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Thread: Help with OC q9450 on P45 DS3R




  1. #11
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Help with OC q9450 on P45 DS3R

    Have you tried driving strength profile 1066? So again, it boots at AUTO for the memory and manual, but just fails Orthos/prime right? And passes memtest86+ right, for how long did you test?

    Can you please again post your full settings tried, you may need to adjust some Of your other voltages

  2. #12
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    Default Re: Help with OC q9450 on P45 DS3R

    Yes, I set the drive strength to 1066 and prime failed right away on 2 cores

    I ran test #5 on memtest86+ for 5 passes and got no error. Is that the correct way to run memtest86+?

    Before posting my latest BIOS settings, I'd like to try some of your suggestions again. What would be the right order for changing the values in the BIOS?
    1. Start with the suggested BIOS settings as in post #2 then
    2. Try various values for voltages then
    3. Try various values in advance clock control then
    4. Try various values in advance timing control

  3. #13
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    Default Re: Help with OC q9450 on P45 DS3R

    Well I do tests like that for a quick answer to decide whether a change I just made is working "OK" or not. Full tests for several hours is best

    Set voltages first, then clock controls, then timings

  4. #14
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    Default Re: Help with OC q9450 on P45 DS3R

    This is my latest BIOS settings:

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: [Auto]
    CPU Clock Ratio ..........................: 8
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: 3.36Ghz (420x8)

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 420Mhz
    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)....................: 100
    MCH Clock Skew (ps)...................: 150

    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (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..........................................15

    Advanced Timing Control
    tRRD...........................................3
    tWTR.......................................... 3
    tWR............................................6
    tRFC...........................................52
    tRTP...........................................3
    Command Rate (CMD) ....................2

    Drive Strength Profile............800

    Channel A
    Static tRead Value.........................11
    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.........................:11
    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.………... Manual
    CPU
    CPU Vcore….……….....................: 1.4
    CPU Termination…..... 1.200v.......: 1.34
    CPU PLL…………………....1.500V...........: 1.57
    CPU Referen.…………....0.76V..........: 0.818

    MCH/ICH
    MCH Core…………….....1.100V...........: 1.24
    MCH Reference….…….0.76V............: 0.808
    MCH/DRAM Ref.…......0.900V.........: 0.9
    ICH I/O……………….....1.5V.............: 1.5

    DRAM
    DRAM Voltage ……....1.800V............: 1.9

    DRAM Termination .…0.900V............: 0.9
    Channel A Reference 0.900V...........: 0.9
    Channel B Reference 0.900V...........: 0.9

    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]

    After 3 hours of running prime, one core stopped. When I set the drive strength profile to 1066, one core stopped after running prime for 15 minutes.

    What does it point to when one or two cores stop after running prime for a few hours or it could be any settings in the BIOS?

  5. #15
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    Default Re: Help with OC q9450 on P45 DS3R

    For the above settings, CPU-Z idle is 1.36 and load is 1.296

  6. #16
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    Default Re: Help with OC q9450 on P45 DS3R

    Could be heat, or voltages still need a bit of a adjustment. Have you tried tRd (Static tRead) of 8 yet?

    Hey, if you use the Old Control + F1 hotkey, do you see CPU Referen 2 in your BIOS? If so it needs set as well.

    Maybe try a bump of all those voltges a notch, that load voltage is maybe why it fails after a bit >>>
    CPU Vcore….……….....................: 1.4 << Maybe one more
    CPU Termination…..... 1.200v.......: 1.34 << Maybe 1.36, try above bump first
    CPU PLL…………………....1.500V...........: 1.57
    CPU Referen.…………....0.76V..........: 0.818

    *NOTE* Incase you do see both Reference voltages
    CPU Termination…..... 1.200V*.......: <<<
    CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above)
    CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above)

  7. #17
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    Default Re: Help with OC q9450 on P45 DS3R

    Do I hit Ctrl+F1 on the main BIOS screen?

    Many people have mentioned that the max voltage for q9450 is 1.3625. Is that the idle voltage in CPU-Z? If I bump the Vcore up a little bit and the idle voltage is more than 1.3625, is it safe?

    If the load voltage may be the reason why my system failed, what should the load voltage be?

  8. #18
    Lsdmeasap's Avatar
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    Default Re: Help with OC q9450 on P45 DS3R

    Yes, on the MAIN Screen of the BIOS

    Yes, that would be the Intel recommended safe voltage. In windows at idle

    Ya, it will be safe, but it will lessen the life of the CPU. As long as your temps are good it will be fine, Surely until you want a new CPU and board though for sure.

    Why so high though? You should for sure not need that much at 3.36

    Have you tried >>>
    CPU Clock Skew (ps)....................: 150
    MCH Clock Skew (ps)...................: 250

  9. #19
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    Default Re: Help with OC q9450 on P45 DS3R

    Nothing happens when I hit Ctrl+F1 so I guess I don't have CPU Ref 2.

    I tried the following suggestions:
    - Pump the Vcore past 1.4
    - Set CPU Termination to 1.36
    - Set CPU PLL to 1.57
    - Set CPU Clock Skew to 150
    - Set MCH Clock Skew to 250.

    It doesn't matter what the setting is, one core fails right away when I run prime

  10. #20
    Lsdmeasap's Avatar
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    Default Re: Help with OC q9450 on P45 DS3R

    Does memtest86+ test stable for 8 hours or more? Run it while you sleep, because if your ram is not stable your orthos will always fail

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