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  1. #1
    ROG Member Array hogwell PC Specs
    hogwell PC Specs
    MotherboardTUF Gaming Pro
    ProcessorIntel i7-8700K
    Storage #1Samsung 850 EVO SSD
    Storage #23tb hdd
    OS Windows 10 Pro

    Join Date
    Feb 2018
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    Exclamation Activating SATA RAID mode without reinstalling Windows

    I have a Z370 motherboard (TUF Gaming Pro) which is currently set up with Windows 10 Pro on a single Samsung 850 EVO and with two 3TB HDD's.
    The SATA mode is configured as AHCI in the BIOS.

    Now, I would like to Mirror (RAID1) the two 3TB HDD's and leave the SSD as-is on drive C: to boot from.

    However, when I enable RST on the SATA controller (Switch from AHCI to RAID) in the BIOS, the system will not boot.
    So, I downloaded the Intel RST software for Windows 10 and installed it. However, it will still not boot unless I return the SATA to AHCI mode first..

    Is there any way to activate the Intel RST driver at boot time without reinstalling Windows 10 completely from scratch so I can run the SATA controller in RAID mode in order to set up a mirrored config on my data HDD's?

    Thanks for any help or advice from those who have been down this road before.

  2. #2
    ROG Guru: Yellow Belt Array Deepcuts PC Specs
    Deepcuts PC Specs
    MotherboardAsus Maximus X HERO BIOS 1901
    ProcessorIntel i7 8700K @ 4.7Ghz 1.215V
    Memory (part number)CMR32GX4M4C3466C16 @ 3200Mhz 1.360V
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    Network RouterMikrotik

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    The tip for W8 works in W10
    From: http://www.overclock.net/forum/20-ha...tallation.html

    Change to RAID mode from AHCI mode and vice versa:
    If currently installed, uninstall your RAID or AHCI SATA driver (for intel, intel rapid storage technology)
    Basically open msconfig -> boot tab -> check safe boot -> restart
    Go into UEFI/BIOS and set SATA mode to which ever one you want
    Boot up into windows safe mode
    Open msconfig again -> under the main menu tab (general) click the normal startup circle - > restart
    Your system should boot into windows fine and you can install your AHCI or RAID driver.




  3. #3
    ROG Member Array hogwell PC Specs
    hogwell PC Specs
    MotherboardTUF Gaming Pro
    ProcessorIntel i7-8700K
    Storage #1Samsung 850 EVO SSD
    Storage #23tb hdd
    OS Windows 10 Pro

    Join Date
    Feb 2018
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    Thanks.... I will try that.

    I had found the old post you referenced about using msconfig this way, but wasn't confident it would be that simple or would work on Windows 10.

    I am wondering if using the Windows 10 Disk Management mirroring (in AHCI mode) would be a better option to mirror the data drive...

  4. #4
    ROG Member Array hogwell PC Specs
    hogwell PC Specs
    MotherboardTUF Gaming Pro
    ProcessorIntel i7-8700K
    Storage #1Samsung 850 EVO SSD
    Storage #23tb hdd
    OS Windows 10 Pro

    Join Date
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    This is an interesting analysis of RST vs Windows RAID techniques:
    https://foxdeploy.com/2015/10/30/win...nce-smackdown/

    Based on this, it looks like Windows RAID1 has the same performance as Intel RST hardware on the ASUS motherboards.

  5. #5
    ROG Guru: Yellow Belt Array Deepcuts PC Specs
    Deepcuts PC Specs
    MotherboardAsus Maximus X HERO BIOS 1901
    ProcessorIntel i7 8700K @ 4.7Ghz 1.215V
    Memory (part number)CMR32GX4M4C3466C16 @ 3200Mhz 1.360V
    Graphics Card #1Asus Strix GTX 1080Ti OC 11GB
    Sound CardCreative Omni 5.1 USB
    MonitorDell 24' S2417DG
    Storage #1Samsung EVO 960 nvme 500 GB
    Storage #2Seagate NAS 8TBx2
    CPU CoolerNZXT Kraken X62
    CaseFractal Design Define R5 Black
    Power SupplyCorsair AXi760
    Keyboard Razer DeathStalker Chroma
    Mouse Razer Abyssus
    OS Windows 10
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    Since Windows 7, I have used software RAID exclusively and I R happy with it, performance wise.
    Too much of a hassle with Intel RAID for no extra benefit. I actually lost data because of Intel RAID. Never because of Windows software RAID.

  6. #6
    ROG Member Array hogwell PC Specs
    hogwell PC Specs
    MotherboardTUF Gaming Pro
    ProcessorIntel i7-8700K
    Storage #1Samsung 850 EVO SSD
    Storage #23tb hdd
    OS Windows 10 Pro

    Join Date
    Feb 2018
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    I'm experimenting with the Windows RAID mirroring.

    So far, so good.

    Except... Synching (sic) the 3TB took hours.

    Then I updated my drivers and BIOS to 606, the resynching was triggered again!

    A word to the wise... update your BIOS BEFORE setting up RAID.
    A word to the wiser... read the forum about the BIOS update, which installs the sluggish Intel Microcode for Spectre.
    I probably should have left my old BIOS in place, at least until ASUS can include the latest, slightly better Intel microcode release (84).

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