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  1. #1
    ROG Member Array Kratzr PC Specs
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    MotherboardASUS ROG Maximus XI Formula
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    Unhappy 9900k with XI FORMULA not able to hit 5GHz

    I´m able to hit 4,9GHz @1,285V but not 5GHz @1,32V.

    Is this normal? Do I have a bad motherboard?

  2. #2
    ROG Guru: Platinum Belt Array Rockford's Avatar
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    hello, i doubt its the motherboard
    UserBenchmarks: Game 22%, Desk 89%, Work 70%
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    Wind in my hair

  3. #3
    ROG Guru: Gold Belt Array Menthol PC Specs
    Menthol PC Specs
    MotherboardM 10 Apex / XI gene
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    Sounds like your CPU may not be a good enough sample, there are some that won't do 5.0. Try 1.35 volts, depending on cooling it may either not boot or get to warm for daily use

  4. #4
    ROG Guru: Yellow Belt Array x-rated PC Specs
    x-rated PC Specs
    MotherboardAsus ROG Maximus XI Formula - Intel Z390
    ProcessorIntel Core i9-9900K @ 5 GHz
    Memory (part number)G.Skill Trident Z F4-3600C16D-16GTZR - 4x 8 GB, 4 GHz, 18-18-18-38
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    Quote Originally Posted by Kratzr View Post
    I´m able to hit 4,9GHz @1,285V but not 5GHz @1,32V.
    Is this normal? Do I have a bad motherboard?
    do you have some LLC manually set in bios? if not, try 6 with adaptive voltage 1,34V or more for 5 GHz

  5. #5
    ROG Member Array Kratzr PC Specs
    Kratzr PC Specs
    MotherboardASUS ROG Maximus XI Formula
    Processori9 9900k
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    Graphics Card #1ASUS STRIX GTX 1080 Advanced
    Monitor2x BENQ XL2411
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    Quote Originally Posted by x-rated View Post
    do you have some LLC manually set in bios? if not, try 6 with adaptive voltage 1,34V or more for 5 GHz
    I use LLC 6 all the time and don´t you think 1,34V is too much for daily use?

  6. #6
    ROG Guru: Yellow Belt Array x-rated PC Specs
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    MotherboardAsus ROG Maximus XI Formula - Intel Z390
    ProcessorIntel Core i9-9900K @ 5 GHz
    Memory (part number)G.Skill Trident Z F4-3600C16D-16GTZR - 4x 8 GB, 4 GHz, 18-18-18-38
    Graphics Card #1Nvidia GeForce RTX 2080 Ti FE - 2,1/15,6 GHz
    Sound CardCreative Sound Blaster X-Fi Titanium HD
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    1,34V is nothing in load it will always drop bellow 1,3V anyways, in heavy load it will hit almost 1,2V

  7. #7
    ROG Member Array Kratzr PC Specs
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    MotherboardASUS ROG Maximus XI Formula
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    Memory (part number)CMK32GX4M4C3000C15
    Graphics Card #1ASUS STRIX GTX 1080 Advanced
    Monitor2x BENQ XL2411
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    Quote Originally Posted by x-rated View Post
    1,34V is nothing in load it will always drop bellow 1,3V anyways, in heavy load it will hit almost 1,2V
    and it´s safe for day to day use?

  8. #8
    ROG Guru: Yellow Belt Array x-rated PC Specs
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    MotherboardAsus ROG Maximus XI Formula - Intel Z390
    ProcessorIntel Core i9-9900K @ 5 GHz
    Memory (part number)G.Skill Trident Z F4-3600C16D-16GTZR - 4x 8 GB, 4 GHz, 18-18-18-38
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    of course it is, everything under 1,4V is super safe, but it also depends on your cooling capabilities
    for example you wont be able to cool avx enabled prime95 with 1,4V set in bios probably

  9. #9
    ROG Guru: Blue Belt Array mdzcpa PC Specs
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    MotherboardMaximus Hero XI
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    Not the board. I'd go to 1.35v and see what happens. Not worth the heat for 1.4v only to gain another 100mhz. 4.9ghz at 1.285v is a good clock. I would suspect heat is the issue. What temps are you seeing under load?

  10. #10
    ROG Guru: Orange Belt Array rjbarker PC Specs
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    Quote Originally Posted by mdzcpa View Post
    Not the board. I'd go to 1.35v and see what happens. Not worth the heat for 1.4v only to gain another 100mhz. 4.9ghz at 1.285v is a good clock. I would suspect heat is the issue. What temps are you seeing under load?
    Agreed......once you hit 1.35v or so the gains simply arent worth it....as said above if you can do 4.9 all cores with 1.285v or so thats a nice Clock speed given the voltage... 2% gains for every 100Mhz increase is hardly worth runnig the additional current and heat....I hit 5 Ghz at 1.285v but 5.1 has a steep Voltage increase....not worth it....

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