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  1. #1
    ROG Guru: Yellow Belt Array Zammin PC Specs
    Zammin PC Specs
    MotherboardASUS ROG Maximus XI Formula
    ProcessorIntel 9900K (Conductonaut Applied)
    Memory (part number)G Skill 3200Mhz Trident Z RGB 32GB 3200Mhz CL16
    Graphics Card #1RTX 2080Ti FE
    MonitorAcer Predator XB271HU 165Hz
    Storage #1Samsung 970 EVO 2TB M.2 NVME SSD
    Storage #2Samsung 860 EVO 1TB SSD
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    Power SupplyCorsair RM1000i
    Keyboard Corsair K95 Platinum RGB
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    Slow boot times on NVME boot drive after switching to Z370 Maximus X Hero

    Hi everyone,

    Before anyone starts asking, if you need my full system specs they are in the drop down menu under my name.

    I have recently upgraded from my old 4790k system on a Gigabyte Z97X-Gaming 7 motherboard to a 8700k system on an ASUS Z370 Maximus X Hero motherboard. I have re-used the Intel 600P M.2 boot drive from my old system however I have formatted it and done a clean reinstall of Windows 10 pro after building the new system. Both systems have fast boot disabled in the BIOS and in windows.

    On my old system I used to see boot times (after POST) of less than 10 seconds, even though the M.2 boot drive was running in SATA mode. On my new system the M.2 boot drive has been running in PCIE x4 mode (NVME) since the first startup and i usually see boot times of over 30 seconds (after POST).

    The times are being measured from the point at which POST ends to the point where you reach the login screen.

    I can see that in AIDA 64 the SSD is recognised as NVME.

    Does anyone have any idea why my boot times are much slower when in theory they should be faster on the new system with PCIE mode? I have another system that is using the same type of Intel 600P SSD but on a Gigabyte Z270 with a 7600k, fast boot disabled, PCIE mode, and it reaches the login screen in under 5 seconds after post.

    If you need any more information please ask.

    Thank you.

  2. #2
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    I had this issue initially as well. Same basic system, except I have a Samsung 960 Evo M.2 as the boot drive.

    Do you know if your boot partition is MBR or GPT?

    You can check by:

    Right click start button>disk management

    Then LEFT click on the part where it describes your boot drive: DISK #, BASIC, Online
    Then Right click this and hit properties

    Click the Volumes tab, and look at the partition style. If it says "GUID Partition Table (GPT)" then you are ok, but if it says "Master Boot Record (MBR)" then that might be the issue.

    That's the problem I had, and after converting to GPT, I was able to disable Compatibility Mode CMS in the BIOS and enable UEFI booting first.

    I think you can convert easily if you have one of the last few Windows 10 updates (might be Fall creators update) .

    Should be able to right click the start button>command prompt (administrator)

    and then type: mbr2gpt.exe /convert /fullos

    it should convert your mbr boot partition to GPT. then reboot to BIOS and disable CMS and have it enable UEFI booting.

    Hope this helps.

  3. #3
    ROG Guru: Yellow Belt Array Zammin PC Specs
    Zammin PC Specs
    MotherboardASUS ROG Maximus XI Formula
    ProcessorIntel 9900K (Conductonaut Applied)
    Memory (part number)G Skill 3200Mhz Trident Z RGB 32GB 3200Mhz CL16
    Graphics Card #1RTX 2080Ti FE
    MonitorAcer Predator XB271HU 165Hz
    Storage #1Samsung 970 EVO 2TB M.2 NVME SSD
    Storage #2Samsung 860 EVO 1TB SSD
    CPU CoolerEKWB Velocity RGB
    CaseLian Li PC-011 Dynamic
    Power SupplyCorsair RM1000i
    Keyboard Corsair K95 Platinum RGB
    Mouse Steel Series Rival 600
    Headset Astro A50 (Gen 2)
    Mouse Pad ASUS ROG Scabbard
    Headset/Speakers JBL LSR305 Mk II
    OS Windows 10 Pro 64bit
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    Quote Originally Posted by S4vant View Post
    I had this issue initially as well. Same basic system, except I have a Samsung 960 Evo M.2 as the boot drive.

    Do you know if your boot partition is MBR or GPT?

    You can check by:

    Right click start button>disk management

    Then LEFT click on the part where it describes your boot drive: DISK #, BASIC, Online
    Then Right click this and hit properties

    Click the Volumes tab, and look at the partition style. If it says "GUID Partition Table (GPT)" then you are ok, but if it says "Master Boot Record (MBR)" then that might be the issue.

    That's the problem I had, and after converting to GPT, I was able to disable Compatibility Mode CMS in the BIOS and enable UEFI booting first.

    I think you can convert easily if you have one of the last few Windows 10 updates (might be Fall creators update) .

    Should be able to right click the start button>command prompt (administrator)

    and then type: mbr2gpt.exe /convert /fullos

    it should convert your mbr boot partition to GPT. then reboot to BIOS and disable CMS and have it enable UEFI booting.

    Hope this helps.
    Hey, thanks for the advice.

    I checked and my boot partition is set to GPT. I went into the BIOS and disabled CSM and enabled Windows UEFI Mode under the Secure Boot section. Upon exiting the BIOS and resetting, there was still about 30 seconds between POST and the login screen, however i then shut down the computer and started it again twice and both times I got boot times of around 9 seconds. Not as good as my other Z270/7600k system which still boots in about half that time, but much better than before. I'll see if it continues to hold those boot speeds over the next couple days. Thanks again!

  4. #4
    ROG Guru: Yellow Belt Array Zammin PC Specs
    Zammin PC Specs
    MotherboardASUS ROG Maximus XI Formula
    ProcessorIntel 9900K (Conductonaut Applied)
    Memory (part number)G Skill 3200Mhz Trident Z RGB 32GB 3200Mhz CL16
    Graphics Card #1RTX 2080Ti FE
    MonitorAcer Predator XB271HU 165Hz
    Storage #1Samsung 970 EVO 2TB M.2 NVME SSD
    Storage #2Samsung 860 EVO 1TB SSD
    CPU CoolerEKWB Velocity RGB
    CaseLian Li PC-011 Dynamic
    Power SupplyCorsair RM1000i
    Keyboard Corsair K95 Platinum RGB
    Mouse Steel Series Rival 600
    Headset Astro A50 (Gen 2)
    Mouse Pad ASUS ROG Scabbard
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    Just booted up again and got 20 seconds boot time. Seems to vary. Still better than 30+ but it seems excessive for an NVME drive in PCIE x4 mode..

    To be clear, when I say "boot time" I'm referring to the time spent displaying the windows spinning circle thing only.

  5. #5
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    Quote Originally Posted by Zammin View Post
    Just booted up again and got 20 seconds boot time. Seems to vary. Still better than 30+ but it seems excessive for an NVME drive in PCIE x4 mode..

    To be clear, when I say "boot time" I'm referring to the time spent displaying the windows spinning circle thing only.
    Yep, that does seem longer than normal. I just timed mine 3 times and after it posts its averaging 8-10 seconds from spinny circle to log-in/spalsh screen.

  6. #6
    ROG Guru: Yellow Belt Array Zammin PC Specs
    Zammin PC Specs
    MotherboardASUS ROG Maximus XI Formula
    ProcessorIntel 9900K (Conductonaut Applied)
    Memory (part number)G Skill 3200Mhz Trident Z RGB 32GB 3200Mhz CL16
    Graphics Card #1RTX 2080Ti FE
    MonitorAcer Predator XB271HU 165Hz
    Storage #1Samsung 970 EVO 2TB M.2 NVME SSD
    Storage #2Samsung 860 EVO 1TB SSD
    CPU CoolerEKWB Velocity RGB
    CaseLian Li PC-011 Dynamic
    Power SupplyCorsair RM1000i
    Keyboard Corsair K95 Platinum RGB
    Mouse Steel Series Rival 600
    Headset Astro A50 (Gen 2)
    Mouse Pad ASUS ROG Scabbard
    Headset/Speakers JBL LSR305 Mk II
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    Yeah it's still varying between 10 and 20 seconds generally. Too slow for NVME. Does anyone have any other ideas?

  7. #7
    ROG Guru: Orange Belt Array R5Eandme PC Specs
    R5Eandme PC Specs
    MotherboardRampage V Extreme/U3.1
    Processori7-5930K
    Memory (part number)Corsair Vengeance LPX CMK64GX4M8A2400C14
    Graphics Card #1MSI Geforce GTX 980Ti
    Sound CardAsus Essence STX II
    MonitorAcer B286HK 4K UHD
    Storage #1Samsung 960 Pro 1TB NVMe
    Storage #2Samsung 850 Pro 1TB SSD
    CPU CoolerNoctua NH-D15S
    CaseCooler Master HAF 932
    Power SupplyThermaltake TPG-1200M-F 1200W
    Keyboard Corsair K70 Cherry MX Brown
    Mouse Asus Sica
    Mouse Pad "And God said ... <Maxwell's equations> ... and there was light."
    OS Win 10 x64 Pro
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    Quote Originally Posted by Zammin View Post
    Yeah it's still varying between 10 and 20 seconds generally. Too slow for NVME. Does anyone have any other ideas?
    Only ideas I have are (1) see if your NVME drive is sharing bandwidth with any other PCIE device. The manual describes bandwidth sharing among PCIE slots, sometimes they even share bandwidth with SATA ports. and (2) is the NVME driver up to date? Hope you get it solved.

  8. #8
    ROG Guru: Yellow Belt Array Zammin PC Specs
    Zammin PC Specs
    MotherboardASUS ROG Maximus XI Formula
    ProcessorIntel 9900K (Conductonaut Applied)
    Memory (part number)G Skill 3200Mhz Trident Z RGB 32GB 3200Mhz CL16
    Graphics Card #1RTX 2080Ti FE
    MonitorAcer Predator XB271HU 165Hz
    Storage #1Samsung 970 EVO 2TB M.2 NVME SSD
    Storage #2Samsung 860 EVO 1TB SSD
    CPU CoolerEKWB Velocity RGB
    CaseLian Li PC-011 Dynamic
    Power SupplyCorsair RM1000i
    Keyboard Corsair K95 Platinum RGB
    Mouse Steel Series Rival 600
    Headset Astro A50 (Gen 2)
    Mouse Pad ASUS ROG Scabbard
    Headset/Speakers JBL LSR305 Mk II
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    Quote Originally Posted by R5Eandme View Post
    Only ideas I have are (1) see if your NVME drive is sharing bandwidth with any other PCIE device. The manual describes bandwidth sharing among PCIE slots, sometimes they even share bandwidth with SATA ports. and (2) is the NVME driver up to date? Hope you get it solved.
    Hey thanks for chiming in.

    I have checked the manual and I'm 100% sure it is not sharing bandwidth with any other device. I know what you mean though since I had this issue on my old system when I installed the M.2 drive and it disabled 2 SATA ports since it was sharing bandwidth.

    In regards to the driver, you don't mean Intel Rapid Storage Technology by any chance? I have not installed that because I was under the impression it was only required for RAID setups. Please correct if I'm wrong though.

  9. #9
    ROG Member Array marius4313 PC Specs
    marius4313 PC Specs
    Motherboardmaximus x hero wifi
    Processori78700k
    Memory (part number)CMR16GX4M2C3600C18W
    Graphics Card #1Strix-gtx980-dc2oc-4gd5
    MonitorLg tv
    Storage #1CORSAIR 120 GB Force MP500 M. 2 2280 PCI Express 3.0 x4
    Storage #22x corsair force gs 128gb
    CPU Coolercorsair h100i
    Casecorsair carbide spec03
    Power Supplycorsair gs 700
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    OS Windows 10x64

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    Hello Zammin.Extreme tweaker-dram timing control-mrc fast boot-enable-f10save.

  10. #10
    ROG Guru: Yellow Belt Array Zammin PC Specs
    Zammin PC Specs
    MotherboardASUS ROG Maximus XI Formula
    ProcessorIntel 9900K (Conductonaut Applied)
    Memory (part number)G Skill 3200Mhz Trident Z RGB 32GB 3200Mhz CL16
    Graphics Card #1RTX 2080Ti FE
    MonitorAcer Predator XB271HU 165Hz
    Storage #1Samsung 970 EVO 2TB M.2 NVME SSD
    Storage #2Samsung 860 EVO 1TB SSD
    CPU CoolerEKWB Velocity RGB
    CaseLian Li PC-011 Dynamic
    Power SupplyCorsair RM1000i
    Keyboard Corsair K95 Platinum RGB
    Mouse Steel Series Rival 600
    Headset Astro A50 (Gen 2)
    Mouse Pad ASUS ROG Scabbard
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    Quote Originally Posted by marius4313 View Post
    Hello Zammin.Extreme tweaker-dram timing control-mrc fast boot-enable-f10save.
    I tried this just now and although it booted in 10 seconds windows bugged out when trying to login and wouldn't display the login screen, only the background. By default this feature was set to "Auto".

    Are you able to elaborate on what this feature does? I did a bit of a search but I don't entirely understand. Something about memory training?

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