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  1. #1
    ROG Enthusiast Array Stormwind81 PC Specs
    Stormwind81 PC Specs
    MotherboardROG X299 XE
    Memory (part number)Corsair Vengance 3200 4x8
    Graphics Card #1tba
    Storage #1Samsung EVO 960 1TB (M2)
    CPU CoolerEKWB Professional Kit
    CaseThermaltake View 71
    Power SupplyEVGA P2 Supersonic 750

    Join Date
    Jan 2018

    ROG Strix X299-XE Second M.2 Slot for Boot Performance?

    Hello Forum,
    so my MB has two M.2 slots. One is between the PCI-Express slots and underneath a cover and the other one is directly next to the SATA Ports.
    The one under the slot seemed to me to be the primary one and also suited better for installation cause safer and better to mount.
    Now I want to upgrade my rig and get another 1TB M.2 in the other slot, which is badly designed, cause it points away fron the MB and therefore you would stick the M.2 drive in it like an USB stick and it would be hanging in mid air so to speak, if you know what I mean. There should be a mount-help with but god knows if I still have that or if it even exists.
    My question is: Which one of the 2 slots is better for primary boot option?
    I want to have my main C: drive in the faster slot. Or is there no difference what so ever?
    Can I make an Raid 0 with the two slots?

  2. #2
    ROG Guru: Orange Belt Array G75rog PC Specs
    G75rog PC Specs
    MotherboardR VI Apex
    Memory (part number)64GB Gskill Trident Z
    Graphics Card #1AMD Radeon VII EKWB water block
    Graphics Card #2Waste of PCI lanes in NVME environment
    Sound CardStock
    MonitorLG 34" Ultra Wide3440x1440
    Storage #14ea 960 Pro 2TB, 2ea 970 Evo 2TB
    Storage #21ea 960 Pro 1 TB, 1ea 970 Pro 1TB
    CPU CoolerEKWB CPU, Swiftech Res/pump, 400mm Rad
    CaseThermaltake View 91
    Power SupplyNZXT Hale 90 1200W
    Keyboard Logitech G910
    Mouse Razer Ouroboros
    OS W10 64 1809, 1903, Ubuntu Linux
    Network RouterNetgear R9000 + 4ea R9000 AP's, 10 Gb Switch
    Accessory #1 Hyper M.2 X16 V2
    Accessory #2 10GB network via Intel 550 Nic
    Accessory #3 2 10GB Asustor NAS 7000 series

    Join Date
    Jan 2013

    Your downloadable User Manual has those answers. Ebay might even have an SSD mount if you have lost yours.

  3. #3
    ROG Member Array
    Join Date
    Mar 2022

    I put mine in the 2 slot and populated DIMM card. Read that it was the best performance to leave .1 empty, but I haven't tested that to confirm.

    Raid with these drives seems to not be worth the hassle, according to YouTube videos I've watched.

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