Corsair RAM XMP or not?

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  1.    21 Feb 2017 #61

    I am thinking about buying 32 GB of RAM. all together, and thus matched.
    my motherboard has 4 memory slots.
    would I be smarter to buy 4 8 GB sticks, or 2 16 GB sticks?
    (I don't think I will be wanting to increase higher than 32 GB.)
      My ComputerSystem Spec

  2.    21 Feb 2017 #62

    Cliff S said: View Post
    The nice thing with my MSI Z170A is, XMP has only one single profile, then there is "Memory Try It!" if you want to try other settings, but they are at least separate settings, and you are suppose to shut XMP off when using it.
    Yeah, that's how it is on both my Gigabyte Z87 and Z170X boards, but instead of Memory Try it, I have Memory Overclocking Profiles (Z87 board - blue).

    Gigabyte GA-Z170X-Gaming GT board. On this board XMP is disabled and my RAM speed is set to 3333MHz, which is also what XMP would set it to were I to enable it. Had I not set the speed here, with XMP disabled, the RAM would have defaulted to 2133MHz. I like to manually set my RAM specs to keep voltages at a minimum.
    Click image for larger version. 

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    Gigabyte G1 Sniper 5 board... Here XMP is enabled, and the RAM is running at 1866MHz, which is what XMP set it to. Were I to disable XMP, the RAM would default to 1333MHz, and I would have to manually set it to 1866. BTW manually setting the RAM's spec's means setting speed, timings, and voltages.
    Click image for larger version. 

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    Here's a list of the Memory Overclocking Profiles you could use outside instead of XMP (this is on my Z87 Haswell board)....

    Click image for larger version. 

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    On this board (Z87), none of those profiles will work (at least the system won't be stable) because those profiles are spec'd above the installed RAM (this is where good overclocking RAM comes into play). I'm running 1866MHz RAM, but as you can see, all those profiles are spec'd above 1866MHz.

    Seems my Z170X board doesn't provide overclock memory profiles like the Z87 does...
    Click image for larger version. 

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    Hope this helps/clears things up :)
      My ComputerSystem Spec

  3.    21 Feb 2017 #63

    chasmanian said: View Post
    I am thinking about buying 32 GB of RAM. all together, and thus matched.
    my motherboard has 4 memory slots.
    would I be smarter to buy 4 8 GB sticks, or 2 16 GB sticks?
    (I don't think I will be wanting to increase higher than 32 GB.)
    It kind of depends on a few things, but in keeping things simple, it would be better to get 2 16-gig sticks than 4 8-gig sticks as you're maxing out all the memory slots, and the CPU has to access 4 slots as opposed to 2 slots.

    That said, with today's boards, it shouldn't make a difference. I myself use all 4 of my DIMM slots for memory - I've got 4 8-gig sticks. If I had to do it again, I'd probably go 2 16-gig sticks. Either way should be fine.
      My ComputerSystem Spec

  4.    21 Feb 2017 #64

    you rock!!!
    thank you very much!!!! !
      My ComputerSystem Spec

  5.    21 Feb 2017 #65

    chasmanian said: View Post
    thank you very much for your reply.
    I have been told to buy it all at once, together.
    I fully agree it’s best to buy all the RAM you want together, but I don’t think I’ve ever added RAM that was in the same “matched set” and my previous build I added RAM a year after the initial build.

    For this latest build, when you take all the manufacturing and distribution variables into consideration a truly “matched set” of two separate boxes of RAM might be unlikely. By the time the memory modules are put into their retail boxes and go through the various channels of distribution and make it to the retail shelf whether two separate boxes of the same memory, 2x8GB for example, on the retail shelf are a “matched set” is anyone’s guess even if bought at the same time. It could well be that the two boxes were manufactured a month apart depending upon how long one box sat on the shelf and a new shipment was then added to stock.

    The two boxes of RAM I bought may not have been a “matched set” but all we can do is rely upon buying RAM of the same CMxxxx number and hope that they are modules that do meet the industry JEDEC quality standards.
      My ComputerSystem Spec

  6.    21 Feb 2017 #66

    sygnus21 said: View Post
    It kind of depends on a few things, but in keeping things simple, it would be better to get 2 16-gig sticks than 4 8-gig sticks as you're maxing out all the memory slots, and the CPU has to access 4 slots as opposed to 2 slots.

    That said, with today's boards, it shouldn't make a difference. I myself use all 4 of my DIMM slots for memory - I've got 4 8-gig sticks. If I had to do it again, I'd probably go 2 16-gig sticks. Either way should be fine.
    I did the same and would rather have 2 16GB sticks in case I'd like to go to 64GB later but doubting that I'll live with all 4 slots filled.
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  7.    21 Feb 2017 #67

    thank you for both excellent replies.
      My ComputerSystem Spec

  8. AddRAM's Avatar
    Posts : 2,166
    Windows 7 Pro x64 Windows 10 Pro x64
       22 Feb 2017 #68

    You have Corsair ram, all you have to do is buy another set of exactly what you have now, (same cas latency numbers, same speed) and you`ll be fine. Hopefully you kept the box :)

    16 GB 2 x 8 Vengeance LPX Series

    32 GB Vengeance LED CORSAIR VENGEANCE(R) LED Series DDR4 Memory Upgrade Kits — Stunning LED lighting and superior overclocking, all-in-one.


    If you had the money to spend then of course you could just buy a new 32 GB set of Dominator Platinum or Trident Z, and sell what you have now.

    All you need now is an EVGA 1080 :)

    EVGA - Intelligent Innovation - Official Website
    Last edited by AddRAM; 22 Feb 2017 at 18:29.
      My ComputersSystem Spec

  9.    22 Feb 2017 #69

    AddRAM, thank you very much.
    I really like the idea of buying more RAM.
    but I thought that I should only do it, if I get a whole 32 GB together all at once, so its a matched set.
    if I'm wrong, please tell me.
    I like the idea of leaving the 16 GB that I already installed alone.
    buying 2 more 8 GB sticks is not super expensive.
    buying 32 GB more is a little pricey.
    I am all ears, to your thoughts.
    as for a video card, I do not need any more than the Integrated Graphics HD 630 that came with my CPU.
    my computer is for music. I'm using the HDMI connector to a Samsung TV. the picture is just fine.
    I do wonder one more thing, though.
    the PCIe x4 slot on my motherboard?
    can I just get an M.2 adapter, and install another M.2 SSD? (I guess my newbie-ness shows with THAT question.)
      My ComputerSystem Spec

  10. AddRAM's Avatar
    Posts : 2,166
    Windows 7 Pro x64 Windows 10 Pro x64
       22 Feb 2017 #70

    Like I said, you can buy 2 more of what you have now and you`ll be fine, you can even use different colors if you wanted to.

    I had a black vengeance set and a blue set on my black and blue MSI board and it looked great.

    Your cheapest option until you can afford a 4 x 8 GB set is to get 2 more LPX, as long as the numbers are the same, you`re fine.

    But you need to ask yourself, do you really need another 16 GB ???

    $300 for this 32 GB set, yes memory is expensive.

    VENGEANCE(R) LED 32GB (4 x 8GB) DDR4 DRAM 3200MHz C16 Memory Kit - White LED (CMU32GX4M4C3200C16)
      My ComputersSystem Spec


 
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