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Thread: Overclocking a Q8300 on a Gigabyte EP43t MB




  1. #11
    Join Date
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    Ok, so, I ran the the first test on IBT with this settings;

    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 ----------------- : [Disabled]
    CPU Vcore --------------- 1.2875v ---- : [1.3-1.365] <- 1.3625 there was no 1.365, and the next voltage (1.36875v) caused a memomry dump
    CPU Termination --------- 1.200V ----- : [1.22-1.26] <- 1.22v
    CPU PLL ----------------- 1.550V ----- : [1.55-1.57] <- 1.55, because there is no 1.57, the next voltage after 1.55 is 1.650v
    
    
    MCH/ICH
    MCH Core ---------------- 1.100V ------- : [1.2-1.24] <- 1.240v
    
    DRAM
    DRAM Voltage ------------ 1.500V ------- : [1.5-1.6] <- 1.600v
    ... and after the first round (10 rounds, maximum memory use, 58°C Full Load), I got the "System is unstable" message, and I only got 37 GFlops.
    Well... by the time I was writing this, I tried to make my PC to run again, but it only gave me another memory dump... Any ideas? (with the same settings described above)
    Does the GPU OC affect in any way the CPU OC?
    Tell me if you need more information about this... thanks
    -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. #12
    Chike is offline Senior Member
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    Try 1.26v MCH Core, 1.24-1.26v CPU Termination, and a bit more Vcore.
    If possible post screen capture of MemSet main window and ET6 Advanced Voltage tab.
    Do you get a red warning when you enter BOS M.I.T? and what is Vcore reading in CPU-Z?

  3. #13
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    Here are the screen shots... this is before applying the new voltage values you gave me in your last post...

    DIMM 1-3 (Corsair)



    DIMM 4 (Kingston)



    ET6 Voltage Tab



    Now I'm going to try the new settings and, by the way, I didn't get the Red Screen at the BIOS Start nor the M.I.T. and CPU-Z Vcore reading is 1.328v.. here's a screen

    -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. #14
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    Chile
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    I made a ITB test (5 times, maximum memory use) and it passed! I got 34 Gflops... Is that ok?... More documentation for your analisys...

    BIOS Settings

    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 ----------------- : [Disabled]
    CPU Vcore --------------- 1.2875v ---- : [1.37500v]
    CPU Termination --------- 1.200V ----- : [1.240v  ] 
    CPU PLL ----------------- 1.550V ----- : [1.550v  ] 
    
    
    MCH/ICH
    MCH Core ---------------- 1.100V ------- : [1.260v] 
    
    DRAM
    DRAM Voltage ------------ 1.500V ------- : [1.600v]
    SS

    IBT and CoreTemp



    ET& Voltage tab and CPU-Z CPU tab



    DIMM 4 (Kingston)



    DIMM 1 - 3 (Corsair)



    Thank you soooo much for your help! Now, waiting for the answer if those 34 Gflops are Ok :D
    -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

  5. #15
    Chike is offline Senior Member
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    No 34 are too low. I just scale my 21.2GFlops at 400x8 to yours 400x7 = 19.875GFlops, time 2 (you have 4 cores I have 2) and it's 39.75, so you need to have 39 maybe more.
    Try more vcore see if that help.

  6. #16
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    Ok, so I added a little bit more Voltage to the Vcore (1.4000v is the actual value), and in IBT I'm getting more GFlops (36,6 average). So I'm going to add a little bit more Vcore, to see if the CPU can reach the 39 mark, or pass it.
    -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

  7. #17
    Chike is offline Senior Member
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    I think 1.4v should be plenty at 3GHz.
    Try more CPU termination 1.26-1.32v.
    What are the options/steps for CPU/MCH references?

  8. #18
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    I was trying with 1,45v on Vcore now, and the CPU reached 37,6 average... After the IBT I'll check the values on CPU and MCH references, and i'll turn up the CPU termination... Do you think that I should lower the 1,45v Vcore value to 1,4v? Or should I just leave it on 1,45v? ( The IBT test was succesful with an 36,8 average GFlops)

    Options or steps on MCH references are:
    -Actual value is 0.760v and it has: 0.758v, 0.778v, 0798v, 0.838v, 0,878v, 0.918v, 0.958v, 0.998v, 1.038v and 1.078v(the highest value)

    and CPU references are:
    -Actual value is 0.805 and it has: 0.782v, 0.800v, 0.823v and 0.843v (highest value)(in fact, these are all the possible values displayed by the BIOS)
    -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

  9. #19
    Chike is offline Senior Member
    Join Date
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    Location
    Israel
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    Sorry I should have told you to check with VTT(CPU Termination) set to 1.2v, was it on 1.26v?
    The refereces scale with VTT but the default value as well as target values in ET6 are shown for 1.2v VTT.
    Since there was not much change from 1.4v set it back to 1.4v or 1-2 ticks higher for now.
    Try VTT up to 1.32v see if it changes anything.
    Can you run MaxxMEM² - PreView to see how memory performance look like?

  10. #20
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    Default Re: Overclocking a Q8300 on a Gigabyte EP43t MB

    ok, so I set vcore to 1.41250v (2 ticks higher than 1.400v) and CPU Termination to 1,320v. Now I will run the IBT and the MaxxMEM Preview too
    -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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