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Thread: EP45-UD3P+Q9550 Fine Tuning My OC, Need Some Help




  1. #1
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    Question EP45-UD3P+Q9550 Fine Tuning My OC, Need Some Help

    Hi all,

    My system now 24hr Prime stable. My purpose is to lower my Vcore and keep it stable @ 3.82GHz
    Any ideas ?

    Code:
    **MB Intelligent Tweaker(M.I.T.)
    
    Robust Graphics Booster ...............:[Auto]
    CPU Clock Ratio .......................:[8]
    Fine CPU Clock Ratio...................:[+0.5]
    CPU Frequency .........................:3.82GHz (450x8.5)
    
    **Clock Chip Control 
    
    Standard Clock Control
    CPU Host Clock Control................: [Enabled] 
    CPU Host Frequency (Mhz) .............: [450]
    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) .....1066.......: [900]
    DRAM Timing Selectable ................: [Manual]
    
    **Standard Timing Control
    
    CAS Latency Time........................: [5]
    tRCD ...................................: [5]
    tRP'....................................: [5]
    tRAS....................................: [15]
    
    **Advanced Timing Control
    
    tRRD...................4....................: [3]
    tWTR...................4....................: [3]
    tWR....................8....................: [6]
    tRFC...................68...................: [52]
    tRTP...................4....................: [3]
    Command Rate (CMD) ....0....................: [Auto] 
    
    
    **Channel A
    
    All Auto
    
    **Channel B
    
    All Auto
    
    **Motherboard Voltage Control
    
    CPU
    Load-Line Calibration.......................: [Enabled]
    CPU Vcore.............1.25000V..............: [1.38125V]  CPU-Z: Idle 1.36v Load 1.344v-1.36v
    CPU Terminatio........1.200V................: [1.240V]
    CPU PLL...............1.500V................: [1.570V]
    CPU Reference.........0.760V................: [Auto]
    
    
    MCH/ICH
    MCH Core..............1.100V...............: [1.200V]
    MCH Reference.........0.760V...............: [Auto]
    MCH/DRAM Reference....0.900V...............: [Auto]
    ICH I/O...............1.500V...............: [1.570V]
    ICH Core..............1.100V...............: [1.200V]
    
    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....................: [Disabled]
    CPU Enhanced Halt (C1E)......................: [Disabled]
    CPU Thermal Monitor 2(TM2) ..................: [Disabled]
    CPU EIST Function............................: [Disabled]
    Virtualization Technology....................: [Enabled]

    My system

    CPU: Q9550 C1@3.82GHz 57c@load
    CPU Cooling: Scythe Yasya
    Memory: G.Skill 2x2GB DDR2-1066 CL5
    GPU: Sapphire Radeon 4870 512MB DDR5
    MB: Gigabyte GA-EP45-UD3P rev 1.1 Bios ver F10
    HDD: Samsung F3 1TB x2+Seagate ST3500320AS 500GB
    PSU: SeaSonic M12II-620W Bronze
    Case: TT Armor Plus MX
    Display: Hanns-G HG281DPB 28"
    OS: Windows 7 Ultimate 64bit
    Last edited by LiamSR; 07-21-2010 at 06:16 AM.

  2. #2
    kick's Avatar
    kick is offline Senior Member
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    Default Re: EP45-UD3P+Q9550 Fine Tuning My OC, Need Some Help

    wot can i tell ya.
    If your happy with your overclock the cpu v isnt that high now.

    My Q8400 is probably providing more performance than your Q9550
    http://forums.tweaktown.com/f69/q840...igh-fsb-37179/

    but for near max performance q9550 check out posts by Conners and his search for 500fsb and beyond like a stable 4.1 Ghz on q9550 on the ud3p.
    450 fsb(cpu ref) you should be able to use a multiplier other than 2:00 for your memory,to get max bandwidth/minimum latency.
    If you do find conner's posts and get like 480-490 cpu ref you will get higher performance than me I would hope.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  3. #3
    Lsdmeasap's Avatar
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    Default Re: EP45-UD3P+Q9550 Fine Tuning My OC, Need Some Help

    I bit more Vtt might allow you to lower your vcore a notch or three

  4. #4
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    Default Re: EP45-UD3P+Q9550 Fine Tuning My OC, Need Some Help

    Quote Originally Posted by kick View Post
    wot can i tell ya.
    If your happy with your overclock the cpu v isnt that high now.

    My Q8400 is probably providing more performance than your Q9550
    http://forums.tweaktown.com/f69/q840...igh-fsb-37179/

    but for near max performance q9550 check out posts by Conners and his search for 500fsb and beyond like a stable 4.1 Ghz on q9550 on the ud3p.
    450 fsb(cpu ref) you should be able to use a multiplier other than 2:00 for your memory,to get max bandwidth/minimum latency.
    If you do find conner's posts and get like 480-490 cpu ref you will get higher performance than me I would hope.
    I can get to 4.25GHz stable, when the ambient temp below 25c, but now it's summer and the ambient temp is above 30c so I prefer keeping my oc below max.


    Quote Originally Posted by Lsdmeasap View Post
    I bit more Vtt might allow you to lower your vcore a notch or three
    I'll try it... Thanks

    Something weird happed (before I changed the Vtt), I got BSOD on bootup although the oc is 24hr prime stable and the temp is good.

  5. #5
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  6. #6
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    Default Re: EP45-UD3P+Q9550 Fine Tuning My OC, Need Some Help

    Unfortunately not, It seems that my OC isn't stable as I thought, It passes 24hr prime but when I try to watch HD movie my system hangs (works fine without oc).

    Any ideas ?
    Last edited by LiamSR; 07-24-2010 at 09:29 PM.

  7. #7
    Lsdmeasap's Avatar
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    Default Re: EP45-UD3P+Q9550 Fine Tuning My OC, Need Some Help

    That could just be caused by a bad GFX Driver, are you using the latest?

    Since it is fine at stock that may not be the issue though, you say Prime95 stable but how about other tests such as Memtest86+ or LinX/Intel Burn Test?

    Might just need 1.24 or so MCH Core voltage. Can you check with Memset what tRD you are getting using auto, it might be set too low.

    Get it here, the setting is called Performance Level in Memset
    Tweakers.fr

  8. #8
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    Default Re: EP45-UD3P+Q9550 Fine Tuning My OC, Need Some Help

    I have the latest driver, I tried to reinstall it but no joy.

    I did a Memtest check it's all ok. It passes 20 LinX loops without any errors.

    Here is the Memset info (tRD set to '9') -



    Thanks for the help

    Edit:

    You were right it is program related, I removed the ATI driver and the Codecs (K-Lite) and now it works ok... I'll try to install ATI driver again to see if that is the cause.
    Last edited by LiamSR; 07-28-2010 at 03:01 AM.

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