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  1. #1
    New ROGer Array MacDeth PC Specs
    MacDeth PC Specs
    MotherboardMaximus VIII Ranger
    ProcessorCore i7 6700K
    Memory (part number)16gb Corsair DDR4 3000mhz CMK16GX4M4B3000C15
    Graphics Card #1nVidia GTX 960
    Monitorx2 ASUS VN279 27in
    Storage #1Samsung M.2 NVMe MZVPV256
    Storage #2x2 Samsung 850 Pro RAID0
    CPU CoolerProlimatech Megahalems Black
    CaseFractal Designs R4 Blackout
    Power SupplyEVGA 1000wt
    Keyboard Coolermaster Quickfire Rapid-i Cherry MX
    Mouse Logitech G700s
    Headset Logitech G35
    Mouse Pad Perixx DX-2000
    OS Windows 10 Professional
    Network RouterAsus RT-N66U
    Accessory #1 Belkin N52TE

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    Oct 2015
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    Maximus Ranger VIII RAM OC Failure

    Howdy,

    I purchased this Corsair CMK16GX4M4B3000C15 16gb mem kit for my Ranger VIII, it was listed on ASUS's QVL list and can't get it working at 3000Mhz.
    I've tried the XMP profile and manually setting the timings and DRAM voltage but system won't POST until i restart again and get overclocking failed message.

    I can get the system to post if i run default DDR4 speed.

    Looks like a few other people are having issues OC'ing ram also, but i haven't found any solution's on the forum's yet.

    Anyone have any suggestions?

  2. #2
    New ROGer Array Ceiphied PC Specs
    Ceiphied PC Specs
    MotherboardAsus Maximus VIII Ranger
    ProcessorIntel i5 6600K
    Memory (part number)GSkill Ripjaws V 3000Mhz 16GB
    Storage #1SSD Samsung 850 EVO 500GB
    CPU CoolerCryorig R1 Universal
    CasePhanteks Enthoo Luxe
    Power SupplyEVGA SuperNOVA 750W G2
    OS Windows 10

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    Oct 2015
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    Hi,
    I don't know a definitive solution but like many people having problems with RAM OC the best I could do was lower the speed step by step and see which one was stable.
    In my case (GSkill 3000Mhz) it was 2933, no problems POSTing although I should say my system did post randomly at 3000Mhz (bios 0801).

    At least its better than leaving the default 2133 Mhz speed

  3. #3
    Moderator Array Nate152 PC Specs
    Nate152 PC Specs
    MotherboardROG Maximus IX Code
    Processori7-7700k 5.2GHz Delidded
    Memory (part number)16GB G.Skill Trident Z 4025MHz 17-17-17-39-2T
    Graphics Card #1Titan Xp - EKFC waterblock
    Graphics Card #2Titan Xp
    Sound CardROG SupremeFX 2015
    MonitorHP ZR30w
    Storage #1Toshiba OCZ VX500 256GB
    CPU CoolerSwiftech Apogee GTZ
    CaseThermaltake Armor+ VH6000
    Power SupplyEVGA Supernova 1600w Titanium
    Keyboard Cyberpower Skorpion K2
    Mouse Razer Basilisk
    Headset Sennheiser HD6XX / Modmic 5
    OS Windows 10 Home 64 bit
    Accessory #1 Asus optical drive
    Accessory #2 Koolance ERM-2K3U
    Nate152's Avatar
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    Try raising the vccio voltage to 1.15v and the cpu system agent voltage to 1.15v. (up to 1.25v if needed)

    Then try setting your ram to 3000Mhz, these settings can be found on the extreme tweaker tab in the bios.

  4. #4
    New ROGer Array MacDeth PC Specs
    MacDeth PC Specs
    MotherboardMaximus VIII Ranger
    ProcessorCore i7 6700K
    Memory (part number)16gb Corsair DDR4 3000mhz CMK16GX4M4B3000C15
    Graphics Card #1nVidia GTX 960
    Monitorx2 ASUS VN279 27in
    Storage #1Samsung M.2 NVMe MZVPV256
    Storage #2x2 Samsung 850 Pro RAID0
    CPU CoolerProlimatech Megahalems Black
    CaseFractal Designs R4 Blackout
    Power SupplyEVGA 1000wt
    Keyboard Coolermaster Quickfire Rapid-i Cherry MX
    Mouse Logitech G700s
    Headset Logitech G35
    Mouse Pad Perixx DX-2000
    OS Windows 10 Professional
    Network RouterAsus RT-N66U
    Accessory #1 Belkin N52TE

    Join Date
    Oct 2015
    Reputation
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    Thanks for the responses.

    I've already manually set the mem to 3000mhz, set the voltage and timings manually too, but i'll give the vccio and SA voltages a shot. \m/

  5. #5
    Moderator Array Nate152 PC Specs
    Nate152 PC Specs
    MotherboardROG Maximus IX Code
    Processori7-7700k 5.2GHz Delidded
    Memory (part number)16GB G.Skill Trident Z 4025MHz 17-17-17-39-2T
    Graphics Card #1Titan Xp - EKFC waterblock
    Graphics Card #2Titan Xp
    Sound CardROG SupremeFX 2015
    MonitorHP ZR30w
    Storage #1Toshiba OCZ VX500 256GB
    CPU CoolerSwiftech Apogee GTZ
    CaseThermaltake Armor+ VH6000
    Power SupplyEVGA Supernova 1600w Titanium
    Keyboard Cyberpower Skorpion K2
    Mouse Razer Basilisk
    Headset Sennheiser HD6XX / Modmic 5
    OS Windows 10 Home 64 bit
    Accessory #1 Asus optical drive
    Accessory #2 Koolance ERM-2K3U
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    Ok great, I feel confident this will get your ram stable.

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