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  1. #1
    ROG Member Array
    Join Date
    Jan 2016

    Unhappy Urgent Help on Booting from SSD Win 10 Asus Z170

    Before i go for fully clean install,want to try here for help because i cannot seem to solve it

    After i changed my Z68A Mobo CPU and Ram TO Skylake build Asus Z170-S TUF and i7 6700k,my SSD and HDD remained same,i plugged everything together and everything worked fine but after a little i noticed insane long BOOT UP times like 25 sec from 8 sec (old setup).
    I cannot BOOT from my SSD if i choose First SSD then Second HDD it says BOOTMGR. missing.If i Choose HDD first system boots.

    What i tried so far is AHCI mode (by default AHCI)
    Insert cable in different ports
    Any help is greatly appreciated

    Looking foward to your reply

  2. #2
    ROG Guru: Grand Master Array
    Join Date
    Oct 2012

    Memory training for DDR4 takes longer than conventional DDR3.

    In regards to optimizing the boot process for speed, you can try the recommendation from this user.
    Quote Originally Posted by d5aqoep View Post
    Things you have to do:
    1. Make GPT UEFI USB installer windows 10 disk using RUFUS 1.7
    2. Disable CSM in your BIOS settings.
    3. Boot Windows setup from the created USB drive by pressing F8 at ASUS ROG logo screen at the very beginning.
    4. Make sure your 950 is formatted to GPT style partition. If windows is not allowing you to install, delete any existing partitions on 950 PRO and let setup create partitions.
    5. After install, let Windows 10 finish indexing, updating, and sending all your private data to Microsoft
    6. Make sure you have fastboot enabled in BIOS as well as in power settings of Windows

    That's it.

    Shutdown and Start would be the fastest.

    Restarts would be slower but still better.

    It takes me 4 seconds from ASUS ROG logo to fully loaded OS. I don't even see those circling dots of Windows.

    Enjoy and do not complain ever of slow boot speeds. You are doing it wrong.

  3. #3
    ROG Guru: Green Belt Array Heini PC Specs
    Heini PC Specs
    MotherboardAsus SABERTOOTH Z170 MARK 1
    Memory (part number)G.SKILL TridentZ (2 x 16GB) F4-3000C14D
    Graphics Card #1Evga 2080Ti XC Ultra
    Sound CardAsus Essence STX II
    MonitorASUS MG279Q
    Storage #1Samsung 950 Pro 512GB
    CPU CoolerNoctua NH-D15
    CaseCooler Master HAF XB EVO
    Power SupplyEVGA SuperNOVA G3 1000W
    Keyboard Ducky Shine 6 (Brown Cherry MX)
    Mouse Secret (Ducky)
    Headset Sennheiser HD 580
    Mouse Pad EVGA TORQ
    Headset/Speakers Logitech Z906
    OS Win10 Pro 64
    Heini's Avatar
    Join Date
    Nov 2013

    If I understand correctly, you want to change from an 1155 board to a 1151 without reinstalling Windows?

  4. #4
    ROG Member Array
    Join Date
    Jan 2016


    Hey Thanks for answer

    Nope i can boot the system and play it fine (if i select HDD 2 first) what i want is BOOT from SSD for quicker boot up

    Even SSD have Win10 i cant boot from it,only from HDD

  5. #5
    iron man Array kkn's Avatar
    Join Date
    Aug 2011

    you have OS on hdd, thats the problem.
    you have to do a fresh instal.

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