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Thread: Q9550 + EP45-UD3P, need help hitting 4 Ghz please




  1. #51
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    Yeah they aren't much of a looker, but they are solid RAM sticks :)

    LSD, do you have any input to share on this thread based on what you've read so far?

    Thanks :)
    CPU: i5 2500K @ 4.5GHz (45x100 1.35V) ~ BIOS 10.5
    Motherboard: MSI Z77A-GD65
    Memory: 2x4GB Corsair Vengeance DDR3-1600 9-9-9-24
    GPU: XFX Radeon 7950 Black Edition 3GB
    Soundcard: Native Instruments Audio 8 DJ
    HDD: WD 1TB Caviar Blue
    Cooling: Zalman CNPS10X Extreme
    PSU: Seasonic X-650 80+ Gold
    Case: Corsair Obsidian 650D

    OS: Windows 7 Ultimate x64
    Gamepad: Microsoft XBOX360 Wireless Controller + Wireless Gaming Receiver
    Wireless Set: Logitech Cordless Desktop LX710
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  2. #52
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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  3. #53
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    Chike, Jim, LSD,

    I tried 3.6 directly from 3.2 and it failed, here is all the information you asked:

    My current BIOS settings:

    PCI Express Frequency (Mhz) --------------- : [100]

    Performance Enhance ------------------- : [Standard]
    Extreme Memory Profile ---- (X.M.P.) ---- : [Disabled]

    Motherboard Voltage Control
    CPU
    CPU Vcore --------------- 1.2500 ------ : 1.3500
    CPU Termination ---------- 1.200V* ----- : 1.200
    CPU PLL ------------------ 1.500V* ----- : 1.570

    MCH/ICH
    MCH Core ---------------- 1.100V ------- : 1.240

    ICH I/O ------------------ 1.500V ------- : 1.500
    ICH Core ----------------- 1.100V ------- : 1.100

    DRAM
    DRAM Voltage ------------ 1.800V ------- : 2.100

    Advanced Settings

    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]

    Integrated Peripherals
    Legacy USB Storage Detect --------------- : [Disabled]

    Here's a screenshot with all the applications you wanted including the error from IBT:

    Imageshack - unledlc.png

    For now, I've set back the CPU clock to the original 2.8 and stock voltages, but I left all the BIOS settings as is, as I wait for your recommendations.
    CPU: i5 2500K @ 4.5GHz (45x100 1.35V) ~ BIOS 10.5
    Motherboard: MSI Z77A-GD65
    Memory: 2x4GB Corsair Vengeance DDR3-1600 9-9-9-24
    GPU: XFX Radeon 7950 Black Edition 3GB
    Soundcard: Native Instruments Audio 8 DJ
    HDD: WD 1TB Caviar Blue
    Cooling: Zalman CNPS10X Extreme
    PSU: Seasonic X-650 80+ Gold
    Case: Corsair Obsidian 650D

    OS: Windows 7 Ultimate x64
    Gamepad: Microsoft XBOX360 Wireless Controller + Wireless Gaming Receiver
    Wireless Set: Logitech Cordless Desktop LX710
    Monitor: LG 42LE5300 42" Led FHDTV [1080p @ 60Hz]

  4. #54
    Chike is offline Senior Member
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    GFlops look good, Have you tried running Prime95 blend torture?
    Try MCH Reference 0.74, 0.72, 0.7.

  5. #55
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    Haven't tried P95 yet as this was just a preliminary test to check the CPU's stability, I'll try it again with MCH reference lower, I should not touch VTT at this time, correct?
    CPU: i5 2500K @ 4.5GHz (45x100 1.35V) ~ BIOS 10.5
    Motherboard: MSI Z77A-GD65
    Memory: 2x4GB Corsair Vengeance DDR3-1600 9-9-9-24
    GPU: XFX Radeon 7950 Black Edition 3GB
    Soundcard: Native Instruments Audio 8 DJ
    HDD: WD 1TB Caviar Blue
    Cooling: Zalman CNPS10X Extreme
    PSU: Seasonic X-650 80+ Gold
    Case: Corsair Obsidian 650D

    OS: Windows 7 Ultimate x64
    Gamepad: Microsoft XBOX360 Wireless Controller + Wireless Gaming Receiver
    Wireless Set: Logitech Cordless Desktop LX710
    Monitor: LG 42LE5300 42" Led FHDTV [1080p @ 60Hz]

  6. #56
    Chike is offline Senior Member
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    VTT at 1.2 anyway, no need to touch it, just the reference.
    Static tRead Value is aoto i believe and set 0(disabled). After you get more stable set it 10 or 9 and test again.

  7. #57
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    Cool, Thanks, I'll try that, 1.35 Vcore seems sufficient enough for 3.6 right? :)
    CPU: i5 2500K @ 4.5GHz (45x100 1.35V) ~ BIOS 10.5
    Motherboard: MSI Z77A-GD65
    Memory: 2x4GB Corsair Vengeance DDR3-1600 9-9-9-24
    GPU: XFX Radeon 7950 Black Edition 3GB
    Soundcard: Native Instruments Audio 8 DJ
    HDD: WD 1TB Caviar Blue
    Cooling: Zalman CNPS10X Extreme
    PSU: Seasonic X-650 80+ Gold
    Case: Corsair Obsidian 650D

    OS: Windows 7 Ultimate x64
    Gamepad: Microsoft XBOX360 Wireless Controller + Wireless Gaming Receiver
    Wireless Set: Logitech Cordless Desktop LX710
    Monitor: LG 42LE5300 42" Led FHDTV [1080p @ 60Hz]

  8. #58
    Chike is offline Senior Member
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    Yes at least GFlops look like in range, try some more though to be sure.

  9. #59
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    Tried Vcore 1.3625 (1.344 in CPU-Z) and MCH Ref 0.74, got the same error in IBT... GFlops were 47... failed on the second pass
    Last edited by Zach_; 05-05-2011 at 03:07 AM.
    CPU: i5 2500K @ 4.5GHz (45x100 1.35V) ~ BIOS 10.5
    Motherboard: MSI Z77A-GD65
    Memory: 2x4GB Corsair Vengeance DDR3-1600 9-9-9-24
    GPU: XFX Radeon 7950 Black Edition 3GB
    Soundcard: Native Instruments Audio 8 DJ
    HDD: WD 1TB Caviar Blue
    Cooling: Zalman CNPS10X Extreme
    PSU: Seasonic X-650 80+ Gold
    Case: Corsair Obsidian 650D

    OS: Windows 7 Ultimate x64
    Gamepad: Microsoft XBOX360 Wireless Controller + Wireless Gaming Receiver
    Wireless Set: Logitech Cordless Desktop LX710
    Monitor: LG 42LE5300 42" Led FHDTV [1080p @ 60Hz]

  10. #60
    Chike is offline Senior Member
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    Default Re: Q9550 + EP45-UD3P, need help hitting 4 Ghz please

    try 0.8 then see if it's better if not set MCH reference default and try the CPU reference.

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