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Thread: Can't Overclock q9450 Past 3.32 w/ EP43-DS3L




  1. #1
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    Default Can't Overclock q9450 Past 3.32 w/ EP43-DS3L

    Hi,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
    <o:p></o:p>
    I've recently built a PC and I'm having trouble attaining a 3.6 ghz overclock as my system just cycles after clocking beyond 3.32 ghz. Past 3.32, the bios will not load - only a blank screen and then the system restarts with the "optimized" settings. I've been adjusting the bios for quite some time now, however I can't get that FSB beyond 415. For now, I’d just like the system to post into anything beyond 3.32. Any ideas?<o:p></o:p>
    <o:p></o:p>
    Here are my system specs:<o:p></o:p>
    <o:p></o:p>
    q9450<o:p></o:p>
    GA-EP43-DS3L<o:p></o:p>
    9800 GX2<o:p></o:p>
    4Gb XMS Corsair RAM (5-5-5-18) rated at 800 mhz<o:p></o:p>
    650w PSU<o:p></o:p>
    <o:p></o:p>

    Here is my current bios config (F8):<o:p></o:p>
    <o:p></o:p>
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: [Auto]
    CPU Clock Ratio ..........................: 8
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: 3.32Ghz (415x8)

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 415Mhz
    PCI Express Frequency (Mhz) .........:100
    C.I.A.2 .................................:[Disabled]

    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<< 800
    PCI Express Clock Drive.................: <<< 900
    CPU Clock Skew (ps)....................: <<< 50
    MCH Clock Skew (ps)...................: <<< 150

    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    (G)MCH Frequency Latch...............: 400
    System Memory Multiplier ..............: 2.00D
    Memory Frequency (Mhz) ..............: 840
    DRAM Timing Selectable ................: [Manual]
    Standard Timing Control
    CAS Latency Time........................5
    tRCD .........................................5
    tRP'...........................................5
    tRAS..........................................18

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

    Channel A
    Static tRead Value.........................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
    Dimm2 Clock Skew Control...............:Auto

    Channel B
    Static tRead Value.........................: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
    Dimm2 Clock Skew Control...............:Auto

    Motherboard Voltage Control
    Voltage Type.………... normal
    CPU
    CPU Vcore….……….........................: 1.34375v
    CPU Termination…..... 1.200V*.......: <<< Auto
    CPU PLL…………………....1.500V*.......: <<< Auto
    CPU Referen.…………....0.76V*.......: <<< Auto

    MCH/ICH
    MCH Core…………….....1.100V...........: << Auto
    ICH I/O……………….....1.550V............: <<< Auto

    DRAM
    DRAM Voltage ……....1.800V............: 1.9
    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]<o:p></o:p>
    <o:p></o:p>

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Can't Overclock q9450 Past 3.32 w/ EP43-DS3L

    Try this for 3.6 >>>>

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: [Auto] << May want to use Fast or Turbo
    CPU Clock Ratio ..........................: 8
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: 3.60Ghz (450x8)

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 450Mhz
    PCI Express Frequency (Mhz) .........:100
    C.I.A.2 .................................:[Disabled]

    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<< 800
    PCI Express Clock Drive.................: <<< 900
    CPU Clock Skew (ps)....................: <<< 50-150
    MCH Clock Skew (ps)...................: <<< 150-250

    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    (G)MCH Frequency Latch...............: 400
    System Memory Multiplier ..............: 2.00D
    Memory Frequency (Mhz) ..............: 840
    DRAM Timing Selectable ................: [Manual]

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

    Advanced Timing Control
    tRRD...........................................3-4
    tWTR.......................................... 3-6 (Will likely need 12 to start, so please set that first, then lower after you get it booted thru once)

    tWR............................................4-6 (Will likely need 14 to start, so please set that first, then lower after you get it booted thru once)

    tRFC...........................................52-65
    tRTP...........................................3-6
    Command Rate (CMD) ....................:2

    Channel A
    Static tRead Value.........................8-10
    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
    Dimm2 Clock Skew Control...............:Auto

    Channel B
    Static tRead Value.........................:8-10
    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
    Dimm2 Clock Skew Control...............:Auto

    Motherboard Voltage Control
    Voltage Type.………... normal
    CPU
    CPU Vcore….……….........................: 1.34375v <<< May need far more then this, as your board has a .5-.7 Vdrop/vdroop so what you get in windows will be that much minus what you set. Keep this in mind

    CPU Termination…..... 1.200V*.......: <<< 1.25-1.34
    CPU PLL…………………....1.500V*.......: <<< 1.5
    CPU Referen.…………....0.76V*.......: <<< Auto

    MCH/ICH
    MCH Core…………….....1.100V...........: << set 1.2-1.3 for 4GB
    ICH I/O……………….....1.550V............: <<< Auto

    DRAM
    DRAM Voltage ……....1.800V............: 1.9 << What is your ram sticker say? If 1.9, then you may be fine with this if it passes memtest, but I would set 2.0 anyway

    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]

  3. #3
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    Default Re: Can't Overclock q9450 Past 3.32 w/ EP43-DS3L

    Hmm... I tried your config however it still won't even post. I tried all sorts of variations and the highest multipler it will go is 419. I can get the system fully stable with a fsb of 419 but it can't post at anything higher... Would having better ram help with a rating of 1066? Any other configs I should try?

    Thanks for the response:)

  4. #4
    Lsdmeasap's Avatar
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    Default Re: Can't Overclock q9450 Past 3.32 w/ EP43-DS3L

    Did you set twr and twtr to 12 and 14 first and then the rest?

    What was the highest voltage for your CPU you tried? At those loose timings it should for sure do 900-950 at least. Faster ram would not be my worry

    What is the voltage written on the sticker, you may need 2.1V

    Did you try 333 MCH latch? How hot is your CPU cores at 419 FSB?

    So, what is your full settings now at 419 FSB
    Last edited by Lsdmeasap; 12-01-2008 at 03:03 PM.

  5. #5
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    Default Re: Can't Overclock q9450 Past 3.32 w/ EP43-DS3L

    Yes, I kept twr and twtr at 12 and 14 respectfully when changing the other timings.

    The highest voltage I have tried has been 1.4 however still no luck.

    Further, I don't believe the ram is the problem as I can run the ram with a MCH latch of 333 = 1066mhz @ 419 fsb stable.

    Heat is not the problem either as with 419 fsb, the CPU doesn't go higher than 50C.

    A neat fact is that I can set all bios settings to "auto" and set the fsb at 419 and the system will still post. However, if I try and crank that fsb up one, all hell breaks loose and the system won't post for anything. Also, the system only cycles once - it tries to boot up, shuts down then reloads with the default settings.

    I tried downgrading the bios to f7 but still the same problem. Any ideas?

    Thanks

  6. #6
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    Default Re: Can't Overclock q9450 Past 3.32 w/ EP43-DS3L

    One more thing...

    The ram is rated @ 1.80v stock.

  7. #7
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    Default Re: Can't Overclock q9450 Past 3.32 w/ EP43-DS3L

    Not sure if this is the problem but some Q9450 and motherbaord have what i was told to be FSB hole i ran in to this problem with a old evga 750i MB that i had it was fixxed with bios update try going up to 425/430@1.3625-1.40 would not go higher than that and see if that helps.The Q9450 is a great OC chip to around 3.6 or so you should be able to get more out of it than u are.
    Last edited by Lsdmeasap; 12-01-2008 at 03:03 PM.
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  8. #8
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    Default Re: Can't Overclock q9450 Past 3.32 w/ EP43-DS3L

    With that board and a good cooler you should be able to get at least 440MHz FSB... try putting the FSB to 435MHz with your vcore around 1.370-1.385V, also crank the MCH and push the CPU termination up to at least 1.3V
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  9. #9
    Lsdmeasap's Avatar
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    Default Re: Can't Overclock q9450 Past 3.32 w/ EP43-DS3L

    Try using MCH latch 400, only change this by itself after changing trd to 8 or 9

    Please post full settings of where you are as of now. 1.8V ram is not very good, I would push that to 2.0 or return it for better ram, this is likely your issue. 1.8V ram is budget and likely not able to go much past standard clocks

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