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Thread: Overclocking E8500 on EP45-DS3




  1. #41
    Chike is offline Senior Member
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    Default Re: Overclocking E8500 on EP45-DS3

    All looks good to me. Just a Prime85 blend for 10-12 hours and you can call it stable.
    I wouldn't go any higher with current CPU cooler.

  2. #42
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: Overclocking E8500 on EP45-DS3

    A google search using:
    hd 5670 crossfire OR overclock
    turned up some interesting results.
    Keep in mind that some of the links are using 1GB not 512MB cards.
    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
    .


  3. #43
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    Default Re: Overclocking E8500 on EP45-DS3

    Prime95 stopped running after 2h 38min. due to an error, should i raise vcore a bit more?
    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

  4. #44
    Chike is offline Senior Member
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    Default Re: Overclocking E8500 on EP45-DS3

    Which FFT size was it?

  5. #45
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    Default Re: Overclocking E8500 on EP45-DS3

    prime95 blend test:
    [Sun Jan 30 04:28:44 2011]
    Self-test 720K passed!
    Self-test 720K passed!
    [Sun Jan 30 04:43:54 2011]
    Self-test 8K passed!
    Self-test 8K passed!
    FATAL ERROR: Rounding was 0.5, expected less than 0.4
    Hardware failure detected, consult stress.txt file.
    [Sun Jan 30 04:59:21 2011]
    Self-test 800K passed!
    [Sun Jan 30 05:15:11 2011]
    Self-test 12K passed!
    [Sun Jan 30 05:30:22 2011]
    Self-test 960K passed!
    [Sun Jan 30 05:45:50 2011]
    Self-test 20K passed!
    [Sun Jan 30 06:00:58 2011]
    Self-test 1120K passed!
    [Sun Jan 30 06:16:59 2011]
    Self-test 32K passed!
    [Sun Jan 30 06:32:02 2011]
    Self-test 1200K passed!
    [Sun Jan 30 06:47:44 2011]
    Self-test 48K passed!
    FATAL ERROR: Rounding was 0.498046875, expected less than 0.4
    Hardware failure detected, consult stress.txt file.
    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

  6. #46
    Chike is offline Senior Member
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    Default Re: Overclocking E8500 on EP45-DS3

    I make it the forst failed on 800k then the other I can't tell.
    Lts try to wwork the references, begin with MCH Reference. The reverences are percent of VTT, not to get confused always change them with VTT set to 1.2v. Above or below default may work so need to experiment.
    The procedure as follows:
    Set VTT to 1.2v.
    Set reference voltage to desired value.
    Restore VTT to it's original value (note that the reference will scale with VTT).

    Start with MCH Reference, 1-4 steps below default which is 0.760v, then 1-4 above default if none of those made things better.
    It may be that the system will become more stable but not completely stable. In that case repeat the same with CPU Reference with MCH Reference that is most stable.

  7. #47
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    Default Re: Overclocking E8500 on EP45-DS3

    Hi there! I have tried all the variables and still didnīt come up with a stable system. The best results: Prime95 blend test lasted 33 minutes and then stopped due to an error on test 800K. here are the current settings:

    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...............: [400MHz]
    System Memory Multiplier ..............: (2.00D)
    Memory Frequency (Mhz) ..............: 844
    DRAM Timing Selectable ................: [Manual]

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

    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 [ 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 default / current
    Static tRead Value.........................: 11 [ 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 ......: [1.38750V]
    CPU Termination…..... 1.200V*.......: [ 1.200V ]
    CPU PLL…………………....1.500V*.......: [ 1570V ]
    CPU Referen.…………....0.760V*.......: [ 0.745V ]

    MCH/ICH
    MCH Core…………….....1.100V...........: [ 1280V ]
    MCH Reference….…….0.760V...........; [0.720V ]
    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

  8. #48
    Chike is offline Senior Member
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    Default Re: Overclocking E8500 on EP45-DS3

    With VTT alwayts at 1.2V?
    Try to run small FTT see if that work longer.

  9. #49
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: Overclocking E8500 on EP45-DS3

    Some have stability problems with FSB = 400, try setting FSB = 401 and retest.

    There is nothing magical with FSB = 401, it's just that 400 sometimes causes problems.

    Did you test with MCH Ref 2, 3, or 4 steps lower than the standard .760 setting as Chike suggested?

    Another test option is to switch to the 2.00B memory multiplier and retest if the lower MCH Ref tests all fail.
    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
    .


  10. #50
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    Default Re: Overclocking E8500 on EP45-DS3

    Yes VTT always at 1.200V. I did test with MCH Ref 2, 3, or 4 steps lower than the standard .760 setting as Chike suggested but my current FSB is 422!
    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

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