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Thread: EP35-DS4 Cold boot problem




  1. #11
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: EP35-DS4 Cold boot problem

    Did you READ the calibration method he says to use, it is obvious how everyone can use that and calibrate it just fine. I took my CPU down to 1.6 as he said, but used .80 volts and my temps as he said were 4C above ambient. As long as you do not have a stuck sensor anyone who has a decent board that will go under 1.1V can calibrate it just fine.

    I think you should fully read all of that calibration page again, and do the calibration yourself and you will see. It sounds as if you only read half of it then stopped to think, read it all and do it and you will see that as long as you do not have a stuck sensor then your CPU WILL come down in temp to 4-6 above ambient

  2. #12
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    Default Re: EP35-DS4 Cold boot problem

    Update. New PSU (650W Antec Blue).

    I was wrong ... the old one only had a 4 pin cpu power pin. I now have and 8 :)

  3. #13
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  4. #14
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    Default Re: EP35-DS4 Cold boot problem

    I just started it again after 8 hours off with no issues.

    If you mean is it doing anything differently once started I'm not sure lsd - it always ran well once started. Today or tomorrow I'll sharpen up the memory settings.

  5. #15
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  6. #16
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    Default Re: EP35-DS4 Cold boot problem

    I am consistently able to start the machine but I am getting memory test errors. Around 8 per cycle when using MemTest from windows. Errors from test 3 with the tester you recommended.

    Any thoughts on a more conservative set of settings or should I pull 2G at a time and see if its faulty ram?

    Thanks, John

  7. #17
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    Default Re: EP35-DS4 Cold boot problem

    What settings are you using? And have you tested the ram one stick at a time on default speed and auto setting? If not do that first to be sure the ram is not faulty and you ned RMA.

    How does test #2 and #5 Only do? Errors are errors, I just wondered. Here is how to select tests if you do not know >>>>

    1. First press C

    2. then 1

    3. then 3

    4. and finally select the test that you want to run

    5. press Enter

    6. and then 0 to get it running

    if it is fine that way, let me know what settings you are using and I will see if I can see maybe what is too tight

  8. #18
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    Default Re: EP35-DS4 Cold boot problem

    OK. With F3 it shows two columns of memory settings, one under (Spd) and the other under [Auto] (auto could be manual depending on the setting).

    Initially I ran it like this

    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ 9x
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________ [333]
    CPU Fine Clock Ratio_________ +.5
    PCI Express Frequency (Mhz)_______ [100]
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [2.40]
    DRAM Timing Selectable_______ SPD __ [Manual]

    CAS Latency Time________________ 5 5
    Dram RAS# to CAS# Delay_________ 5 5
    Dram RAS# Precharge Delay_______ 5 5
    Precharge Delay (tRAS)__________ 18 15
    ACT to ACT Delay (tRRD)_________ 3 4
    Rank Write to READ Delay________ 3 11
    Write to Precharge Delay_________ 6 5
    Refresh to ACT Delay______________42 62
    Read to Precharge Delay__________ 3 6
    Static tRead Value_______________ 6 10
    Static tRead Phase Adjust________ 1 Auto

    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [0.1]
    PCI-E OverVoltage Control_ [0.1]
    FSB OverVoltage Control___ [0.1]
    (G)MCH OverVoltage Control [0.125]
    CPU Voltage Control_______ [Normal]


    When I ran 2G pairs I had no problems. When I ran 4G I had memory test errors.

    So I left everything the same except the
    DRAM Timing Selectable_______ SPD __ [Manual]

    which I changed back to Auto. No errors at all! Swapped to manual - errors. Back to Auto - no errors.

    So something about the auto setting is "better." Turned it off for the night. Turned it on in the morning and it didn't start. Waited 10min and hit reset. Claimed bios faulty and reverted to F1 (the old problems).

    So I have qflashed with f3. Set it to your settings suggested in the first post except two where my auto settings appeared more conservative (highlighted in bold):


    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ 9x
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________ [333]
    CPU Fine Clock Ratio_________ +.5
    PCI Express Frequency (Mhz)_______ [100]
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [2.40]
    DRAM Timing Selectable_______ SPD __ [Manual]

    CAS Latency Time________________ 5 5
    Dram RAS# to CAS# Delay_________ 5 5
    Dram RAS# Precharge Delay_______ 5 5
    Precharge Delay (tRAS)__________ 18 18
    ACT to ACT Delay (tRRD)_________ 3 4
    Rank Write to READ Delay________ 3 11
    Write to Precharge Delay_________ 6 6
    Refresh to ACT Delay______________42 62
    Read to Precharge Delay__________ 3 6
    Static tRead Value_______________ 6 10
    Static tRead Phase Adjust________ 1 Auto

    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [0.1]
    PCI-E OverVoltage Control_ [0.1]
    FSB OverVoltage Control___ [0.1]
    (G)MCH OverVoltage Control [0.125]
    CPU Voltage Control_______ [Normal]


    Tested with no errors. 20 hours before I'll know for sure if a cold start causes a problem although I will rerun the ram tests in 5 hours when I finish work and then turn it off for a few hours and see if a "cool start" causes problems with these settings.

    Thanks, John

  9. #19
    Lsdmeasap's Avatar
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    Default Re: EP35-DS4 Cold boot problem

    Looks good. Yeah Auto can be good (Kinda to pass error free, sometimes) because it sets things often WAY to high. Likely you just had one setting to low when initially failing with it on manual. Which could likely have JUST been the Write to precharge delay. 5-5-5-18 likely helped overcome that, but is not necessarily needed. 5-5-5-15 would work just have to find the right subtimings. But either way 15/18 there will not be any noticeable difference anyway, even in a benchmark

    Now static tRead if you can bring that down to 7 or 8 you will see a difference

  10. #20
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    Default Re: EP35-DS4 Cold boot problem

    CPU tEMP?

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