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z270 FTW K 4133ghz DDR4 Won't Boot

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nmac007
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Saturday, February 11, 2017 6:53 AM (permalink)
So I picked 16GB of the DDR4 G.SKILL 4133ghz ram for my new z270 build on this board.  If I apply the XMP profile the board won't boot with the ram set to 4133.  If I clock it down to 3600 then it boots fine and I keep the voltage set at 1.35 (what the ram requires) and everything is good.
 
Anyone found a way to get higher than 3600ghz on the z270 boards, not OC'd, the stock speed of the ram?  Maybe we need to wait for a BIOS update for this?  
#1

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    quadlatte
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    Re: z270 FTW K 4133ghz DDR4 Won't Boot Saturday, February 11, 2017 7:05 AM (permalink)
    what cpu? could be a limitation in the memory controller in the cpu.

                                   
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    nmac007
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    Re: z270 FTW K 4133ghz DDR4 Won't Boot Saturday, February 11, 2017 7:19 AM (permalink)
    quadlatte
    what cpu? could be a limitation in the memory controller in the cpu.




    7700k
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    loveha
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    Re: z270 FTW K 4133ghz DDR4 Won't Boot Saturday, February 11, 2017 7:59 AM (permalink)
    You are guaranteed 2133MHz, any speed beyond that is a bonus. You are essentially gambling on faster RAM working. Sometimes it does, sometimes it doesn't. Like mentioned, your Memory Controller may not be able to handle that speed.
     
    My RAM XMP 1 Profile is for 3200MHz, but it does not boot, so I have to use XMP 2 at 3000MHz for it to boot. (Note: Not all RAM has more than one XMP profile.)
    post edited by loveha - Saturday, February 11, 2017 8:01 AM

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    Sajin
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    Re: z270 FTW K 4133ghz DDR4 Won't Boot Saturday, February 11, 2017 9:10 PM (permalink)
    loveha
    You are guaranteed 2133MHz, any speed beyond that is a bonus. You are essentially gambling on faster RAM working. Sometimes it does, sometimes it doesn't. Like mentioned, your Memory Controller may not be able to handle that speed.
     
    My RAM XMP 1 Profile is for 3200MHz, but it does not boot, so I have to use XMP 2 at 3000MHz for it to boot. (Note: Not all RAM has more than one XMP profile.)


    +1
     
    The 7700k is guaranteed by intel to work at 2133 or 2400, everything past 2400 is considered a overclock, and your mileage may very depending on how good of a IMC you get.
    post edited by Sajin - Saturday, February 11, 2017 9:50 PM


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    Cordorb
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    Re: z270 FTW K 4133ghz DDR4 Won't Boot Sunday, February 12, 2017 0:19 PM (permalink)
    I am trying the Corsair vengeance  with the i7-7700K
     
    DDR4 2x8 GB total 16 GB 3000 MHZ  15-17-17-35-1.35 V
     
    CMU16GX4M2C3000C15R   1.35 volts  ver 5.30
     
    System did do the first bios boot at 1.223 Volts
     
    ONLY set memory voltage so far and passed all night lastest memtest86
    bios shows now
     2133 Mhz  1.36 volts   I had set the voltage to 1.340
     
     
     

     
     
    #6
    Yagyu_Jubei
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    Re: z270 FTW K 4133ghz DDR4 Won't Boot Tuesday, February 14, 2017 9:39 AM (permalink)
    Try messing with VDIMM, VSA and VCCIO. Lower timings could be a solution also.
    #7
    xxM7xx
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    Re: z270 FTW K 4133ghz DDR4 Won't Boot Friday, July 31, 2020 6:23 PM (permalink)
    I have the same issue! also I have the same exact Corsair RAM DIMMS. The only difference is that I have the none K i7 7700. 
    I couldn't not get the motherboard to boot if I enable XMP. The same RAM sticks I was able to OC them on an ASUS motherboard, What am I doing wrong?! 
     
    #8
    Cool GTX
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    Re: z270 FTW K 4133ghz DDR4 Won't Boot Friday, July 31, 2020 7:15 PM (permalink)
    xxM7xx
    I have the same issue! also I have the same exact Corsair RAM DIMMS. The only difference is that I have the none K i7 7700. 
    I couldn't not get the motherboard to boot if I enable XMP. The same RAM sticks I was able to OC them on an ASUS motherboard, What am I doing wrong?! 
     




     
    Are you saying the MB got stuck / failed at RAM training ?  What code did the MB stop on ?
     
    XMP does not always work .. have you tried setting the RAM timing & voltage manually ?
     
    Your CPU OC can also contribute to issues
     
    Same CPU & RAM & PSU on that Asus MB  ?

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    xxM7xx
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    Re: z270 FTW K 4133ghz DDR4 Won't Boot Friday, July 31, 2020 7:31 PM (permalink)
    After setting up the XMP profile (profile 1). I save/reset the BIOS for the new setting to effect. After that the motherboard does not post and when looking at the LED display on the motherboard I get (4C) error. I have to do a CLR CMOS for it to boot again.
     
    This might sound stupid I never heard of the term RAM training! I just googled that.. didn't know that the motherboard is capable of achieving such method. It is not even in the manual! So I don't know what is the process of doing that 
     
    I did try setting the voltage manually (I was getting 1.22v and changed it to 1.35v), but not the RAM timing.
     
    Yes I did have the Same CPU & RAM & PSU on that Asus MB. I just swapped this board with the Asus one 
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