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  1. #11
    ROG Guru: Diamond Belt Array Zka17's Avatar
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    Mar 2012
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    Thank you, JustiThyme - it is greatly appreciated!

    Yes, I know the literature about the flow thing... however I never experienced it on my systems... - but I start getting it now... it has to do with the radiator surface too...
    I guess, I just always had excess radiator estate...
    I was keeping my D5 varios at the 2nd speed because of noise considerations... then kept my coolant temp not more than 5C above the ambient... but again, with way bigger rads than you could buid in a case...

    I will certainly play around with the flow!

  2. #12
    ROG Enthusiast Array SexyTerrorisT PC Specs
    SexyTerrorisT PC Specs
    MotherboardCrosshair VI Hero
    Processor1800X
    Memory (part number)F4-3200C14Q-32GTZR
    Graphics Card #1EVGA GTX 1060 SC
    Monitor23' Acer 120 Hz GD245HQ
    Storage #1Samsung 1TB 960 Pro
    CPU CoolerEK-SUPREMACY EVO AMD, EK-CoolStream XE 360 ,EK-CoolStream CE 280 , EK-XTOP Revo Dual D5 PWM Serial
    Case750D airflow edition
    Power SupplySeasonic 850 Prime Titanium
    Keyboard Razer Lycosa
    Mouse Razer Lachessis 5600
    OS Windows 10

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    Apr 2017
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    Nice to see so much feedback in this thread.!

    Number one factor in cooling performance is radiator surface then fan speed then comes flow rate. Above a certain threshold pump speed gains are really small to barely measurable. The more parts you are cooling in the system the more this is going to be important.

    Ideally you'll want to have water move as fast as possible through the waterblocks and as slow as possible in the radiators. Heat water the less possible and cool it as much as possible. Running your radiators in parallel is a great way to achieve this but global flow rate does take a considerable hit this way.

    High flow rate in a system means parts getting cooled 2nd or 3rd will get water closer to ambient temp. Water should never rise above 40 C in any system. If it reaches 50C its time to shut down.

    Water temp should be as close as possible to ambient temp. Big delta between cpu temps and water temps means heat transfer is not good. Water calorific capacity wont change with flow rate. You'll want each water molecules to absorb as much as heat as possible as fast as possible and getting away of the heat source pronto!

    Copper has best heat conductivity but is usually plated with nickel to avoid tarnish. Avoid mixing metals especially copper and aluminum!!

    I think the heatpipes on the Crosshair's VRM with the aztec design look really nice too. VRM are already above spec and the cooling they have should probly be adequate for even pushing extreme voltages for LN2 cooling. I don't think i'll be killing my flow rate and voiding my warranty for just for cooling the VRMs a bit more.

    I'll get some pictures up when I test the system a week on air and add later on the watercooling parts. My ram is out of stock and delaying the whole build.

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