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Thread: Sometimes my motherboard reboots before starting Windows.




  1. #1
    Join Date
    Sep 2008
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    Default Sometimes my motherboard reboots before starting Windows.

    This is my problem, from time to time (once in 20-40 times) when I connect my computer, after the post, before Windows Screen and table summary (PCI Devices and IRQ), just after memory and hard disk information (POST), my computer reboots. Its the same thing it does when electricity has been swtiched off.

    After rebooting my computer works well and all tests I have done, seem to be ok.

    What do you think about it?

    Thanks

    Robust Graphics Booster.....Turbo
    CPU Clock Ratio .................9x
    CPU Host Control ...............Enable
    CPU Host Frecuency...........400
    PCI Express.......................101
    CIA2..................................Disabled
    Perfomance Enhance..........Standard
    System Memory Multiplier...2.00D


    CAS Latency.......................6 [5]
    DRAM RAS to CAS Delay........6[5]
    DRAM RAS Precharge...........6[5]
    Precharge Delay (tRAS).......18[18]

    Cas Latency Time ..............6 [5]
    DRAM RAS to CAS Delay ......6 [5]
    DRAM RAS Precharche .........6[5]
    Precharge delay(tRAS)..........18[18]

    FSB Overvoltage Control........+0.15V ==> Is it too much?
    (G)MCH Overloltage Control...+0.20V ==> Is it too much?
    Loadline Calibration...............Disabled
    CPU Voltage Control..............1.30625V ==> Between 1.248-1.264V into Windows

    ==> The rest of values are [Default]
    Last edited by Alicantino32; 01-21-2009 at 12:37 AM.

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Sometimes my motherboard reboots before starting Windows.

    Please link to your ram, and let us know how many sticks of it you have. And then post your full specs (CPU and board). And then we can better advise you

  3. #3
    Join Date
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    Default Re: Sometimes my motherboard reboots before starting Windows.

    Quote Originally Posted by Lsdmeasap View Post
    Please link to your ram, and let us know how many sticks of it you have. And then post your full specs (CPU and board). And then we can better advise you
    Ups! Sorry!

    Intel E8400 3.0 overclocked 3.6 (400x9)
    GA X48-DQ6 (F6 Bios )
    2x2 Gb DDR2 800 Kingston Value RAM

    Thanks!

  4. #4
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Sometimes my motherboard reboots before starting Windows.

    You may not need that much FSB voltage, and you may need a little more MCH voltage.

    What is your FULL Settings you are using, and what BIOS? >>>
    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

  5. #5
    Join Date
    Sep 2008
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    Default Re: Sometimes my motherboard reboots before starting Windows.

    Robust Graphics Booster___________ [Turbo]
    CPU Clock Ratio ____________
    [9x]
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________
    [400]
    PCI Express Frequency (Mhz)_______ [101] or [100] with the same problem
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [2.00D]

    DRAM Timing Selectable ______ SPD __ [Manual]

    Performance Enhance = [Standard]

    CAS Latency Time________________ 6 [5] or [Auto] with the same problem
    Dram RAS# to CAS# Delay_________ 6 [5] or [Auto] with the same problem
    Dram RAS# Precharge Delay_______ 6 [5] or [Auto] with the same problem
    Precharge Delay (tRAS)__________ 18 [18] or [Auto] with the same problem

    ACT to ACT Delay (tRRD)_________ [Auto]
    Rank Write to READ Delay________ [Auto]
    Write to Precharge Delay_________ [Auto]
    Refresh to ACT Delay______________ [Auto]
    Read to Precharge Delay__________ [Auto]
    Static tRead Value_______________ [Auto]
    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__ [Auto] ==> Lavalys Everest reports "1.85v"
    PCI-E OverVoltage Control_ [Auto]
    FSB OverVoltage Control___ [+0.15V]
    (G)MCH OverVoltage Control [+0.25V]
    CPU Voltage Control_______ [1.30625v]

    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Enabled]
    CPU EIST Function.........................: [Enabled]
    Virtualization Technology................: [Enabled]

    Integrated Peripherals
    Legacy USB Storage Detect___________________[Disabled]


    ==================================================

    Im using F8a BIOS version. I have 2x2Gb DDR2 800 1.8v Kingston Value RAM.

    I have tried too with all memory timming values at "Auto" but nothing changes. Randomly, just AFTER the "Memory runs at dual channel" message, my computer reboots or drops off then switches on, enters to Windows and all work well.

    All tests are ok. Orthos for 4-5 hours, Memtest....

    Now, Im using the default cpu speed (333x9=3.0Ghz) and I am happy but I think it is worth trying overclock if it is stable because CPU seems to be fine at 3,6Ghz.

    Yesterday, after "Memory runs at dual channel" my computer just freezed and I had to push CTRL+ALT+DEL but after that all worked well. When Im in Windows, I NEVER have any problem. I think it is "cold boot problem".

    Thanks for your reply,

    Anyone?
    Last edited by Alicantino32; 01-29-2009 at 01:08 PM.

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