DDR3 doesn't like too much voltage on higher speeds ?

Discussion in 'Die-hard Overclocking & Case Modifications' started by djjonastybe, Jun 6, 2012.

  1. djjonastybe

    djjonastybe Master Guru

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    I have DDR3-1333 memory from Corsair XMS3

    When I put 1.6v through them I can get 7-7-6-20 CR1
    But I seem not to be able to reach 1600 no matter how loose the timings are it crashes instantly and my screen goes wacky because I use integrated graphics.

    Now when lowering the voltage everything seems perfectly stable. And I have to say rock stable. And I cannot tighten the timings any further so it's strange.

    Has anyone seen this before ?

    I am trying to get it stable now at 11-11-11-33 CR1 @ 1600mhz

    I loosened tWCL by 2 clocks. to make sure everything would work and it seemed to help so far.

    11-11-11-33 CR1 @ 1600mhz looks stable 20% coverage hci memtest
    10-10-10-30 CR1 @ 1600mhz looks also stable 20% coverage hci memtest
    all at 1.525v DRAM
     
    Last edited: Jun 6, 2012
  2. ---TK---

    ---TK--- Ancient Guru

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    those are some real loose timings for 1600 lol
     
  3. AMD4Sho

    AMD4Sho Master Guru

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  4. k3vst3r

    k3vst3r Ancient Guru

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    probably degraded the IC's by overclocking them
     

  5. Veteran

    Veteran Ancient Guru

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    You need a high voltage to run ram at its highest speed and to keep it stable,i use 1.65v and my ram is running way past its specified speed with no problems
     
  6. cmdrdredd

    cmdrdredd Master Guru

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    I run my Samsung 30nm low profile memory at 1.475v DDR3-2133 10-10-10-28 CR1
     
  7. ---TK---

    ---TK--- Ancient Guru

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    I run my gskill 1600 2t 1.6v at 2133 1.525v 10-11-10-30 1t.
     
  8. JmanEspresso

    JmanEspresso Member Guru

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    GPU:
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    Ive got 16gb of Corsair Vengeance, and its the White Low Profile sticks. 4 4gb sticks.

    They're rated 1600mhz, 1.5v.

    And they will not run a wink over 1600mhz at any voltage, NOR will the timing run any faster than 9-9-9-24.


    Ive read some reviews of this ram that says its wonderful ram, but doesn't take to overclocking. I thought at first running 4 sticks might have been holding me back from getting to 1866 or 2000mhz, but for me, 16gb was better than faster speeds. But then I found out it wasn't me, it was the ram, based on a couple reviews I read in magazines and online.


    Could be the same thing here. I know the Dominator ram overclocks very well, Ive had good luck with those sticks being able to really push them to much higher than rated speeds and still keep the timings tight.
     
  9. Deathspank

    Deathspank Maha Guru

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    my ram came out of a christmas cracker, and rated @800mhz. but there running @1600mhz 8,8,8,22 1.65v 1t all day long. maybe you have a bad stick, have you tried to test each stick by them selfs?
     
  10. ---TK---

    ---TK--- Ancient Guru

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    It running at its rated speed. open up cpuz and you will see 800. x2 thats your 1600mhz:)
     

  11. Deathspank

    Deathspank Maha Guru

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    i can read and add, it says 400mhz. i know what im talking about. ive also had this cracker ram running @2000mhz 9.9.9.24 2t. this stuff is invincible lol.
     
  12. ---TK---

    ---TK--- Ancient Guru

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    You have ddr3 400? That would make it 800 MHz. Perhaps you can post a screenshot??
     
  13. Pill Monster

    Pill Monster Banned

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    Kingston (Hynix chips) 1600mhz @1800Mhz 9-10-9-27 1T 1.5v here.

    I also got some cheap Corsair ValueRam 1333mhz that does 1600 9-9-9-24 1T 1.5 no problem.....

    And yeah like TK said that's some loose timings.....:3eyes:
     
    Last edited: Jun 20, 2012
  14. Deathspank

    Deathspank Maha Guru

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    i shamefully admit i dont know how to upload a screenshot. i know, i know you may flame now lol.
     
  15. Pill Monster

    Pill Monster Banned

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    http://imageshack.us/
     

  16. ---TK---

    ---TK--- Ancient Guru

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    thats a cpuz with actual and spd
     
  17. Deathspank

    Deathspank Maha Guru

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  18. ---TK---

    ---TK--- Ancient Guru

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    Ya said you can read and add bro.
     
  19. Pill Monster

    Pill Monster Banned

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