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Thread: UD7 rev1.0 Around we go again - i920 OC




  1. #121
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: UD7 rev1.0 Around we go again - i920 OC

    An 80mm or 120MM fan sitting on your graphics card and angled to blow into the IOH heatsink really helps with temps and often stability, so you might want to give that ghetto setup a try and see if it helps!

  2. #122
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    Default Re: UD7 rev1.0 Around we go again - i920 OC

    hey lsdmeasap.. was that directed to me? considering i've seen x58 ioh's run at 65+.. i thought 53 was still ok.

    i can't get anywhere near the qpi/vtt of giggabyte on my chip.. in fact i'm beginning to think i've got one from a bad bin. I can get to 4Ghz ok'ish and seems stable but the temps are up. running on 210bclk does seem to be easier compared to finding stable on 20x but i'm still playing..

    currently considering getting another chip and seeing mine.
    GA-X58A-UD7 rev1.0 - F9d // Intel i7 920 D0 @ 4.2Ghz - //vcore:Normal(1.2430v)+DVID+0.07500v//qpi_vtt:1.380v//bclk:200*21(turbo)
    6GB Corsair Dominator 1866 @ 1600 (9-9-9-24-2T@1.65v)


    CPU-Z Results: http://valid.canardpc.com/show_oc.php?id=2212669



  3. #123
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: UD7 rev1.0 Around we go again - i920 OC

    Well I just mentioned it, I saw someone saying some of the IOH temps were high on the last page. Ya, they do run hot by default, and it can cause errors when overclocking. I used to not use a fan, and then once I tossed one up there it was so much easier to stabilize overclocks, so I think how hot it gets does affect overclocking and stability even if it doesn't always cause errors directly.

    It's been so long, but I think mine would be around 55-60+ and then stayed at 38-42 with a fan blowing on it, and it made tweaking and testing for stability at high overclocks much easier to get going.

    All the 1366 CPU's I've used needed high QPI/Vtt too, don't worry about what the lucky ones say who only need 1.1-1.2 QPI/Vtt it's not the norm for sure. Most of mine need 1.3-1.45+ for 1600 depending on the timings, and I've never had an issue with that, some CPU's just need moar volts!! :)

    20x CPU multi Ahhh! I hate the even multi's, but much like voltages, even multi's causing issues is CPU specific too, and I see many CPU's hate even multi's

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    Default Re: UD7 rev1.0 Around we go again - i920 OC

    lovin' the one-offs being pushed as the rule .....

    so whats your *trusted* opinion... 19x multi and move the BCLK.. or use x20/x21?
    GA-X58A-UD7 rev1.0 - F9d // Intel i7 920 D0 @ 4.2Ghz - //vcore:Normal(1.2430v)+DVID+0.07500v//qpi_vtt:1.380v//bclk:200*21(turbo)
    6GB Corsair Dominator 1866 @ 1600 (9-9-9-24-2T@1.65v)


    CPU-Z Results: http://valid.canardpc.com/show_oc.php?id=2212669



  5. #125
    Lsdmeasap's Avatar
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    Default Re: UD7 rev1.0 Around we go again - i920 OC

    To be honest there have been more good CPU's lately, that only require little voltages, but I've never ran into one myself :) And you'll more often will see users asking for help tuning, tweaking, ect with voltage hungry CPU's - like we have :)

    On 920 CPU, yes I always use 21 or 19, but that's because I never had any CPU's that like even multi's, but even if I did I'd use 19 or 21 just because everything else is easier for me that way.

    I have used used 920 x 2, W3520, 965, 980X, 990X and they all hated even CPU multi, and all required above average QPI/Vtt for tight memory timings and high uncore except the 990X. It was decent for lower Vcore and could do 5Ghz under 1.43, QPI/Vtt was a little better on that but nothing like only needing 1.1x-1.2, always needed 1.25-1.3x at least... but sadly it lost three cores while idling one day during my OC review testing, so it sits unused at the moment
    Last edited by Lsdmeasap; 02-01-2012 at 06:00 PM.

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    Default Re: UD7 rev1.0 Around we go again - i920 OC

    found that ScanUK are selling 920s: Intel i7 920 CPU - AT80601000741AA - Scan.co.uk

    really considering getting another one... their price for 960 is good.. but can't bring myself to waste money on a chip that i can easily OC past.
    GA-X58A-UD7 rev1.0 - F9d // Intel i7 920 D0 @ 4.2Ghz - //vcore:Normal(1.2430v)+DVID+0.07500v//qpi_vtt:1.380v//bclk:200*21(turbo)
    6GB Corsair Dominator 1866 @ 1600 (9-9-9-24-2T@1.65v)


    CPU-Z Results: http://valid.canardpc.com/show_oc.php?id=2212669



  7. #127
    Lsdmeasap's Avatar
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    Default Re: UD7 rev1.0 Around we go again - i920 OC

    That's odd, are they used or refurbs? I only see 930 or higher here anymore, unless you look on forums or ebay.

    If I were buying a new chip, I'd got for 920 and look in forums and ebay. Mainly looking on forums because you can better ask about CPU overclocking abilities or look up what the user has done with the CPU in the past, but look at ebay first too in case of killer buy it now deals no matter what is known about the chips :)

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    Default Re: UD7 rev1.0 Around we go again - i920 OC

    scanuk only ever sell new stock unless posted otherwise.. so i'm guessing new.. no idea from where though... interesting enough they advertise them as ready to OC @ 4Ghz
    GA-X58A-UD7 rev1.0 - F9d // Intel i7 920 D0 @ 4.2Ghz - //vcore:Normal(1.2430v)+DVID+0.07500v//qpi_vtt:1.380v//bclk:200*21(turbo)
    6GB Corsair Dominator 1866 @ 1600 (9-9-9-24-2T@1.65v)


    CPU-Z Results: http://valid.canardpc.com/show_oc.php?id=2212669



  9. #129
    Lsdmeasap's Avatar
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    Default Re: UD7 rev1.0 Around we go again - i920 OC

    Cool, they must have came across a good deal on someones old stockpile.

  10. #130
    GiggaByte is online now Member
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    Default Re: UD7 rev1.0 Around we go again - i920 OC

    Are you sure you want to spend money for the same CPU, to either get the same overclock with some better volts or the same volts for 200-300MHz more..? Theres that good old chance too it could scale the same as the one you have now or even worse.. How about a cheap(much less than release price) Golftown or wait for Ivy Bridge release? Im still considering a Golftown myself if I could find one that isn't overpriced..

    The i7's don't hate "even" multipliers as most of them are just fine at x12/x13/x14/x15/x16/x17/x18/x19/x21 as mine is too (interesting there isnt any way to force the x22 to all cores), the x20 reacts to more vcore for a little then hits a roof where it don't care anymore, so far the biggest reacting setting(s) is CPU PLL and clock drive, every 0.100v reduction to CPU PLL till the minimal 1.300v is reached gives a large improvement in test duration, 1.3v almost gets it there but not quite and not a single other setting seems to do anything to it. Someone had a theory that the instability comes cause it wasn't "designed" to run at x20 anyway, it constantly wants to turbo to x21 but with turbo off its locked at x20 and then.. panic. Which is the most theory I heard that makes sense as that is all PLL activity and PLL is whats affecting it greatly.. but then theres those that run at it fine, a large chunk of them seem to be Asus P6T owners (at stock CPU PLL since they can't undervolt it) which makes me think again and wish I had one to try, I notice there is some other CPU settings in their BIOSes one I believe which is "A20M" something to do with overriding the internal CPU current control limit which sounds similar to Sandy Bridge "PLL Overvoltage".. hmm the wonders..

    For IOH also try undervolting it, I have mine undervolted as well as the ICH (core not I/O) cause it does absolutely nothing for max PCI-E, max QPI, or max BCLK. Nothing at all not even a little bit between undervolted, stock, and up to 1.26v. Might as well run it low and save 1-2c and a tiny bit of power. At stock 1.10v my IOH has always been at a max of 47c but usually at 45c, with the undervolt its usually at 44c I was amazed how cool it always been for me on this board and I still haven't replaced the stock crap TIM on the board heatsinks yet. But the IOH is rated to 100c. I either have the world's best IOH or it just really does pretty much nothing for clocking and people are just tossing mad volts like 1.3v+ at it for X reason..
    Last edited by GiggaByte; 02-02-2012 at 12:40 AM.

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