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Thread: GA-X58A-UD3R Ram issue with win7 64 bit




  1. #31
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    Default Re: GA-X58A-UD3R Ram issue with win7 64 bit

    Quote Originally Posted by _MC_ View Post
    Hi guys,

    I've just bought the same mb with i7 930 and GEIL GV36GB1333C7TC RAM modules and have the simmilar problem. During cold start the mb sees only 1-2 modules and WIN7 (64b) shows 6GB with 2/4 GB available memory. After switching off and on mb shows correct value and so it goes with WIN7.
    This configuration passes stability test but during stress test e.g. gaming it sometimes freezes. And when it starts freezing it continues till I downclock RAM from 1333 to 800Mhz, when it works fine. I've loaded F5 BIOS and even tried to increase voltage of DRAM to 1,64V.
    I noticed that it can be connected with temperature so I put some extra cooling for DRAM. It just longer the time when it begins to freeze.
    Is it the mb or DRAM modules? What do you think?
    did you try raising qpi/vtt voltage also??
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  2. #32
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    Default Re: GA-X58A-UD3R Ram issue with win7 64 bit

    So you sent it off already?

    You may not have needed to do that, sometimes it is the memory itself or you need to take a bit more time to find the proper QPI/Vtt voltages and uncore settings is all. Incorrect settings can easily cause this!

    FYI (Anyone reading)
    Dram voltage 1.64 is often 1.62-1.63 so in some cases this may not be enough for your memory, always set 1.66V for 1.64-1.65V actual

  3. #33
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    Default Re: GA-X58A-UD3R Ram issue with win7 64 bit

    The stock values for my DRAM was 7-7-7-20 with 1.5V at 1333MHz. And I checked with the service guy, he told me not to go over 1.65. Besides why at the stock settings my mb didn't see the whole memory during cold start?
    But still it was working fine at 800MHz.
    So I bought the brand new DRAM 2GB LV (1.5V) 9-9-9-34 1333MHz from another vendor and for a short time it was working fine at 1066MHz. But on Sun inspite of DRAM I put and setting I chose, it just kept on freezing (even at 800MHz).
    About settings - I was trying Standard, Turbo, Extreme, Manual acc. to stock values, Manual downgraded to min.
    I know that I haven't used all the possibilities, but still it should've worked at stock values.
    It is very likely that I get a new one then we'll see.
    Thx anyway.
    BTW I checked the modules with memtest86.
    I sent it back with DRAM and I'll wait for them to decide what to do.
    Last edited by _MC_; 05-12-2010 at 10:13 PM.

  4. #34
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    Default Re: GA-X58A-UD3R Ram issue with win7 64 bit

    Yes, that is a standard rule/myth. While you shouldn't go over 1.65 for warranty purposes, you can as long as QPI/Vtt is within 0.5V of the dram voltage.

    Anyway though, 1.66V setting is the closest to 1.65V you can get, normally it is 1.64-1.645 and can sometimes be 1.65 exactly. 1.64 however will not be, that is usually 1.62-1.63 or so.

    Memory will not show up properly, even at stock/auto due to incorrect voltages or other settings. The board cannot guess what your CPU needs as far as QPI/Vtt, dram voltage, and or Uncore. Auto may not always work, so do not expect to rely on that, it is only there so you can get into the BIOS and set things yourself. OEM PC's such as Dell or HP are plug and play where auto always works because things are set so terribly for performance that the general settings cover all hardware.

    That cannot happen in these boards, otherwise auto 1.5 QPI may work for someone else but may kill your CPU, so that is not what auto uses. Just an example of course. Auto generally uses very low voltages and poor timings so that the board can load the BIOS for you to setup things properly.

    When you get your new memory please let me help you with settings, and please take my advice so you are not dealing with issues like this for so long.

    Once proper settings are found and applied you will be good to go, auto/stock is not going to get you there most of the time

  5. #35
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    Default Re: GA-X58A-UD3R Ram issue with win7 64 bit

    OK. I'll write after receiving my mb.

  6. #36
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