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x299 dark and mixed speed modules quad or dual

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fenice19
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2018/07/10 05:17:50 (permalink)
i've installed 2 modules 16 gb each 3000 dominator so i think system work as dual channel.
i've also 2 x 4 gb corsair dominator modules pc 2800 with two xmp profiles  . If i add them to the last 2 slots ( x299 dark has only 4 slots) i'll enable  quad channel but modules speed and timings are  different.
My question is. dual channel 3000 xmp or quad at spd standard speed  2133 the only compatible ( speed an timings)  for both ( 2800 + 3000 modules ) ?
 
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    Sajin
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    Re: x299 dark and mixed speed modules quad or dual 2018/07/10 11:13:33 (permalink)
    Do not use both kits at the same time. Buy a proper quad channel kit.


    #2
    EVGATech_ThomasN
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    Re: x299 dark and mixed speed modules quad or dual 2018/07/10 13:18:37 (permalink)
    Hello Fenice19, 
     
     
    Unfortunately, this wouldn't be a recommended configuration. If you must use these Intel only certifies the speed of the memory controller up to 2666/2400MHz for Kaby Lake-X and Skylake-X platforms, respectively, and all speeds above Intel’s certified speeds require overclocking. This means, it'll most likely run at stock speeds, and you'll most likely have to adjust the speeds manually. Which still wouldn't guarantee you'd hit those clock speeds. 
     
    I'd personally pick up a quad channel stick if you'd need to and sell the two dual channel kits. 
    #3
    jpanda
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    Re: x299 dark and mixed speed modules quad or dual 2018/07/11 12:20:21 (permalink)
    Most motherboards have a Qualified Vendor List and I would advise to get a memory from that list to avoid problems.

    |i9 7900x|Asrock Fatl1ty X299|Corsair 128 GB DDR4 3466Mhz|EVGA 1080Ti SC2|EVGA G3 850W|1xNVME 960 Pro 1TB|2xNVME 970 EVO 500GB |EVGA CLC 280|X71 Thermaltake|
     
     
     
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    EVGATech_AdamB
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    Re: x299 dark and mixed speed modules quad or dual 2018/07/11 14:40:13 (permalink)
    jpanda
    Most motherboards have a Qualified Vendor List and I would advise to get a memory from that list to avoid problems.


    And you can find that QVL list at the link here: https://www.evga.com/support/motherboard/  

    Have a moment? Please rate our service 
    #5
    TiN_EE
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    Re: x299 dark and mixed speed modules quad or dual 2018/07/12 21:06:43 (permalink)
    fenice19
     
    You can mix memory modules on board, however like above mentioned, it is not recommended/fastest configuration. This means that it's up to you to fine tune the settings and testing stability/performance. Keep in mind that any XMP over 2400/2666MHz is still overclocking, with everything that comes with it ;). Technically there is no additional limitations applied to mismatched memory modules, if all memory sticks can do the speed/timings then it does not matter what sticker is on the module. Buying memory in kits just means that all that testing and verification was done by memory vendor for you, but nothing stops you from doing the work yourself.
    #6
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