.

    Until next time...
     
  15. Cheapskate

    Cheapskate Insane? or just stupid?

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    It's turning into a melt log.:hehe:
     
  16. p0Pe

    p0Pe gief cake?

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    How bad would the temps be with a 0.5 mm thermal pad? That wont dissolve would it:D
     
  17. The boy 4rm oz

    The boy 4rm oz Project: Elegant-Li

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    Nice solution and nice new temps :D.
     
  18. allogator

    allogator Oil Bath

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    I'mma hijack for a minute. I got my PC built! I'm not creative enough to blog about it but here's the completed project.

    [​IMG]

    I just used an old aquarium and built a lid and cabinet base for it and have it hooked up as a media PC. If anyone wants to check the other pics they are here.

    I can't wait to start having melting problems. >_<

    Also, my oil is amber. It actually looks pretty neat though you can't see the parts in it very well. I'm pondering mounting some white LEDs at the top to help light up the inside.
     
    Last edited: 15 Aug 2010
  19. Elledan

    Elledan New Member

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    That looks funky, allogator :) Funky cabinet too, BTW ;)
     
  20. legoman666

    legoman666 Beat to fit, paint to match.

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    Looks cool, is there radiator in the upper compartment? I don't see tubing though.
     

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