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Thread: Overclocking the EP45-EXTREME




  1. #1

    Question Overclocking the EP45-EXTREME

    I've been experimenting with my EP45-EXTREME and attempting to overclock it. To be honest, I don't know what most of the setting even are.

    I've seen posts on the Internet where people have gotten as high as 5.0GHz.

    Currently, the best I've been able to do is 3.75GHz with my Intel Quad Core Q9550 processor.

    I'm attaching my current settings. With 2 sticks of RAM, it worked ok but when I added two more identical sticks, Everest's system stability checker started reporting errors.

    I'm open to any suggestions, recommendations or just flat out tell me where I've screwed something up.

    Thanks!

    -Tim


    Code:
     
    Motherboard...............................: Gigabyte EP45-EXTREME
    Processor.................................: Intel Core 2 Quad Q9550 2.83GHz
    RAM.......................................: OCZ Reaper DDR2 OCZ2RPR10664GK
     
     
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ..................: Turbo
    CPU Clock Ratio ..........................: 8x
    Fine CPU Clock Ratio......................: +0.5
    CPU Frequency ............................: 3.75Ghz (442*8.5)
     
     
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control....................: [Enabled]
    CPU Host Frequency (Mhz) .................: 442MHz
    PCI Express Frequency (Mhz) ..............: 100MHz
    C.I.A.2 ..................................: [Disabled]
     
     
    Advanced Clock Control
    CPU Clock Drive...........................: 800
    PCI Express Clock Drive...................: 900
    CPU Clock Skew (ps).......................: 0ps
    MCH Clock Skew (ps).......................: 50ps
     
     
    DRAM Performance Control
    Performance Enhance......................: [STANDARD]
    Extreme Memory Profile (X.M.P.)..........: Disabled
    (G)MCH Frequency Latch...................: 400MHz
    System Memory Multiplier ................: 2.66D
    Memory Frequency (Mhz) ..................: 1179Mhz
    DRAM Timing Selectable ..................: [Manual]
     
    Standard Timing Control
    CAS Latency Time.........................: 5
    tRCD ....................................: 5
    tRP......................................: 5
    tRAS.....................................: 15
     
    Advanced Timing Control
    tRRD.....................................: 4
    tWTR.....................................: 5
    tWR......................................: 5
    tRFC.....................................: 52
    tRTP.....................................: 5
    Command Rate (CMD) ......................: 2
     
    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
    Voltage Type.............................: Manual
    CPU
    CPU Vcore................................: 1.38750V
    CPU Termination........... 1.200V*.......: 1.300V
    CPU PLL....................1.500V*.......: Auto
    CPU Referen................0.755V*.......: Auto
    CPU Reference2.............0.800V*.......: Auto
     
    MCH/ICH
    MCH Core...................1.100V........: 1.200V
    MCH Reference..............0.800V........: Auto
    MCH/DRAM Ref...............0.900V........: Auto
    ICH I/O....................1.550V........: Auto
    ICH Core...................1.100V........: Auto
     
    DRAM
    DRAM Voltage...............1.800V........: 2.100V
    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]
    CPU Thermal Monitor 2(TM2)...............: [Disabled]
    CPU EIST Function........................: [Disabled]
    Virtualization Technology................: [Enabled]

  2. #2

    Default Re: Overclocking the EP45-EXTREME

    tRFC.....................................: 58-62
    Static tRead Value.......................: 8 try this higher, 9-10.

    MCH Core...................1.100V........: 1.200V
    this is one of ur problem! it needs 1.3 at least for 4 sticks.
    your memory is working on high frenq, why wont u lower the MP to 2.0D or 2.40D
    as well:
    MCH Clock Skew (ps).......................: 50ps try this 150\100
    but wait for LSDMEASAP he is a genius he will get u going in no time.

  3. #3

    Default Re: Overclocking the EP45-EXTREME

    I read through the sticky on memory timings and what all they mean. I already changed the MCH Core to 1.300V I am also trying to bump that up a smidge.

    I also already bumped up the Static tRead Value to 10.

    My current changed settings are:
    Code:
     
    Advanced Clock Control
    CPU Clock Drive...........................: 800
    PCI Express Clock Drive...................: 900
    CPU Clock Skew (ps).......................: 0ps
    MCH Clock Skew (ps).......................: 150ps
    
    DRAM Performance Control
    Performance Enhance......................: [STANDARD]
    Extreme Memory Profile (X.M.P.)..........: Disabled
    (G)MCH Frequency Latch...................: 400MHz
    System Memory Multiplier ................: 2.00D
    Memory Frequency (Mhz) ..................: 884Mhz
    DRAM Timing Selectable ..................: [Manual]
    
    Advanced Timing Control
    tRRD.....................................: 4
    tWTR.....................................: 4
    tWR......................................: 6
    tRFC.....................................: 71
    tRTP.....................................: 4
    Command Rate (CMD) ......................: 2
    Channel A
    Static tRead Value.......................: 10
    
    Channel B
    Static tRead Value.......................: 10
    
    MCH/ICH
    MCH Core...................1.100V........: 1.340V
    My only options for the memory MP is 2.00D, 2.66D and 3.33D

    The settings I'm using for the advanced timing control came from the SPD information in memset v3.4

    I'm running Memtest now and so far no errors. However, running the Everest System Stability Test crashed and ultimately BSOD the system. Maybe the problem isn't memory but the processor?

    BTW, my BIOS on this EP45-EXTREME is F7.

  4. #4
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Overclocking the EP45-EXTREME

    Ya, I woudl agree you would have more stability with trd of 9 instead of 8 with the rest of your timings as they are.

    1.2 MCH may be good, but for 4 sticks at 1066 I would try using 1.24-1.28 or so until you see if this is the issue or not, then if not back off it again.

    The rest of your timings look acceptable at those speeds, I would think maybe trd (Static Tread Value) was maybe what is causing your error.

    But best to be sure, with what you have now, if it is the ram or the CPU. To find out, simply run Memtest86+ for a while. If you get errors you know it is the ram/NB and not your other CPU related settings >>
    Memtest86+ - Advanced Memory Diagnostic Tool

  5. #5

    Default Re: Overclocking the EP45-EXTREME

    So far, no errors yet on MemTest.

    One thing I don't understand is what am I doing when I change MCH Frequency latch and the system memory multiplier?

    I changed the multiplier from 2.66D to 2.00D and now the memory frequency is showing at only 884MHz. Does that mean my memory is running slower now?

    I guess I'm not really sure what I am trying to accomplish or what is being changed with these settings.

  6. #6

    Default Re: Overclocking the EP45-EXTREME

    If it turns out that the CPU is what is making me unstable, should I back down on the CPU Host Frequency or do I need to beef something else up to support the current frequency (like the CPU voltages)?

  7. #7
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Overclocking the EP45-EXTREME

    Yes, as you increase your CPU Freq you will need more Vcore. And yes your ram is running slower when you choose a smaller multi. What you can do is use 333 or 400 MCH latch and then depending on your FSB choose a ram multi that is closer to your ram's rated speed

  8. #8

    Default Re: Overclocking the EP45-EXTREME

    I've been working on this for a while now. I ran MemTest overnight (7 full passes) and there were no errors so I am pretty sure that any issues I have are CPU-related.

    This profile is stable and runs ok via OCCT:
    Code:
     
    Motherboard...............................: Gigabyte EP45-EXTREME
    Processor.................................: Intel Core 2 Quad Q9550 2.83GHz
    RAM.......................................: OCZ Reaper DDR2 OCZ2RPR10664GK
    
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ..................: Turbo
    CPU Clock Ratio ..........................: 8x
    Fine CPU Clock Ratio......................: +0.5
    CPU Frequency ............................: 3.75Ghz (442*8.5)
    
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control....................: [Enabled]
    CPU Host Frequency (Mhz) .................: 442MHz
    PCI Express Frequency (Mhz) ..............: 100MHz
    C.I.A.2 ..................................: [Disabled]
    
    Advanced Clock Control
    CPU Clock Drive...........................: 800
    PCI Express Clock Drive...................: 900
    CPU Clock Skew (ps).......................: 0ps
    MCH Clock Skew (ps).......................: 150ps
    
    DRAM Performance Control
    Performance Enhance......................: [STANDARD]
    Extreme Memory Profile (X.M.P.)..........: Disabled
    (G)MCH Frequency Latch...................: 333MHz
    System Memory Multiplier ................: 2.40B
    Memory Frequency (Mhz) ..................: 1061Mhz
    DRAM Timing Selectable ..................: [Manual]
    Standard Timing Control
    CAS Latency Time.........................: 5
    tRCD ....................................: 5
    tRP......................................: 5
    tRAS.....................................: 15
    Advanced Timing Control
    tRRD.....................................: 4
    tWTR.....................................: 4
    tWR......................................: 6
    tRFC.....................................: 60
    tRTP.....................................: 4
    Command Rate (CMD) ......................: 2
    Channel A
    Static tRead Value.......................: 9
    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.......................: 9
    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
    Voltage Type.............................: Manual
    CPU
    CPU Vcore................................: 1.38750V
    CPU Termination........... 1.200V*.......: 1.300V
    CPU PLL....................1.500V*.......: Auto
    CPU Referen................0.755V*.......: Auto
    CPU Reference2.............0.800V*.......: Auto
    MCH/ICH
    MCH Core...................1.100V........: 1.300V
    MCH Reference..............0.800V........: Auto
    MCH/DRAM Ref...............0.900V........: Auto
    ICH I/O....................1.550V........: Auto
    ICH Core...................1.100V........: Auto
    DRAM
    DRAM Voltage...............1.800V........: 2.100V
    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]
    CPU Thermal Monitor 2(TM2)...............: [Disabled]
    CPU EIST Function........................: [Disabled]
    Virtualization Technology................: [Enabled]
    I've had to make significant cooling changes for the CPU. It was getting hotter than what I was seeing on the Everest System Stability Test.

    This morning I broke down and hooked up the liquid cooling.

    Now I am trying to see if I can go faster than 3.75GHz. Unfortunately, when I try, Vista locks up under load (running OCCT).

    Here is the profile I am trying now that runs the CPU at 3.95GHz. Does anyone have any suggestions on how to stabilize this so Vista doesn't hang when running a high load (it runs fine under normal conditions)?

    Code:
     
    Motherboard...............................: Gigabyte EP45-EXTREME
    Processor.................................: Intel Core 2 Quad Q9550 2.83GHz
    RAM.......................................: OCZ Reaper DDR2 OCZ2RPR10664GK
    
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ..................: Turbo
    CPU Clock Ratio ..........................: 8x
    Fine CPU Clock Ratio......................: +0.5
    CPU Frequency ............................: 3.95Ghz (465*8.5)
    
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control....................: [Enabled]
    CPU Host Frequency (Mhz) .................: 465MHz
    PCI Express Frequency (Mhz) ..............: 100MHz
    C.I.A.2 ..................................: [Disabled]
    
    Advanced Clock Control
    CPU Clock Drive...........................: 800
    PCI Express Clock Drive...................: 900
    CPU Clock Skew (ps).......................: 0ps
    MCH Clock Skew (ps).......................: 150ps
    
    DRAM Performance Control
    Performance Enhance......................: [STANDARD]
    Extreme Memory Profile (X.M.P.)..........: Disabled
    (G)MCH Frequency Latch...................: 333MHz
    System Memory Multiplier ................: 2.40B
    Memory Frequency (Mhz) ..................: 1116Mhz
    DRAM Timing Selectable ..................: [Manual]
    Standard Timing Control
    CAS Latency Time.........................: 5
    tRCD ....................................: 5
    tRP......................................: 5
    tRAS.....................................: 15
    Advanced Timing Control
    tRRD.....................................: 4
    tWTR.....................................: 4
    tWR......................................: 6
    tRFC.....................................: 60
    tRTP.....................................: 4
    Command Rate (CMD) ......................: 2
    Channel A
    Static tRead Value.......................: 9
    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.......................: 9
    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
    Voltage Type.............................: Manual
    CPU
    CPU Vcore................................: 1.47500V
    CPU Termination........... 1.200V*.......: 1.380V
    CPU PLL....................1.500V*.......: Auto
    CPU Referen................0.755V*.......: Auto
    CPU Reference2.............0.800V*.......: Auto
    MCH/ICH
    MCH Core...................1.100V........: 1.300V
    MCH Reference..............0.800V........: Auto
    MCH/DRAM Ref...............0.900V........: Auto
    ICH I/O....................1.550V........: Auto
    ICH Core...................1.100V........: Auto
    DRAM
    DRAM Voltage...............1.800V........: 2.100V
    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]
    CPU Thermal Monitor 2(TM2)...............: [Disabled]
    CPU EIST Function........................: [Disabled]
    Virtualization Technology................: [Enabled]
    Thanks for all your help!

    -Tim

  9. #9
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Overclocking the EP45-EXTREME

    What Ram, ram configuration are you using now?

    Maybe this will help since I think you said you are using 4 sticks of ram >>>

    CPU Clock Skew (ps).......................: maybe 50-150
    MCH Clock Skew (ps).......................: 150ps << Maybe 200.250

    DRAM Performance Control
    Performance Enhance......................: [STANDARD]
    Extreme Memory Profile (X.M.P.)..........: Disabled
    (G)MCH Frequency Latch...................: 333MHz << You may want to go up to the 400 strap

    System Memory Multiplier ................: 2.40B
    Memory Frequency (Mhz) ..................: 1116Mhz
    DRAM Timing Selectable ..................: [Manual]


    Channel A & B
    Static tRead Value.......................: 10 << This will loosen up things (Less stress) for you on the NB for now

    CPU
    CPU Vcore................................: 1.47500V
    CPU Termination........... 1.200V*.......: 1.380V << Maybe less will stabilize things, or less plus adjust Reference voltages below manually to get under the defaults, or over. Those help alot with stability, and it is a trail and error type of thing. Here is a few write up's on it. First one is for SLI board, but has some great info >>>
    How to: What is GTLREF and what does it have to do with me?

    Also see >>>
    Understanding GTL Reference Voltage | ocXtreme
    Edge Of Stability ~ Understanding GTL Reference Voltage
    Edge Of Stability ~ CPU And Northbridge GTL Default Settings (DFI)


    CPU PLL....................1.500V*.......: 1.56-1.6
    CPU Referen................0.755V*.......: Auto
    CPU Reference2.............0.800V*.......: Auto

    MCH/ICH
    MCH Core...................1.100V........: 1.300V-1.35
    MCH Reference..............0.800V........: Auto
    MCH/DRAM Ref...............0.900V........: Auto
    ICH I/O....................1.550V........: 1.55-1.65
    ICH Core...................1.100V........: 1.2-1.35
    Last edited by Lsdmeasap; 10-18-2008 at 01:02 PM.

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