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Thread: Overclocking on EP43-UD3L




  1. #1
    Join Date
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    Default Overclocking on EP43-UD3L

    Firstly, my specs
    EP43-UD3L
    Pentium Dualcore E6300 @ 3.15ghz(OC'd from 2.8 stock)
    4GB Corsair DDR2-800mhz
    Radeon HD 5850

    This is my first build and overclock so I'm learning a lot as I go. Mostly I just want advice to make sure I'm not setting something wrong that can cause long term damage. I've read the guide stickied and it was a lot of help even though my mobo varies a bit from it. I'd like to get to 3.5ghz on a aftermarket cooler, that I already have installed, without doing any long term damage.

    FSB is currently at 300mhz*10.5 and 1.3V

    I'd like advice on how to set the voltages for the CPU and RAM in MIT because I read that the auto can pull too much and cause damage to the RAM and CPU. If there's a way to pull the settings out of the BIOS to show you, that would be helpful although I could take pictures if needed.

  2. #2
    Chike is offline Senior Member
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    Default Re: Overclocking on EP43-UD3L

    Read this post, post the info requested in 1-4.
    You can fill the template by picures taken or print it if you have a printer and fill it by hand.
    Voltages for ram are usually +- as specified by manufacturer.
    CPU up to intel specs 1.3625v is nothing to worry about, then you make your own limits.
    memtest86+, Prime95/Orthos, OCCT, and IBT(IntelBurnTest) are usually used to test for stability and to determine optimal settings.

  3. #3
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    Default Re: Overclocking on EP43-UD3L

    My RAM is TWIN2X4096-6400C5

    Welcome to Corsair :: XMS2 Product Information

    In the BIOS settings, I didn't get the other advanced settings for the RAM in Channel A and B, I can go back and get those if it's important.


    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 10x
    Fine CPU Clock Ratio.....................:.5x
    CPU Frequency ...........................: 3.15ghz (300x10.5)


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 300Mhz
    PCI Express Frequency (Mhz) .........: Auto

    C.I.A.2 .................................:[Disabled]


    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<< 800
    PCI Express Clock Drive.................: <<< 800
    CPU Clock Skew (ps)....................: <<< 0
    MCH Clock Skew (ps)...................: <<< 0


    DRAM Performance Control
    Performance Enhance...................: [Turbo]
    Extreme Memory Profile (X.M.P.).....: Option isn't there on my mobo
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: Auto
    Memory Frequency (Mhz) ..............: 800 900
    DRAM Timing Selectable ................: [Auto]

    Standard Timing Control
    CAS Latency Time........................ 5 Auto
    tRCD ......................................... 5 auto
    tRP'........................................... 5 auto
    tRAS.......................................... 18 auto

    Set all Suggested below to highest Values first. Then later you can lower, one at a time, testing as you go

    Advanced Timing Control
    tRRD........................................... 3 auto
    tWTR.......................................... 3 auto
    tWR............................................ 6 auto
    tRFC........................................... 52 auto
    tRTP........................................... 3 auto
    Command Rate (CMD) ....................: 0 auto

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

    Channel A
    Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH
    tRD Phase0 Adjustment...................:Auto <<< 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

    Channel B
    Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH
    tRD Phase0 Adjustment...................:Auto <<< 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

    Motherboard Voltage Control

    CPU
    CPU Vcore….……….........................: 1.28750V
    CPU Termination…..... 1.200V*.......: << 1.200V

    CPU PLL…………………....1.500V*.......: << Not on mine

    CPU Referen.…………....0.755V*.......: <<< .805V

    CPU Reference2………,,0.800V*.......:<<< Not there

    MCH/ICH
    MCH Core…………….....1.100V...........: << 1.100V
    MCH Reference….…….0.760V...........; <<< Not there
    MCH/DRAM Ref.…......0.900V...........: <<< Not there
    ICH I/O……………….....1.500V............: <<< Not there
    ICH Core…………...……1.100V............: <<< 1.550V

    DRAM
    DRAM Voltage ……....1.800V............: 1.800V
    DRAM Termination .…0.900V............: <<< Not there
    Channel A Reference 0.900V............: <<< Not there
    Channel B Reference 0.900V............: <<< Not there

    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................: [Enabled] Enabled if you use Vmware/Virtual PC

    Integrated Peripherals
    Legacy USB Storage Detect ..............[Disabled] *Note* Must be enabled to flash from USB</pre>

    Last edited by grief; 01-10-2010 at 11:28 PM. Reason: adding memset

  4. #4
    Chike is offline Senior Member
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    Default Re: Overclocking on EP43-UD3L

    Set Performance Enhance to standard while you OC the CPU you can try change it back to turbo when you're done.
    CPU Reference should be left auto unless you intend to tweak it.
    Are CPU Vcore/Termination and MCH Core set manually or auto?
    Are standard timing auto? Usually they scale with FSB if not set manually (which MemSet shows they are not).
    Currently memory multiplier is 3.00A, you may need to change it when you increase FSB to 2.40B or 2.50A(or any of the other 2.xx mulripliers that work with best performance results) to keep it around DDR-800.

  5. #5
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    Default Re: Overclocking on EP43-UD3L

    I went ahead and changed Performance Enchance and CPU reference to what you suggested.
    Vcore was set to 1.3000V even though it shows 1.28750V. Termination was set auto at 1.2V. MCH core, ICH I/O and DRAM were all set normal instead of auto.
    All my memory settings are set to auto.

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