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Hot!Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark?

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adcustom
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2019/02/05 12:01:46 (permalink)
Hey all. I've had the Z390 Dark for a few weeks now and love it. But I'm having a heck of a time getting my memory stable. Can't even run it at rated XMP speeds/timings. 
 
It's this: https://www.gskill.com/en/product/f4-4600c18d-16gtzr
 
My 9900K overclock is rock solid at 5GHz all cores with 1.28 voltage. But unless I run my memory at "auto," I have instability. The Dark states it's compatible with 4600MHz memory and AFAIK, G.Skill makes the only kind on the market, so I'm stumped. Any thoughts?
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    Sajin
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/05 12:05:32 (permalink)
    Just because the board says it's compatible to run up to 4600 MHz doesn't mean your cpu imc will be able to handle 4600 MHz.


    #2
    adcustom
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/05 12:07:12 (permalink)
    Meaning that I lost the silicon lottery with my 9900K?
    #3
    Sajin
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/05 12:29:02 (permalink)
    Possibly. See if adjusting your vccio & vsa voltages to 1.35 volts will help get the memory running.


    #4
    ataya
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/06 05:51:29 (permalink)
    I have the same ram, 9900k, and dark mobo. I have a weird issue. My ram runs near stable at 3900 mhz  15,15,15,36 2T. Not tested much but no bsod. But what ever I do, I can' t make my board post at 4000 mhz. 4000 mhz with even 20 timings not posting. Try sa/io 1.5v, dramv 1.7, 1.8, 1.9 even 2.0 volts. Nothing changes. Increased cpu vcore, no help. What is my problem don' t understand. It s like something directly putting the system into bootloop after 4000 mhz. Possible I am missing something? Or some bios problem?
    #5
    adcustom
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/06 06:08:14 (permalink)
    Yeah, I'm pretty disappointed after dropping 500 bones on the memory. I recognize it's absurd, but I splurged and I'm not really regretting it. FWIW, this ram worked perfect on my previous board, the Asus Maximum XI Extreme. I definitely like the Dark more overall, but something funky is going on with the BIOS and high speed ram like this. 
    #6
    wwxww
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/06 10:12:35 (permalink)
    I, also,  am having issues running G.Skill 4000cl17 1.35v sticks. I can run them at xmp 4266 with 1.45v, only at stock timings though. Using k|ngp|n's setting I can not post unless I slow down to 1800Mhz. The lowest I can go in timing is 16-16-16-36 without the system going into the circle of doom. I just assumed that I could go really low timings and faster speed because of the stock timing cl17 . Funny thing is all of my memory benchmarks read 1 less value than what I am running in the bios. Cl17 comes back as 16 for latency and 16 comes back as 15 in tests. I also have a XI Extreme. I really like that board also. So far, the Extreme scores better in benchmarks. Memory is lower and the 970 Pro ssd is much lower. Graphics looks to be higher, but I can not be sure until my other cpu gets back to me. (IHS came off). Some of the above I believe is user error.
     
    #7
    Cool GTX
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/06 10:27:08 (permalink)
    Does G.Skill claim this RAM is tested as compatible with the EVGA Z390 Dark ?


    Specifications Tab - from your link in OP


    "Additional Notes   Rated XMP frequency & stability depends on MB & CPU capability."
     
    G.Skill has good support
     
    https://www.gskill.com/en/contact
     
     
     

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    #8
    wwxww
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/06 10:32:14 (permalink)
    I do not believe G.Skill has any ram listed for this board posted, yet. I have not asked G.Skill support. I was just using what I have. The only other RAM that I have is Corsair 4000cl19 and Dominator 3000cl15.
     
     
    OOh, I see what you did there.
     
    #9
    Cool GTX
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/06 10:34:03 (permalink)
    G.Skill may be able to give you different timing & Voltages to manually select or other guidance

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    #10
    wwxww
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/06 10:35:23 (permalink)
    Ok, thank you.
    #11
    Cool GTX
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/06 11:20:42 (permalink)
    If you get a solution from G.Skill give an update to help other members

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    #12
    ataya
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/06 11:45:30 (permalink)
    I emailed g.skill describing my problems, and an answer came in 15 minutes. 
     
    "BIOS is not ready, use a motherboard on the G.Skill QVL if you would like to achieve the rated specifications:
     
    https://gskill.com/en/product/f4-4600c18d-16gtrs
     
    Thank you
    GSKILL SUPPORT"
    #13
    Cool GTX
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/06 12:06:50 (permalink)
    looks like you will have to test "looser timings"
     
    look this thread over: EVGA Z390 DARK and B-Die based low latency memory overclocking

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    adcustom
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/07 05:30:06 (permalink)
    Thanks for linking to that thread! LOT of good info by Kingpin in there.
    #15
    Cool GTX
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/07 06:01:02 (permalink)
    happy to help

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    #16
    TheMadDutchDude
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/07 06:56:09 (permalink)
    You might be putting too much voltage through the IMC. 1.5v? Dude. We don’t even go that high on LN2. You could have done some serious damage with that.

    As said above, it might be your IMC. Running extreme clocks takes a lot of tuning. It’s not easy. Your best bet is to start low and avoid the 4000 strap as it’s apparently causing issues. Try to skip it and go to 4133 or 4266 and see what happens.

    Vince’s profiles aren’t guaranteed to work with everyone else’s modules. It’s a starting point provided your hardware is capable.

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    #17
    ataya
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/07 08:03:39 (permalink)
    Now trying everything from start. 1.5v tried to see if changes something. Never thought of skipping 4000. I will try. Thx a lot.
    #18
    tatm mrk. RIVE
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/10 11:11:39 (permalink)
    I did it with mine just took around 1.4v vccsa and vccio

    Rog realbench stable 16gb density 1hr

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    #19
    Sajin
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/10 12:06:15 (permalink)
    1.4 for 24/7 is too high imo, but if that is what it takes, and you're fine with it then... 


    #20
    tatm mrk. RIVE
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/10 12:09:54 (permalink)
    i sent them back, but Im saying thats what it took.  personally I was gonna use them for low lat OC, but i didn;t have a great cpu to test and the OC guide wasnt up when I still had the sticks.. 

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    onMute
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/10 19:08:23 (permalink)
    I've tried 2 (2x8GB) gskill kits with my dark and had no issues running the XMP profiles...but they were both 4000mhz kits.
     
    The set I have in now has an XMP profile for 4000mhz 17-17-17-37 @ 1.35v. I was able to reduce timings to 15-16-16-36-1T w/ 1.47v (DIMM) and 1.35v (VCCIO/SA) - AIDA64 stable for 90min.
    #22
    ataya
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/10 21:13:16 (permalink)
    You leave subtimings on auto? And if it’s not too hard for you can you post the screenshots of subtimings, so that I can try to put them in manually?
    #23
    onMute
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/11 16:08:15 (permalink)
    ataya
    You leave subtimings on auto? And if it’s not too hard for you can you post the screenshots of subtimings, so that I can try to put them in manually?

     
    Yeah, all the secondary and tertiary timings are set to auto. I can post my settings but you may not be able to achieve the same as there are many variables to getting a stable RAM OC.
     

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    #24
    wwxww
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/11 16:17:30 (permalink)
    Are you able to run them faster than 4000 with or without tighter timings?
    #25
    onMute
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/11 16:47:49 (permalink)
    wwxww
    Are you able to run them faster than 4000 with or without tighter timings?



    No, anything over 4000mhz with this kit seems to not want to POST (GSkill XMP 4000mhz 17-17-17-37 @ 1.35v). I'm sure if i got really aggressive with the VCCIO/SA and DIMM voltage it could, but not worth it to me. My other kit would get through POST above 4000mhz but fail on the stress test (Gskill XMP 4000mhz 18-19-19-39 @ 1.35v). 
    #26
    wwxww
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/11 16:54:57 (permalink)
    I can run 4300 at stock timing using the same G.Skill 4000 17-17-17, but can not run lower timing. Go figure...huh? I tried your setting at 43, 42, 41, and then 40 with no luck. Good for you, for sure.
    #27
    onMute
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/11 17:30:35 (permalink)
    wwxww
    I can run 4300 at stock timing using the same G.Skill 4000 17-17-17, but can not run lower timing. Go figure...huh? I tried your setting at 43, 42, 41, and then 40 with no luck. Good for you, for sure.


    Interesting, chip variability and silicon lottery on display. 4300mhz with those timings is still great.
    #28
    TahoeDust
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/17 11:51:28 (permalink)
    Sajin
    Possibly. See if adjusting your vccio & vsa voltages to 1.35 volts will help get the memory running.


    Do you think 1.35v vccia and vsa is safe for 24/7?
     
    #29
    Sajin
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    Re: Can anyone assist with using G.SKILL 4600MHz and the Z390 Dark? 2019/02/17 12:32:07 (permalink)
    Yes.


    #30
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