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




  1. #1
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    Default GA-MA785GM-US2H won't POST - memory problem

    This is the new MOBO w/ Athlon 62 X2 3800+ (AM2) & 2 x Crucial 512mb 800 (same model).

    It doesn't POST IF I put them in the slot 1 & 2. HOWEVER, if I put them in slot 2 & 4, it posts and says rams are running in single channel. I've tried a single stick on slot 1 & 3, doesn't post, but 2 & 4 works even if with single stick.

    Am I missing something here? Is my MOBO bad OR it just happens to be that my rams are not compatible with the MOBO??

    Please, help me here.

  2. #2
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    Have you tried installing the sticks into the 2 red or white slots? This will be 3 and 4 and are in dual channel mode on these motherboards.
    GA-MA785GM-US2H rev. 1.0 are gold and red slots

    By artdrivers at 2011-01-21
    GA-MA785GM-US2H rev. 1.3, or 3.3 are blue and white slots.

    By artdrivers at 2011-01-21
    GA-MA785GM-US2H rev. 1.1 are blue and white

    By artdrivers at 2011-01-21
    Last edited by artdrivers; 01-21-2011 at 10:42 PM.
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  3. #3
    Chike is offline Senior Member
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    <s>What about 3 & 4?
    Looks like slot 1 is faulty.</s>

    EDIT: sorry i missread the OP.
    Last edited by Chike; 01-21-2011 at 10:52 PM.

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

    Try this:
    1. boot with only one memory module in any working slot
    2. enter the bios and load OPTIMIZED bios settings (F7), save settings and exit
    3. re-enter the bios, press CTRL+F1, enter the MIT section and manually set DDR2 Voltage Control = +0.1 volts
    4. press ESCAPE to return to main bios screen
    5. press F10 to save settings and exit
    6. turn off your system, unplug your power supply, press and hold the front panel on/off switch for 10 - 15 seconds
    7. install both memory modules in the first two slots closest to the cpu
    8. reconnect your power supply and power on your system
    Is your memory rated to run at 800MHz with 1.8 volts?

    If this doesn't help, you need to try booting with your motherboard outside of the computer case where you unplug your system and remove your motherboard from the computer case.
    Set your motherboard on a cardboard box or some books next to the computer case and connect the cables to your motherboard and try booting.

    It looks like memory slot #1 might be defective.
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  5. #5
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    Number 1 slot could be bad. That's why I am suggesting installing it into the white slots. profjim could be onto something. Some of that Crucial memory is designed to run at 2.2 volts at 800Mhz. Find out which modules you have (model numbers) then check with Crucial's website to see what voltage rating that memory needs to be set at. These motherboards usually set them on about 1.8v. You will need to go into Bios to increase the voltage. Without the memory model number we can only suggest increasing voltage. It's also important to know how much votage increase it takes.
    Last edited by artdrivers; 01-22-2011 at 12:01 AM.
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    Mid size ATX case with show through panel
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    Microsoft comfort curve USB keyboard 2000 ver.1.0
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    Monitor: CMV937A
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  6. #6
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    I'm always onto something....let's just hope that I'm not on a wild goose chase. ;)

    Memory slot #1 might be temporarily bad while the motherboard is currently installed in the case.
    It's a long shot, but maybe there's some crud or plastic in the memory slot.

    Please post a link to the specifications for your exact model of ram.
    If your system currently has a windows operating already installed on the hard drive, you can go into windows and post an SPD screen-shot from Cpu-Z or Memset to show us the memory information.

    ***EDIT*** All DDR2 memory "should" work with only 1.8 volts, but it might be dumbed down to a lower speed and/or latency if the memory is rated to run at 800MHz with higher voltages.
    As I recall, my Crucial Ballistic 2.2 volt memory runs with 1.8 volts at 800MHz, but the SPD sets the memory timings to something like 5-5-5-15 instead of its rated 4-4-4-12 memory timings.

    Another option is to borrow some other memory to test with in slot 1.
    It's not clear (to me) if the OP tested both of the modules in slot #1.
    Last edited by profJim; 01-22-2011 at 12:14 AM. Reason: more info
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
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  7. #7
    Chike is offline Senior Member
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    But it's not only slot #1 it's both slots 1 & 3, channel 0.

  8. #8
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    Do you think he maybe didn't Load optimized defaults before installation? Had the memory set up in Bios wrong when he first changed it? Or maybe did'nt get it fully seated the first time? Yeah we first need the memory link to get the memory voltage. Second I still would Load optimized defaults then unplug the power supply and try it in 3and4.
    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


  9. #9
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    Chike:
    Yes. It's not only slot #1, but also can't post with single stick on slot #3.

    The board hasn't been installed to the case yet. I'v tested all different settings: adjusting ram voltage & clearing cmos (jumper & battery). No luck.

    AND I just tried the 2x1g ram borrowed from my friend (verified working on his system),
    the same result: doesn't boot on slot #1 and/or #3, but works on #2 & #4.

    My ram model is Crucial BL6464AA804, and spec says
    Timing: 4-4-4-12
    Voltage: 2.2V

    And actually, I haven't tried that timing setting (the default was 5-5-5-18 as I remember). I let you guys know if it works out when I get home. Thanks for your help.

  10. #10
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    Default Re: GA-MA785GM-US2H won't POST - memory problem

    Right now we have no idea what other components are in the system, especially the power supply.
    It's possible that a faulty psu is causing the problem.
    Maybe the psu cables aren't properly seated in the mobo sockets.
    Are all the other components properly seated or hooked up?
    In a recent thread, a psu power cable was plugged into a mobo fan header and that system wouldn't post.

    Did the OP individually try both modules, one at a time in slot 1 and then slot 3?
    When slots 1 and 2 were both filled but wouldn't post, did he try swapping places with the modules, for example:
    - module A in slot 1, module B in slot 2 --> didn't work
    - module B in slot 1, module A in slot 2 --> ????
    ---------
    - module A in slot 3, module B in slot 4 --> ????
    - module B in slot 3, module A in slot 4 --> ????
    --------
    When only one of the slots was filled and didn't work, did he test the same slot by trying the other module in the same slot? Did he do the same test with the other "bad" memory slot.

    Troubleshooting an issue like this requires trying many options, possibly by testing with different hardware other than just the memory.

    Post #1 isn't perfectly clear to more than one of us.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


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