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Thread: e8400 vcore/fsb problem.




  1. #21
    Chike is offline Senior Member
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    Default Re: e8400 vcore/fsb problem.

    Quote Originally Posted by masslany View Post
    I just remember that i could just set all voltages on auto (excluding vcore which was 1,3) and set fsb 400 (pcie 100) and play. :)
    This may be part of the problem. I have no experience with it myself, but leaving voltages on auto may over volt some of them, like CPU PLL, which from what I have read may cause damage to the CPU, resulting in overclockability issues if not kill it completely.
    I am not saying thsi is what happened, but it might be.

    Quote Originally Posted by masslany
    BTW. I noticed that when i had 1,34v core, the health status displayed
    This is normal, called vdrop, the difference between set up vcore and actual vcore at idle.
    Another drop happens under load, the difference between idle vcore and load vcore, called vdroop.

  2. #22
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    Default Re: e8400 vcore/fsb problem.

    Oh thats the first thing clear i understand in this mess :). That really auto-setting may have caused damage to my cpu, was always what i thought. Then I knew nothing of oc and i gave it a try without asking anyone just from my basic knowledge, and i think now i see the results of leaving most of the voltages on auto. I'd just love to know that change of cpu will end my troubles.
    I would buy you a beer if i know you :). I'm gonna give a try to those mch and cpu references now :)

    PS. What is the answer for the "color font" question? I tried everything. :o update: i typed black and it worked. this font is not black! :)
    CPU: C2D E8400 E0 @3,0 1,35v!
    MOBO:
    Gigabyte EP45-DS3R rev1.0 [bios F11a]
    GPU:
    eVGA 280gtx 1024MB
    RAM:
    2x2GB OCZ 1066 CL5 Heatpipe
    POWER: beQuiet! 700W
    COOL: 3x Scythe Mugen

  3. #23
    Chike is offline Senior Member
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    Default Re: e8400 vcore/fsb problem.

    I think the only way realy is to try another processor with your board, or try the processor in another board that is know to OC the same type of processor without a problem.

    What is the font question you asking about?

  4. #24
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    Default Re: e8400 vcore/fsb problem.

    So for sure i can give my pc to the repair, cause i don't have backup cpu or mobo. I think repair guys will have tools to check what is causing problems.

    And the font question i ment that question when you are posting, to prove you are a human. But i already know the answer :)
    CPU: C2D E8400 E0 @3,0 1,35v!
    MOBO:
    Gigabyte EP45-DS3R rev1.0 [bios F11a]
    GPU:
    eVGA 280gtx 1024MB
    RAM:
    2x2GB OCZ 1066 CL5 Heatpipe
    POWER: beQuiet! 700W
    COOL: 3x Scythe Mugen

  5. #25
    Join Date
    Mar 2010
    Location
    Poland
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    Default Re: e8400 vcore/fsb problem.

    Ok, so i tried a lot of configurations of cpu and mch references, and none of them gave me stable, but with one i almost got into windows with @3,6ghz. That was 1,24vtt, 0,785 cpu ref and 0,705 mch ref. Haven't tried that with @3,2ghz but i think it won't give me load-stable.
    Vcore was all the time 1,35.
    Code:
    Motherboard Voltage Control
    Voltage Type.... Normal
    CPU
    CPU Vcore..........................: 1.35v
    CPU Termination..... 1.200V*.......: 1,24
    CPU PLL....1.500V*.................: 1,570v
    CPU Referen.....0.755V*............: 0,785v
    MCH/ICH
    MCH Core.....1.100V.................: 1.26v 
    MCH Reference..0.800V...............: 0,705v
    MCH/DRAM Ref.......0.900V...........: 1,1v [ easy tune shows 0,9v]
    ICH I/O.....1.550V..................: 1.50v
    DRAM
    DRAM Voltage ....1.800V...............: 2.2v
    DRAM Termination .0.900V..............: 1,1v [ easy tune shows 0,9v]
    Channel A Reference 0.900V............: 1,1v [ easy tune shows 0,9v]
    Channel B Reference 0.900V............: 1,1v [ easy tune shows 0,9v]
    CPU: C2D E8400 E0 @3,0 1,35v!
    MOBO:
    Gigabyte EP45-DS3R rev1.0 [bios F11a]
    GPU:
    eVGA 280gtx 1024MB
    RAM:
    2x2GB OCZ 1066 CL5 Heatpipe
    POWER: beQuiet! 700W
    COOL: 3x Scythe Mugen

  6. #26
    Chike is offline Senior Member
    Join Date
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    Location
    Israel
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    Default Re: e8400 vcore/fsb problem.

    Same 124 BSOD error still?
    You may try higher VTT up to 1.32v, but it may require adjusting the reference voltages again.
    One step up PLL.
    Go back to 3.2GHz, then 2.4 and 3.6 if possible. Some tests may indicate if you need more vcore or not but for that we need windows running.

  7. #27
    Join Date
    Mar 2010
    Location
    Poland
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    Default Re: e8400 vcore/fsb problem.

    I am running windows but on 3,0ghz (7,5x multiplier). I'll try to up vtt and search for best reference.
    CPU: C2D E8400 E0 @3,0 1,35v!
    MOBO:
    Gigabyte EP45-DS3R rev1.0 [bios F11a]
    GPU:
    eVGA 280gtx 1024MB
    RAM:
    2x2GB OCZ 1066 CL5 Heatpipe
    POWER: beQuiet! 700W
    COOL: 3x Scythe Mugen

  8. #28
    Join Date
    Mar 2010
    Location
    Poland
    Posts
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    Default Re: e8400 vcore/fsb problem.

    I tried a few sets of voltages (mch and cpu ref), but still bsod or mostly just restart while loading windows, and in one setting pc just kept turning off.
    And on previous tries ( with 1,24vtt) few times were without bsod - just black screen and restart (like bsod but with turned off screen).
    I am so tired with all these problems. I just want to know what fails.
    CPU: C2D E8400 E0 @3,0 1,35v!
    MOBO:
    Gigabyte EP45-DS3R rev1.0 [bios F11a]
    GPU:
    eVGA 280gtx 1024MB
    RAM:
    2x2GB OCZ 1066 CL5 Heatpipe
    POWER: beQuiet! 700W
    COOL: 3x Scythe Mugen

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