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Thread: pc wont post or boot after 2GB more ram installed!!!




  1. #1
    Join Date
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    Unhappy pc wont post or boot after 2GB more ram installed!!!

    Hi all,

    first of all here is my rig:

    core 2 <nobr style="font-weight: normal; font-size: 100%; color: rgb(0, 0, 0);" id="itxt_nobr_2_0">duo</nobr> e8400 cpu
    GA-EP45-DS3 Mobo
    g.skill 4 X 1 GB pc8500 1066mhz 5-5-5-15
    4870 gfx card
    corsair vx 550w psu

    so i recently decided to upgrade to 4 GB of ram after initially having 2 GB running perfecly for over a year on windows vista 32BIT.
    I got the extra 2GBs because i got win7 64 bit -------so i bought exacly the same ram as my old one G.skill 2 x 1 GB pc8500 1066mhz 5-5-5-15

    The problem is the system wont boot after I install the 4 sticks of ram but will run perfecly fine with 2 sticks

    Ive tried the 2 new sticks alone and they worked but using all of the 4GB wont let me boot the system I also tried diffrent combinations like old ram with new and results were that as long as its 2GB it will boot but not 4GB

    after a lot of googling here are the thing i tried until now:

    updated bios - nothing
    shifted the sticks in diffrent combinations -nothing
    i set the voltage to 2.0V and 2.1V in BIOS (on the ram the sticker says 2.0-2.1v) -nothing
    i installed and reinstalled the sticks many times -nothing



    Im really desperate ive tried everything

    anyone has an idea of whats happening? im sure nothing is defective when it comes to hardware because i tried the sticks on the 2 other slots alone and system booted


    Thanks in advance

  2. #2
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    Default Re: pc wont post or boot after 2GB more ram installed!!!

    Boot with 2GB and set the following:

    Set voltage to the max supported

    Set MCH Core to 1.28V or +0.2 what ever your Mobo shows.

    Make sure the Primary timings are manually set.

    Make sure the System Memory Multiplier is set corrently and that the projected RAM speed shown states "1066 or very close.

    Now shut down and install all 4GB and see if you can boot.

    If not you may need to go to advanced timings and set Static tRead/Performance level manually. Set it to 9 for now and then try again with 4GB (in combination with all the other settings changed previously of course).

    Take a careful look at the new RAM you bought. It's not sufficient to just have more "PC8500 1066 5-5-5-15" it must also be of the exact same model eg "F2-8500CL5D-4GBPK". If not then you have mismatched RAM.
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  3. #3
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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  4. #4
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    Default Re: pc wont post or boot after 2GB more ram installed!!!

    Quote Originally Posted by Psycho101 View Post
    Boot with 2GB and set the following:

    Set voltage to the max supported

    Set MCH Core to 1.28V or +0.2 what ever your Mobo shows.

    Make sure the Primary timings are manually set.

    Make sure the System Memory Multiplier is set corrently and that the projected RAM speed shown states "1066 or very close.

    Now shut down and install all 4GB and see if you can boot.

    If not you may need to go to advanced timings and set Static tRead/Performance level manually. Set it to 9 for now and then try again with 4GB (in combination with all the other settings changed previously of course).

    Take a careful look at the new RAM you bought. It's not sufficient to just have more "PC8500 1066 5-5-5-15" it must also be of the exact same model eg "F2-8500CL5D-4GBPK". If not then you have mismatched RAM.

    HI and thanks for your response, just got back home gonne strat trying what you said in a few minutes and yes on all of the 4 sticks the model is F2-8500CL5D-2GBPK

    will update soon with results

  5. #5
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    Default Re: pc wont post or boot after 2GB more ram installed!!!

    Guys i dont know whats happening but every time i make a MINOR modification on bios it woont boot and does 1 long beep and 1 short beep right after


    Even modifications like just put 9x ratio for CPU (which should be at 9 originally)

    i dont understand whats going on if i do A SINGLE modification to values in bios system wont boot and i have to shut it down like 4 times then remove power cord and plug it in so it can boot and it puts its own values

    its driving me crazy :( i thought this mobo was better than this..

  6. #6
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    Default Re: pc wont post or boot after 2GB more ram installed!!!

    any ideas

  7. #7
    Chike is offline Senior Member
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    Default Re: pc wont post or boot after 2GB more ram installed!!!

    Have you tried clearing CMOS yet? See http://forums.tweaktown.com/f69/bios...76/#post258596 give it 20-40 minutes clear, and an overnight if that does not help.

    Ir's a bit of a voodoo, but I've seen it help couple of people that have problems with BIOS changes.

  8. #8
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: pc wont post or boot after 2GB more ram installed!!!

    Check out this post for basic recommended bios settings after you have first loaded optimized bios settings.
    Follow steps 1 - 4 to provide additional information about your hardware and bios settings.
    Last edited by profJim; 11-21-2009 at 08:21 PM.
    Q9650 @ 4.10GHz [9x456MHz]
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  9. #9
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    Default Re: pc wont post or boot after 2GB more ram installed!!!

    Quote Originally Posted by mohwner View Post
    Even modifications like just put 9x ratio for CPU (which should be at 9 originally)

    What do you mean originally? Is it not set to 9 by default, or you mean you changed it and can't change it back?

    Are you using the latest BIOS and did you load optimized defaults and reboot after you flashed or built the system if you have not updated the BIOS?

    If you have not updated the BIOS please do, here is a guide on how to use Qflash to update your BIOS
    http://forums.tweaktown.com/f69/bios...h-guide-27576/

    Latest BIOS herehttp://forums.tweaktown.com/f69/gigabyte-latest-bios-28441/

  10. #10
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    Default Re: pc wont post or boot after 2GB more ram installed!!!

    mohwner,
    It would be helpful if system specs could be added to your usercp/signature, and if you could get an EP45 template from here, and fill it out with the settings from your bios. (Ignore any existing settings, change to yours.) If set to auto, put auto.

    I assume you have two sets of 2x1 rather than a matched set of 4x1. That can work, but also can be a problem. Two pairs may require lower speeds and looser timings.
    Last edited by Salty; 11-21-2009 at 04:16 PM.





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    Motherboard = GA-X58A-UD3R Revision 2
    , BIOS Version = Award FC
    Ram = 3x2gig Corsair TR3X6G1600C8D G
    Video = 2 X Palit GTX460 Sonic Platinum 1GB OC sli
    Monitor = 22" LG Flatron W2242T 1680 x 1050 Case = Coolermaster CM690
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    OS = Windows 7 Professional x64


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