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What does 4133MHz+ mean in the Z370 FTW specs? G-Skill 4266 MHz compatible?

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isocyanate
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2018/01/22 11:58:37 (permalink)
Does it mean that the board is good up to 4133 MHz and maybe more but not guaranteed? 
 
I have G-Skill 4266 MHz RAM F4-4266C19D-16GTZKW (impulse purchase, it's not on the compatibility list but I gambled on the "4133+") and the board won't consistently POST at the XMP profile speed (4133 MHz), only the default of 2133 MHz
 
What are the chances that the RAM would be supported in a future BIOS release?  I'll just run this RAM at 2133 MHz for now.
post edited by isocyanate - 2018/01/22 13:00:30
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    Sajin
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    Re: What does 4133MHz+ mean in the Z370 FTW specs? G-Skill 4266 MHz compatible? 2018/01/22 12:10:29 (permalink)
    4133+ means the board can support speeds greater than 4133 mhz as long as the imc on the cpu is willing.


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    isocyanate
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    Re: What does 4133MHz+ mean in the Z370 FTW specs? G-Skill 4266 MHz compatible? 2018/01/22 13:02:06 (permalink)
    OK, thanks.  Looks like it's not willing!
     
    I experimented with the manual settings and I can boot at 3600 MHz (and maybe a little quicker even).  Good enough for now.
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    Sajin
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    Re: What does 4133MHz+ mean in the Z370 FTW specs? G-Skill 4266 MHz compatible? 2018/01/22 13:03:18 (permalink)



    See my current build here: https://forums.evga.com/My-bench-rig-unlimited-power-m3596024.aspx
    RTX 2080 Ti 4-way SLI?!?!: https://forums.evga.com/RTX-2080-Ti-4way-SLi-set-by-yours-truly-m2954756.aspx
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    tonton_pnoy
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    Re: What does 4133MHz+ mean in the Z370 FTW specs? G-Skill 4266 MHz compatible? 2018/02/20 11:06:14 (permalink)
    So I can’t use lower than 4133? Thanks
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    bcavnaugh
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    Re: What does 4133MHz+ mean in the Z370 FTW specs? G-Skill 4266 MHz compatible? 2018/02/20 11:26:35 (permalink)
    SPD Speed 2133MHz Link So if need be you can run your Memory @ 2133MHz in Auto Mode as you now are doing.
    Tested Speed 4266MHz Did you Test on Both XMP1 and XMP2 Profiles?
     
     Tested Speed 4266MHz 
     Tested Latency 19-19-19-39 
     Tested Voltage 1.40v 
     
     SPD Speed 2133MHz 
     SPD Voltage 1.20v 
    post edited by bcavnaugh - 2018/02/20 11:31:58

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    ty_ger07
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    Re: What does 4133MHz+ mean in the Z370 FTW specs? G-Skill 4266 MHz compatible? 2018/02/20 12:58:00 (permalink)
    tonton_pnoy
    So I can’t use lower than 4133? Thanks

    Incorrect.

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    tonton_pnoy
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    Re: What does 4133MHz+ mean in the Z370 FTW specs? G-Skill 4266 MHz compatible? 2018/02/20 13:15:03 (permalink)
    Thanks! I thought lower than that is incompatible
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