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Thread: ex58-ud4p supported ram modules




  1. #1
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    Unhappy ex58-ud4p supported ram modules

    What ram works with this, I've checked the QVL list and it's a bit hard to understand

    What DDR3 ram should I get for this motherboard

    I was looking at OCZ 6GB (3x2GB) DDR3 1866MHz/PC3-15000 Reaper HPC Triple Channel Memory Kit CL9 1.65V (OCZ3RPR1866C9LV6GK)

    Any idea if that will work in it?

    If not, would someone please recommend some that will?

    thanks in advance!

  2. #2
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    Default Re: ex58-ud4p supported ram modules

    http://www.gigabyte.com.tw/FileList/...-ex58-ud4p.pdf
    This is not a board issue.
    Please keep in mind that the I7 has memory controllers. Overvolted RAM May Kill Your Core i7 CPU - Tom's Hardware
    You want your memory to run at a low voltage. 1.65v is the most voltage you want. A lower voltage (like 1.5v) would be better suited for an I7
    You are only allowed 3 pieces of triple channel if over DDR3-1333 So that would be 6GB which is plenty, or 2 pieces of dual channel 1 piece per channel if over DDR3-1333 So if you want 12GB of triple channel,(I don't know what for) you will need to limit that to DDR3-1333Mhz. Also you may need to bump the voltage a little for 6 pieces as aposed to 3 pieces. Which you can find alot of that at 1.5v. Also 3 pieces of ddr 1333 memory will run cooler than 6 pieces and save on power consumption. Corsair TR3X6G1333C9 is what This tutorial used------>
    http://images.tweaktown.com/imageban...2.12_(ENG).pdf
    It's really up to you though. As long as you stay in the guide lines it should be fine.
    Last edited by artdrivers; 07-21-2009 at 02:28 AM.
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  3. #3
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    Default Re: ex58-ud4p supported ram modules

    so If i put that ram in it would only (safely) run at 1333 mhz and not 1866?

    so would it just be better to buy 3*2gb sticks of DDR3-1333?

    or what?

    damn this is confusing.

  4. #4
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    Default Re: ex58-ud4p supported ram modules

    I'm sorry if this is confusing. I am just trying to clarify some things on the QVL
    Please look at the I7 OC tutorial on second to the last page.
    You will see that Corsair TR3X6G1333 C9 will overclock to DDR3-1600@1.5v Look at all that range you will have. Start out low and go up with it. Who knows later on you may find an application for another 6GB's of memory. (although I doupt it)
    If you can find some good ddr3-1866 that runs@1.5v that may be better providing it is backward compliant and doesn't heat things up.
    The voltage of the DDR-1866 may be the killer here for a cool I7. Intel supports DDR3-1333 and no more. The memory controller has to be the reason why.
    Last edited by artdrivers; 07-21-2009 at 03:30 AM.
    http://forums.tweaktown.com/gigabyte...ench-test.html
    http://www.gigabyte-usa.com/FileList...ios_qflash.pdf
    Phenom II 945 @ 3.2Ghz w/Thermaltake Big Typhoon Pro 14 CPU Cooler
    Gigabyte GA-MA78GM-S2H rev.1.1 F11
    Sapphire 3870HD / 100225L / 512MB / ddr4
    4GB / Kingston / KHX8500D2K2/2GN / 5-5-5-18 / 1066Mhz
    (2) WD Caviar / WD2500AAKS/ 250GB in SATA RAID-0
    (1) WD Caviar / WD2500AAKS/ 250GB in SATA AHCI
    (2) IDE's 1 8XdualDVDRW 1 52x32x52x CDRW
    Antec /Neo HE550 / 550W
    Mid size ATX case with show through panel
    2) 80x80 front fans (1) 120x120 rear fan and small nb fan
    Microsoft comfort curve USB keyboard 2000 ver.1.0
    Logitech G500 USB mouse
    Monitor: CMV937A
    7.1+2 Channel High Definition ALC889A
    Dual boot Windows 7 32bit home & Windows 7 64bit home


  5. #5

    Default Re: ex58-ud4p supported ram modules

    Its best if you let us know the i7 processor you have or are looking at.

    Say, if you are looking at a 920, and you don't plan on overclocking it then I would say 1333Mhz (PC10666) is a perfect speed. I say this because you can keep the processors uncore at 2.66ghz, actually keeping your cpu within warranty too.

    If your going a faster i7 chip or planning on overclocking a 920, then its worth considering a faster ram kit, like 1600/1800.

    Even without an over clock your motherboard might need a very specific configuration to run the ram correctly, depending on what kit you get, if it has XMP or not.

    Im using 6gb of 1333 OCZ platinum, which doesn't have XMP Profiling, and needs a very particular bios configuration, but with that configuration set (Manual dram volt at 1.58, manual timing, command rate, manual uncore at 2.66, auto qpi) it runs rock solid, although I am using a 920 C0 and the X58-UD5, but there really is very little difference between our mobo's more or less just heat piping, heh.

    I hope this doesn't add to the thread confusion and helps.



    Edit: actually, the non extreme i7 cpu memory controllers are rated to run at 1066 ONLY not 1333, they are just unlocked to allow faster ram to be used (like 1333/1600/1800), which doesn't cause issue if you up the uncore accordingly (at least double the dram frequency) while keeping all other voltage and related settings set correctly and manually. :)
    Last edited by qwertylesh; 07-21-2009 at 08:44 AM. Reason: typos

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