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Thread: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC




  1. #41

    Default Re: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC

    Thanks for the info on the temps Chike, now I'm not so worried. Prime95 blend temps don't get near as high and Small / Large FFT's aren't as high.

    I ran Prime95 blend last night for 11 hours - 3 cores made it the whole way without errors but my 3rd core had an error after 3 1/2 hours.

    I'm wanting to gain stability at this speed (471x8.5) What should I start using for my CPU Clock Skew (ps) & MCH Clock Skew (ps)?? Think I need more than 1.26v on the MCH?

    Here is my current settings I am using in a template below -

    Code:
      MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster -------------- : [Auto] 
    CPU Clock Ratio ---------------------- : [8]
    Fine CPU Clock Ratio ----------------- : [0.5] <-- ignore if not available
    CPU Frequency ---------------------: 4004 <-- this is set by your bios
    
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control --------------- : [Enabled]
    CPU Host Frequency (Mhz) --------------: [471]
    PCI Express Frequency (Mhz) ---------- : [100] <--- Set to 100, never leave this on Auto
    
    C.I.A.2 ------------------------------ : [Disabled]
    
    Advanced Clock Control ------- [Press Enter]
    CPU Clock Drive ---------------------- : [800]
    PCI Express Clock Drive -------------- : [900]
    CPU Clock Skew (ps) ------------------ : [???]
    MCH Clock Skew (ps) ------------------ : [???]
    
    DRAM Performance Control
    Performance Enhance ------------------- : [Standard] <--- set to STANDARD when overclocking
    Extreme Memory Profile --- (X.M.P.) --- : [Disabled] <--- Leave this Disabled
    (G)MCH Frequency Latch ---------------- : [400]
    System Memory Multiplier -------------- : [2.00D] <-- this is the setting that you are using
    Memory Frequency (Mhz) ---------------- : [942]
    DRAM Timing Selectable ---------------- : [Manual] <-- set to MANUAL for overclocking
    
    Standard Timing Control
    CAS Latency Time -------- ?? ---------- : [5]
    tRCD ------------------- ?? ---------- : [5]
    tRP --------------------- ?? ---------- : [5]
    tRAS ------------------- ?? ---------- : [15]
    
    Advanced Timing Control
    tRRD ------------------- ?? ---------- : [Auto]
    tWTR ------------------- ?? ---------- : [Auto]
    tWR --------------------- ?? ---------- : [Auto]
    tRFC ------------------- ?? ---------- : [Auto]
    tRTP ------------------- ?? ---------- : [Auto]
    Command Rate (CMD) -------------------- : [Auto] <--- Auto or 0 is OK
    
    Driving Strength Profiles
    Driving Strength --------- : 1066 Mhz
    
    Channel A
    Static tRead Value --------------------- : [9]
    tRD Phase0 Adjustment ------------------ : [Auto] <-- leave this and below set to AUTO
    tRD Phase1 Adjustment ------------------ : [Auto]
    tRD Phase2 Adjustment ------------------ : [Auto]
    tRD Phase3 Adjustment ------------------ : [Auto]
    Trd2rd(Different Rank) ----------------- : [Auto]
    Twr2wr(Different Rank) ----------------- : [Auto]
    Twr2rd(Different Rank) ----------------- : [Auto]
    Trd2wr(Same/Diff Rank) ----------------- : [Auto]
    Dimm1 Clock Skew Control --------------- : [Auto] ps
    Dimm2 Clock Skew Control --------------- : [Auto] ps
    
    Channel B
    Static tRead Value --------------------- : [9]
    tRD Phase0 Adjustment ------------------ : [Auto] <-- leave this and below set to AUTO
    tRD Phase1 Adjustment ------------------ : [Auto]
    tRD Phase2 Adjustment ------------------ : [Auto]
    tRD Phase3 Adjustment ------------------ : [Auto]
    Trd2rd(Different Rank) ----------------- : [Auto]
    Twr2wr(Different Rank) ----------------- : [Auto]
    Twr2rd(Different Rank) ----------------- : [Auto]
    Trd2wr(Same/Diff Rank) ----------------- : [Auto]
    Dimm1 Clock Skew Control --------------- : [Auto] ps
    Dimm2 Clock Skew Control --------------- : [Auto] ps
    
    Motherboard Voltage Control
    CPU
    Voltage Types------------ Normal -------- Current -----
    Load-Line Calibration ----------------- : [Disabled]
    CPU Vcore --------------- ?.????? ---- : [1.41875v] 
    
    CPU Termination --------- ?.???V* ----- : [1.28v] 
    CPU PLL ----------------- ?.???V* ----- : [1.59v] 
    
    CPU Reference ----------- ?.???V* ----- : [.810v] (.76 @ 1.2 vtt - default) 
    CPU Reference2 ---------- ?.???V* ----- : [Auto] (What should I try for CPU Ref 2?)
    
    MCH/ICH
    MCH Core ---------------- ?.???V ------- : [1.26v] 
    MCH Reference ----------- ?.???V ------- : [.850v] (.80 @ 1.2 vtt - one notch up)
    MCH/DRAM Ref ------------ ?.???V ------ : [Auto]
    ICH I/O ----------------- ?.???V ------- : [Auto] 
    ICH Core ---------------- ?.???V ------- : [1.1] 
    DRAM
    DRAM Voltage ------------ ?.???V ------- : [2.0v] 
    DRAM Termination -------- ?.???V ------- : [Auto]
    Channel A Reference ----- ?.???V ------- : [Auto]
    Channel B Reference ----- ?.???V ------- : [Auto]
    
    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 -------------- : [Enabled] 
    
    Integrated Peripherals
    Legacy USB Storage Detect ------------- : [Enabled]
    Thanks in advance
    Last edited by RoscoP; 05-11-2010 at 03:42 AM.

  2. #42
    Chike is offline Senior Member
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    Default Re: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC

    Unlikely that your system will ever get hotter than Prime85 temps. Which FFT size caused the failure?

  3. #43

    Default Re: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC

    The 3rd core got a rounding error after 3 hours of doing blend. Oh, finally did a CPU-Z Validator - ;~)

  4. #44
    Chike is offline Senior Member
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    Default Re: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC

    I have no green idea what FFT size is running "after 3 hours".

  5. #45

    Default Re: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC

    Sorry not to describe it right. The 3rd core failed after 3 hours of doing blend, not large or small FFT.

  6. #46
    Chike is offline Senior Member
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    Default Re: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC

    LOL and I am going to run Prime95 blend now to see what FFT size it is? Next time remember the size. Likely to be large but you never know.

  7. #47

    Default Re: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC

    I'm confused. What does Prime95 blend do? Can you determine the size when you run blend?

  8. #48
    Chike is offline Senior Member
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    Default Re: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC

    Each iteration has the FFT size loged in seperate wundow the last one before the failure caused it.

  9. #49

    Default Re: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC

    Oh man I should have taken a print screen. I will definitely do that next time. I'm off to game for awhile tonight, I'm going to test for stability again overnight.

    I increased my VTT, we'll see if it helps. I think my Vcore is a bit high for 4Ghz (1.41875v in BIOS, ~1.36v in Windows) What do you think?

  10. #50
    Chike is offline Senior Member
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    Default Re: Q9550 E0 + GA-EP45-UD3P 1.6 - Help me optimize my OC

    No just the size of FFT in the last line before failure, no need for a screenshot.

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