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  1. #1
    ROG Junior Member Array
    Join Date
    Oct 2018

    Fans setup advice

    Hey guys, total noob here =p

    So I finally finished building my first rig, but am very unsure about the performance of my fans setup. Here are the specs:

    i7 8700k @ 5Ghz
    Asus Strix 1080 ti
    16gb Gskill TridentZ
    Corsair H150i Pro 360mm
    Asus Maximus X Formula
    Corsair MX750
    Case: Phanteks Evolv X

    What I did was mount the 360mm radiator in the front as intake, replacing the 2x140mm stock fans and moving them to the top as exhausts. So now I have 3x120mm Corsair ML fans sitting behind a radiator as intake, and 3x140mm as exhaust. I feel that this might be highly inefficient, creating negative pressure, which is a nightmare in my room, as it has carpet =(

    Also, I have plugged the H150i pro in the CPU_FAN header, but am able to control the via iCUE. The exhaust fans are plugged in the CPU_OPT at the moment.

    As I said before, I'm a first timer... So, the question is: how do you manage to get a good airflow in this case with the 360mm radiator (positive pressure preferably)? Is it just through custom fan curves controlling the intake/exhaust, or is there any smarter way for this setup?

    Any advice is deeply appreciated. Thanks heaps!!

  2. #2
    New ROGer Array videodj PC Specs
    videodj PC Specs
    MotherboardAsus Maximus X Hero
    ProcessorIntel i7 8700k @ 4.7Ghz
    Memory (part number)32GB (2x16GB) Corsair DDR4 Vengeance RGB Pro, PC4-24000 (3000)
    Graphics Card #1Asus ROG Strix RX VEGA 64 OC edition 8GB HBM2
    Sound CardSound Blaster Zx
    MonitorAcer XF270HUA 27" IPS, Acer Nitro VG271UP 27" IPS
    Storage #1Samsung Evo 970 Plus 500Gb
    Storage #2Samsung Evo 970 1Tb
    CPU CoolerCorsair Hydro H115i PRO RGB
    CaseCorsair Graphite 780T White
    Power Supply850W Corsair RM850i PSU
    Keyboard Corsair Strafe RGB MK.2
    Mouse Corsair M65 Pro RGB, Logitech Performance MX Mouse (Darkfield)
    Headset Arctis Pro Wireless (White)
    Mouse Pad Corsair MM800 RGB
    Headset/Speakers Logitech Z906 5.1 Speakers
    OS Windows 10 Pro 64bit
    Network RouterNetgear NightHawk
    Accessory #1 Corsair Commander Pro
    Accessory #2 Corsair Lighting Node Pro RGB
    Accessory #3 Gigabyte WB1733D-I 1733Mbps PCI Express WiFi Adapter
    videodj's Avatar
    Join Date
    Sep 2018

    You'll need to work out the cfm of your fans, to get positive pressure you'll need to have a higher intake cfm. My current setup is 2 fromt 140mm intakes, plus a 120mm at the bottom. Then a 140mm exhaust at the rear and 2 140mm at the top exhausting my H115i Pro.

    I debated putting the rad at the front, but didn't want any heat from the rad pusing warm air onto my Vega 64.

    For the cooler, mines plugged into the cpu header and can control the fans fine with iCue, on my Maximus X Hero. Can you see the cooler in iCue? Are you able to change the pump speed?

    The link below is a small spreadsheet that will calculate the cfm. just enter the fan cfm and number of fans. The speed % is a just an extra. In my setup you can see that my intake cfm is higher, creating positive pressure.
    Last edited by videodj; 11-06-2018 at 11:11 PM.

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