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  1. #1
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    Need Advice on new gaming PC - Keep or replace Ram ?

    Hi All

    I have just recently built a new PC and come across an issue with the ram not running at the stated speed of 4000 Mhz. Asus technical team have advised me that the ram i have bought is not on the QVL list:-
    CMK32GX4M4K4000C19 = Tested and on the QVL list
    CMW32GX4M4K4000C19 = What i bought

    I have managed to get the ram running at 3600Mhz fine so i'm not sure what to do, is it something that will be fixed in the future with a bios update to get 4000 Mhz stable? I am still under warranty so should i send the ram back and get what ? that CMK ram that has been tested and on the list is old end of line and does not have the RGB or heat distribution like the new model.

    I would appciate any advise, maybe some one knows the exact settings to change for a stable 4000 Mhz ?

    Here is my Spec:-
    ROG CROSSHAIR VIII DARK HERO
    Windows 10 64 bit, BIOs 3801
    Geforce RTX 3090 founders edition
    AMD Ryzen 9 5900X
    VENGEANCE RGB PRO 32GB (4 x 8GB) DDR4 DRAM 4000MHz C19 Memory Kit
    be quiet! Dark Power 12 1000 Watt Fully Modular 80+ Titanium PSU/Power Supply
    iCUE H100i ELITE CAPELLIX Liquid CPU Cooler
    WD Black SN850 2TB M.2 PCIe 4.0 Gen4 NVMe SSD/Solid State Drive

  2. #2
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    No one

  3. #3
    ROG Guru: Orange Belt Array xmanrigger PC Specs
    xmanrigger PC Specs
    MotherboardAsus ROG Strix Z490-A
    ProcessorIntel i9-10850
    Memory (part number)F4-4000C15D-16GTRS
    Graphics Card #1EVGA RTX 3070 XC3 Ultra / EK-Quantum Vector
    Sound CardO/B
    MonitorLG 32GK650F-B
    Storage #1WD Black 1TB M.2
    CPU CoolerEK Velocity Strike
    CaseLian Li O1 Dynamic
    Power SupplyCorsair AX1200i
    Keyboard Logitech G15
    Mouse Logitech G502 Hero
    Headset/Speakers logiteck Z-5500 5.1
    OS Win10 Pro 64
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    I will venture to say it may be a weak IMC (Intergated Memory Controller) on the 5900X CPU.

    The higher the CPU clocks you push, the more strain added to the IMC.

    Intel CPUs can suffer from this as well. I have a 16GB kit of Corsair Dominator Platinum 2400Mhz memory. The highest stable speed I am able to reach is 2200mhz using a i7-3930K. The 3930K and the Rampage IV Formula are both rated to run memory at 2400mhz. Hitting 2400mhz is a lottery. Setting it to XMP profiles results in no post. I had to manually overclock the memory and tweak timings to be stable at 2200mhz.

    EDIT: I should mention that some others using an i7-3930K were able to clock memory to 2400mhz and higher. Thus, its a lottery with some CPUs. I had also tried a 16GB kit of G.Skill Ripjawz 2400mhz on same CPU with same result.
    Last edited by xmanrigger; 09-17-2021 at 05:20 AM.
    GUTS: ROG Strix Z490-A / i9-10850 / 16GB G.Skill TridentZ Royal 4000mhz / WD Black 1TB M.2 - 2TB Kingston M.2 / EVGA RTX 3070 XC3 Ultra / Corsair AX1200i PSU / Lian Li O1 Dynamic

    WATER: EK Velocity Strike - CPU / EK-Quantum Vector - GPU / 2X Alphacool NexXxoS UT60 360 Radiators / XSPC Photon Rez / D5 Pump / DISTILLED WATER + Silver Coil

  4. #4
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    yep most likely is your cpu rather than your memory its a bit of a lottery and unless your gaming at 1080p which i highly doubt on a rig like this your not going to notice the difference between 3600mhz and 4000mhz. I doubt with your cpu that you will ever get it to run at 4000mhz and depending on the price difference, and/or if you want to do some serious overclocking I would just stick with what you have.

  5. #5
    ROG Guru: White Belt Array AS185 PC Specs
    AS185 PC Specs
    Laptop (Model)Lenovo Y700-17ISK
    MotherboardZenith Extreme
    ProcessorAMD 1950X
    Memory (part number)8 x G Skill F4-3200C16D-32GTZKW @ 2666MHz
    Graphics Card #1Nvidia Titan RTX
    Sound CardIntegrated SupremeFX
    MonitorSamsung Odyssey G5 C34
    Storage #16 x PNY 2TB XLR8 CS3030
    Storage #23 x 1TB Crucial MX500
    CPU CoolerThermaltake Water3.0 Ultimate
    CaseCorsair Obsidian 900D
    Power SupplyCooler Master MasterWatt Maker 1200W
    Keyboard Razer Ornata Chroma
    Mouse Razer Mambe TE / Logitech USB TrackMan Wheel
    Mouse Pad steelseries Cyberpunk 2077 edition
    Headset/Speakers Logitech Z-5300e
    OS Windows 10 Home x64
    Accessory #1 Asus Hyper M.2 X16 Card V2
    Accessory #2 Asus DIMM.2 card in slot
    Accessory #3 KingMod Corsair 900D Silencing Kit
    AS185's Avatar
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    Hey,

    It could be the IMC but overclocking to 4000MHz takes a lot of skill. I'm thinking it's possible to achieve the frequency. Try asking users in the Overclocking/Tweaking forum.

  6. #6
    ROG Guru: Orange Belt Array xmanrigger PC Specs
    xmanrigger PC Specs
    MotherboardAsus ROG Strix Z490-A
    ProcessorIntel i9-10850
    Memory (part number)F4-4000C15D-16GTRS
    Graphics Card #1EVGA RTX 3070 XC3 Ultra / EK-Quantum Vector
    Sound CardO/B
    MonitorLG 32GK650F-B
    Storage #1WD Black 1TB M.2
    CPU CoolerEK Velocity Strike
    CaseLian Li O1 Dynamic
    Power SupplyCorsair AX1200i
    Keyboard Logitech G15
    Mouse Logitech G502 Hero
    Headset/Speakers logiteck Z-5500 5.1
    OS Win10 Pro 64
    Accessory #1 BeadaPanel 6.8" USB Display for Aida64

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    Quote Originally Posted by AS185 View Post
    Hey,

    It could be the IMC but overclocking to 4000MHz takes a lot of skill. I'm thinking it's possible to achieve the frequency. Try asking users in the Overclocking/Tweaking forum.
    One or two answered above. LOL

    3600mhz is as high as it will post right now. If a person ever managed to get the memory up to 4000mhz with that CPU, the timings would likely be so loose, the memory was probably faster at 3600mhz. Timings are as important or more, than frequency alone.

    Best case scenario is to mess with the timings and tighten them as much as possible. The memory modules should say what voltage they are to run at. Set that voltage in the BIOS and dont go much if any above that. There are other voltages that can be tweaked (vccsa, vccio, pch). But stick with just the dram for now.

    Once you set the dram voltage, you can start tightening the timings. This can be extensive and there are guides to do so.

    You can also bump the FSB frequency. Doing so will overclock the CPU as well though. So be mindful to CPU frequency. You might have to drop a multiplier and/or raise the CPU Core voltage. As I said above, the higher the CPU frequency, the more strain added to the IMC. You should be able to get the FSB to 103mhz easily, but start at 101mhz and slowly work your way up.


    "It could be the IMC but overclocking to 4000MHz takes a lot of skill"
    If it wasnt the IMC, chances are the memory would work straight out of the box at 4000mhz by setting the XMP profile. No overclocking or pissing around to get my G.Kill TridentZ to its rated 4000mhz with my i9-10850K. Set XMP and bang - 4000mhz. With the same timings (15-16-16-36 CL15), I was able to easily bump frequency to 4100+mhz with just the FSB. Without adjusting the vccsa, vccio, pch voltages.

    So yes, the integrity of the IMC plays a big part in higher memory frequencies.
    GUTS: ROG Strix Z490-A / i9-10850 / 16GB G.Skill TridentZ Royal 4000mhz / WD Black 1TB M.2 - 2TB Kingston M.2 / EVGA RTX 3070 XC3 Ultra / Corsair AX1200i PSU / Lian Li O1 Dynamic

    WATER: EK Velocity Strike - CPU / EK-Quantum Vector - GPU / 2X Alphacool NexXxoS UT60 360 Radiators / XSPC Photon Rez / D5 Pump / DISTILLED WATER + Silver Coil

  7. #7
    ROG Guru: White Belt Array AS185 PC Specs
    AS185 PC Specs
    Laptop (Model)Lenovo Y700-17ISK
    MotherboardZenith Extreme
    ProcessorAMD 1950X
    Memory (part number)8 x G Skill F4-3200C16D-32GTZKW @ 2666MHz
    Graphics Card #1Nvidia Titan RTX
    Sound CardIntegrated SupremeFX
    MonitorSamsung Odyssey G5 C34
    Storage #16 x PNY 2TB XLR8 CS3030
    Storage #23 x 1TB Crucial MX500
    CPU CoolerThermaltake Water3.0 Ultimate
    CaseCorsair Obsidian 900D
    Power SupplyCooler Master MasterWatt Maker 1200W
    Keyboard Razer Ornata Chroma
    Mouse Razer Mambe TE / Logitech USB TrackMan Wheel
    Mouse Pad steelseries Cyberpunk 2077 edition
    Headset/Speakers Logitech Z-5300e
    OS Windows 10 Home x64
    Accessory #1 Asus Hyper M.2 X16 Card V2
    Accessory #2 Asus DIMM.2 card in slot
    Accessory #3 KingMod Corsair 900D Silencing Kit
    AS185's Avatar
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    Ok, so not everyone is enlightened as you in overclocking random access memory. Help out the guy rather then showing off.

  8. #8
    ROG Guru: Brown 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
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    Corsair RAM, I know what I think is weak link... Anyway,

    DOCP DDR@4000 and use 1.1v SOC to 1.15v and see if you can get boot and test / sucess.
    If you cant, try DOCP with DDR@3800 and see if the above works, with manually set FLCK 1900 and same SOC voltages try 1.1v and then 1.15v


    How to set SOC Voltage.

    Enter BIOS, Advanced mode.

    Navigate to
    Extreme Tweaker (maybe AI Tweaker) -> CPU SOC Voltage set to manual
    -VDDSOC Voltage Override and type in the voltage. 1.1 (4xdimms) or 1.15 (4xdimms, not quite stable @ 1.1v)
    Last edited by RedSector73; 09-24-2021 at 11:51 PM.

  9. #9
    ROG Guru: Orange Belt Array xmanrigger PC Specs
    xmanrigger PC Specs
    MotherboardAsus ROG Strix Z490-A
    ProcessorIntel i9-10850
    Memory (part number)F4-4000C15D-16GTRS
    Graphics Card #1EVGA RTX 3070 XC3 Ultra / EK-Quantum Vector
    Sound CardO/B
    MonitorLG 32GK650F-B
    Storage #1WD Black 1TB M.2
    CPU CoolerEK Velocity Strike
    CaseLian Li O1 Dynamic
    Power SupplyCorsair AX1200i
    Keyboard Logitech G15
    Mouse Logitech G502 Hero
    Headset/Speakers logiteck Z-5500 5.1
    OS Win10 Pro 64
    Accessory #1 BeadaPanel 6.8" USB Display for Aida64

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    Quote Originally Posted by AS185 View Post
    Ok, so not everyone is enlightened as you in overclocking random access memory. Help out the guy rather then showing off.
    Your reply is laughable at best.

    Hey, I am not here to start a pissing match. Nor do I feel the need to explain my PC skills/experience to some forum troll. I offered the guy some suggestions as to where to start. Please tell me how I was 'showing off'.

    You obviously have little knowledge of OC'ing. Otherwise, your reply would have reflected something constructive. Furthermore, you would know overclocking memory isnt a picnic. Overclocking memory is far more extensive than just bumping a CPU multiplier and voltage and calling yourself a pro. Extensive enough I am not going to sit here and write a story.

    There are some very good guides in this forum and on others that explain in detail. Far more comprehensive than I could ever get. Oh wait, did I just admit I dont know it all? Go figure.

    Have a nice day Troll.
    GUTS: ROG Strix Z490-A / i9-10850 / 16GB G.Skill TridentZ Royal 4000mhz / WD Black 1TB M.2 - 2TB Kingston M.2 / EVGA RTX 3070 XC3 Ultra / Corsair AX1200i PSU / Lian Li O1 Dynamic

    WATER: EK Velocity Strike - CPU / EK-Quantum Vector - GPU / 2X Alphacool NexXxoS UT60 360 Radiators / XSPC Photon Rez / D5 Pump / DISTILLED WATER + Silver Coil

  10. #10
    ROG Guru: White Belt Array AS185 PC Specs
    AS185 PC Specs
    Laptop (Model)Lenovo Y700-17ISK
    MotherboardZenith Extreme
    ProcessorAMD 1950X
    Memory (part number)8 x G Skill F4-3200C16D-32GTZKW @ 2666MHz
    Graphics Card #1Nvidia Titan RTX
    Sound CardIntegrated SupremeFX
    MonitorSamsung Odyssey G5 C34
    Storage #16 x PNY 2TB XLR8 CS3030
    Storage #23 x 1TB Crucial MX500
    CPU CoolerThermaltake Water3.0 Ultimate
    CaseCorsair Obsidian 900D
    Power SupplyCooler Master MasterWatt Maker 1200W
    Keyboard Razer Ornata Chroma
    Mouse Razer Mambe TE / Logitech USB TrackMan Wheel
    Mouse Pad steelseries Cyberpunk 2077 edition
    Headset/Speakers Logitech Z-5300e
    OS Windows 10 Home x64
    Accessory #1 Asus Hyper M.2 X16 Card V2
    Accessory #2 Asus DIMM.2 card in slot
    Accessory #3 KingMod Corsair 900D Silencing Kit
    AS185's Avatar
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    Quote Originally Posted by xmanrigger View Post
    Your reply is laughable at best.

    Hey, I am not here to start a pissing match. Nor do I feel the need to explain my PC skills/experience to some forum troll. I offered the guy some suggestions as to where to start. Please tell me how I was 'showing off'.

    You obviously have little knowledge of OC'ing. Otherwise, your reply would have reflected something constructive. Furthermore, you would know overclocking memory isnt a picnic. Overclocking memory is far more extensive than just bumping a CPU multiplier and voltage and calling yourself a pro. Extensive enough I am not going to sit here and write a story.

    There are some very good guides in this forum and on others that explain in detail. Far more comprehensive than I could ever get. Oh wait, did I just admit I dont know it all? Go figure.

    Have a nice day Troll.
    I honestly don't know where you're getting the idea of a troll here? I replied that I'm not an expert in overclocking. Yes bud, you're showing off. I'm here on the forum to help people out however I can using my long time knowledge. If you can't see that, maybe use the search button instead? I couldn't care less about overclocking.

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