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Thread: **Official e8400/e8500 Retail OC Thread

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  1. 02-04-2008, 11:20 AM #1
    unclewebb
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    Quote Originally Posted by mc2k View Post
    Is it true that the max FSBv u may apply for these chips is 1.15v? cause I have my FSBv @ 1.40 now, so it worries me abit oO
    That is the official Intel spec but nobody around here ever listens to stuff like that.

    http://download.intel.com/design/pro...s/31873201.pdf
    2.6 Voltage and Current Specification pg.17

    The Absolute Maximum for FSBv is 1.45 volts but anything beyond 1.155 volts is beyond spec.
    Last edited by unclewebb; 02-04-2008 at 11:29 AM.
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  2. 02-04-2008, 11:59 AM #2
    l3fty
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    Quote Originally Posted by unclewebb View Post
    That is the official Intel spec but nobody around here ever listens to stuff like that.

    http://download.intel.com/design/pro...s/31873201.pdf
    2.6 Voltage and Current Specification pg.17

    The Absolute Maximum for FSBv is 1.45 volts but anything beyond 1.155 volts is beyond spec.
    My box says 1.225v max, or is that reffering to the CPU VTT?
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  3. 02-04-2008, 01:12 PM #3
    unclewebb
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    Quote Originally Posted by l3fty View Post
    My box says 1.225v max, or is that reffering to the CPU VTT?
    On your Intel CPU box you will see the recommended CPU voltage for your chip. FSB Termination voltage is different and is set in the bios.
    Last edited by unclewebb; 02-05-2008 at 02:55 PM.
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  4. 02-04-2008, 01:34 PM #4
    WiTcHkInG
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    Ive got a Q750A032 E8400 which seems very poor so far.
    Failed prime after 20mins @ 4Ghz with 1.45v
    Will start again with lower volts and play about with the GTL volts a bit.

    How high is it advisable/safe to go to with NB volts to test max fsb?
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  5. 02-04-2008, 02:04 PM #5
    karateo
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    Quote Originally Posted by WiTcHkInG View Post
    Ive got a Q750A032 E8400 which seems very poor so far.
    Failed prime after 20mins @ 4Ghz with 1.45v
    Will start again with lower volts and play about with the GTL volts a bit.

    How high is it advisable/safe to go to with NB volts to test max fsb?
    post your settings on the DFI thread to try help each other find 24x7 settings
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  6. 02-05-2008, 11:14 AM #6
    WiTcHkInG
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    Quote Originally Posted by karateo View Post
    post your settings on the DFI thread to try help each other find 24x7 settings
    Well i have not got any settings really, just been going about it kinda half arsed so far.
    Probably why its not going well

    Tried your settings from Dfi club with no luck.
    Will read through the dfi thread and look for ideas.
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  7. 02-05-2008, 11:55 AM #7
    mrcape
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    Q745a576

    9x445 | 5:6 with low voltage settings

    Last edited by mrcape; 02-05-2008 at 06:42 PM.
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  8. 02-04-2008, 12:45 PM #8
    CERO
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    Quote Originally Posted by unclewebb View Post
    That is the official Intel spec but nobody around here ever listens to stuff like that.

    http://download.intel.com/design/pro...s/31873201.pdf
    2.6 Voltage and Current Specification pg.17

    The Absolute Maximum for FSBv is 1.45 volts but anything beyond 1.155 volts is beyond spec.
    Thnx
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