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Thread: Pass in Intelburn but failing in Prime95




  1. #1
    Join Date
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    Default Pass in Intelburn but failing in Prime95

    trying to push from 3.9 to 4.1 I pass in Intelburn but failing in Prime95 real fast rounding error. Please let me know if there is any information you need to help with suggestions.

    Thanks

    Code:
    MB Intelligent Tweaker(M.I.T.) 
    Robust Graphics Booster ...............:Fast 
    CPU Clock Ratio ...........................:8 X
    Fine CPU Clock Ratio.....................:+0.5
    CPU Frequency .............................:4.1GHz (483x8.5)
     
    Advanced Clock Control Press Enter 
    CPU Host Clock Control..................:Enabled
    CPU Host Frequency (Mhz) ............:483 
    PCI <NOBR style="COLOR: #0000ff; FONT-SIZE: 100%; FONT-WEIGHT: normal" id=itxt_nobr_39_0>Express</NOBR> Frequency (Mhz) ........:100 
    C.I.A.2 .................................:Disabled 
     
    CPU Clock Drive..........................:800mV 
    PCI Express Clock Drive...............:900mV 
    CPU Clock Skew (ps)...................:0ps 
    MCH Clock Skew (ps)...................:0ps 
     
    DRAM Performance Control 
    Performance Enhance...................:Standard
    Extreme Memory Profile (X.M.P.).....:Disabled 
    (G)MCH Frequency Latch...............:Auto 
    System Memory Multiplier ..............2.00D 
    Memory Frequency (Mhz) ....1066....:966
    DRAM Timing Selectable ................:Manual 
     
    Standard Timing Control 
    CAS Latency Time.............5........5
    tRCD ...............................7........5
    tRP'..................................7........5
    tRAS...............................24.......15
     
    Advanced Timing Control 
    tRRD.......................4.................8
    tWTR......................4..................4
    tWR.........................8.................12
    tRFC........................68...............68
    tRTP.........................4................6
    Command Rate (CMD) .......0........2
     
    Driving Strength Profiles 
    Driving Strength ........................... Auto
     
    Channel A 
    Static tRead Value...............8.....: 12 
    tRD Phase0 Adjustment.......0.......: Auto
    tRD Phase1 Adjustment.......0.......: Auto
    tRD Phase2 Adjustment ......0.......: Auto
    tRD Phase3 Adjustment.......0.......: Auto
    Trd2rd(Different Rank)...........8....: Auto
    Twr2wr(Different Rank)..........8....: Auto
    Twr2rd(Different Rank)...........7....: Auto
    Trd2wr(Same/Diff Rank).........9.....: Auto
    Dimm1 Clock Skew Control............: Auto
    Dimm2 Clock Skew Control............: Auto
     
    Channel B 
    Static tRead Value...............8........: 12 
    tRD Phase0 Adjustment........1.......: Auto 
    tRD Phase1 Adjustment....... 0.......: Auto
    tRD Phase2 Adjustment .......0.......: Auto
    tRD Phase3 Adjustment........0.......: Auto
    Trd2rd(Different Rank).......... .8.....: Auto
    Twr2wr(Different Rank).......... 8....: Auto
    Twr2rd(Different Rank)........... 7....: Auto
    Trd2wr(Same/Diff Rank)..........9.....: Auto
    Dimm1 Clock Skew Control.............: Auto
    Dimm2 Clock Skew Control.............: Auto
     
    Motherboard Voltage Control 
    Voltage Type.………... Manual 
    CPU
    Load Line Calibration......................:Disabled
    CPU Vcore….…….1.25000V...........:1.3625
    CPU Termination…..... 1.200V*........:1.360V
    CPU PLL……………….1.500V*.......: 1.570V
    CPU Referennce.……...0.760V*.......: Auto
     
    MCH/ICH 
    MCH Core……………...1.100V.........:1.400V
    MCH Reference….…….0.760V.........;Auto 
    MCH/DRAM Ref.…......0.900V..........:Auto 
    ICH I/O…………….....1.500V............:1.570V
    ICH Core…………...…1.100V............:1.200V
     
    DRAM 
    DRAM Voltage ……....1.800V..........:2.120V
    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
    Last edited by Greyform; 10-01-2009 at 01:36 PM.
    MB Gigabyte EP45-UD3P
    CPU Q9550
    RAM 8 Gigs G-Skil F2-8500CL5 (4 2gig sticks)
    Video Card ATI 4890
    HSF Zalman CNPS9500 AT
    Case Antec Nine Hundred two

  2. #2
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: Pass in Intelburn but failing in Prime95

    This was posted in your other thread:
    note: When you include Memset in your screen-shots (as in your linked to thread), use the SPD and ">>" tabs to display additional information
    **edit**I suggest using the maximum available memory when using IBT.
    Last edited by profJim; 10-01-2009 at 01:50 PM. Reason: more info
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  3. #3
    Join Date
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    Default Re: Pass in Intelburn but failing in Prime95

    Usually I don't get involved in the Overclocking posts especially when people are trying to push their systems way too much, which it appears you are doing - but each to their own

    It seems that the Quad cores such as the Q9550 won't overclock with the same stability as their Dual Core counterparts (in percentage terms) and hence you'll see most memory manufacturers show their top end specification ram (ie overclocked system) in dual core setups, so expect limitations

    If you are a gamer you may find issues with other tests too, such as Gaming/Benchmarking when you are stressing the NorthBridge in more than one way.
    I've found that too that using a rolling Demo such as Egosoft's X3 Terran Conflict can indicate overclocking issues that none of the more "specific" test programs did.
    http://www.egosoft.com/download/x3tc/demos_en.php

    Also as Windows Vista uses ASLR, you may find that after each bootup that your stability results are different as some "failing" regions of your ram are not being used.
    So you really need to either tweak a few more settings and "fine tune" or back the overclock off if you want some stability.
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  4. #4
    Chike is offline Senior Member
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    Default Re: Pass in Intelburn but failing in Prime95

    It is mentioned in so many other threads that vtt should be less than vcore.
    I see Conners' settings for 3.91GHz and he didn't even touch vtt or PLL.
    Now I know no two systems are the same even if they are bulit of the same parts, but still you may want to have a look and try ways other than just pushing up voltages.

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