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  1. #1
    ROG Member Array evan326 PC Specs
    evan326 PC Specs
    MotherboardASUS ROG Strix Z370-E
    ProcessorIntel i7 8700k@5GHz
    Memory (part number)32GB G.SKILL F4-3000C15D-16GTZR
    Graphics Card #1MSI GTX 1070 Gaming X
    MonitorAsus 28"
    Storage #1970 evo m2 250GB
    CPU CoolerCoolerMaster ML240R AIO
    CaseCoolermaster MC500M
    Power SupplySeasonic Prime 850 Gold
    OS Windows 10

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    Sep 2018
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    USB 3 speeds very slow on strix z370-e

    Hello, I'm having some trouble with the speeds on my usb 3 transfers. Initially the transfer will start at about 80MB/s then it plummets down to less than 10MB/s. This is if I'm transferring to my 5400rpm drive, or my fast nvme m.2 drive. I've tried uninstalling the driver, with no fix.
    I'm on windows 10 with latest updates. I understand advertised speeds are almost never achieved, but 10mb speeds is ridiculous.

  2. #2
    ROG Guru: Grand Master Array HiVizMan's Avatar
    Join Date
    Dec 2011
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    The USB drive you have is it USB 3 or USB 2? I was sold a flash drive that claimed it was USB3 and never got close to what I was expecting, took it back and it turned out to be USB2 not USB3.
    To help us help you - please provide as much information about your system and the problem as possible.

  3. #3
    Administrator Array Silent Scone@ASUS's Avatar
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    Mar 2016
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    Would need to know what the external device is (make and model, pen or HDD etc).

  4. #4
    ROG Member Array evan326 PC Specs
    evan326 PC Specs
    MotherboardASUS ROG Strix Z370-E
    ProcessorIntel i7 8700k@5GHz
    Memory (part number)32GB G.SKILL F4-3000C15D-16GTZR
    Graphics Card #1MSI GTX 1070 Gaming X
    MonitorAsus 28"
    Storage #1970 evo m2 250GB
    CPU CoolerCoolerMaster ML240R AIO
    CaseCoolermaster MC500M
    Power SupplySeasonic Prime 850 Gold
    OS Windows 10

    Join Date
    Sep 2018
    Reputation
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    Posts
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    It is applying to anything I'm transferring via usb3 The main thing I'm using is a transcend usb3.0 card reader on a sandisk extreme microsd. I use the card for my action camera. I've had speeds hovering around 90MB/s moving 15gb+ videos from this drive in the past. I'm not sure what's changed. I've checked the power options and everything.

  5. #5
    Banned Array JustinThyme PC Specs
    JustinThyme PC Specs
    Laptop (Model)G752VY-DH72
    MotherboardRampage VI Extreme
    ProcessorI9 9940X
    Memory (part number)64GB DDR4 8x8 Corsair Dominator Platinum 3800 MHz @ C17
    Graphics Card #1ASUS Strix 2080Ti O11G @ 2.1GHz
    Graphics Card #2ASUS Strix 2080Ti O11G @ 2.1Ghz
    Graphics Card #3ROG Nvlink
    Graphics Card #4Have to feed animals
    Sound CardExternal Audioengine D1 24 bit 192kbps DAC
    MonitorASUS PG348Q @ 100Hz
    Storage #1Intel 905P 480GB U2 flavor
    Storage #2Samsung 850 EVO 1TB X2 in RAID 0, 960 PRO 1TB DIMM.2_1
    CPU CoolerHeatKiller IV PRO and VRM blocks ,Dual D5 PWM serial, 2X 480, 1X 360 RADS
    CasePhanteks Enthoo Elite 8X LL120 PWM, 3X LL140 PWM, 12 SP120 PWM 1x AF140 PWM
    Power SupplyCorsair AX 1500i
    Keyboard ASUS Claymore
    Mouse ASUS Spatha, Logitech MX Master
    Headset Sennheiser HD 700
    Mouse Pad ASUS ROG Sheath
    Headset/Speakers Audioengine A5+ with SVS SB-1000 Sub
    OS Win10 Pro 1809
    Network RouterNetGear NightHawk X10
    Accessory #1 NetGear Prosafe 10GBe Switch
    Accessory #2 Qnap TVS-682 NAS modded with I7 CPU

    Join Date
    Nov 2013
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    Have you changed your BCLCK from 100Mhz?

  6. #6
    ROG Member Array evan326 PC Specs
    evan326 PC Specs
    MotherboardASUS ROG Strix Z370-E
    ProcessorIntel i7 8700k@5GHz
    Memory (part number)32GB G.SKILL F4-3000C15D-16GTZR
    Graphics Card #1MSI GTX 1070 Gaming X
    MonitorAsus 28"
    Storage #1970 evo m2 250GB
    CPU CoolerCoolerMaster ML240R AIO
    CaseCoolermaster MC500M
    Power SupplySeasonic Prime 850 Gold
    OS Windows 10

    Join Date
    Sep 2018
    Reputation
    10
    Posts
    5

    I have playing around, but it's at 100 and has been for a while.

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