Official Intel Haswell (K) Overclocking thread

Discussion in 'Processors and motherboards Intel' started by -Tj-, Jun 7, 2013.

  1. Cry

    Cry Master Guru

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    Now able to use my sound card with the new Asus 0801 BIOS for the RVE
     
  2. dove

    dove Master Guru

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    Still getting those glitches even with the new settings.

    I suspect it may be connected to the PCI SATA card I put in recently (Via VT6421A chipset). I did this because my Samsung HD204UI 2TB HDD was having trouble spinning up and I was advised that the Intel chipset on my Z97-A might have problems with this particular drive. It seems a bit strange that such a common drive would have such a problem with a common chipset but I certainly haven't had the problem since connecting it to the ViA card but I can't put up with these glitches either, so I might just have to buy a WD Red to replace the Samsung HDD :bang:
     
  3. Fender178

    Fender178 Ancient Guru

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    Well I thought my 4.7 ghz Oc with 1.26V was stable but when went to rip a Blu-ray movie for my sister to put on her tablet I got a blue screen of death during the process. Also I have been having a weird issue while Windows is trying to load my PC shuts down and I have to turn it back on again. Which makes me believe that my CPU OC was causing it because it happens once every other day which means I do not think it is my PSU because it would be happening more often.
     
  4. -Tj-

    -Tj- Ancient Guru

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    If it WMEA 0x124 then yes need more cpuv., 1.26 then try 1.265v, also add more cpu current 120% (digi+), ram current 110% just to be safe and more cache voltage if you're using manual adaptive, extra vccsa - cpu system agent can help too 0.040v+ offset is a good middle ground at higher OC 4.6ghz+.

    And higher Vccin input voltage or eventual by some ROG mobos, I noticed the newest bios made less aggressive LLC- auto load on vccin, now its best to be at exact 0.5v ratio. 1.265v then use vccin @ 1.77v.
     

  5. SpecChum

    SpecChum Master Guru

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    Remind me again why I disabled that SVID communication thing? Can't say I've noticed a difference apart from the correct wattage not being reported.

    What does it actually do?
     
  6. Fender178

    Fender178 Ancient Guru

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    Thanks for your help but I am just going to leave my CPU @ 4.4ghz. It is plenty fast enough to fit my needs and it is a massive increase from my previous CPU. I may try it again someday but not right now.
     
  7. -Tj-

    -Tj- Ancient Guru

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    With VR fault management It prevents voltage tripping @ integrated cpu VRM's, combined with SVID - input voltage disabled it can also lower main cpu temperature and enhance cpu OC.


    http://rog.asus.com/254052013/maxim...ngs-for-overclocking-maximus-vi-motherboards/


    *Frequency tuning is also interesting and helps by stability 1-2%, but it will heat more.

    **Same for these two, input regular, output fast.

    ^
    But these 2 tweaks are only for higher OC 4.7ghz+
     
  8. SpecChum

    SpecChum Master Guru

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    Ah OK.

    I'll leave it off then. Not that my OC is extreme in any way.
     
  9. SpecChum

    SpecChum Master Guru

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    Reading on-line and getting contradicting info.

    My question is:

    I've currently got my UNCore on the default 3.9Ghz, is it worth trying higher? Tips for doing so, if it's worth it?
     
  10. k3vst3r

    k3vst3r Ancient Guru

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    4.2 is around the sweet spot, going more doesn't really do much
     

  11. SpecChum

    SpecChum Master Guru

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    Okey dokey. I'm assuming I won't need too much voltage for that small increase?
     
  12. SpecChum

    SpecChum Master Guru

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    Will too low an Uncore limit the max core OC?

    For example, I'm quite surprised that given I can do 4.6Ghz stable @ 1.215v I can't seem to get 4.8Ghz stable even at 1.29v.

    I know every CPU has it's limits, and 4.6Ghz could be this ones' limit, but could, theoretically, increasing Uncore increase the chances of the core going higher?
     
  13. -Tj-

    -Tj- Ancient Guru

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    No, higher uncore will limit it further.. Judging by your low 4.6ghz voltage I would say uncore 4.2ghz needs ~ 1.14v adaptive.


    For cpu OC 4.8ghz I think you will have to raise up 1.32 -1.36v. What do you need for 4.7ghz?
     
  14. SpecChum

    SpecChum Master Guru

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    Didn't even really try too hard on 4.7Ghz to be honest, went straight to 1.25v and it crashed Prime95 after about 10 minutes so I figured it can't be a million miles away so went right for 4.8Ghz. Tried 1.29 and again, booted fine, but prime crashed.

    I did all that in about 10 minutes, it wasn't a serious effort.
     
  15. -Tj-

    -Tj- Ancient Guru

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    I think 4.7ghz would need ~ 1.27 - 1.284v, 4.8ghz ~ 1.335 -1.35v..
    1.35v is still "safe" for Devils Canyon


    Also try realbench2 multithreaded benchmark part, it will stress more then prime and heat less.
     

  16. SpecChum

    SpecChum Master Guru

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    Yeah, forgot to mention I'm on adaptive voltage so even tho the VID is 1.214 it does rise to 1.224 in prime. 1.232 when on that weird AVX version, but I don't use that now.
     
  17. SpecChum

    SpecChum Master Guru

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    Cool, thanks, will give 4.8 a good try one night this week.

    It did boot at 1.29 and prime did run, so I might even need 1.31- 1.33.

    Never know :)
     
  18. SpecChum

    SpecChum Master Guru

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    OK, currently running at 4.2Ghz uncore now. Booted, which is always a good start lol

    Left voltage on auto, seems to be 1.2v
     
  19. SpecChum

    SpecChum Master Guru

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    Wow, goes to 1.280 when under load.

    Er, I think I need to get that off auto haha

    It is "ring" voltage I'm looking at, right?
     
  20. -Tj-

    -Tj- Ancient Guru

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    yes,

    1.15v is more then enough.
     

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