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  1. #1
    ROG Guru: White Belt Array XIIIIX PC Specs
    XIIIIX PC Specs
    MotherboardCrosshair VIII Formula
    Processor3900X
    Memory (part number)Gskill F4-3000C14Q-32GTZ 1T@3733 16-16-16-36-60
    Graphics Card #1GTX2080Ti
    Sound CardX7 LE
    MonitorBig enough
    Storage #1SAMSUNG MZVKW512
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    CPU CoolerH110
    CaseLevel 10
    Power SupplySeasonic 1050 Platinum
    Keyboard K70 Mk.2 SE
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    Mouse Pad Rog big one
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    ROG Crosshair VIII Formula - Bios set CL15@3600 goes CL16

    If i set in bios CL15 @ 3600 and up, it`s showing CL16 CPU-z and other software etc.
    Same goes if I reopen Bios @ next boot, and the values are loaded .
    If I set it again, no luck CL15 set --> CL16 result

    Anyone knows/has this problem?

    Have Samsung B-die dual sided 2x 16gB, which can do 1900 CL16 @ 1,425V uncore 1:1
    They also do 3466 CL14 and CL15.

    Best timings vs. speed so far:

    Geheugencontroller ,,,Type Dual Channel (128 bit)
    Aktieve modus ,,,Dual Channel (128 bit)

    Geheugeninstellingen
    CAS Latency (CL) 16T
    RAS To CAS Delay (tRCD) 15T
    RAS Precharge (tRP) 15T
    RAS Active Time (tRAS) 36T
    Row Cycle Time (tRC) 60T
    Row Refresh Cycle Time (tRFC) 312T, 2x Fine: 486T, 4x Fine: 299T
    Command Rate (CR) 1T
    RAS To RAS Delay (tRRD) Different Rank: 15T, Same Bank Group: 4T, Diff. Bank Group: 16T
    Write Recovery Time (tWR) 16T
    Read To Read Delay (tRTR) Different Rank: 4T, Different DIMM: 4T, Same Bank Group: 5T, Diff. Bank Group: 1T
    Read To Write Delay (tRTW) 12T
    Write To Read Delay (tWTR) 7T, Same Bank Group: 12T, Diff. Bank Group: 6T
    Write To Write Delay (tWTW) Different Rank: 6T, Different DIMM: 6T, Same Bank Group: 5T, Diff. Bank Group: 1T
    Read To Precharge Delay (tRTP) 12T
    Four Activate Window Delay (tFAW) 32T
    Write CAS Latency (tWCL) 14T
    Write RAS To CAS Delay (tRCDW) 15T
    Refresh Period (tREF) 14553T
    Idle Cycle Limit 8
    Dynamic Idle Cycle Counter Geactiveerd

  2. #2
    New ROGer Array bluestang PC Specs
    bluestang PC Specs
    MotherboardASUS ROG Crosshair VII Hero
    ProcessorRyzen 3900X
    Memory (part number)F4-3600C15D-16GTZ (2 kits)
    Graphics Card #1MSI Armor OC 1660ti
    Graphics Card #2MSI Armor OC 1660ti
    MonitorASUS VZ249H
    Storage #1Samsung 970 EVO 250GB NVMe
    Storage #22x WD Red 10TB (RAID1)
    CPU CoolerFractal Design Celcius S36
    CasePhanteks Enthoo Luxe TG
    Power SupplySeaSonic Focus Plus Platinum 850W
    Keyboard Logitech MK-710 Combo
    OS Windows 10 Pro
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    You can't do odd CAS timings like that on Ryzen. It's a bug. My C15 3600 kit will not do 15-15-15-35, but will do 16-15-15-35.

    So eventually I'm just going to try and get 3800 16-16-16-36 to work instead.

  3. #3
    ROG Guru: Blue Belt 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
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    Power SupplyEVGA SuperNOVA G2 750W Gold Power
    Keyboard Corsair K95 RGB Platinum
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    Off memory, to do odd CAS settings isnt hard or a bug, find the Gear Down Mode and disabled it (in the manually set timings)

    If this does not fix your issue, then post back and I'll refresh my memory / locate the correct setting to change however I'm fairly sure this is the issue fixed.
    Last edited by RedSector73; 03-10-2020 at 07:01 AM.

  4. #4
    ROG Guru: White Belt Array XIIIIX PC Specs
    XIIIIX PC Specs
    MotherboardCrosshair VIII Formula
    Processor3900X
    Memory (part number)Gskill F4-3000C14Q-32GTZ 1T@3733 16-16-16-36-60
    Graphics Card #1GTX2080Ti
    Sound CardX7 LE
    MonitorBig enough
    Storage #1SAMSUNG MZVKW512
    Storage #2SAMSUNG MZVKW1T0
    CPU CoolerH110
    CaseLevel 10
    Power SupplySeasonic 1050 Platinum
    Keyboard K70 Mk.2 SE
    Mouse M65 Elite SE
    Headset AKG
    Mouse Pad Rog big one
    Headset/Speakers Harman GLASS
    OS W10
    Network RouterRT-AX88U

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    Quote Originally Posted by RedSector73 View Post
    Off memory, to do odd CAS settings isnt hard or a bug, find the Gear Down Mode and disabled it (in the manually set timings)

    If this does not fix your issue, then post back and I'll refresh my memory / locate the correct setting to change however I'm fairly sure this is the issue fixed.
    It did the trick. C15 is running now @1800 and 1833. 1866 results in a safe boot.
    Had to up to 1,435V though for stability.

    Time to fine-tune and search the sweet spot.

  5. #5
    New ROGer Array bluestang PC Specs
    bluestang PC Specs
    MotherboardASUS ROG Crosshair VII Hero
    ProcessorRyzen 3900X
    Memory (part number)F4-3600C15D-16GTZ (2 kits)
    Graphics Card #1MSI Armor OC 1660ti
    Graphics Card #2MSI Armor OC 1660ti
    MonitorASUS VZ249H
    Storage #1Samsung 970 EVO 250GB NVMe
    Storage #22x WD Red 10TB (RAID1)
    CPU CoolerFractal Design Celcius S36
    CasePhanteks Enthoo Luxe TG
    Power SupplySeaSonic Focus Plus Platinum 850W
    Keyboard Logitech MK-710 Combo
    OS Windows 10 Pro
    Network RouterASUS RT-N66U

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    I tried disabling Gear Down Mode and never got it to work. Maybe upping the volts is the answer, but I didn't want to do that. I'll try it next time I'm tinkering with my system.

  6. #6
    ROG Guru: Blue Belt 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
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    Quote Originally Posted by XIIIIX View Post
    It did the trick. C15 is running now @1800 and 1833. 1866 results in a safe boot.
    Had to up to 1,435V though for stability.
    Time to fine-tune and search the sweet spot.
    Good to hear that did the trick OP.

    For me with a 3900x, 1800 (3600) is the sweet spot. I tested from DDR3200 to 4400 on samsung b-die before settling.

  7. #7
    ROG Guru: White Belt Array XIIIIX PC Specs
    XIIIIX PC Specs
    MotherboardCrosshair VIII Formula
    Processor3900X
    Memory (part number)Gskill F4-3000C14Q-32GTZ 1T@3733 16-16-16-36-60
    Graphics Card #1GTX2080Ti
    Sound CardX7 LE
    MonitorBig enough
    Storage #1SAMSUNG MZVKW512
    Storage #2SAMSUNG MZVKW1T0
    CPU CoolerH110
    CaseLevel 10
    Power SupplySeasonic 1050 Platinum
    Keyboard K70 Mk.2 SE
    Mouse M65 Elite SE
    Headset AKG
    Mouse Pad Rog big one
    Headset/Speakers Harman GLASS
    OS W10
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    Quote Originally Posted by RedSector73 View Post
    Good to hear that did the trick OP.

    For me with a 3900x, 1800 (3600) is the sweet spot. I tested from DDR3200 to 4400 on samsung b-die before settling.
    @1866 (3733) - Uncore 1:1 @1866 16-16-16-16-36 gives me highest stable clocks and bandwidth, so back to were i came from.
    C14 limits @ 3466
    C15 limits @ 3633 and lower max core speed ???(45,25 vs 46,75) ???

    Timings table:
    Geheugeninstellingen
    CAS Latency (CL) 16T
    RAS To CAS Delay (tRCD) 16T
    RAS Precharge (tRP) 16T
    RAS Active Time (tRAS) 36T
    Row Cycle Time (tRC) 60T
    Row Refresh Cycle Time (tRFC) 312T, 2x Fine: 486T, 4x Fine: 299T
    Command Rate (CR) 1T
    RAS To RAS Delay (tRRD) Different Rank: 16T, Same Bank Group: 4T, Diff. Bank Group: 16T
    Write Recovery Time (tWR) 16T
    Read To Read Delay (tRTR) Different Rank: 4T, Different DIMM: 4T, Same Bank Group: 5T, Diff. Bank Group: 1T
    Read To Write Delay (tRTW) 12T
    Write To Read Delay (tWTR) 7T, Same Bank Group: 12T, Diff. Bank Group: 6T
    Write To Write Delay (tWTW) Different Rank: 6T, Different DIMM: 6T, Same Bank Group: 5T, Diff. Bank Group: 1T
    Read To Precharge Delay (tRTP) 12T
    Four Activate Window Delay (tFAW) 32T
    Write CAS Latency (tWCL) 16T
    Write RAS To CAS Delay (tRCDW) 16T
    Refresh Period (tREF) 14553T
    Idle Cycle Limit 8
    Dynamic Idle Cycle Counter Geactiveerd

  8. #8
    ROG Guru: Blue Belt 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

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    try this, I use it on samsung b-die and find it stable 24/7
    (however you may have trouble as mine is single rank 8x2 not dual rank <-'assumption' 16x2 b-die sticks)

    Memory Frequency [DDR4-3600MHz]
    FCLK Frequency [Auto]

    CPU SOC Voltage [Manual]
    - VDDSOC Voltage Override [1.05000]

    DRAM Voltage [1.40000]

    DRAM Current Capability [120%] <this stops cold boot 0d errors or does for me>


    DRAM CAS# Latency [14]
    Trcdrd [15]
    Trcdwr [15]
    DRAM RAS# PRE Time [15]
    DRAM RAS# ACT Time [28]
    Trc [42]
    TrrdS [6]
    TrrdL [8]
    Tfaw [16]
    TwtrS [4]
    TwtrL [12]
    Twr [12]
    Trcpage [Auto]
    TrdrdScl [5]
    TwrwrScl [5]
    Trfc [288]
    Trfc2 [Auto]
    Trfc4 [Auto]
    Tcwl [16]
    Trtp [8]
    Trdwr [8]
    Twrrd [3]
    TwrwrSc [1]
    TwrwrSd [7]
    TwrwrDd [7]
    TrdrdSc [1]
    TrdrdSd [5]
    TrdrdDd [5]
    Tcke [9]
    ProcODT [34.3 ohm]
    Cmd2T [1T]
    Gear Down Mode [Disabled]
    Power Down Enable [Disabled]
    RttNom [Rtt_Nom Disable]
    RttWr [Dynamic ODT Off]
    RttPark [RZQ/5]
    MemAddrCmdSetup [Auto]
    MemCsOdtSetup [Auto]
    MemCkeSetup [Auto]
    MemCadBusClkDrvStren [30.0 Ohm]
    MemCadBusAddrCmdDrvStren [20.0 Ohm]
    MemCadBusCsOdtDrvStren [20.0 Ohm]
    MemCadBusCkeDrvStren [24.0 Ohm]
    Mem Over Clock Fail Count [Auto]


    See if this produces better results than your current setup.

    Click image for larger version. 

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ID:	84250

    https://www.userbenchmark.com/UserRun/25176144
    Firestrike - https://www.3dmark.com/3dm/44428278
    Skydiver - https://www.3dmark.com/3dm/44428345
    Firestrike Ultra - https://www.3dmark.com/3dm/44428627

    You could also try Ryzen Dram Calculator
    https://www.techpowerup.com/download...am-calculator/
    Last edited by RedSector73; 03-11-2020 at 11:25 PM.

  9. #9
    ROG Guru: White Belt Array XIIIIX PC Specs
    XIIIIX PC Specs
    MotherboardCrosshair VIII Formula
    Processor3900X
    Memory (part number)Gskill F4-3000C14Q-32GTZ 1T@3733 16-16-16-36-60
    Graphics Card #1GTX2080Ti
    Sound CardX7 LE
    MonitorBig enough
    Storage #1SAMSUNG MZVKW512
    Storage #2SAMSUNG MZVKW1T0
    CPU CoolerH110
    CaseLevel 10
    Power SupplySeasonic 1050 Platinum
    Keyboard K70 Mk.2 SE
    Mouse M65 Elite SE
    Headset AKG
    Mouse Pad Rog big one
    Headset/Speakers Harman GLASS
    OS W10
    Network RouterRT-AX88U

    Join Date
    Feb 2017
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    Click image for larger version. 

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Views:	0 
Size:	600.4 KB 
ID:	84254

    Done it. Best results for my setup as above. (For now)
    1 core peaks @4625
    2 cores peak @45,75
    4 cores peak @44,25
    Going more tight, even with lower uncore results in a lower max peak.
    1 core @45,75
    2 cores @44,25
    4 cores @42,50
    Usmus1 energy profile.

    https://www.userbenchmark.com/UserRun/25428548https://www.userbenchmark.com/UserRun/25428548
    https://www.3dmark.com/3dm/44668293?
    https://www.3dmark.com/3dm/44668420?
    https://www.3dmark.com/3dm/44668798?
    https://www.3dmark.com/spy/10914715
    https://www.3dmark.com/pr/205275
    Last edited by XIIIIX; 03-13-2020 at 06:41 AM.

  10. #10
    ROG Guru: Blue Belt 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
    43
    Posts
    877

    Nice results, well done OP

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