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  1. #1
    ROG Enthusiast Array ravenomega PC Specs
    ravenomega PC Specs
    MotherboardASUS ROG MAXIMUS VIII GENE
    Processori7-6700K 4.0Ghz
    Memory (part number)G.SKILL Ripjaws V Series 32GB
    Graphics Card #1ROG STRIX 1070-O8G
    MonitorASUS VG248QE
    Storage #1SAMSUNG 850 PRO 128GB
    Storage #2SAMSUNG 850 EVO 500GB x2
    CPU CoolerCORSAIR Hydro Series H105
    CaseCorsair Carbide Series 240 Air (Black)
    Power SupplyEVGA SuperNOVA 750 G2
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    Water Pump Control Setting?

    Hey all. I noticed in the bios there's an option called "Water Pump Control" and I have my H105 connected to the "W_Pump". I had a question about what "Water Pump Control" be set to? The options that it gives me are "DC, PWM, and Disabled". By default it is on "Disabled" Should I change it or leave it?

    Specs:
    OS: Windows 10
    CPU: i7-6700K @4.2Ghz
    CPU Cooler: CORSAIR Hydro Series H105
    Motherboard: ASUS ROG MAXIMUS VIII GENE
    GFX Card: EVGA GeForce GTX 1070 SC GAMING ACX 3.0
    RAM: G.SKILL Ripjaws V Series 32GB
    PSU: EVGA SuperNOVA 750 G2
    Last edited by ravenomega; 09-26-2016 at 11:50 PM.

  2. #2
    ROG Enthusiast Array Eric_F PC Specs
    Eric_F PC Specs
    MotherboardMaximus VIII Hero
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    If the H105 uses a constant speed pump (I believe it does) then you can use either DC or PWM mode and check the Monitor screen in the BIOS to confirm the pump RPMs. If you don't see an RPM indication, switch between modes until you do. Don't worry, your CPU will be fine at idle while you tweak the settings.

    Just leave the water pump speed controls at 100% for a constant-speed pump design.
    Motherboard: Maximus VIII Hero
    Processor: I7 6700K - 4.9GHz OC
    CPU Cooler: Corsair H80i v2
    Memory: G.Skill DDR4-3000 16GB
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    Storage #1: 1TB Western Digital Black
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    Case: Antec Nine Hundred
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    OS: Windows 10 Pro

  3. #3
    ROG Enthusiast Array ravenomega PC Specs
    ravenomega PC Specs
    MotherboardASUS ROG MAXIMUS VIII GENE
    Processori7-6700K 4.0Ghz
    Memory (part number)G.SKILL Ripjaws V Series 32GB
    Graphics Card #1ROG STRIX 1070-O8G
    MonitorASUS VG248QE
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    CPU CoolerCORSAIR Hydro Series H105
    CaseCorsair Carbide Series 240 Air (Black)
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    Quote Originally Posted by Eric_F View Post
    If the H105 uses a constant speed pump (I believe it does) then you can use either DC or PWM mode and check the Monitor screen in the BIOS to confirm the pump RPMs. If you don't see an RPM indication, switch between modes until you do. Don't worry, your CPU will be fine at idle while you tweak the settings.

    Just leave the water pump speed controls at 100% for a constant-speed pump design.
    Well, that's the thing. I know i can use DC or PWM but which should I be using? I've tried it on all modes even disabled and they all give RPM's.

  4. #4
    ROG Guru: Brown Belt Array NemesisChild PC Specs
    NemesisChild PC Specs
    MotherboardASUS Maximus X Hero (WI-FI AC)
    ProcessorIntel i7 8700K
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    I run my H90 pump on this header with it at default (disabled) in the bios.

    Runs perfectly fine. You actually don't want the pump to run at variable speeds.
    However, like mentioned above, I believe these closed loop water pumps are designed to run at a constant speed anyways.
    Intel i7 8700K@ 5.2GHz (Delidded)
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  5. #5
    ROG Enthusiast Array ravenomega PC Specs
    ravenomega PC Specs
    MotherboardASUS ROG MAXIMUS VIII GENE
    Processori7-6700K 4.0Ghz
    Memory (part number)G.SKILL Ripjaws V Series 32GB
    Graphics Card #1ROG STRIX 1070-O8G
    MonitorASUS VG248QE
    Storage #1SAMSUNG 850 PRO 128GB
    Storage #2SAMSUNG 850 EVO 500GB x2
    CPU CoolerCORSAIR Hydro Series H105
    CaseCorsair Carbide Series 240 Air (Black)
    Power SupplyEVGA SuperNOVA 750 G2
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    Alright, I'll keep it at disabled then. Thank you both!

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