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Thread: Overclocking E8500 on a ga-ep45-ud3p need help




  1. #1
    Join Date
    Mar 2009
    Posts
    19

    Default GA-EP45-ud3p need help with an overclock

    Hi I have an E8500 (E0 Stepping) on a GA-EP45-UD3P (BIOS F8) with Crucial Ballistix 2x2G...

    I'm getting stuck on overclocking the cpu and am in need of some help.. I have the memory stable @ 500

    with these settings

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    Code:
    MB Intelligent Tweaker(M.I.T.)
      Robust Graphics Booster ...............:       Auto
      CPU Clock Ratio ..........................:        8
    
      Fine CPU Clock Ratio.....................:.     0
    
      CPU Frequency ...........................:       4.00Ghz
       
       
      Clock Chip Control 
      Standard Clock Control
      CPU Host Clock Control..................: [Enabled] 
      CPU Host Frequency (Mhz) ............: 500 Mhz
      PCI Express Frequency (Mhz) .........:100
       
      C.I.A.2 .................................:[Disabled]
       
       
      Advanced Clock Control [Press Enter]
      CPU Clock Drive...........................:  [800mV]   (default)
      PCI Express Clock Drive.................: [900mV] (default)
      CPU Clock Skew (ps)....................:   [0ps]         (default)
      MCH Clock Skew (ps)...................:   [0ps] (default)
       
       
      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) ..............: 500   1000
      DRAM Timing Selectable ................: [Manual]
       
      Standard Timing Control
      CAS Latency Time........................5
      tRCD .........................................5
      tRP'...........................................5
      tRAS..........................................15
       
      Advanced Timing Control
      tRRD...........................................3 
      tWTR..........................................3
      tWR............................................5
      tRFC...........................................50
      tRTP...........................................3 
      Command Rate (CMD) ....................:2 
       
      Driving Strength Profiles
      Driving Strength ............................1060Mhz
       
      Channel A
      Static tRead Value.........................:9 [Auto]
       tRD Phase0 Adjustment...................:<<< Leave for all below as well
      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
      DDR Write Training..........................:Auto
       
      Channel B
      Static tRead Value.........................:9 [Auto]
       tRD Phase0 Adjustment...................:<<< Leave for all below as well
      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
      DDR Write Training..........................:Auto
       
      Motherboard Voltage Control
      CPU
      Load-Line Calibration.........................: [Disabled]  (default)
      CPU Vcore….……….........................:1.25000V 
      CPU Termination…...........................:1.200V
      CPU PLL…………………..................:1.500V
      CPU Referen.………….....................:0.760V
       
       
      MCH/ICH
      MCH Core…………….....1.100V...........: [1.260V]
      MCH Reference….…….0.800V...........; [0.720V]
      MCH/DRAM Ref.…......0.900V...........: [Normal]  <<< Leave
      ICH I/O……………….....1.5500V...........: [1.5700V]
      ICH Core…………...……1.100V............: [1.2000V] 
       
      DRAM
      DRAM Voltage ……....1.800V............: 2.000V
      DRAM Termination .…0.900V............: <<< Leave
      Channel A Reference 0.900V............: <<< Leave
      Channel B Reference 0.900V............: <<< Leave
       
      Advanced Settings
      Limit CPUID Max. to 3.....................: [Disabled]
      No-Execute Memory Protect............: [Enabled]
      CPU Enhanced Halt (C1E)................: [Enabled]
      C2/C2E State Support....................: [Enabled]
      x C4/C4E State Support..................: [Enabled]
      CPU Thermal Monitor 2(TM2) ...........: [Enabled]
      CPU EIST Function.........................: [Disabled]
      Virtualization Technology................: [Enabled] Enabled if you use Vmware/Virtual PC
       
      Integrated Peripherals
      Legacy USB Storage Detect ..............[Enabled] *Note* Must be enabled to flash from USB

    So I took the stock 3.125Ghz CPU with stock cpu voltages to 4.0Ghz without issue.... Yes I am ecstatic!!
    But I got the speed bug... and I need to know what this baby can do on good air-cooling..

    Here is the problem.. I keep incrementing my Vcore by one step.. and I can get windows to boot.. but then it crashes or prime95 gives a rounding error. Even after tons of reading I still don't get how to bump Vcore, Vtt, CPUpll, and CPUref. I went all the way from Vcore =1.250 to 1.320 in the BIOS.. and it's not happy.

    My Core temps are @ 55 degrees C... which seems odd.. because they were higher @ stock speed. All while under prime95 testing
    Last edited by dvohwinkel; 04-05-2009 at 08:48 AM.

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