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  1. #1
    AwardFabrik Kernel
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    Avatar von SoF
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    03.10.1985
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    Standard SandyBridge CPU binning

    Hi,

    thought I'd post my findings with 5x 2600K here. First the CPUs:

    [IMG]http://img525.imageshack.us/img525/2953/8cpus.jpg[/IMG]

    [IMG]http://img828.imageshack.us/img828/7171/pymide1s.jpg[/IMG]

    [IMG]http://img573.imageshack.us/img573/2320/2500kshot.jpg[/IMG]

    [IMG]http://img832.imageshack.us/img832/6669/sealedc.jpg[/IMG]


    The results of 5 CPUs (4C/8T):

    1 bad CPU

    47x100 ~without internal PLL voltage override
    50x100 ~1.48V no boot with PLLv tweak

    1 ok CPU

    49x100 ~1.38V without internal PLL voltage override

    3 good CPUs
    50x100 ~1.38V without internal PLL voltage override

    For finding good CPUs you need 50x100 with 1.4V or less booting without pll overvoltage then your chip has potential I would say. For all day find chips that run cool - I had differences of 5-10°C per Chip with same paste and cooler. But the cooler chips didn't ran that well

    Batch of all 2600K I had: L040B165


    regards
    SoF
    Geändert von SoF (09.01.2011 um 14:16 Uhr)
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  2. #2
    AwardFabrik Crew
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    Avatar von Chrisch
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    07.01.2007
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    3.156

    Standard

    and i got the bad one

    but you´re right, i test all CPUs first with disabled internal pll overvoltage and if it can boot 5GHz 4C/8T @ ~1.35-1.4v then is it a good CPU with more capability

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