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Thread: ED45-UD3p with 8400 Dual Core overclock help! :)




  1. #51
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    Default Re: ED45-UD3p with 8400 Dual Core overclock help! :)

    (I'm back to 3.50 Ghz - with 2.66D of SSM. Seems to be my current limit.)

  2. #52
    Chike is offline Senior Member
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    Default Re: ED45-UD3p with 8400 Dual Core overclock help! :)

    Quote Originally Posted by jake8078 View Post
    Actually, looking back on that I notice that, in 2.40B, I'm set back down to 333x8.5. It must've had trouble rebooting, and reverted back to that clock. I tried resetting it to 418x8.5, and then 400x8.5 -- no luck with either. I had to set the SMM back to 2.66D to get stability back.
    tRD setting depend on ratio between bus frequency, memory clock, and CAS latency.
    Higher bus frequency will require higher tRD, example: 333MHz FSB with DDR-1066 wil be able to use lower tRD then 400MHz FSB DDR-1066 with same CAS latency.
    Higher memory clock will require lower tRD, example, 400MHz FSB, DDR-1066 may use lower tRD then 400MHz FSB, DDR-800, with same CAS latency.
    Lower CAS latency require lower tRD, example: 400MJz FSB DDR-1066 CL 5 may use lower tRD then 400MJz FSB DDR-1066 CL 6.

    With SMM 2.40B memory frequency is lower, with the same bus frequency and CAS latency, it may need higher tRD.

    When BIOS detecds bad settings it begins looping, twice or more times, sometimes infinite loop. When you spot a boot loop, immeditely enter BIOS when it finaly boots, a red warning will appear, and fix the settings.
    If it is caust at infinite loop, first try to turn off the PSU for 15-20 seconds, the power up again, repeat it twice if still not booting. If all this fail a CMOS clear will be needed.


    Quote Originally Posted by jake8078 View Post
    (I'm back to 3.50 Ghz - with 2.66D of SSM. Seems to be my current limit.)
    If it;s stable, save BIOS profile.
    This CPU and ram looks quite promissing, you're not gonna stop at 16.6% OC are you?
    There is another thread OCing the same CPU and board, we need to get ahead of them :)
    Ga Ep45 UD3P rev 1.0 Bios assistance

  3. #53
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    Talking Re: ED45-UD3p with 8400 Dual Core overclock help! :)

    There is another thread OCing the same CPU and board, we need to get ahead of them :)
    Ga Ep45 UD3P rev 1.0 Bios assistance
    No way, he's got a better overclocking coach
    May the best team win
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
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    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
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  4. #54
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    Default Re: ED45-UD3p with 8400 Dual Core overclock help! :)

    Thanks for the description / explanation -- understood.

    Quote Originally Posted by Chike View Post
    This CPU and ram looks quite promissing, you're not gonna stop at 16.6% OC are you?
    There is another thread OCing the same CPU and board, we need to get ahead of them :)
    Ga Ep45 UD3P rev 1.0 Bios assistance
    Of course not! Ah we have some competition! Exciting!! I didn't get all the way through the thread yet, as I had a surprise leave from work this morning due to a power failure in the building. I've bookedmarked it in "Overclocking (folder) -> Competitor" : Did learn a bit though from it so far though, and I like the naming convention described for BIOS profiles early in that thread, and have since adopted it into my own use.

    Anyways, I up'd it to 418 x 8.5 x 1066 and changed tRD channels from 7 to 8, to see what would happen, and ran IBT. It failed:

    EDIT: Made images able to link to full view

    <a href="http://img856.imageshack.us/img856/2073/ibt.png"><img src="http://img856.imageshack.us/img856/2073/ibt.png"></a>


    I then switched SMM to 2.40B, and kept tRD at 8. IBT test successful:
    <a href="http://img710.imageshack.us/img710/4807/ibtq.png"><img src="http://img710.imageshack.us/img710/4807/ibtq.png"></a>


    EDIT: Just ran Memtest, also, to get another benchmark:

    <a href="http://img801.imageshack.us/img801/4135/maxxmem2.jpg"><img src="http://img801.imageshack.us/img801/4135/maxxmem2.jpg"></a>



    So, just to refresh what my BIOS settings are now looking like, I've pasted them below, with commenting in blue.





    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster -------------- : [Auto]
    CPU Clock Ratio ---------------------- : [8X]
    Fine CPU Clock Ratio ----------------- : [0.5]
    CPU Frequency ---------------------: 3.55 Ghz (418x8.5)

    CPU Host Clock Control --------------- : [Enabled]
    CPU Host Frequency (Mhz) --------------: [418]
    PCI Express Frequency (Mhz) ---------- : [100]
    C.I.A.2 ------------------------------ : [Disabled]

    Advanced Clock Control ------- [Press Enter]
    CPU Clock Drive ---------------------- : [800mV]
    PCI Express Clock Drive -------------- : [900mV]
    CPU Clock Skew (ps) ------------------ : [0]
    MCH Clock Skew (ps) ------------------ : [0]

    DRAM Performance Control
    Performance Enhance ------------------- : [Standard]
    Extreme Memory Profile --- (X.M.P.) --- : [Disabled]
    (G)MCH Frequency Latch ---------------- : [Auto]
    System Memory Multiplier -------------- : [2.40B]
    Memory Frequency (Mhz) ---------------- : [1003]
    DRAM Timing Selectable ---------------- : [Manual]

    Standard Timing Control
    CAS Latency Time -------- 5 ---------- : [5]
    tRCD ------------------- 7 ---------- : [5]
    tRP --------------------- 7 ---------- : [5]
    tRAS ------------------- 20 ---------- : [15]

    Advanced Timing Control
    tRRD ------------------- 4 ---------- : [Auto] I could be wrong, but didn't we previously set this to a manual value? I wonder if this was one thing that reverted during an error loop before I started using profiles
    tWTR ------------------- 4 ---------- : [Auto]
    tWR --------------------- 8 ---------- : [Auto]
    tRFC ------------------- 68 ---------- : [Auto]
    tRTP ------------------- 4 ---------- : [Auto]
    Command Rate (CMD) --------0------------ : [Auto]

    Driving Strength Profiles
    Driving Strength --------- : Press Enter

    Channel A
    Static tRead Value --------------------- : [8]
    tRD Phase0 Adjustment ------------------ : [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]
    Dimm2 Clock Skew Control --------------- : [Auto]

    Channel B
    Static tRead Value --------------------- : [8]
    tRD Phase0 Adjustment ------------------ : [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]
    Dimm2 Clock Skew Control --------------- : [Auto]

    Motherboard Voltage Control
    CPU
    Voltage Types------------ Normal -------- Current -----
    Load-Line Calibration ----------------- : [Enabled]
    CPU Vcore --------------- 1.27500V ---- : 1.27500V
    CPU Termination --------- 1.200V ----- : 1.200V
    CPU PLL ----------------- 1.500V ----- : 1.500V
    CPU Reference ----------- 0.760V ----- : [Auto]

    MCH/ICH
    MCH Core ---------------- 1.100V ------- : 1.200V
    MCH Reference ----------- 0.760V ------- : [Auto]
    MCH/DRAM Ref ------------ 0.900V ------- : [Auto]
    ICH I/O ----------------- 1.500V ------- : 1.500V
    ICH Core ---------------- 1.100V ------- : 1.100V
    DRAM
    DRAM Voltage ------------ 1.800V ------- : 2.000V
    DRAM Termination -------- 0.900V ------- : [Auto]
    Channel A Reference ----- 0.900V ------- : [Auto]
    Channel B Reference ----- 0.900V ------- : [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 -------------- : [Disabled]

    Integrated Peripherals
    USB Storage Function ------------- : [Enabled] <- I have to have this enabled because I have a USB keyboard and, when windows fails to boot, I have to be able to tell it to skip loading the Recovery program.
    Last edited by jake8078; 09-21-2011 at 11:52 PM.

  5. #55
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    Default Re: ED45-UD3p with 8400 Dual Core overclock help! :)

    Update: Changed to 424 x 8.5. IBT Success:

    <img src=http://img600.imageshack.us/img600/9015/ibtb.png>

  6. #56
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    Default Re: ED45-UD3p with 8400 Dual Core overclock help! :)

    Update: Stepped it up to 430 x 8.5 x 1032. IBT Sucessful :
    <img src = http://img545.imageshack.us/img545/7193/ibtl.png>

  7. #57
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    Default Re: ED45-UD3p with 8400 Dual Core overclock help! :)

    Jake8078-

    We have almost the same setup-

    This is solid for 4.0GHz on my rig-

    I have an MIT for 4.5GHz somewhere, I'll post if I can find it-

    Some BIOS tips there-> UD3P

    CPU = E8400Motherboard = UD3P
    BIOS Version = FE
    Ram = Corsair Dominator 8500 C5D 1066

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster .............: Auto
    CPU Clock Ratio .....................: 9x
    Fine CPU Clock Ratio.................: +0.0
    CPU Frequency .......................: 4.00GHz (445x9)

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control...............: Enabled
    CPU Host Frequency (Mhz) ............: 445
    PCI Express Frequency (Mhz) .........: 100
    CIA2.................................: Disabled

    Advanced Clock Control
    CPU Clock Drive......................: 800mV
    PCIExpress Clock Drive...............: 900mV
    CPU Clock Skew.......................: 0ps
    MCH Clock Skew.......................: 0ps


    DRAM Performance Control
    Performance Enhance..................: Standard
    Extreme Memory Profile (X.M.P.)......: Auto
    (G)MCH Frequency Latch...............: Auto
    System Memory Multiplier ............: 2.40B
    Memory Frequency (Mhz) ..............: 1068
    DRAM Timing Selectable ..............: Manual

    Standard Timing Control
    CAS Latency Time.....................: 5
    tRCD ................................: 5
    tRP..................................: 5
    tRAS.................................: 15

    Advanced Timing Control
    tRRD.................................: 4 (Auto)
    tWTR.................................: 4 (Auto)
    tWR..................................: 8 (Auto)
    tRFC.................................: 68 (Auto)
    tRTP.................................: 4 (Auto)
    Command Rate (CMD) ..................: 0 (Auto)

    Channel A
    Static tRead Value...................: 8 (Auto)
    Channel A Timing/Driving Settings....: (Auto)


    Channel B
    Static tRead Value...................: 8 (Auto)
    Channel B Timing/Driving Settings....: (Auto)

    Motherboard Voltage Control
    CPU
    Load Line Calibration (LLC) .........: Enabled
    CPU Vcore............................: 1.325
    CPU Termination.....1.200V*..........: 1.30
    CPU PLL.............1.500V*..........: 1.57
    CPU Referen.........0.755V*..........: Auto

    MCH/ICH
    MCH Core............1.100V...........: 1.26
    MCH Reference.......0.800V...........: Auto
    MCH/DRAM Ref........0.900V...........: Auto
    ICH I/O.............1.500V...........: Auto
    ICH Core............1.100V...........: 1.2

    DRAM
    DRAM Voltage .........1.800V.........: 2.10
    DRAM Termination .....0.900V.........: Auto
    Channel A Reference ..0.900V.........: Auto
    Channel B Reference ..0.900V.........: Auto
    Last edited by aL2000; 09-22-2011 at 12:42 AM.

  8. #58
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    Default Re: ED45-UD3p with 8400 Dual Core overclock help! :)

    Quote Originally Posted by aL2000 View Post
    We have almost the same setup-

    This is solid for 4.0GHz on my rig-

    I have an MIT for 4.5GHz somewhere, I'll post if I can find it-
    This is excellent! The main difference between our configurations that I'm seeing is that your Clock Ratio is set to 9 and mine is 8.5 right now. I'm slowly working my way up by 50 Mhz at a time. Can't wait to see what the performance will top out at.

  9. #59
    Chike is offline Senior Member
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    Default Re: ED45-UD3p with 8400 Dual Core overclock help! :)

    Before you had 25GFlops IBT(twice), where did 0.7 GFlops disapear, maybe you had more apps running or didn't wait long enough for the system to idle?
    Rven so, if we take the 418x 8.5, 2.40B, you had to have ~25GFlops at 430. If we go by the 25GFlops at 418x8.5, 2.66D they should be ~25.7. BTW note that the memory was at DDR-1112(556 clock) not DDR-1066, very impressing.
    Run minimal needed applications, like Core Temp.
    Try to ad 2-3 clicks vcore if still under expected GFLops.
    I think you can go with 100MHz increments for the CPU, untill and when you get errors that cannot be solved with vcore alone.

  10. #60
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    Default Re: ED45-UD3p with 8400 Dual Core overclock help! :)

    Update: 436 x 8.5 x 1046 successful:
    <img src = http://img18.imageshack.us/img18/9836/ibtz.png>


    The last response here got me wondering if I should perhaps bump my multiplier - what's the difference between using 8.5 and 9? I'm guessing there's some important technical information in this.

    I realize that I can reach my maximum CPU Frequency by either having (comparatively speaking):

    A.) a high CPU Clock Ratio ratio and a low CPU Host Frequency, or
    B.) a low CPU Clock Ratio and a high Host Frequency.

    I can see automatically that going with (A) directly affects my maximum potential with my Memory Frequency, as the Clock Ratio does not multiply it.

    What other factors come into play here? Thanks!

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