Page 3 of 3 FirstFirst 1 2 3
Results 21 to 29 of 29
  1. #21
    New ROGer Array fredepf PC Specs
    fredepf PC Specs
    MotherboardCrosshair VIII Hero
    ProcessorRyzen 9 3950X
    Memory (part number)CMW32GX4M4K3733C17
    Graphics Card #1Powercolor RX 5700XT Red Devil
    MonitorSamsung
    Storage #1Sabrent 1TB NVME PCIE 4
    CPU CoolerEK Custom WC
    CaseThermaltake P#
    Power SupplyCorsair RM850
    OS WIndows 10

    Join Date
    Mar 2020
    Reputation
    10
    Posts
    27

    test

    Quote Originally Posted by RedSector73 View Post
    Thank you for the information. From it, I see, a thing left that maybe a long shot or nothing as well, anyway your ram
    CMW32GX4M4K3733C17 is not on the QVL for memory for both Asus website for CH8 or AMD for Ryzen 3 series
    https://www.amd.com/en/products/ryze...-gen-amd-ryzen

    There are four modules, perhaps lets try 2 (in second and fourth slot from CPU) and see if this changes anything and if this does not work, let's try not running DOCP just default and see if this changes anything.

    If the above test fails to fix, then I would try borrowing another graphics card to see the issue is there, and
    from the information given, I'm all out of ideas if this does not resolve the issue or pinpoint the source for you.
    I do all the test and everthing is ok and it don't fix the problem.
    Thanks for your help

  2. #22
    ROG Guru: Yellow Belt Array
    Join Date
    Feb 2012
    Reputation
    37
    Posts
    125

    Hi fredepf,

    If your SSD NVMe Sabrent is on the M2_1 socket (Manual pag 1-2), it is sharing the 16 CPU PCIe’s lanes with your 5700XT, and the graphic card will operate at 8X, instead of 16X.

    Try to move it to M2_2 socket, the lower M2_2 socket and see if this correct the issue.

    Good luck.

  3. #23
    New ROGer Array RedSector73 PC Specs
    RedSector73 PC Specs
    Laptop (Model)FA506IU-AL130T x 2
    MotherboardROG CROSSHAIR VIII HERO (WI-FI)
    ProcessorAMD Ryzen 9 3900X 12-Core Processor
    Memory (part number)4 x G.SKILL F4-3800C14D-16GTZN 14-16-16-36 Samsung B-Die
    Graphics Card #1Gigabyte Aorus RTX 2080 Ti Xtreme WaterForce (GV-N208TAORUSX W-11GC)
    Sound CardArctis DAC
    MonitorAsus ROG Swift PG348Q
    Storage #1ADATA SX8200PNP 1TB
    Storage #22 x Samsung SSD 840 EVO 250GB
    CPU CoolerCoolermaster Liquid Pro Master 360
    CaseEVGA DG-87 Gunmetal Grey Gaming Case
    Power SupplyEVGA SuperNOVA G2 750W Gold Power
    Keyboard Corsair K95 RGB Platinum
    Mouse Corsair Gaming Sabre RGB Gaming Mouse
    Headset ARCTIS Pro Wireless
    Mouse Pad Cooler Master MP750 RGB Cloth Gaming Mouse Pad Extra Large
    OS Windows 10 64bit Pro
    Network RouterRT-AC87U

    Join Date
    Apr 2018
    Reputation
    40
    Posts
    720

    Quote Originally Posted by squawker View Post
    Hi fredepf,

    If your SSD NVMe Sabrent is on the M2_1 socket (Manual pag 1-2), it is sharing the 16 CPU PCIe’s lanes with your 5700XT, and the graphic card will operate at 8X, instead of 16X.

    Try to move it to M2_2 socket, the lower M2_2 socket and see if this correct the issue.

    Good luck.
    Might have wrong motherboard manual. CH8 - Chapter 1 Page 1-8

    Click image for larger version. 

Name:	pcie1.jpg 
Views:	0 
Size:	355.9 KB 
ID:	86227

    The lower M2 is controlled by x570 chipset and is slower. Also, as you can see there is no issue with x16 and using M2 in the top.
    Last edited by RedSector73; 09-07-2020 at 11:57 PM.

  4. #24
    ROG Guru: Yellow Belt Array
    Join Date
    Feb 2012
    Reputation
    37
    Posts
    125

    The AMD AM4 processors have 16 PCIe lanes at maximum and if the M2_1 socket has access to these lanes, the graphic card will operate at X8.
    So, my suggestion to change to M2_2 socket and with the graphic card in the PCIEX16_1 slot.

    Also the 570 chipset is PCIe 4.0 with plenty of lanes and i doubt if it will be slower with most of NVMe SSD’s (even the PCIe 4.0).

  5. #25
    New ROGer Array fredepf PC Specs
    fredepf PC Specs
    MotherboardCrosshair VIII Hero
    ProcessorRyzen 9 3950X
    Memory (part number)CMW32GX4M4K3733C17
    Graphics Card #1Powercolor RX 5700XT Red Devil
    MonitorSamsung
    Storage #1Sabrent 1TB NVME PCIE 4
    CPU CoolerEK Custom WC
    CaseThermaltake P#
    Power SupplyCorsair RM850
    OS WIndows 10

    Join Date
    Mar 2020
    Reputation
    10
    Posts
    27

    Quote Originally Posted by squawker View Post
    The AMD AM4 processors have 16 PCIe lanes at maximum and if the M2_1 socket has access to these lanes, the graphic card will operate at X8.
    So, my suggestion to change to M2_2 socket and with the graphic card in the PCIEX16_1 slot.

    Also the 570 chipset is PCIe 4.0 with plenty of lanes and i doubt if it will be slower with most of NVMe SSD’s (even the PCIe 4.0).
    The Ryzen 3950X have 24 PCIE Lanes . and X570 16 Lanes . even if i have 2 NVME SSD it's suppose to work at 16X

    I alerady try to change NVME to M2.2 and the Graphic card run at 8X this don't fix my problem
    I know this don't have effect on Perf but i want to find why my GFX only run at 8X .

    Thanks for your help

  6. #26
    ROG Guru: Yellow Belt Array
    Join Date
    Feb 2012
    Reputation
    37
    Posts
    125

    Yes the 3950X CPU has a total of 24 PCIe 4.0 lanes, of which 4 are used for the interconnect to the X570 chipset, leaving 20 lanes Gen 4.0 for other utilization (USB, LAN, etc).

    Only 16 lanes (PCIe 4.0) are intended for graphics cards that are connected as x16, so my remark.

    My setup is a Crosshair VIII Hero Wi-Fi also with a 3950X CPU, and i have a raid (2 x Optane 900P) with an Hyper M.2 X16 adapter on the PCIEX16_2 and my graphic card run at X8, like yours.

    So, my suggestion of changing the SSD for the M2_2 socket.

    But if you tried this without result, after all yours attempts, its a trick issue.
    Good luck.

  7. #27
    New ROGer Array fredepf PC Specs
    fredepf PC Specs
    MotherboardCrosshair VIII Hero
    ProcessorRyzen 9 3950X
    Memory (part number)CMW32GX4M4K3733C17
    Graphics Card #1Powercolor RX 5700XT Red Devil
    MonitorSamsung
    Storage #1Sabrent 1TB NVME PCIE 4
    CPU CoolerEK Custom WC
    CaseThermaltake P#
    Power SupplyCorsair RM850
    OS WIndows 10

    Join Date
    Mar 2020
    Reputation
    10
    Posts
    27

    Quote Originally Posted by squawker View Post
    Yes the 3950X CPU has a total of 24 PCIe 4.0 lanes, of which 4 are used for the interconnect to the X570 chipset, leaving 20 lanes Gen 4.0 for other utilization (USB, LAN, etc).

    Only 16 lanes (PCIe 4.0) are intended for graphics cards that are connected as x16, so my remark.

    My setup is a Crosshair VIII Hero Wi-Fi also with a 3950X CPU, and i have a raid (2 x Optane 900P) with an Hyper M.2 X16 adapter on the PCIEX16_2 and my graphic card run at X8, like yours.

    So, my suggestion of changing the SSD for the M2_2 socket.

    But if you tried this without result, after all yours attempts, its a trick issue.
    Good luck.
    Ok i Understand now.
    I will try another time to put NVME in M2.2 just for make sur .
    DO you know what usb Device can take PCIE Lanes ?
    I didnt know USB take PCIE Lanes.

    Thanks for your HElp i really appreciate

  8. #28
    New ROGer Array RedSector73 PC Specs
    RedSector73 PC Specs
    Laptop (Model)FA506IU-AL130T x 2
    MotherboardROG CROSSHAIR VIII HERO (WI-FI)
    ProcessorAMD Ryzen 9 3900X 12-Core Processor
    Memory (part number)4 x G.SKILL F4-3800C14D-16GTZN 14-16-16-36 Samsung B-Die
    Graphics Card #1Gigabyte Aorus RTX 2080 Ti Xtreme WaterForce (GV-N208TAORUSX W-11GC)
    Sound CardArctis DAC
    MonitorAsus ROG Swift PG348Q
    Storage #1ADATA SX8200PNP 1TB
    Storage #22 x Samsung SSD 840 EVO 250GB
    CPU CoolerCoolermaster Liquid Pro Master 360
    CaseEVGA DG-87 Gunmetal Grey Gaming Case
    Power SupplyEVGA SuperNOVA G2 750W Gold Power
    Keyboard Corsair K95 RGB Platinum
    Mouse Corsair Gaming Sabre RGB Gaming Mouse
    Headset ARCTIS Pro Wireless
    Mouse Pad Cooler Master MP750 RGB Cloth Gaming Mouse Pad Extra Large
    OS Windows 10 64bit Pro
    Network RouterRT-AC87U

    Join Date
    Apr 2018
    Reputation
    40
    Posts
    720

    Quote Originally Posted by squawker View Post
    Yes the 3950X CPU has a total of 24 PCIe 4.0 lanes, of which 4 are used for the interconnect to the X570 chipset, leaving 20 lanes Gen 4.0 for other utilization (USB, LAN, etc).
    Not technically correct again. USB, LAN, ETC do not effect or use the graphics lanes unless as a added riser device in the PCIe bus. USB don't use or share PCIe lanes with the graphics whatsoever. 4 of PCIe go to X570 chipset which runs LAN, USB and your etc.

    If you have only graphics card in PCIe than you should get x16. Having something else plugged in PCIe than it drops as per the previous attachment which uses graphics card as the example. M2 being the either slot, does not effect getting x16.

    Click image for larger version. 

Name:	AMD-X570-Chipset-Block-Diagram.jpg 
Views:	0 
Size:	187.6 KB 
ID:	86229
    Last edited by RedSector73; 09-08-2020 at 06:58 AM.

  9. #29
    New ROGer Array fredepf PC Specs
    fredepf PC Specs
    MotherboardCrosshair VIII Hero
    ProcessorRyzen 9 3950X
    Memory (part number)CMW32GX4M4K3733C17
    Graphics Card #1Powercolor RX 5700XT Red Devil
    MonitorSamsung
    Storage #1Sabrent 1TB NVME PCIE 4
    CPU CoolerEK Custom WC
    CaseThermaltake P#
    Power SupplyCorsair RM850
    OS WIndows 10

    Join Date
    Mar 2020
    Reputation
    10
    Posts
    27

    Rma

    RMA the board .
    I hope they will fix the issue .
    Thanks for your Help.

Page 3 of 3 FirstFirst 1 2 3

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •