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Thread: Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair




  1. #11
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    Default Re: Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair

    No combination of settings creates a stable machine. it wont stay running on auto/default settings, 4.0 OC, or anything in between. Although itll run for 20-120 minutes on those settings....if im lucky.
    Last edited by phosphene; 03-21-2011 at 07:38 AM.

  2. #12
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    Default Re: Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair

    Quote Originally Posted by Chike View Post
    Thanks. There was lotsa helpful info in there. Especially regarding the CPUNB frequency...

    "As for the CPU-integrated North Bridge, we additionally increased its frequency with the multiplier to 3.0 GHz. This North Bridge includes a memory controller and L3 cache, so its overclocking helps reveal the potential of high-speed system memory better."

    As I'm typing this, my settings are...
    MB Intelligent Tweaker(M.I.T.)
    CPU Clock Ratio [manual] x16 4000
    CPU NorthBridge Freq. [manual] x12= 3000
    Core Performance Boost [disabled]
    xCPB Ratio [disabled]
    xTurbo CPB [disabled]
    CPU Host Clock Control [manual]
    x CPU Frequency(MHz)[manual] 250
    PCIE Clock(MHz) [Auto]
    HT Link Frequency [manual] 9x= 2250
    Set Memory Clock [manual]
    x Memory Clock 8x=2000 [manual] 11-11-11-29-41 2t
    ******** System Voltage Optimized ********
    System Voltage Control [manual]
    x DRAM Voltage Control [manual] 1.8v
    x NB Voltage Control [manual] 1.38v
    x NB PCIE Voltage Control [auto] 1.8v
    x CPU NB VID Control Auto [manual] 1.375v
    x CPU Voltage [manual] 1.50v

    But, its still unstable.
    Last edited by phosphene; 03-21-2011 at 10:10 AM.

  3. #13
    Chike is offline Senior Member
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    Default Re: Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair

    I don't think the RAM is rated for 1.8v, the standard require that 1.8v won't cause instant damage but does not require that it wil operate at this level. Set RAM voltage according to manufacturer specs.
    Also the RAM rated 1800 why try 2000? Take a step at a time, not all boards are the same so try to find your systems limits, step by step.
    Also, maybe the chipset is not capable of 3000MHz.

    As I said before, tweaking one feature at a time will get you to system optimized settings, shooting all around you will probably miss the target.

  4. #14
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    Default Finally!! Stable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair settings


    I think I finally found the sweet spot...

    MB Intelligent Tweaker(M.I.T.)
    CPU Clock Ratio [Auto] x16= 4000
    CPU NorthBridge Freq. [Auto] x8= 2000
    Core Performance Boost [Disabled]
    -CPB Ratio [Disabled]
    -Turbo CPB [Disabled]
    CPU Host Clock Control [manual]
    -CPU Frequency(MHz)[manual] 250
    PCIE Clock(MHz) [Auto]
    PCIe Spread Spectrum [Disabled]
    HT Link Frequency [Auto] x8= 2000
    Set Memory Clock [Manual]
    -Memory Clock [x6.66]= 1666
    DRAM Configuration [Auto] 9-9-9-24-34 1T
    ******** System Voltage Optimized ********
    System Voltage Control [manual]
    x DRAM Voltage Control [manual] 1.7v
    x NB Voltage Control [manual] 1.38v
    x NB PCIE Voltage Control [normal] 1.8v
    x CPU NB VID Control Auto [manual] 1.375v
    x CPU Voltage [manual] 1.50v

    Thoughts:
    I gave up on trying to get the RAM to run stable at the specified 1866mhz. Although, it scored better on windows experience index underclocked at 1666mhz. Better score because of the 1T timings perhaps?

    "core performance boost" seems to decrease stability

    No diff in gaming FPS from 3.2ghz/1333mhz through 4.0ghz/2000mhz

    Street Fighter 4 Benchmark
    SCORE: 7473
    AVERAGE: 84.43FPS
    OS: Microsoft Windows 7 Ultimate
    CPU: AMD Phenom(tm) II X6 1090T Processor
    Memory: 4093MB
    Graphics Card: ATI Radeon HD 5700 Series
    Video Memory: 1024MB
    Display Setting: 1920x1200 60Hz 8xAA

    Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair-4ghz1666mhz-jpg
    Last edited by phosphene; 03-21-2011 at 08:25 PM.
    Completely unstable computer, even when underclocked
    Gigabyte GA-870A-UD3 rev 2.2, BIOS F5a <-- avoid this mobo like the plague
    AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz @3.2GHz
    CORSAIR DOMINATOR GT 4GB (2 x 2GB) DDR3 1866Mhz @1333Mhz
    Gigabyte Radeon HD 5770 1GB
    2 x 1TB SATA2 RAID0
    700 watt PSU
    Blu-Ray

  5. #15
    Chike is offline Senior Member
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    Default Re: Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair

    With RAM at 1666 your should be able to run CAS 8, 8-8-8-24 or 8-9-8-24.
    NB and CPU/NB are high for 2000MHz, try to lower them down or increase NB frequency to 2500/2700, this should boost memory performance.

    WEI is not much of memory benchmark, use AIDA Memory benchmark, MaxxMEM² - PreView or any other.

    No doubt your system is faster now, but if the bottleneck is the GPU it won't matter hw far you push the CPU.

  6. #16
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    Default Re: Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair

    Quote Originally Posted by Chike View Post
    With RAM at 1666 your should be able to run CAS 8, 8-8-8-24 or 8-9-8-24.
    NB and CPU/NB are high for 2000MHz, try to lower them down or increase NB frequency to 2500/2700, this should boost memory performance.

    WEI is not much of memory benchmark, use AIDA Memory benchmark, MaxxMEM² - PreView or any other.

    No doubt your system is faster now, but if the bottleneck is the GPU it won't matter hw far you push the CPU.
    Yeah, more than enough power to push 1 video card.

    It seems to run fine with lower voltages and tighter ram timings...

    CPU Clock Ratio [Auto] x16= 4000
    CPU NorthBridge Freq. [Auto] x8= 2000
    Core Performance Boost [Disabled]
    -CPB Ratio [Disabled]
    -Turbo CPB [Disabled]
    CPU Host Clock Control [manual]
    -CPU Frequency(MHz)[manual] 250
    PCIE Clock(MHz) [Auto]
    PCIe Spread Spectrum [Disabled]
    HT Link Frequency [Auto] x8= 2000
    Set Memory Clock [Manual]
    -Memory Clock [x6.66]= 1666
    DRAM Configuration [Manual] 8-8-8-24-34 1T
    ******** System Voltage Optimized ********
    System Voltage Control [manual]
    x DRAM Voltage Control [manual] 1.7v
    x NB Voltage Control [normal] 1.1v
    x NB PCIE Voltage Control [normal] 1.8v
    x CPU NB VID Control [normal]
    x CPU Voltage [manual] 1.50v
    Last edited by phosphene; 03-23-2011 at 04:20 PM.
    Completely unstable computer, even when underclocked
    Gigabyte GA-870A-UD3 rev 2.2, BIOS F5a <-- avoid this mobo like the plague
    AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz @3.2GHz
    CORSAIR DOMINATOR GT 4GB (2 x 2GB) DDR3 1866Mhz @1333Mhz
    Gigabyte Radeon HD 5770 1GB
    2 x 1TB SATA2 RAID0
    700 watt PSU
    Blu-Ray

  7. #17
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    Default Re: Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair

    Every time i thought this thing was stable....i spoke too soon. This GA-870A-UD3 is, hands-down, the worst motherboard I have ever had the displeasure of encountering. This mobo makes Asus look good. Once I replace this POS mobo with a quality brand, I will post a pic of the GA-870A-UD3 with 000 buckshot installed.

    Quote Originally Posted by phosphene View Post
    Yeah, I still can't get this POS to become stable. Even at stock/underclocked settings, it has severe stability issues.

    It'll post, boot, and even run games at most settings....3.2/1333, 3.74/1866, 4.0/1666, 4.0/2000. But the longest itll stay running is a day or 2. And even mildly overclocked, I'm lucky if itll run for an hour.

    This motherboard has choked on everything I have thrown at it. And all Ive been throwing at it is its' own drivers.

    It choked on my OS disc
    it choked on the RAID drivers
    the Realtek LAN drivers have widespread known issues with torrent checking
    the GRAID SATA ports are junk
    the USB power during shutoff is not powerful enough to charge my iphone4
    the user manual is "general" and is missing many of my board-specific BIOS setting descriptions
    the board is short and misses the end support bolt on my case. This creates a threat of breakage during RAM installation.
    The main SATA bank is directly under the 2nd video card slot.

    I'm trying to think of something nice to say about this motherboard, but I can't. I don't even like the color.
    Completely unstable computer, even when underclocked
    Gigabyte GA-870A-UD3 rev 2.2, BIOS F5a <-- avoid this mobo like the plague
    AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz @3.2GHz
    CORSAIR DOMINATOR GT 4GB (2 x 2GB) DDR3 1866Mhz @1333Mhz
    Gigabyte Radeon HD 5770 1GB
    2 x 1TB SATA2 RAID0
    700 watt PSU
    Blu-Ray

  8. #18
    Chike is offline Senior Member
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    Default Re: Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair

    If it's unstable at stock settings why not RMA?
    And maybe it's the CPU not the motherboard? Would be a waste of money on another motherboard just to find that out.

  9. #19
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    Default Re: Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair

    Bump for crappy junk hardware warning

    this POS will only start if it feels like it. This is my 1st, and last, gigabyte purchase. Worst motherboard EVER. Gigabyte has actually made Asus look good.
    Completely unstable computer, even when underclocked
    Gigabyte GA-870A-UD3 rev 2.2, BIOS F5a <-- avoid this mobo like the plague
    AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz @3.2GHz
    CORSAIR DOMINATOR GT 4GB (2 x 2GB) DDR3 1866Mhz @1333Mhz
    Gigabyte Radeon HD 5770 1GB
    2 x 1TB SATA2 RAID0
    700 watt PSU
    Blu-Ray

  10. #20
    Join Date
    Mar 2011
    Location
    ca
    Posts
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    Default Re: Unstable GA-870A-UD3 + 6core + 4GB 1866mhz Corsair

    I installed some 000 Buckshot today. No change in performance. It still doesn't work.

    Summary: This was my 1st, and last, Gigabyte purchase. It's not even worth the trouble to RMA garbage like that. Worst motherboard EVER.
    Completely unstable computer, even when underclocked
    Gigabyte GA-870A-UD3 rev 2.2, BIOS F5a <-- avoid this mobo like the plague
    AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz @3.2GHz
    CORSAIR DOMINATOR GT 4GB (2 x 2GB) DDR3 1866Mhz @1333Mhz
    Gigabyte Radeon HD 5770 1GB
    2 x 1TB SATA2 RAID0
    700 watt PSU
    Blu-Ray

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