Noctua NH-C14 arrives..

Discussion in 'Processors and motherboards Intel' started by isidore, May 10, 2012.

  1. isidore

    isidore Ancient Guru

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    So finally my heatsink has arrived, it's a big ****er:D :
    [​IMG]

    So start OC the 2500k:
    I managed to reach 4.8ghz with the following settings:

    Multi: x48
    VCC : 1.460v
    PLL : 1.9v
    LLC : Extreme
    RAM: 9-9-9-24 1T at 1600mhz with 1.5v

    Max temp after 1h of Prime95 was 79'C on core 1 and 2.
    [​IMG]

    So it's obvious that for reaching 5ghz i have to go over 1.5v and i think the Noctua C14 won't manage temps under 85'C. But for the moment seems fine.

    What you guys think?
     
  2. Corbus

    Corbus Ancient Guru

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    isn't 1.46v high for 4.8ghz? , have you tried to see if its stable with lower voltage? And you should have gotten the D14 instead of the C14 it performs better.


    Also try lowering your PLL voltage, not sure if it helps with temps but i keep mine at 1.586v , try and see how low you can go with it..some have reported BSODS if they went too low.

    As for temps they are pretty good , in gaming you won't probably see anything higher than 67-70
     
    Last edited: May 11, 2012
  3. cowie

    cowie Ancient Guru

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    Well since you asked
    why you bring up pll? for your overclock leave it auto or 1.80 that may help temps.
    what sorta vvt are you using?
    do you try your max multi?
    To test I set 1.495 vcore 1.18vvt and pll auto 50x and see if it boots keep and eye on temps,if it does try 51x fails try more vcore and go to your temps,you could even disable two core if your worried about high boot temps maybe not for 24/7 but just to see your max multi..if it keeps booting past 54x @ 1.54v put water or phase cooling on it :) if it wont boot windows with volts its at its limit
     
    Last edited: May 11, 2012
  4. ---TK---

    ---TK--- Ancient Guru

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    I run my cpu pll at 1.71v for all my profiles it helps with temps slightly
     

  5. bokah

    bokah Ancient Guru

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    u should be able to do 4.8 under 1.4v
     
  6. isidore

    isidore Ancient Guru

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    The vtt is default, 1.05 (if i remember correctly) also the LLC VTT is default.
    I raised the PLL cause some overcloking guides said it improves stability, but they also said not to pass 2.0.I'll try with it default today and see the results.
    I didn't try my max multi, it's x59.

    Well Prime95 gives errors on core 2 and 3 with anything lower then 1.460v. I tried from 1.400v.

    The default PLL is 1.8v, isn't dangerous to lower it under the default value?

    That's what i thought at first. What other voltages can i tweak to make it stable at lower VCC?
     
  7. Corbus

    Corbus Ancient Guru

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    Oh that sucks :( , as for the PLL i had mine at 1.586v since i got it, and usually you risk damaging something when you increase the voltage not lower it. Keep it at the default 1.8v atleast if you don't want to go lower...worst case scenario lowering your PLL might cause instability in overclocking but no way damage your CPU.
     
  8. isidore

    isidore Ancient Guru

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    Yeah it suck, probably this is my chip, i have a friend with a 2700k and his cpu is stable at 4.5 with 1.260v by comparison mine at 4.5 was stable with 1.350v.
     
    Last edited: May 11, 2012
  9. cowie

    cowie Ancient Guru

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    If you are at standard llc 1.45v set is under 1.40v load real
    .i think 3-4 for high-ultra high set 5 forextreme its around real to set volts with extreme
    thanks to sin0822 for list
    [​IMG]

    As for you max multi,59x is the highest the board can set not what your chip can do.
    sb has got a limit on how high it can boot at most avg. chips 51x to 53x.
     
  10. isidore

    isidore Ancient Guru

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    It's on extreme, anything lower (like turbo) i get error in prime95.

    Yeah i realized latter what you where referring to.:)

    edit:
    I've lowered the PLL voltage to default 1.8v the temps didn't change though. Prime95 still stable.
     
    Last edited: May 11, 2012

  11. bokah

    bokah Ancient Guru

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    was thinking taking pics from bios, but thats a nogo atm

    i will fill in most settings for u, but i warn u, its no where near perfect

    works atm
     
  12. bokah

    bokah Ancient Guru

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    GPU:
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    advanced cpu settings

    cpu pll overvoltage: enabled
    real time ratios in OS: disabled
    intel turbo boost: disabled

    C1E: enabled
    c3/c6: disabled
    cpu thermal monitor: disabled
    EIST: disabled
    bi-tech: disabled


    advanced voltaget settings

    multisteps load line: LVL4
    LLC: enabled
    cpu vcore (1.360): 1.3750

    rest is on auto


    just noted that its not prime stable neither, maybe bcos cpu fan wasnt topping speed, but still gaming stable for months

    newest bios for this board changed a lot
     
  13. isidore

    isidore Ancient Guru

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    What's your overclock with does settings?
    I sliced 10'C of in Prime95 by lowering my OC to 4.6ghz with vcc 1.380v. Think i'm gonna keep it like this for the moment.
     
  14. bokah

    bokah Ancient Guru

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    its on 4.8 now

    for 4.4 or 4.6 this would need under 1.32v, maybe 1.26 or so
     
  15. isidore

    isidore Ancient Guru

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    i see, i'm going for full stability, even prime, event though an error in prime doesn't mean stability issues in games.
     

  16. ---TK---

    ---TK--- Ancient Guru

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    Please do not share setting not p95 stable, not very good advice IMO and every sing CPU is different and will require different settings anyway
     
  17. isidore

    isidore Ancient Guru

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    I agree, if it's not p95 stable then it's not a success overclock, plus your risk loosing data cause of system instability.
     

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