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Thread: Overclocking a Q8300 on a Gigabyte EP43t MB




  1. #31
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    I mean, I shut down my pc for a moment, maybe a minute or two... Or windows reset. I use the reset button only when my pc freezes horribly
    Last edited by pitin; 01-08-2011 at 01:48 PM.
    -Intel Core 2 Quad Q8300 @2.5 Mhz
    -Gigabyte EP43T-USB3 Motherboard
    -Award BIOS F2 version
    - 3x 1GB DDR3 @1.333 Mhz XMS3Corsair RAMs
    - 1x 2GB DDR3 @1.333 Mhz ValueRAM Kingston RAM
    - ATI Sapphire HD5750 1GB GDDR5
    - Cooler Master V8
    - OCZ 700W StealthXStream PSU
    - Windows 7 x64

  2. #32
    Chike is offline Senior Member
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    To me it looks like your settings are in range for current OC but you can never know.
    You may try to mess with CPU/MCH refernces, those are for stability, so either more or less would help.
    These two references are derived from VTT. To avoid any confusion always change them with VTT set to 1.2, and also list ir as such in the templete if set manually.
    Forexample
    Code:
    MCH Reference------------ 0.760v ------- : [0.893v] (0.8v @ 1.2v VTT)
    Remember the base value at 1.2v VTT is the default value shown to the left (0.85 for CPU reference and 0.760 for MCH Core).
    Only change one of them at a time, at the following way:
    1. Set VTT to 1.2v.
    2. Set the reference to it's desired value.
    3. Set VTT back to the value it had before.
    You will notice the manually set reference value scale with VTT.

    Start with MCH reference, higher values than default, then lower than default if none of those helped.

  3. #33
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    Chike! I've made it, the only thing that I needed to do, was load "Optimal Settings", reset, and put the this values:

    Code:
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control --------------- : [Enabled]
    CPU Host Frequency (Mhz) --------------: [400]
    
    DRAM Performance Control
    System Memory Multiplier -------------- : [3.33D]
    
    Motherboard Voltage Control
    CPU
    Voltage Types------------ Normal -------- Current -----
    Load-Line Calibration ----------------- : [Enabled]
    CPU Vcore --------------- 1.2875v ---- : [1.41250v]
    CPU Termination --------- 1.200V ----- : [1.360v  ] 
    CPU PLL ----------------- 1.550V ----- : [1.550v  ]
    CPU Reference-------------0.805v ------: [0.805v  ] Auto
    
    
    MCH/ICH
    MCH Core ---------------- 1.100V ------- : [1.260v]
    MCH Reference------------ 0.760v ------- : [0.760v] Auto
    
    DRAM
    DRAM Voltage ------------ 1.500V ------- : [1.600v]
    I think that the main thing, was to load the Optimal Settings, reset, and then, put those. Everything was succesful, IBT, Prime95 and temperatures didn't pass from 57 C. I made 5 IBT tests(maximum, 10 times) with shutdowns in between, and, 2 high Prime95 and 1 blend for a few hours and nothing, no more memory dumps, no high temperatures... everything OK :D!

    So you say... that it would be a good idea to turn up the FSB to see how much can the CPU and the MB hold up? Or would be good to leave it just here? If you need screenshots, advice me... and btw Thank you again for your patience :)
    -Intel Core 2 Quad Q8300 @2.5 Mhz
    -Gigabyte EP43T-USB3 Motherboard
    -Award BIOS F2 version
    - 3x 1GB DDR3 @1.333 Mhz XMS3Corsair RAMs
    - 1x 2GB DDR3 @1.333 Mhz ValueRAM Kingston RAM
    - ATI Sapphire HD5750 1GB GDDR5
    - Cooler Master V8
    - OCZ 700W StealthXStream PSU
    - Windows 7 x64

  4. #34
    Chike is offline Senior Member
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    You can save BIOS profiles by pressing F11 at main BIOS screen to save different settings, and restore them later with F12.
    Before you try higher FSB you may try to set lower tRD(Static tRead Value in BIOS, Performance Level i MemSet).
    Auto set it to 9 for you I think, so try 8 on both channels and see if it's possible. This should result in a bit higher bandwidth and lower latency, no change in write. Compare results with MaxxMEM.

    You may squeeze another 0.1GHz with 414-416MHzFSB, question is if the memory is up to it. If it is not, try SMM 3.20B instead 3.33D.

  5. #35
    kick's Avatar
    kick is offline Senior Member
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    Yes starting with ref voltages entered manually after optimised defaults is allways a good idea.

    The 3.9ghz you originally mentioned for an 8300 must be close to a world record on air,

    For 24/7 use on air ,the best i have managed is 3.5ghz on Q8200 (500/2000 fsb)x7
    or 4Ghz with q8400 x8.

    I dont have a q8300, but its easy enough to simulate x7.5 multiplier.

    those sort of speeds,and fsb speeds are very memory /mch settings dependent.

    With the 43T mbrd and ddr3 Id expect 400/1600 fsb(3ghz cpu) to be easily obtainable.

    425/1700 (3.19 ghz cpu) with a little adjustment.

    above that may need memory timing clockdown and some mch voltage adjustment.

    Im only running 400/1600 fsb right now because my 667mhz(2x2gb) and 800mhz(2x2gb)
    combined for 8G wont run easily above 800mhz.
    However with an ocz ssd and the extra memory for the data swapfile and bandwidth,the whole thing still feels faster than when running with 4gb mem regular hdd and 4ghz on cpu.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  6. #36
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    yeah, I guess that it wouldn't be so hard to simulate those 3.5 ghz, but, for now, I'm still working on keeping the stability of the CPU, because, again, I get memory dumps... so now I'm trying with lower voltages on Vcore(1,4v ) and CPU Termination a little bit higher (1,380v) and until now... IBT tests have been successful and the temps have gone a little bit lower ( 55 maximum )
    -Intel Core 2 Quad Q8300 @2.5 Mhz
    -Gigabyte EP43T-USB3 Motherboard
    -Award BIOS F2 version
    - 3x 1GB DDR3 @1.333 Mhz XMS3Corsair RAMs
    - 1x 2GB DDR3 @1.333 Mhz ValueRAM Kingston RAM
    - ATI Sapphire HD5750 1GB GDDR5
    - Cooler Master V8
    - OCZ 700W StealthXStream PSU
    - Windows 7 x64

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