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Help overclocking F4-4000C19D-32GTZR on asus maximux XI extreme with i9 9900k

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  • #16
    i7-9900k stock is DDR4-2666
    so 4000 is a huge overclock, that is why you have to boost the IO and SA voltage, 0.95V and 1.05V is not enough for that OC

    and remember, stock DDR4-2666 voltage is 1.2V your sticks of ddr4-4000 RAM have 1.35V - other buy cheaper and with higher voltage they reach 4000mhz too


    it can happen that the auto adjustment of VCCIO and VCCSA (and sometimes VDIMM) is much to high - can lead to stability problems


    with 4 sticks or 2 sticks dual rank you run in more trouble for higher clock rates and fast memory timings

    i would say your choice was a good one, now you have to play a little bit with the voltages and clock rates to learn what is to do to get it running

    -> for plug and play you should read Qualified Vendors List of your mainboard next time -> https://www.asus.com/Motherboards/RO.../HelpDesk_QVL/

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    • #17
      Originally posted by hq-hq View Post
      i7-9900k stock is DDR4-2666
      so 4000 is a huge overclock, that is why you have to boost the IO and SA voltage, 0.95V and 1.05V is not enough for that OC

      and remember, stock DDR4-2666 voltage is 1.2V your sticks of ddr4-4000 RAM have 1.35V - other buy cheaper and with higher voltage they reach 4000mhz too


      it can happen that the auto adjustment of VCCIO and VCCSA (and sometimes VDIMM) is much to high - can lead to stability problems


      with 4 sticks or 2 sticks dual rank you run in more trouble for higher clock rates and fast memory timings

      i would say your choice was a good one, now you have to play a little bit with the voltages and clock rates to learn what is to do to get it running

      -> for plug and play you should read Qualified Vendors List of your mainboard next time -> https://www.asus.com/Motherboards/RO.../HelpDesk_QVL/
      I can return this ram and get a pack of 4 that is more plug and play and can do better than what I bought. So o
      you have any suggestion from the list of compatible ram?

      Comment


      • #18
        Originally posted by hq-hq View Post
        i7-9900k stock is DDR4-2666
        so 4000 is a huge overclock, that is why you have to boost the IO and SA voltage, 0.95V and 1.05V is not enough for that OC

        and remember, stock DDR4-2666 voltage is 1.2V your sticks of ddr4-4000 RAM have 1.35V - other buy cheaper and with higher voltage they reach 4000mhz too


        it can happen that the auto adjustment of VCCIO and VCCSA (and sometimes VDIMM) is much to high - can lead to stability problems


        with 4 sticks or 2 sticks dual rank you run in more trouble for higher clock rates and fast memory timings

        i would say your choice was a good one, now you have to play a little bit with the voltages and clock rates to learn what is to do to get it running

        -> for plug and play you should read Qualified Vendors List of your mainboard next time -> https://www.asus.com/Motherboards/RO.../HelpDesk_QVL/
        Would you be able to guide me through the overclocking step by step please?

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        • #19
          ok, please read out the VCCIO and VCCSA voltage @XMP profile with 3700MHz (you can do this with HWiNFO64 "sensors" look there for your mainboard, maybe ASUS AI Suite will work too)
          please post the values
          in the meanwhile please find the option to change them in your bios - should be here: "CPU Core/Cache Voltage"

          ( if it is easy to change the ram sticks you can try to get F4-4133C19D-16GTZR or F4-4000C17D-16GTZR, do you want 32 gig now or maybe later please check the list if the 32gb kit of the choosen 16gb kit is in the list too... )


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          • #20
            Originally posted by hq-hq View Post
            ok, please read out the VCCIO and VCCSA voltage @XMP profile with 3700MHz (you can do this with HWiNFO64 "sensors" look there for your mainboard, maybe ASUS AI Suite will work too)
            please post the values
            in the meanwhile please find the option to change them in your bios - should be here: "CPU Core/Cache Voltage"

            ( if it is easy to change the ram sticks you can try to get F4-4133C19D-16GTZR or F4-4000C17D-16GTZR, do you want 32 gig now or maybe later please check the list if the 32gb kit of the choosen 16gb kit is in the list too... )

            I want 32 gb or 64 GB and something to obtain the vest performance.

            From this list below

            https://dlcdnets.asus.com/pub/ASUS/m...184.1545942982

            the 1st 64 (4 x16 gb) bank that come up is this:

            http://gskill.com/en/product/f4-3733c17q-64gtzsw

            https://www.newegg.com/Product/Produ...82E16820236285

            and the 32gb are these:

            https://www.gskill.com/en/product/f4-4000c18q-32gtz

            https://www.gskill.com/en/product/f4-4000c17q-32gtzr

            https://www.gskill.com/en/product/f4-3866c18q-32gtzr

            https://www.gskill.com/en/product/f4-3733c17q-32gtzsw

            https://www.gskill.com/en/product/f4-3733c17q-32gtzr

            https://www.gskill.com/en/product/f4-3600c17q-32gtzr

            https://www.gskill.com/en/product/f4-3466c16q-32gtzr

            https://www.gskill.com/en/search?key...3400C16D-32GTZ

            https://www.gskill.com/en/product/f4-3333c16d-32gtzb

            I am still confused about the mhz.
            What I should go for ? I mean they claim these are compatible with the asus motherboard but if we use banks with too high MHz we encounter problems?

            Which one should I get?

            I want the best with no issue .

            if I have to get something similar to what I have and encounter the same issues, it might not be worthed .

            Can I go better with 4 compared to the 2 I have right now ?
            Last edited by marcolisi; 01-02-2019, 07:25 AM.

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            • #21
              The memory controller is within your i7 9900k, your (one of the best) mainboard offers the "infrastructure"

              your bios will try to establish stable communication between your memory controller and your ram

              these will happen by "ram training" your bios will try to find working timings (of course stored timings in your RAM for example XMP Profile1 will be used, these are all primary and some secondary timings and zero tertiary timings)

              maybe
              GSKILL TECH
              can answer the question if memory kits/modules which are on the QVL list have usable timings stored in the bios already...

              if your i7 9900k needs "special treatment" for vccio and vccsa, QVL listed memory will probably fail too working with higher clockrates than 3700MHz

              i don`t know if there is a logic behind the "auto" voltage setting or if it simple raise it with higher clock rates

              as i know 4 DIMMS and double ranked DIMMS means more problems with higher clock rates and lower timings

              my experience is limited to Z97 G.Skill Ripjaws DDR3-2400@2600MHz 11 13 13 31 @ i7 4790k and G.Skill Trident Z DDR4-4133 19 19 19 39 on Z370 Gigabyte Board @3866MHz 16 16 16 30 and Z370 ASRock Board @4133 17 17 17 32 and i7 8700k

              atm i think your kit will work with 4000 and better timings than advertised

              for future it makes sense to buy a 32gb kit


              which one i would choose,


              https://www.gskill.com/en/product/f4-3733c17q-32gtzr // https://www.gskill.com/en/product/f4-3733c17q-32gtzsw

              or if you want to be on the safe side "plug and play":

              https://www.gskill.com/en/product/f4-3600c17q-32gtzr

              i think the 3600 kit will run on ~4000 too if you spend time in ram tuning and you don`t fear >1.4V VDIMM
              Last edited by hq-hq; 01-02-2019, 09:23 AM.

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              • #22
                Thank you so so much!

                Finally a qualified and educated on the matter person that can help out !

                What I have right now is 2 16 GB = 32gb at 3700 mhz at timing 19

                Would one of the 2 you rams just mentioned be better than mine ( mine after played with the bios and brought it to 4000 MHz and lowering the timing) ?


                https://www.gskill.com/en/product/f4-3733c17q-32gtzr

                https://www.gskill.com/en/product/f4-3733c17q-32gtzsw

                Would 2 x 16gb be worse than 4 x 8gb ?

                Also asus just replied to me and suggested this ram among all the ones I mentioned you and based on the issues I told them

                32GB (8GBx4) 3733MHz F4-3733C17Q-32GTZKK


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                • #23
                  Regarding optimizing the bios, is what you need in here?
                  Attached Files
                  Last edited by marcolisi; 01-02-2019, 01:43 PM.

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                  • #24

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                    • #25

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                      • #26
                        Hi,

                        ok in your last post you are in the right menu for VCCIO and VCCSA voltage please reduce them now:

                        VCCIO=1.15
                        VCCSA= 1.25V

                        should be more than enough for 3600mhz/3700mhz , please check and test if you can go higher than 3700mhz
                        maybe you can make some screenshots from the bios ram timings @3700mhz

                        (and please don`t OC your cpu/uncore while testing new ddr4 clockrates)

                        in the pic i marked the voltages and they are extreme high - IMO too high and maybe over time little bit dangerous -
                        for coffee lake cpu`s is a max recommended from 1.25V VCCIO and 1.30V VCCSA - and some pages say 1.20V and 1.25V

                        most times VCCSA should be 0.05V higher than VCCIO, sometimes it s better if VCCSA is 0.10V higher than VCCIO and sometimes they have to be equal.

                        1.4V for VDIMM is ok, also 1.45V - if we get your ram running on the desired clockrate you can reduce it and test for stability



                        -> 32GB (8GBx4) 3733MHz F4-3733C17Q-32GTZKK

                        i can`t find 2x16gb in the QVL, i know DoubleSided DIMMS are more tricky with the timings and maybe you can`t reach very high clock rates and of course your timings are little bit higher.

                        so i think that is why ASUS want you to use 4 sticks single sided

                        "
                        Would one of the 2 you rams just mentioned be better than mine" not really, maybe little bit higher bandwith - if we can`t hit 4000mhz i think they will be better because i am sure 4x8gb will reach it
                        Last edited by hq-hq; 01-03-2019, 02:47 AM.

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                        • #27
                          Ok. Thanks. I have questions


                          1) do you want me to remove the overclock that I have right now for the cpu? Right now I have 8 cores at 4.9 ghz.

                          2) if I turn down the voltage to the max recommended from 1.25V VCCIO and 1.30V VCCSA or from1.20V and 1.25V , I might not be able to overclock the cpu to 4.9 ghz

                          Does overclocking this ram I have need to keep the cpu not overclocked ?

                          Do the other modules you and asus advice would need the same adjustments as above ?

                          The end goal is that I would like to keep my cpu overclocked and the ram running the best they could

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                          • #28
                            1) yes, because you should test CPU OC stability without RAM OC and RAM OC stability without CPU OC - the caused errors of unstable CPU or RAM OC are much the same (suddenly closing programs, bluescreens, random exceptions, freezes...)

                            ( for CPU OC i (personally) would never use adatpive mode for VCore )

                            2) if you reduce VCCIO and VCCSA how do you know that your CPU can`t be overclocked to 4.9GHz ? PC isn`t booting anymore?
                            raising VCCIO and VCCSA shouldn`t make CPU overclocking better or worse, your cpu should run with manual 1.25V - 1.30V VCore @ LLC 6 and stock 0.95V VCCIO 1.05V VCCSA @ 4.9+GHz allcore and DDR4@2666MHz [and if you OC the Uncore you should test it too, best way is running multiple memtest, for beginning let it @ stock clock]

                            so please lets do RAM OC without CPU OC or let`s test first how far you can go with the i9 9900k with manual vcore and LLC 6

                            "Does overclocking this ram I have need to keep the cpu not overclocked ?" jesus, no you should and you will have both overclocked, especially the 8 core 16 thread 9900k will benefit from higher memory bandwith

                            "Do the other modules you and asus advice would need the same adjustments as above ?" you should always do adjustments for best performance, if it is needed or if it will run with all @ auto and XMP enabled i can`t say but if you have >= 1.35V VCCIO / VCCSA it is a little bit dangerous
                            Last edited by hq-hq; 01-03-2019, 06:28 AM.

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                            • #29
                              Ok . Thanks . I will start doing it this afternoon . I will write you later.

                              What setting in the bios do you want me to use to have the i9 run not overclocked ?

                              As error, I get a blue screen, if I go over 4.9 ghz , during benchmark
                              Last edited by marcolisi; 01-03-2019, 09:28 AM.

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                              • #30
                                Are you there? How should I start?

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