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Thread: GA-MA785GM-US2H won't POST - memory problem




  1. #11
    Chike is offline Senior Member
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    Seems as if memory channel 0 does not work.
    It's still woth it to try out of case as profJim suggested.
    And to clear any doubt, load optimized defaults with one stick in slot 2 or 4, and then try both modules seperately in slots, 1 & 3.

  2. #12
    Chike is offline Senior Member
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    I think it is safe to say there's a problem with channel 0, and the board needs to be replaced.

    EDIT: one more thing before you run to the store is to check the CPU socket for bent pins.
    Last edited by Chike; 01-22-2011 at 04:17 AM.

  3. #13
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    You also may want to pull that cpu out and check carefully to be sure no pins are bent or missing. We have seen where that can cause the same issue too.
    http://forums.tweaktown.com/gigabyte...ench-test.html
    http://www.gigabyte-usa.com/FileList...ios_qflash.pdf
    Phenom II 945 @ 3.2Ghz w/Thermaltake Big Typhoon Pro 14 CPU Cooler
    Gigabyte GA-MA78GM-S2H rev.1.1 F11
    Sapphire 3870HD / 100225L / 512MB / ddr4
    4GB / Kingston / KHX8500D2K2/2GN / 5-5-5-18 / 1066Mhz
    (2) WD Caviar / WD2500AAKS/ 250GB in SATA RAID-0
    (1) WD Caviar / WD2500AAKS/ 250GB in SATA AHCI
    (2) IDE's 1 8XdualDVDRW 1 52x32x52x CDRW
    Antec /Neo HE550 / 550W
    Mid size ATX case with show through panel
    2) 80x80 front fans (1) 120x120 rear fan and small nb fan
    Microsoft comfort curve USB keyboard 2000 ver.1.0
    Logitech G500 USB mouse
    Monitor: CMV937A
    7.1+2 Channel High Definition ALC889A
    Dual boot Windows 7 32bit home & Windows 7 64bit home


  4. #14
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    I conclude that the slot #1 & #3 are bad and decide to send it back to newegg.

    Here is my summary:
    - Tested the MOBO on the hardboard rather than in the case
    - only installed CPU, 450w PSU w/ 24pin & 4pin, and the memory
    - can POST and even boot XP with single or two sticks on slot #2 & #4 (single channel mode).
    - If any memory inserted either/both on slot #1 & #3, no POST.
    - tried all the different combination of 2 pairs of memory but different manufacture. no lock
    - tried all the different voltage and timing. no lock
    - cleared CMOS, loaded default optimized settings. no lock

    BTW, when it fails to POST, it has continuous long beeps meaning that no graphic card according to manual. and the thing is that I use the board's integrated video card which eventually requires the memory from the main memory!!

    It is such lame that this is already the replacement board for the first one which was also DOA. No words for you, gigabyte. I might choose a different board for my upgrade.

    Thanks guys for all your help.

  5. #15
    Chike is offline Senior Member
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    Sorry to hear that.
    If you had a replacement from the seller it may not be GB fault.

  6. #16
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    I conclude that the slot #1 & #3 are bad and decide to send it back to newegg.
    It is such lame that this is already the replacement board for the first one which was also DOA.
    If the issue persists check the CPU it is possible it's bad. Also sometimes it is a broken or bent pin. Pins are difficult to see. Sometimes they are broken off at the base of the cpu and missing.
    You may need a magnifying glass to check this.
    Also the CPU could be bad.
    Just something for you to consider if the problem persists after the MB r&r.
    Please let us know how it goes.
    Last edited by artdrivers; 01-23-2011 at 12:05 AM.
    http://forums.tweaktown.com/gigabyte...ench-test.html
    http://www.gigabyte-usa.com/FileList...ios_qflash.pdf
    Phenom II 945 @ 3.2Ghz w/Thermaltake Big Typhoon Pro 14 CPU Cooler
    Gigabyte GA-MA78GM-S2H rev.1.1 F11
    Sapphire 3870HD / 100225L / 512MB / ddr4
    4GB / Kingston / KHX8500D2K2/2GN / 5-5-5-18 / 1066Mhz
    (2) WD Caviar / WD2500AAKS/ 250GB in SATA RAID-0
    (1) WD Caviar / WD2500AAKS/ 250GB in SATA AHCI
    (2) IDE's 1 8XdualDVDRW 1 52x32x52x CDRW
    Antec /Neo HE550 / 550W
    Mid size ATX case with show through panel
    2) 80x80 front fans (1) 120x120 rear fan and small nb fan
    Microsoft comfort curve USB keyboard 2000 ver.1.0
    Logitech G500 USB mouse
    Monitor: CMV937A
    7.1+2 Channel High Definition ALC889A
    Dual boot Windows 7 32bit home & Windows 7 64bit home


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