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Thread: OC Q9550 on EP45-UD3P GSkill ram @3.8




  1. #11
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Signal you may be able to boot tRD 8 or even 7 if you add some MCH Voltage and get the 2.00B Multi working for you.

    Yeap, sorry guys 4Ghz is all you can hope for without Ln2

    Faster way to check stability.... Hmm, you guys tried Intel Burn Test? It will get HOT, but your CPU will live and you find out very fast if it is stable or not. You can find it here with Tons of other apps >>>
    http://forums.tweaktown.com/f69/inte...94/#post262787

    Good luck guys!

  2. #12
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Thanks again LSDMEASAP. You must type very fast :)

    Signal9- What case are you using? Which way did you set your HSF - exhaust out the back or the top? I am considering a faster fan but I love how quiet the OCZ fan is. Looking at maybe a Cooler Master Blue LED (Y720DCD-25T1-GP) 110 CFM 38.0dBA at 2500RPM... R... a SilverStone SST-FM121 110 CFM 39.5dBA at 2400rpm. Either one about $20 plus ship.
    What SuperPi 1M result? I am around 12.3
    Last edited by SCTony; 01-14-2009 at 03:51 AM.
    Q9550 C1 step
    GA-EP45-UD3P bios F7a
    2x2GB G.Skill 1066
    http://www.newegg.com/Product/Produc...82E16820231166
    OCZ Vendetta II HSF
    MSI R4830 video
    HAF-932 case
    XP Home SP3

  3. #13
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    SCTony,

    My case is a Cosmos 1000. It came with 4 120mm fans. 2 on top, 1 in back and 1 on bottom. Bottom sucks air in, while the rest blow air out.

    My cpu fan blows air through the heat sinks and out back of the case where just perfect location is another 120mm fan sucking that hot air outside of the case.

    I used artic silver and i swapped the plastic pushpin mount for a xigamatic metal mounting plate.


    I did recently add another 120mm fan for the hard-drive cage area since Coolermaster included a spare fan mounting assembly for this.

  4. #14
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Signal9 - our memory timings are the same, just as LSD recommended. Seem to be working fine. I changed my clock skew back to 0 with no problems so far. I have lowered some of my voltages a bit. It helps to have comparable systems. Still tweaking Some settings will pass IntelBurnx5 and fail Prime.
    Q9550 C1 step
    GA-EP45-UD3P bios F7a
    2x2GB G.Skill 1066
    http://www.newegg.com/Product/Produc...82E16820231166
    OCZ Vendetta II HSF
    MSI R4830 video
    HAF-932 case
    XP Home SP3

  5. #15
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Let me know how things go for you when you get Prime stable.

    Mine passed intel burn as well.

  6. #16
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    If you guys keep having prime issues but pass intel burn test please post you settings as you may need to adjust (vary from default) your MCH Ref voltage %.

    If you want to look into this while I am out, please see my signature as I just posted some info about this setting from my P45-DS4P Review/Guide I am working on

    You may need .68-.72 %

  7. #17
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    @LSDMEASAP Hello. Please help me understand this about setting the MCH Ref and CPU Ref percentages. I understand you about setting the Vtt to default and changing the ref values to reflect whatever percentage i want to use. OK :) now when i reset Vtt to what i want ....then go to ET6 and look... i will see my new Vtt but the ref voltages i see are the (new percentage) of the default Vtt? not the new percentage of the new Vtt? Thanks again.
    Q9550 C1 step
    GA-EP45-UD3P bios F7a
    2x2GB G.Skill 1066
    http://www.newegg.com/Product/Produc...82E16820231166
    OCZ Vendetta II HSF
    MSI R4830 video
    HAF-932 case
    XP Home SP3

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