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Thread: Can't get stable mild OC on GA-EX38-DS4




  1. #1
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    Default Can't get stable mild OC on GA-EX38-DS4

    Hello friends!

    I am having a hard time getting a G0 Q6600 to go to 3.0Ghz on the above reference MB. With the following settings, the machine failes prime95 (BSOD) almost immediately.

    The Memory is Mushkin model number 996580 4GB (2x2) XP2-6400

    FSB 333
    Multiplier 9x
    Manual DDR to get to 800mhz
    Timings are 44412 IAW with the sticker on the memory.

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="ProgId" content="OneNote.File"><meta name="Generator" content="Microsoft OneNote 12">
    • PCIE 100
    • DDR2 +.3
    • PCIE +.1
    • FSB +.1
    • MCH +.2
    • CPU 1.35
    • All enhancements disabled


    The following are memory settings from the Mushkin forums.


    • Act to act 4
    • Rank to read 5
    • Write to precharge 6
    • Read to precharge 6
    • Refresh to act 60
    • Static tread 8
    • Command rate 2t


    It will run Prime95 all day long with all the above settings except no overclock. Am I missing something? It seems this mild overclock should be easy to achieve.

    Thanks for your time

    Justin

    PS I have had several BSODs. I can link to the minidumps if desired.

  2. #2
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    Default Re: Can't get stable mild OC on GA-EX38-DS4

    Forgot to mention, ALL drivers are up to date, I am running windows vista x64 which is up to date, and the latest BIOS F6a from gigabyte.

    Justin

  3. #3
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Can't get stable mild OC on GA-EX38-DS4

    Try adding a bit more MCH such as .25 or .3

    What memory multiplier/strap combo are you using?

    You did test each stick one by one when you got it right to check for DOA or Faulty ram? If not you should as DOA can happen with any company. You should test each stick one at a time in slot one with Manually set ram voltage, Main timings set, and Memory multi + To stock ram speed. Everything else on auto (Memory Multi on Auto if it is already 800)

    Please post your full settings for me as well just to be sure >>>

    This is Just a template I use to ask people their settings, pay no attention to the numbers in it, replace with yours

    Code:
    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ [8] 
    Fine Clock Ratio ____________[0.5]
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________ [450] 
    PCI Express Frequency (Mhz)_______ [100]
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [2.00]
    DRAM Timing Selectable_______ SPD __ [Manual]
    
    Performance Enhance = [Standard]
    
    CAS Latency Time________________ ?
    Dram RAS# to CAS# Delay_________ ?
    Dram RAS# Precharge Delay_______?
    Precharge Delay (tRAS)__________ ?
    
    ACT to ACT Delay (tRRD)_________ ?
    Rank Write to READ Delay________ ?
    Write to Precharge Delay_________ ?
    Refresh to ACT Delay______________ ?
    Read to Precharge Delay__________ ?
    Static tRead Value_______________
    Static tRead Phase Adjust________ [Auto]
    
    CPU/PCIEX Clock Driving Control [800mV]
    CPU Clock Skew Control [normal]
    GMCH Clock Skew Control [Normal]
    
    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.300V] 
    PCI-E OverVoltage Control_ [+0.1V] 
    FSB OverVoltage Control___ [+0.1V] 
    (G)MCH OverVoltage Control [+0.1V] 
    CPU Voltage Control_______ [1.25]
    
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    C2/C2E State Support....................: [Disabled]
    x C4/C4E State Support..................: [Disabled]
    CPU Thermal Monitor 2(TM2) ...........: [Enabled]
    CPU EIST Function.........................: [Disabled]
    Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC
    
    Integrated Peripherals
    Legacy USB Storage Detect___________________[Disabled] *Note* Must be enabled to flash from USB

  4. #4
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    Default Re: Can't get stable mild OC on GA-EX38-DS4

    Hello, thanks for the response.

    Yes, I did test each stick individually, about 4 hours a piece. I ran memtest again overnight for about 9 hours. Also, the built in memory diagnostics utility in vista passed.

    Here are the settings currently trying to use. running prime95 as I type.

    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ [9]
    Fine Clock Ratio ____________[NA]
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________ [333]
    PCI Express Frequency (Mhz)_______ [100]
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [2.40B]
    DRAM Timing Selectable_______ SPD __ [Manual]

    Performance Enhance = [Standard]

    CAS Latency Time________________4
    Dram RAS# to CAS# Delay_________ 4
    Dram RAS# Precharge Delay_______4
    Precharge Delay (tRAS)__________ 12

    ACT to ACT Delay (tRRD)_________ 4
    Rank Write to READ Delay________ 5
    Write to Precharge Delay_________ 6
    Refresh to ACT Delay______________ 60
    Read to Precharge Delay__________6
    Static tRead Value_______________8
    Static tRead Phase Adjust________ [Auto]

    CPU/PCIEX Clock Driving Control [800mV]
    CPU Clock Skew Control [normal]
    GMCH Clock Skew Control [Normal]

    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.300V]
    PCI-E OverVoltage Control_ [+0.1V]
    FSB OverVoltage Control___ [+0.1V]
    (G)MCH OverVoltage Control [+0.3V]
    CPU Voltage Control_______ [1.38750]

    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Disabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    C2/C2E State Support....................: [Disabled]
    x C4/C4E State Support..................: [Disabled]
    CPU Thermal Monitor 2(TM2) ...........: [Disabled]
    CPU EIST Function.........................: [Disabled]
    Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC

    Integrated Peripherals
    Legacy USB Storage Detect___________________[Disabled] *Note* Must be enabled to flash from USB

  5. #5
    Lsdmeasap's Avatar
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    Default Re: Can't get stable mild OC on GA-EX38-DS4

    Try this along with your settings >>>>

    Robust Graphics Booster___________ [Fast]
    CPU Clock Ratio ____________ [9]
    Fine Clock Ratio ____________[NA]
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________ [333]
    PCI Express Frequency (Mhz)_______ [100]
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [2.40B] << Try 2.40D if you have it, if not more FSB Voltage may be needed

    DRAM Timing Selectable_______ SPD __ [Manual]

    Performance Enhance = [Standard]

    CAS Latency Time________________4
    Dram RAS# to CAS# Delay_________ 4
    Dram RAS# Precharge Delay_______4
    Precharge Delay (tRAS)__________ 12

    ACT to ACT Delay (tRRD)_________ 4
    Rank Write to READ Delay________ 5
    Write to Precharge Delay_________ 6
    Refresh to ACT Delay______________ 60
    Read to Precharge Delay__________6
    Static tRead Value_______________8-9
    Static tRead Phase Adjust________ [Auto]

    CPU/PCIEX Clock Driving Control [800mV]
    CPU Clock Skew Control [normal]
    GMCH Clock Skew Control [Normal] << try 100-150ps

    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.300V]
    PCI-E OverVoltage Control_ [+0.1V]
    FSB OverVoltage Control___ [+0.1V]
    (G)MCH OverVoltage Control [+0.3V] << Try .25 later
    CPU Voltage Control_______ [1.38750] << May need more?

    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Disabled] << Can be enabled as well if you like
    CPU Enhanced Halt (C1E)................: [Disabled]
    C2/C2E State Support....................: [Disabled]
    x C4/C4E State Support..................: [Disabled]
    CPU Thermal Monitor 2(TM2) ...........: [Disabled] << FOR SURE ENABLE THIS

  6. #6
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    Default Re: Can't get stable mild OC on GA-EX38-DS4

    thank You very much for your time! I will give those a try. With the settings I posted earlier, I was able to get about 3 hours into prime95... so getting closer! I will keep you posted. I will try your settings without anymore CPU voltage, but you might be right... might neeed a bit more.

    Justin

  7. #7
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    Default Re: Can't get stable mild OC on GA-EX38-DS4

    Hmmm ok, just as I shutdown to put your settings on, I got a BSOD IRQL_NOT_LESS_OR_EQUAL with stop code 0x0000000a. Now it should be noted, that at the time, I was not running the overclock that I mentioned before. So it is unrelated. A quick google shows that something like this is due to a buggy driver. Interestingly, when I rebooted, the settings for my XFI sound card were scrambled and I had no sounds. It was as if I just installed the thing. So now I am wondering if my sound card has been causing my issues all along. What do you think?

    Justin

  8. #8
    Lsdmeasap's Avatar
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    Default Re: Can't get stable mild OC on GA-EX38-DS4

    Could be, I just had another thread with a X-Fi user having issues.

    Can you re-install it and see if it is ok? Then try the settings?

    That can also just be ram errors, but since you did have issues with your card it may also be that

    If a re-install does not fix things, see how you get along without it for a bit

  9. #9
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    Default Re: Can't get stable mild OC on GA-EX38-DS4

    Ya I think I am going to try to take it out and run with onboard for a while, which is pretty good anyway. I did run prime 95 for about 6 hours with your settings... so getting closer. By the way, I don't have a 2.40D. What would you recommend for a NB voltage? Or, I could try raising the RAM frequency? I have a 2.60D. I did up the CPU voltage a bit and put NB voltage at +.2 and am currently running prime95 while I am at work. Assuming its going to fail, I will take out the sound card and drivers when I get home. Thanks again for all of your time.

    Justin

  10. #10
    Lsdmeasap's Avatar
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    Default Re: Can't get stable mild OC on GA-EX38-DS4

    Ohh maybe .2-.25 will do for MCH voltage, it's all up to your board though so you will have to set things high to find what is stable and then try less.

    Let me know how you get along with your tests

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