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Thread: 12GB 980x bang for buck




  1. #1
    Join Date
    Apr 2010
    Location
    Adelaide
    Posts
    39

    Default 12GB 980x bang for buck

    4.2ghz 980x ht on stable on air at 1.325 vcore

    I need 12 gb for audio production and I need some help to optimize

    Before coming here I have done some raiding on this topic, but there are some details I need the experience of this community to interpret...

    Basically I have 12gb dominator 4x3 gb rated for 9 9 9 24 at 1t. I don't feel comfortable with more than 1.375 vtt, and I want to maximize memory throughput.

    The rig is unstable at 1600 999 24 1t with 3000 uncore

    It is certainly stable at 1500 same timings.

    So the question for the community is how can I min max my memory?

    Should I settle for lower frequency at tigher timings?
    Should I drop to 2t command rate and how much will I lose?
    Should I go for uncore speed above all else?

    Many thanks for advice!
    Last edited by Oblique; 09-28-2010 at 05:29 PM. Reason: Clarification

  2. #2
    Join Date
    Jul 2010
    Location
    South Africa
    Posts
    16

    Default Re: 12GB 980x bang for buck

    Can you give more info regarding the memory; brand, frequency, timings, etc

  3. #3
    Join Date
    Apr 2010
    Location
    Adelaide
    Posts
    39

    Default Re: 12GB 980x bang for buck

    Yes the details are:

    980x with true 1x120mm pull fan
    Gigabyte ud-x motherboard eg ud7 have tested others
    Hx1000w corsair psu
    Corsair 12gb dominator 3x4 gb ddr3 9 9 9 24 1600 mem
    Radeon 5970
    5xsata hdd
    1x ssd ocz

    Currently on

    150-160bclk
    Vcore 1.325
    Vtt 1.375
    Pll 1.80
    Qpi 7200
    Uncore 3000
    Ht on all other CPU stuff including turbo off eg c1e, halt
    Ioh 1.28
    Ich 1.2
    Vdimm 1.64

  4. #4
    Join Date
    Feb 2009
    Posts
    58

    Default Re: 12GB 980x bang for buck

    Quote Originally Posted by Oblique View Post
    Yes the details are:

    980x with true 1x120mm pull fan
    Gigabyte ud-x motherboard eg ud7 have tested others
    Hx1000w corsair psu
    Corsair 12gb dominator 3x4 gb ddr3 9 9 9 24 1600 mem
    Radeon 5970
    5xsata hdd
    1x ssd ocz

    Currently on

    150-160bclk
    Vcore 1.325
    Vtt 1.375
    Pll 1.80
    Qpi 7200
    Uncore 3000
    Ht on all other CPU stuff including turbo off eg c1e, halt
    Ioh 1.28
    Ich 1.2
    Vdimm 1.64
    I have a 980x and 12GB of 1600Mhz as well
    why run a higher BCLK than u have to? (I run many benchmarks and it doesn't gain anything, and u paid for an unlocked multi)
    try:
    BCLK=134
    CPU\MULTI=31
    MEM\MULTI=12
    UNCORE=21x (u have a 980x, it's more flexable with uncore)...or go for 24x and get a little better latency
    that will give u:
    cpu at 4.15Ghz, ram at 1608Mhz, uncore at 2800 or 3200 (21x to 24x both ways are 100% stable for me, but test at 2800 for now)
    and I always keep my ram at 1.5v, I up my QPI PLL to 1.3v though (I've found with 12GB u need more QPI PLL, but even overclocking my 12GB to 1800Mhz and 1T; I still keep at 1.5v, just more QPI PLL and/or VTT)
    obviously do everything at 1T, no need to ever go to 2T
    Last edited by shane_p; 01-25-2011 at 02:52 AM.
    RIG#1
    980x @ 4.5Ghz 24/7 under water, dual rads
    Vcore 1.4, VTT 1.35, ram 1.5
    Gigabyte X58 UD9 mobo
    590 GTX under water *700Mhz, 4000Mhz)
    12GB of DDR3
    1x Intel Sata3 SSD
    4x ocz SSD's Raid 0
    Strider 1500Watt PSU
    all in a monster MOZART TX CASE (with 16 fans)
    Winows 7 64 bit

    http://s755.photobucket.com/albums/x.../980x and UD9/



    RIG#2
    Qi7 920 @ 4.2Ghz
    vcore 1.45, fsb 1.4
    XFX 5970
    6GB if DDR3
    5x 2TB HD's
    850watt Antec PSU
    all in a Antec 900 CASE (with 6 fans)
    Antec HTPC Remote
    Windows 7 64bit

    http://s755.photobucket.com/albums/x...0 i7 920 HTPC/

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