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  1. #1
    ROG Guru: Yellow Belt Array antoine52200 PC Specs
    antoine52200 PC Specs
    Laptop (Model)G751JT
    MotherboardASUS
    Processori7-4720HQ OC at 3.8Ghz
    Memory (part number)16Go 1600Mhz OC
    Graphics Card #1NVIDIA GTX 970M OC
    OS Win10 64bits
    antoine52200's Avatar
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    ASUS G751 Cooling Mod

    I've been thinking about modding myg751 to run cooler. I've done some research and decided to try something new.

    I never use my bluray/dvd player. So i'm gonna add 1 or 2 heat pipes to the CPU/GPU connected to it's own heat sink with a stock g751 fan where the dvd player should be.
    A friend can 3d print a custom vent door to make it as clean as possible.

    My question is: can i connect the new fan to the stock cpu fan? Will it have enough power for both fans?

    Thanks

  2. #2
    ROG Guru: Green Belt Array Dreamonic PC Specs
    Dreamonic PC Specs
    Laptop (Model)ASUS GX800VH-XS79K
    MotherboardASUS GX800VHK (Intel CM238/IDA154) w/Custom BIOS
    ProcessorIntel Core i7-7820HK @ 4.8Ghz (+150mV) FCBGA 1440
    Memory (part number)64GB (PC4-22400) @ 18-18-18-38-53 (76.D305G.D060B)
    Graphics Card #1NVIDIA GeForce GTX 1080 8GB (GP104) OC @ +200/+800 w/Custom VBIOS
    Graphics Card #2NVIDIA GeForce GTX 1080 8GB (GP104) OC @ +200/+800 w/Custom VBIOS
    MonitorASUS PG348Q 34" 3440x1440 @ 100Hz w/G-SYNC (mDP-to-DP)
    Storage #13x Samsung 512GB NVMe SSD RAID0 (S316NY0HA00959)
    CPU CoolerASUS GX800VHK Water Cooling Dock
    CaseASUS GX800VHK Chassis
    Power SupplyASUS 2x 330W Power Adapter (AC 100~240V, 50/60Hz, 16.9A/19.5V)
    Keyboard ASUS ROG Claymore
    Mouse ASUS ROG Spatha
    Headset ASUS STRIX 7.1 Gaming Headset
    Mouse Pad ASUS ROG Whetstone
    OS Windows 10 Pro x64 / Arch Linux w/KDE Plasma
    Network RouterAsus ROG Rapture GT-AX11000 + GT-AC5300
    Accessory #1 Kensington 4 Port USB 3.0 Hub (K33978WW)
    Dreamonic's Avatar
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    Not to deter you but the ODD enclosure is rather slim for all of that since the keyboard is literally touching it as it is. It would be an interesting mod to see though!

    If you see the Lenovo Y500 idea they used as a fan cooling solution in their proprietary ODD replacement option, you'll find how slim profile of a fan is required to do that INSIDE the chassis (ODD enclosure) and not just for the tray itself.

    Running 2 fans off 1 header can be done, fans will still operate the same but increased power through that fan header could potentially be an issue later down the road for your MB or even the fans. Most people just do the USB port mod for another fan but I can see you wanting to keep things as stock looking as possible (cleaner). The G751 fans should be 5v 300-500mA and IIRC, most fan headers can support 1A. You'd probably need JustinThyme thoughts though but I think you're safe to proceed so as long as you get another 5v 300-500mA fan for your secondary.

  3. #3
    ROG Guru: Yellow Belt Array antoine52200 PC Specs
    antoine52200 PC Specs
    Laptop (Model)G751JT
    MotherboardASUS
    Processori7-4720HQ OC at 3.8Ghz
    Memory (part number)16Go 1600Mhz OC
    Graphics Card #1NVIDIA GTX 970M OC
    OS Win10 64bits
    antoine52200's Avatar
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    Thanks for your reply man, i will look into it , and if i have to i will go usb.. There are some feets under the dvd player, and i have the tools to trim them it should give me just enough
    space to do it! The heat sink i'm using is a low profile, with 7mm heat pipes

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