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  1. #1
    ROG Enthusiast Array TheTiesThatBind PC Specs
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    MAXIMUS X HERO & 8700K on Stock downclock?

    Hello ASUS ROG Community, I'm facing the following issue. I did several testing and stress tests, once I activate XMP Profile my CPU with everything on default downclocks after a few seconds in stress tests with and without AVX instructions on from 4.3GHz to 3.9GHz. I used Prime95, AIDA and OCCT for stress testing. Weirdly, I reach 1.406V on stock with SVID set to Best Scenario and MCE off. If I don't activate the XMP Profiles every stress test works like a charm. In order to solve this issue I manually OCed my CPU to 4.7 GHz & 1.264V but I would like to run at stock speeds of Intel with the turbo boost since I don't really need 4.7GHz for now for my daily gaming.

    What can I possible do to avoid this issue? My issue is the same with this guys topic: https://rog.asus.com/forum/showthrea...TH-XMP-enabled .

    Shall I set my RAM clocks manually and use VCCIO at 1.1 (as I'm currently using for the 4.7 GHz / All Core)? Do I have to adjust/tweak any other setting? I only want to run with MCE disabled, SVID Support -> Best Case Scenario so my voltages are better than the Worst Case scenario on auto and run at stock speeds instead of 4.7GHz. I'm satsified with my stability of the system so far, I did 2 prime95 tests, one for an hour and another one for 4 hours, also under gaming my CPU runs at ~50 celcius and during stress test max ~75C and average ~60-65 with AVX disabled (Prime95 -> 1344) since I don't use any AVX apps.

    Hopefully someone can help me solve this issue

    Kind regards and thanks in advance!

  2. #2
    ROG Guru: Orange Belt Array ThrashZone PC Specs
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    Motherboardz490 XII Apex 2nd x299 VI Apex 3rd x99 sabertooth
    Processori9-10900k w/Foundation & i9-9940x w/SigV2 & 5930k w/ek-Magnitude
    Memory (part number)Trident-Z 3600c16 2x8 2nd Trident-Z 3600C16 4x8 3rd 3200c14 4x8
    Graphics Card #1Titan Xp & 1080ti FTW3 both water cooled & evga 980ti gaming on air
    MonitorAOC G2460PG 24"G-Sync 144Hz & ASUS VG248QE 24" 144Hz
    Storage #12-Samsung 970 Evo Plus 500gb M.2 & 2.5" ssd's 850 pro's for os 850 evo for games
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    CPU Cooler2-240GTX with Heatkiller-4-Pro/ vrm water block Both&x299 2-280GTX 2-D5's before and after rads
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    Hi,
    Best I could say is review this coffee lake oc guide
    https://drive.google.com/file/d/1I_1...4Bvin9nZZ/view

  3. #3
    ROG Enthusiast Array TheTiesThatBind PC Specs
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    Laptop (Model)Dell Inspiron 5567
    MotherboardROG MAXIMUS X HERO
    ProcessorINTEL i9-9900K
    Memory (part number)F4-3200C14D-16GTZ
    Graphics Card #1EVGA GEFORCE GTX 1080 FTW2
    MonitorASUS VG248QE
    Storage #1SAMSUNG NVME 960 EVO 250GB
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    CPU CoolerCORSAIR H115i PRO RGB 280MM
    CaseNZXT H700 BLACK
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    Hello and thank you for your reply. As I said I managed to OC my CPU but I also want to know how can I make it to run at stock speeds without underclocking itself.

    Kind regards

  4. #4
    ROG Guru: Orange Belt Array ThrashZone PC Specs
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    Motherboardz490 XII Apex 2nd x299 VI Apex 3rd x99 sabertooth
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    Memory (part number)Trident-Z 3600c16 2x8 2nd Trident-Z 3600C16 4x8 3rd 3200c14 4x8
    Graphics Card #1Titan Xp & 1080ti FTW3 both water cooled & evga 980ti gaming on air
    MonitorAOC G2460PG 24"G-Sync 144Hz & ASUS VG248QE 24" 144Hz
    Storage #12-Samsung 970 Evo Plus 500gb M.2 & 2.5" ssd's 850 pro's for os 850 evo for games
    Storage #22-LG Blu-Ray WH16NS40
    CPU Cooler2-240GTX with Heatkiller-4-Pro/ vrm water block Both&x299 2-280GTX 2-D5's before and after rads
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    Hi,
    Not sure what that means
    Are you using a balanced power plan if so it has a cpu setting to only use 5% max 100%
    If you switch to a performance power plan it's minimum cpu setting is 100%.

  5. #5
    ROG Enthusiast Array TheTiesThatBind PC Specs
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    Laptop (Model)Dell Inspiron 5567
    MotherboardROG MAXIMUS X HERO
    ProcessorINTEL i9-9900K
    Memory (part number)F4-3200C14D-16GTZ
    Graphics Card #1EVGA GEFORCE GTX 1080 FTW2
    MonitorASUS VG248QE
    Storage #1SAMSUNG NVME 960 EVO 250GB
    Storage #2SAMSUNG 850 EVO 250GB
    CPU CoolerCORSAIR H115i PRO RGB 280MM
    CaseNZXT H700 BLACK
    Power SupplyCORSAIR RM750X V2
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    Mouse RAZER DEATHADDER ELITE
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    Quote Originally Posted by ThrashZone View Post
    Hi,
    Not sure what that means
    Are you using a balanced power plan if so it has a cpu setting to only use 5% max 100%
    If you switch to a performance power plan it's minimum cpu setting is 100%.
    It means the following:

    Let's say I do a load optimized defaults settings so everything turns to DEFAULT right? If I only enable XMP Profile of my rams (CMU16GX4M2C3000C15) and I go to do a stress test my CPU will under-clock in a few seconds from 4.3 to 3.9 or even lower than that! I wanted to run my CPU on Intel's stock settings but since I couldn't make it run like that I was forced to OC to 4.7 GHz @ 1.264V. If I keep everything on default CPU won't underclock under stress test but if I enable my XMP profiles it will. I have no issues running XMP on an AORUS Gaming 7 before I upgrade to Maximus X Hero. So what's going on? What do I need to do to run on Intel's stock settings with Intel's Turbo Boost only activated?

    Thanks in advance!

  6. #6
    ROG Guru: Orange Belt Array ThrashZone PC Specs
    ThrashZone PC Specs
    Motherboardz490 XII Apex 2nd x299 VI Apex 3rd x99 sabertooth
    Processori9-10900k w/Foundation & i9-9940x w/SigV2 & 5930k w/ek-Magnitude
    Memory (part number)Trident-Z 3600c16 2x8 2nd Trident-Z 3600C16 4x8 3rd 3200c14 4x8
    Graphics Card #1Titan Xp & 1080ti FTW3 both water cooled & evga 980ti gaming on air
    MonitorAOC G2460PG 24"G-Sync 144Hz & ASUS VG248QE 24" 144Hz
    Storage #12-Samsung 970 Evo Plus 500gb M.2 & 2.5" ssd's 850 pro's for os 850 evo for games
    Storage #22-LG Blu-Ray WH16NS40
    CPU Cooler2-240GTX with Heatkiller-4-Pro/ vrm water block Both&x299 2-280GTX 2-D5's before and after rads
    Case2- Corsair 450D with second floors for 240GTX & 280GTX rads & 2 Test Benchs
    Power SupplyEVGA 1000P2 & 1200P2 & 850p2
    Keyboard 3x Logitech G710+
    Mouse 3x Red dragon Perdition
    OS Linux-Cinnimon 20.2 & Win-7-10-11 pro
    Accessory #1 Optimus Foundation copper plexi 2nd Optimus SigV2
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    ThrashZone's Avatar
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    Hi,
    Usually wouldn't down clock unless you're using avx offset or possibly look and see if llc is disabled instead of on auto.

  7. #7
    ROG Enthusiast Array TheTiesThatBind PC Specs
    TheTiesThatBind PC Specs
    Laptop (Model)Dell Inspiron 5567
    MotherboardROG MAXIMUS X HERO
    ProcessorINTEL i9-9900K
    Memory (part number)F4-3200C14D-16GTZ
    Graphics Card #1EVGA GEFORCE GTX 1080 FTW2
    MonitorASUS VG248QE
    Storage #1SAMSUNG NVME 960 EVO 250GB
    Storage #2SAMSUNG 850 EVO 250GB
    CPU CoolerCORSAIR H115i PRO RGB 280MM
    CaseNZXT H700 BLACK
    Power SupplyCORSAIR RM750X V2
    Keyboard CORSAIR K70 MK2 RAPIDFIRE
    Mouse RAZER DEATHADDER ELITE
    Headset HYPERX CLOUD REVOLVER
    Mouse Pad RAZER GOLIATHUS CONTROL EXTENDED
    OS WINDOWS 10 HOME X64
    Accessory #1 SAMSUNG 860 EVO 500GB
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    I tried both AVX on and off and still downclocks, gonna check about LLC. Downclock comes after XMP being enabled an Per Core changes to "All Core" same happens when I turn off MCE I think

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