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Thread: Overclocking E8500 on EP45-DS3




  1. #61
    Chike is offline Senior Member
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    Default Re: Overclocking E8500 on EP45-DS3

    Yes but start close or at where you were before, MCH Core 1.26-1.28v, VTT 1.24-1.28v.

  2. #62
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    Default Re: Overclocking E8500 on EP45-DS3

    I have tried all the variables with MCH Core 1.26-1.28v, VTT 1.24-1.28v. and didn´t find it stable more than half hour, the truth is that I haven´t yet tried variations with references but I wanted to try how it works when I set some values to Auto and amazingly find it stable for over 3 hours with Prime95 blend test. I had to stop it cause I needed the Pc, but I´ll run it again later. My question is where do I go from here? Should I continue trying to find the correct values, or? I have tested it with IBT high stress so I will include the results. My current Bios settings are:

    Overclocking E8500 on EP45-DS3-ibt-png

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: x9
    Fine CPU Clock Ratio.....................:.0.5
    CPU Frequency ...........................: 4.00GHz [422x9]

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............:422 MHz
    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)....................: <<< [ 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) ..............: 844
    DRAM Timing Selectable ................: [Auto]

    Standard Timing Control
    CAS Latency Time........................Auto
    tRCD ......................................... Auto
    tRP'........................................... Auto
    tRAS.......................................... Auto

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

    Driving Strength Profiles
    Driving Strength ............................ Auto

    Channel A default / current
    Static tRead Value.........................:11 [ Auto ]
    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 ps
    Dimm2 Clock Skew Control...............:Auto ps

    Channel B default / current
    Static tRead Value.........................: 11 [ Auto ]
    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 ps
    Dimm2 Clock Skew Control...............:Auto ps

    Motherboard Voltage Control
    CPU
    CPU Vcore….………......1.225V ......: [1.39375V]
    CPU Termination…..... 1.200V*.......: [ Auto ]
    CPU PLL…………………....1.500V*.......: [ Auto ]
    CPU Referen.…………....0.760V*.......: [ 0.Auto ]

    MCH/ICH
    MCH Core…………….....1.100V...........: [ Auto ]
    MCH Reference….…….0.760V...........; [Auto ]
    MCH/DRAM Ref.…......0.900V...........: [ Auto ]
    ICH I/O……………….....1.500V............: [ Auto ]


    DRAM
    DRAM Voltage ……....1.800V............: [2.180V ]
    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
    Legacy USB Storage Detect ..............[Disabled]
    Last edited by gile; 02-02-2011 at 10:51 PM.
    Motherboard:Gigabyte GA-EP45-DS3 rev.1.0, BIOS version F9.
    CPU: Intel Core2duo E8500 3,16Ghz-O.C. to 3.80Ghz
    CPU Cooler: Arctic cooling Freezer 13 Pro
    RAM: OCZ DDR2 PC2-6400 Platinum http://www.ocztechnology.com/product...b_dual_channel
    Graphics: ATI SAPPHIRE RADEON HD 5670 512mb. GDDR5
    Power Supply: Corsair TX 650w

  3. #63
    Chike is offline Senior Member
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    Default Re: Overclocking E8500 on EP45-DS3

    Can you pos ET6 Advanced Voltage tab for those settings? auto always worries me, especially PLL.

  4. #64
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    Default Re: Overclocking E8500 on EP45-DS3

    Here are the voltages of ET6:
    Overclocking E8500 on EP45-DS3-et6-voltages-png
    Motherboard:Gigabyte GA-EP45-DS3 rev.1.0, BIOS version F9.
    CPU: Intel Core2duo E8500 3,16Ghz-O.C. to 3.80Ghz
    CPU Cooler: Arctic cooling Freezer 13 Pro
    RAM: OCZ DDR2 PC2-6400 Platinum http://www.ocztechnology.com/product...b_dual_channel
    Graphics: ATI SAPPHIRE RADEON HD 5670 512mb. GDDR5
    Power Supply: Corsair TX 650w

  5. #65
    Chike is offline Senior Member
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    Default Re: Overclocking E8500 on EP45-DS3

    Set CPU PLL a bit lower 1.59. Could be that more PLL is all you needed.

  6. #66
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    Default Re: Overclocking E8500 on EP45-DS3

    I set CPU PLL tp 1.59. Boot ok, IBT high stress passed. I will run Prime95 and let you know about the results. So can I leave the rest to Auto or? The RAM factory default timings are 5-4-4-15, and now are currently on Bios default, so how should i put them?
    Motherboard:Gigabyte GA-EP45-DS3 rev.1.0, BIOS version F9.
    CPU: Intel Core2duo E8500 3,16Ghz-O.C. to 3.80Ghz
    CPU Cooler: Arctic cooling Freezer 13 Pro
    RAM: OCZ DDR2 PC2-6400 Platinum http://www.ocztechnology.com/product...b_dual_channel
    Graphics: ATI SAPPHIRE RADEON HD 5670 512mb. GDDR5
    Power Supply: Corsair TX 650w

  7. #67
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: Overclocking E8500 on EP45-DS3

    Post a Memset screen-shot using the SPD and ">>" tabs.
    With Performance Enhance = Standard and using AUTO for the Standard Timing Controls, you might find that the primary memory timings are set to 5-7-7-24 which will result in lower memory performance.

    tRD = 11 is probably too loose with FSB = 422MHz. tRD = 9 or 10 will offer better memory performance with your 2.00D System Memory Multiplier. If stable, the 2.00B multiplier will let you use tRD = 8 or 9 for somewhat better memory performance.

    Naturally you will need to repeat your stress/stability tests each time you tweak your memory settings. Timings that are too tight will lead to failed tests.

    With your current AUTO memory settings, setting Performance Enhance = Turbo might be stable where some of the memory timings will be set to somewhat tighter values for better memory performance.

    My preference is to set and test with manually set values for some of the memory settings.
    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
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  8. #68
    Chike is offline Senior Member
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    Default Re: Overclocking E8500 on EP45-DS3

    The RAM factory defaults (a.k.a SPD) are 6-6-6-18 for DDR-800 and at DDR-844 probably 6-7-7-19.
    Try 5-5-5-18 with tRD 10, then try to lower them after you have 4GHz stable profile.

  9. #69
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    Default Re: Overclocking E8500 on EP45-DS3

    With System Memory Multiplier set to 2.00B, Static tRead Value=8 for both channels and timings set to 5-5-5-15 system won´t boot. So I raised Static tRead Value=9 and the system boots but failed Prime95 blend test after 5 minutes on FFT=720k. Then like Chike suggested I set the timings to 5-5-5-18, with tRd=9 but failed Prime95 blend test after 1hour 7minutes on FFT=960K. The same timings with tRd=10 failed Prime95 blend test after 31minutes on FFT=800K. What else can I try? Here are my current settings with which I did the last test, Memset included:

    Overclocking E8500 on EP45-DS3-memset-jpg

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: x9
    Fine CPU Clock Ratio.....................:.0.5
    CPU Frequency ...........................: 4.00GHz [422x9]
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............:422 MHz
    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)....................: <<< [ 0ps]
    MCH Clock Skew (ps)...................: <<< [ 0ps]
    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled [ I don´t have that option ]
    (G)MCH Frequency Latch...............: [333MHz]
    System Memory Multiplier ..............: (2.00B)
    Memory Frequency (Mhz) ..............: 844
    DRAM Timing Selectable ................: [Manual]
    Standard Timing Control
    CAS Latency Time........................ 5
    tRCD ......................................... 5
    tRP'........................................... 5
    tRAS.......................................... 18
    Advanced Timing Control
    tRRD........................................... Auto
    tWTR.......................................... Auto
    tWR............................................ Auto
    tRFC........................................... Auto
    tRTP........................................... Auto
    Command Rate (CMD) ....................: Auto
    Driving Strength Profiles
    Driving Strength ............................ Auto
    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 ps
    Dimm2 Clock Skew Control...............:Auto ps
    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 ps
    Dimm2 Clock Skew Control...............:Auto ps
    Motherboard Voltage Control
    CPU
    CPU Vcore….………......1.225V ......: [1.40000V]
    CPU Termination…..... 1.200V*.......: [ Auto ]
    CPU PLL…………………....1.500V*.......: [ 1590V ]
    CPU Referen.…………....0.760V*.......: [ Auto ]
    MCH/ICH
    MCH Core…………….....1.100V...........: [ Auto ]
    MCH Reference….…….0.760V...........; [Auto ]
    MCH/DRAM Ref.…......0.900V...........: [ Auto ]
    ICH I/O……………….....1.500V............: [ Auto ]
    DRAM
    DRAM Voltage ……....1.800V............: [2.180V ]
    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
    Legacy USB Storage Detect ..............[Disabled]
    Motherboard:Gigabyte GA-EP45-DS3 rev.1.0, BIOS version F9.
    CPU: Intel Core2duo E8500 3,16Ghz-O.C. to 3.80Ghz
    CPU Cooler: Arctic cooling Freezer 13 Pro
    RAM: OCZ DDR2 PC2-6400 Platinum http://www.ocztechnology.com/product...b_dual_channel
    Graphics: ATI SAPPHIRE RADEON HD 5670 512mb. GDDR5
    Power Supply: Corsair TX 650w

  10. #70
    Chike is offline Senior Member
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    Default Re: Overclocking E8500 on EP45-DS3

    Try VTT 1.24-1.26v, MCH Core 1.24v.
    Just for a short test, try PLL 1.61-1.65v.
    I suggest run the FFT800 only first because it is very likely to fail, if after a while it doesn't fail run the blend.

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