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Thread: e8500 @4.3Ghz not orthos stable yet?




  1. #11

    Default Re: e8500 @4.3Ghz not orthos stable yet?

    Quote Originally Posted by morph View Post
    VTT is too high. You shouldn't use more than 1.4V, and even that high I don't think it's necessary. Try changing that to 1.24V-1.32V and test each one for stabillity.
    Yep, set the CPU Term manually to around 1.24. I don't think Psycho101 meant to say "Auto sets this correctly" for this setting.
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  2. #12
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    Default Re: e8500 @4.3Ghz not orthos stable yet?

    As said, definately lower CPU Termination. The range between 1.22 and 1.32 is likely all that's needed. As per the template I wrote, start with 1.24V and work up onje step at a time if not stable.

    Also, you're not stable yet. A minimum of 8 hours Orthos, but ideally 12-24hours would be stable. Like Capt Proton said, instability can cause RAM corruption, which can cause file corruption, which can cause Windows to bork. I too have had instances where I'm 12 hour prime stable, yet large .rar files (known to be good) always extracted with a corruption error.

    If it passes at least 8 hours, with CPU Term significantly lowered from what you have now (1.5V is dangerous, 1.4V is bearable and 1.45 is the absolute pushing the envolope maximum) then you'd be ok to try tRead = 8. If you have a copy of memset, apply tReads in Windows to test their stability. 95% of the time, setting a tRead too low with memset causes a system hang. Setting the next value up from the one that hangs is usually stable.
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  3. #13
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    Default Re: e8500 @4.3Ghz not orthos stable yet?

    Quote Originally Posted by morph View Post
    VTT is too high. You shouldn't use more than 1.4V, and even that high I don't think it's necessary. Try changing that to 1.24V-1.32V and test each one for stabillity.
    Ok thanx for the heads up i will turn CPU Term to 1.24 and see if stable. will this also affect temps?
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  4. #14
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    Default Re: e8500 @4.3Ghz not orthos stable yet?

    VTT won't effect temps. What too much VTT will do is kill your CPU faster than any high temps or a too high Vcore (within reason, obviously a 2.0Vcore on air cooling will probably kill it pretty fast).
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  5. #15
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    Default Re: e8500 @4.3Ghz not orthos stable yet?

    Quick Update...


    1.)Set CPU Term manually to 1.200
    2.)MCH Ref to 0.720
    3.)CPU Term manually to 1.24
    4.)MCH Successfully scaled to 0.745 which is good because before it scaled MUCH higher. Will begin testing and post soon again thnx for all the help keep it comin
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  6. #16
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    Default Re: e8500 @4.3Ghz not orthos stable yet?

    ok guys bad news.....
    i tested every possible combo with the cpu term and mch but no stability. now i can't even use the settings i had yesterday with the 1hr stability. i guess i just got lucky . well now i'm back to square 1 and stumped. Should i just try lower oc ? like 4.25 or 4.27. plz help. these are settings i'm using in bios now.

    CPU Vcore 1.32500v
    CPU Term Auto- sets it to 1.500v
    CPU PLL 1.500v
    CPU REF Normal

    MCH Core 1.240v
    MCH REF 0.910v
    MCH/DRAM Ref Auto
    ICH I/O 1.500v
    ICH Core 1.100v

    DRAM Voltage 2.100
    DRAM Term Auto
    Chan A Ref Auto
    Chan B Ref Auto
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  7. #17
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    Default Re: e8500 @4.3Ghz not orthos stable yet?

    I'd add some more Vcore. Set to 1.35V with LLC enabled, and re-test VTT 1-22V-1.40V.

    I see in the screenshot you're still running 1.5V VTT. DOn't set auto, it's dangerous. I'd never set 1.5V, not even for a quick benchmark.

    Also try raising and lowering MCH core by a little bit again. You'd probably benefit from more PLL voltage too. Set any value up to 1.61V, and test.

    If it's failing small FFT's it's more likely yo be Vcore, Pll or VTT.
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  8. #18
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    Default Re: e8500 @4.3Ghz not orthos stable yet?

    Update good news...
    ok adjusted a few settings and got another 1 hour stable in orthos, hopefully it's not just another "lucky" run. here are the settings now.

    CPU VCORE 1.35000V
    CPU TERM 1.220V
    CPU PLL 1.610V
    CPU REF NORMAL

    MCH CORE 1.280
    MCH REF 0.732
    MCH/DRAM REF AUTO
    ICH I/O 1.500V
    ICH CORE 1.100V

    DRAM VOLTAGE 2.100
    DRAM TERM AUTO
    CHAN A REF AUTO
    CHAN B REF AUTO

    I will continue to run orthos with these settings to be sure. Any suggestions?

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  9. #19
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    Default Re: e8500 @4.3Ghz not orthos stable yet?

    Be sure to test for 8 hours or more, preferably a minimum of 12 hours on Blend.

    On the subject of my initial table of setings... After reading grampamu's post that I didn't intend to say VTT should be auto I looked at my original post, sure that I didn't state that. However, when looking at my table of settings, sure enough it had "Auto sets this correctly" next to it. Oops, my mistake, I thought. I hit edit to delete the comment next to VTT so nobody else tried to put it on auto.

    To my surprise, in the edit box, that comment wasn't next to VTT, it was next to |CP|U Ref. CPU ref line was missing in the actual post, but present in the edit box. Wierd..... I decided to remove the comment anyway, and save. Now the forum decides to place my comment for MCH core next to VTT and remove the actual MCH Core line from the visible post.

    Has anyone else come accross this? I can't really see it being anything more than a forum bug. I've encountered similar instances where the posted comment formats wrongly, and isn't visible as intended. In these occasions I'm sad to say I just gave up posting in that thread because I couldn't say what I needed to.

    If it's a problem with not using Internet Explorer, then the issue needs fixing. I use Google Chrome, and there's no way I'm touching IE sh1t. It's about as secure as a cardboard padlock, and as fast as a slug on Valium.
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    Core i5 760 @ 20 x 201, 4.02GHz
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    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
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    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
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