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Thread: x48-ds4 oc problem




  1. #1
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    Default x48-ds4 oc problem

    Hello,
    (forgive my weird english, im dutch ^^)
    For several days i've been trying to overclock my pc, but i'm having the same problem over and over again.

    When i put the setting (cpu host clock control) to 'enabled', and i save it with f10, my pc restarts (1 sec post), restarts again and changes 'cpu host **** control' back to 'disabled'.

    This is my system:
    mobo: Gigabyte x48-ds4
    proc: Intel Core2duo e8500 - 2x 3166 MHz + Ocz vendetta 2 cooler
    mem: Ocz ddr-2-1000 4 gig
    gc: 2 x Ati 4870 crossfire
    hdd: Seagate Barracuda 7200.11 500 gig
    ps: Corsair CMPSU-620HX

    Os: Windows vista Ultimate
    Bios (most recent version)
    At this moment the temperatures of the cpu are; idle-25 and on full-load-34. The graphic cards are both around 50 with 35% fanspeed.

    The normal bios-settings are standard. I've changed nothing in (M.I.T)

    Now the settings are like this:
    Robust Graphics Booster------------------Auto
    CPU Clock Ratio--------------------------9x
    Fine CPU clock ratio---------------------+0.5
    (cpu frequency)--------------------------3.16GHZ(333x9.5)
    CPU host clock control-------------------Disabled
    CPU host frequency-----------------------333

    PCI express frequency (Mhz)--------------Auto (=100)
    C.I.A 2-----------------------------------Disabled
    Performance Enhance----------------------Standard

    System memory Multiplier (spd)-----------Auto
    Memory frequency (Mhz)-------------------800 - 800
    Dram timing selectable (spd)-------------Auto 5-5-5-18
    Advanced timing control------------------Auto
    -------------------
    Clock driving & Skew control
    Cpu/PCIEX Clock Driving Control----------800mV
    Cpu clock skew control------------------ Normal
    (G)Mch Clock skew control---------------Normal
    -------------------
    System Voltage Optimized
    System Voltage Control------------------Auto
    DDR 2 overvoltage control----------------Normal
    PCI-e overvoltage control----------------Normal
    FSB overvoltage control------------------Normal
    (G)Mch Overvoltage control--------------Normal
    Loadline Calibration---------------------- Auto
    Cpu Voltage control----------------------Normal

    When i boot with these settings, everything runs great, but when i change 'cpu host clock control' to enabled, with the fsb on stock setting (333),

    my pc restarts (1 sec post), restarts again, and changes back to 'disabled'. I think this is weird, because i'm not really changing anything.

    I've also tried to put the 5 (C1E/EIST/TM2/memory protect/virtu. technology) functions on disabled, which didn't work.

    I've heard that the external hdd can cause problems, and therefore you will have to put 'Legacy usb storage detect' on disabled. It didn't work.
    I don't even have usb devices connected to my pc.

    ..I hope that someone can help me.

    ps. That cmos-battery is ok, because it saves all the other settings perfectly.

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: x48-ds4 oc problem

    Well for starters you need to manually enter your Memory Voltage, Likely 2.1V

    Then you need to add some MCH voltage, likely +.1 or .2 for 4 GB. is this 2x2 or 4x1?

    If you plan to overclock you should disable EIST And C1E that is all.

    Have you ran memtest86+ on your ram to be sure one of the sticks is not DOA? It happens, Here is the app mentioned >>>
    Memtest86+ - Advanced Memory Diagnostic Tool

    You should have no issues with these settings >>>

    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ [9]
    Fine CPU clock ratio____________+0.5
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________ [333]
    PCI Express Frequency (Mhz)_______ [100] << Please manually set now since you plan to overclock

    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [2.40] << = 799Mhz Ram Freq
    DRAM Timing Selectable_______ SPD __ [Manual]

    Performance Enhance = [Standard]

    CAS Latency Time________________5
    Dram RAS# to CAS# Delay_________ 5
    Dram RAS# Precharge Delay_______5
    Precharge Delay (tRAS)__________ 18

    You can leave the below on Auto for now if you like, but it is best to set Refresh to Act at least
    ACT to ACT Delay (tRRD)_________ 3-4
    Rank Write to READ Delay________ 9-11
    Write to Precharge Delay_________3-5
    Refresh to ACT Delay______________ 52-65
    Read to Precharge Delay__________ 3-6
    Static tRead Value_______________ 7-10
    Static tRead Phase Adjust________ 1-31 << Leave on AUTO or Zero or 1-31

    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.300V] = 2.1V << Check your ram sticker and set to spec on sitcker, likely 2.1V
    PCI-E OverVoltage Control_ [+0.1V] << For stability
    FSB OverVoltage Control___ [+0.1V] << For stability
    (G)MCH OverVoltage Control [+0.1V - +0.15V - +0.2V]
    CPU Voltage Control_______ [1.25] << Likely a bit high for your default CPU speed, but you plan to overclock anyway. if not lower it until it fails. Or leave on AUTO for now

  3. #3
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    Default Re: x48-ds4 oc problem

    Thanks for your reaction!! I will test it soon. My memory is 2x2. I'll let you know if it works :)

  4. #4
    Lsdmeasap's Avatar
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  5. #5
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    Default Re: x48-ds4 oc problem

    It didn't work unfortunately :(. However, i saw something interesting. With the settings in my first post, the post screen showed up for 1 second and rebooted. With your settings it rebooted and just before the post screen would pop up, it rebooted again.

    It keeps the voltage and the change in timings though :). The only thing that keeps going back to disabled is the 'cpu host clock control'.

    I don't think it's a memory problem, because everything runs great. The memtest showed no errors.

  6. #6
    Lsdmeasap's Avatar
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    Default Re: x48-ds4 oc problem

    What do you have CPU voltage set to now?

    When you flashed to the newer BIOS what version was it, and did you load Optimized Defaults and save and apply and reboot before going back into the BIOS to make your needed changes?

    If you did not do that then your flash was improper and could likely be the issue. If you do reflash DO NOT USE @BIOS.

    You can likely try doing this now without a reflash but it may need one though since you have been using it.

    But I would try that, Go into BIOS select Load Optimized Defaults, Save and apply and reboot BACK into BIOS. DO NOT LOAD WINDOWS

    Make all needed disk changes, then reboot back into BIOS again and make your MIT overcl**** changes again and see if that gets you going

    Have you at all tried a large jump? Like right to 400 FSB? If not you should maybe try that as well >>>

    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ [9]
    Fine CPU clock ratio____________+0.5
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________ [400]
    PCI Express Frequency (Mhz)_______ [100] << Please manually set now since you plan to overclock

    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [2.00] << = 800Mhz Ram Freq @ 1:1
    DRAM Timing Selectable_______ SPD __ [Manual]

    Performance Enhance = [Standard]

    CAS Latency Time________________5
    Dram RAS# to CAS# Delay_________ 5
    Dram RAS# Precharge Delay_______5
    Precharge Delay (tRAS)__________ 18

    You can leave the below on Auto for now if you like, but it is best to set Refresh to Act at least
    ACT to ACT Delay (tRRD)_________ 3-4
    Rank Write to READ Delay________ 9-11 << try setting to 6 as well for now
    Write to Precharge Delay_________3-5
    Refresh to ACT Delay______________ 52-65
    Read to Precharge Delay__________ 3-6
    Static tRead Value_______________ 7-10
    Static tRead Phase Adjust________ 1-31 << Leave on AUTO or Zero or 1-31

    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.300V] = 2.1V << Check your ram sticker and set to spec on sitcker, likely 2.1V
    PCI-E OverVoltage Control_ [+0.1V] << For stability
    FSB OverVoltage Control___ [+0.1V] << For stability
    (G)MCH OverVoltage Control [+0.1V - +0.15V - +0.2V]
    CPU Voltage Control_______ [1.33] << Your CPU may need more to boot may not. I use 1.325 +/- for 4.0-4.2 on my 45nm CPU so I just put 1.33 as a midway point. Depends also on how much Vdrop and Vdroop you have. You can easily just set to 1.35 and boot it up and see if the issue remains as 1.35 should surely be enough for any 45nm to run 3.8 to boot up

  7. #7
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    Default Re: x48-ds4 oc problem

    Thanks! I will try it now. The voltage is set @ 1.10. I'll get back 2 you with the results :)

  8. #8
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    Default Re: x48-ds4 oc problem

    oh..forgot something :) i flashed the bios from version f1 to f2 and i used @bios. I did load the optimized defaults and rebooted, but i'll try it again through bios.

  9. #9
    Lsdmeasap's Avatar
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  10. #10
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    Default Re: x48-ds4 oc problem

    Hi, i have the same problem as the OP. Keeps resetting the host control to disabled. I have same CPU and mobo as the OP and on stock cooling, i would like to get to 3ghz OC.

    my ram is kingston 4gb that exact ram:
    Kingston Technology Company - Kingston Memory Search - Search Results for: KVR800D2N5K2/4G

    so i think the voltage of it is 1.8v? umm wat settings would you recommend for my ram. and also timings..

    Should i use all the other settings the same as the OP.?
    Last edited by bj07; 08-29-2008 at 10:49 PM.

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