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Thread: Starting voltage on Q9550 & P5QE

  1. #1
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    Default Starting voltage on Q9550 & P5QE

    Hi Everyone,
    Having never touched the settings in bios regarding my cpu, is 1.22 a good
    starting point when leaving the auto setting.
    I suppose I can read, and read but in the end I,ve got to jump in sometime.

    Thankyou Alan.

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    Quote Originally Posted by Ribbons View Post
    Hi Everyone,
    Having never touched the settings in bios regarding my cpu, is 1.22 a good
    starting point when leaving the auto setting.
    I suppose I can read, and read but in the end I,ve got to jump in sometime.

    Thankyou Alan.
    Some more reading for you!

    When you enter the bios the options when you first enter the bios are as shown.

    At the top of the screen there will be the following options

    Main
    - This contains the basic settings, e.g. time, date and what drives are connected to the computer

    Ai Tweaker - this is where all the overclocking options are placed.

    Advanced - This contains the options for USB configuration and CPU options, e.g. EIST and C1E

    Power - This contains info such as suspend mode, this is also where you will find the hardware monitor
    you can monitor the voltages and temperatures of your system.

    Boot - This contains the options to change boot priority and Hard Disk priority.

    What we will be focusing on is the Ai Tweaker part of the bios, this is where all
    the settings for overclocking are located.

    Once you enter the Ai Tweaker tab it will show up like this:

    Ai Overclock Tuner - this option is for setting whether to manually adjust the fsb and ratio settings
    for overclocking the CPU, We want this set to [Manual] so we can put in the frequencys we are wanting
    to achieve

    CPU Ratio Setting - this is used to select the Ratio or Multiplier of the CPU, this varies depending
    on what CPU you have, here is some basic multipliers for some of todays common CPUs

    min max
    E6300: 6x - 7x
    E6320: 6x - 7x
    E6400: 6x - 8x
    E6420: 6x - 8x
    E6550: 6x - 7x
    E6600: 6x - 9x
    E6700: 6x - 10x
    E6750: 6x - 8x
    E6850: 6x - 9x
    X6800: 6x - (unlocked)
    E2220: 6x - 12x
    E2200: 6x - 11x
    E2180: 6x - 10x
    E2160: 6x - 9x
    E5200: 6x - 12.5x
    E7200: 6x - 9.5x
    E7300: 6x - 10x
    E8200: 6x - 8x
    E8400: 6x - 9x
    E8500: 6x - 9.5x
    E8600: 6x - 10x
    Q8200: 6x - 7x
    Q9300: 6x - 7.5x
    Q9400: 6x - 8x
    Q9450: 6x - 8x
    Q9550: 6x - 8.5x
    Q9650: 6x - 9x
    Q6600: 6x - 9x
    Q6700: 6x - 10x
    QX6700: 6x - (unlocked)
    QX6850: 6x - (unlocked)
    QX6800: 6x - (unlocked)
    QX9650: 6x - (unlocked)
    QX9770: 6x - (unlocked)

    FSB Frequency
    - this is the frequency of the Front Side Bus, this is used to determine the speed of the
    CPU. For example, if you set this to 400 and you had the Ratio CMOS Setting set to 9x, this would cause the
    CPU speed to be 3600Mhz or 3.6Ghz.

    PCIE Frequency - This slightly boosts your graphics performance. However, anything set over 120 can corrupt
    your hard drive, It is recommended to set this to 105.

    FSB Strap to North Bridge - this is the strap the northbridge and the FSB share, it helps determine what
    memory frequency we will use. It is recommended to set this to 333 for most of the latest cpus

    DRAM Frequency - This is the frequency the RAM will be operating at, for most people it is recommended
    to select the first option.

    DRAM Timing Control - this is used to determine what timings the memory will have, this depends on what
    your memory is capable of. This will be listed on your memory packaging. If you cannot find them, you
    can leave this on Auto - If you do know the timings, relative to what you set in the DRAM Frequency
    you can set the timings of your ram.
    If you are new to overclocking, you will not have to worry about these for now. These will be explained
    in more detail later in this guide.

    DRAM Static Read Control - Auto
    DRAM Read Training - Auto
    MEM. OC Charger - Auto
    Ai Clock Twister - Auto
    Ai Transaction Booster - Auto

    Voltage Control

    CPU Voltage
    - 65nm CPUs, the E6xxx series and Q6xxx series cpus it is save for 24/7 usage to go up to 1.5v

    - 45nm CPUs, the E8xxx and Q9xxx series, it is recommended to only go up to 1.4v, anything above that
    can cause gradual degradation. Meaning it will slowly kill itself.

    CPU GTL Reference - Auto

    CPU PLL Voltage - For any gradual overclock with a dual core, you can leave this on Auto, but for any
    Quad Core CPUs, it is recommended to set this to 1.6v, the stock voltage is 1.5. This can help with
    overclocking a quad core.

    FSB Termination Voltage or VTT
    - it is recommended to keep this under 1.4v for any 24/7 setup
    as this can also cause degradation on 45nm cpu's. Setting this to 1.3 can alleviate any bottleneck
    it might cause, as well as still being safe.

    DRAM Voltage - This depends on what voltage your memory comes stock with, this can range from 1.8-2.4v
    depending on the speed and timings of your RAM. It is recommended to stay below 2.2v with active cooling
    (having a fan blowing over top of the ram). But it is also recommended if you want to keep your warranty
    of your ram, to keep to the stock voltage.

    North Bridge Voltage - As the DRAM frequency is controlled here, it can help with FSB overclocking
    it is recommended to stay under 1.6v for any 24/7 usage.

    South Bridge 1.5 Voltage - You can leave this set to Auto

    PCIE Sata Voltage - Auto

    Load-Line Calibration - Enabling this can help with vDroop.
    vDroop is the voltage drop of the cpu, e.g. you could set 1.4v in bios and then in windows you will find the
    voltage will be set to 1.37v, meaning that you have a vDroop of 0.03v. This can increase also when you are
    putting a load onto the CPU. If the voltage drops to low, it can cause system instability, as it will not supply
    enough voltage to the CPU, making it unstable.
    It is recommended to have this set to [Enabled]

    CPU Spread Spectrum - Auto
    PCIE Spread Spectrum - Auto
    CPU Clock Skew - Auto
    NB Clock Skew - Auto
    MB Clock Skew - Auto

    This explains the basics of the settings for overclocking on the P5Q Pro Motherboard
    Here are some settings that can be used to achieve a stable overclock


    this is used to achieve 4275Mhz or 4.275Ghz on a E8500 - should be possible on most E8500's

    Ai Overclock Tuner : Manual
    CPU Ratio Setting : 9.5
    FSB Frequency : 450
    PCIE Frequency: 105
    FSB Strap to North Bridge : Auto (p5q pro has some problems with straps)
    DRAM Frequency: Auto, this will be set to 901Mhz(or change to the mhz of your memory)
    DRAM Timing Control: Auto (adjust to your timings of your memory)

    DRAM Static Read Control: Auto
    Dram Read Training : Auto
    MEM OC Charger : Auto
    Ai Clock Twister : Auto
    Ai Transaction Booster : Auto

    CPU Voltage : Set what you need, this will range from 1.25-1.4v
    CPU GTL Reference: Auto
    CPU PLL Voltage : 1.50
    FSB Termination Voltage: 1.30
    DRAM Voltage : 2.1
    NB Voltage : Auto
    PCIE Sata Voltage: Auto

    Load Line Calabration : Enabled
    CPU Sread Spectrum : Disabled
    PCIE Spread Spectrum : Disabled
    CPU Clock Skew: Auto
    MB Clock Skew: Auto



    These Settings are used to Achieve 4Ghz or 4005Mhz on a E8500 - should be possible on every E8500


    Ai Overclock Tuner : Manual
    CPU Ratio Setting : 9
    FSB Frequency : 445
    PCIE Frequency: 105
    FSB Strap to North Bridge : Auto (p5q pro has some problems with straps)
    DRAM Frequency: Auto, this will be set to 890Mhz(or change to the mhz of your memory)
    DRAM Timing Control: Auto (adjust to your timings of your memory)

    DRAM Static Read Control: Auto
    Dram Read Training : Auto
    MEM OC Charger : Auto
    Ai Clock Twister : Auto
    Ai Transaction Booster : Auto

    CPU Voltage : Set what you need, this will range from 1.20-1.4v
    CPU GTL Reference: Auto
    CPU PLL Voltage : 1.50
    FSB Termination Voltage: 1.30
    DRAM Voltage : 2.1
    NB Voltage : Auto
    PCIE Sata Voltage: Auto

    Load Line Calabration : Enabled
    CPU Sread Spectrum : Disabled
    PCIE Spread Spectrum : Disabled
    CPU Clock Skew: Auto
    MB Clock Skew: Auto



    Settings for Q9550 for 3.6ghz - should be possible for every Q9550

    Ai Overclock Tuner : Manual
    CPU Ratio Setting : 8.5
    FSB Frequency : 424
    PCIE Frequency: 105
    FSB Strap to North Bridge : Auto (p5q pro has some problems with straps)
    DRAM Frequency: Auto, this will be set to 848Mhz (or change to the mhz of your memory)
    DRAM Timing Control: Auto (adjust to your timings of your memory)

    DRAM Static Read Control: Auto
    Dram Read Training : Auto
    MEM OC Charger : Auto
    Ai Clock Twister : Auto
    Ai Transaction Booster : Auto

    CPU Voltage : Set what you need, this will range from 1.20-1.4v
    CPU GTL Reference: Auto
    CPU PLL Voltage : 1.50
    FSB Termination Voltage: 1.30
    DRAM Voltage : 2.1
    NB Voltage : 1.2-1.5v (quads are alot harder than dual cores to clock, the NB voltage helps with the higher FSB on quad)
    PCIE Sata Voltage: Auto

    Load Line Calabration : Enabled
    CPU Sread Spectrum : Disabled
    PCIE Spread Spectrum : Disabled
    CPU Clock Skew: Auto
    MB Clock Skew: Auto



    Settings for Q9550 for 3.8ghz - Might not be possbile on every motherboard (all motherboards overclock differently). CPU should be capable.

    Ai Overclock Tuner : Manual
    CPU Ratio Setting : 8.5
    FSB Frequency : 448
    PCIE Frequency: 105
    FSB Strap to North Bridge : Auto (p5q pro has some problems with straps)
    DRAM Frequency: Auto, this will be set to 896Mhz (or change to the mhz of your memory)
    DRAM Timing Control: Auto (adjust to your timings of your memory)

    DRAM Static Read Control: Auto
    Dram Read Training : Auto
    MEM OC Charger : Auto
    Ai Clock Twister : Auto
    Ai Transaction Booster : Auto

    CPU Voltage : Set what you need, this will range from 1.20-1.4v
    CPU GTL Reference: Auto
    CPU PLL Voltage : 1.6
    FSB Termination Voltage: 1.30-1.40 (try 1.3, and if its not stable, raise it)
    DRAM Voltage : 2.1
    NB Voltage : 1.2-1.5v (quads are alot harder than dual cores to clock, the NB voltage helps with the higher FSB on quad)
    PCIE Sata Voltage: Auto

    Load Line Calabration : Enabled
    CPU Sread Spectrum : Disabled
    PCIE Spread Spectrum : Disabled
    CPU Clock Skew: Auto
    MB Clock Skew: Auto

  3. #3
    New Member

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    Ribbons is offline

    Last Online
    12-03-2011 @ 05:24
    Join Date
    Feb 2011
    Location
    London
    Posts
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    CPU: Intel Q9550
    M/B: P5QE
    RAM: 4gbG Skill F2-8500CL5D
    GPU: GTX 570
    • Ribbons's Full Spec's
      • Case:
      • Coolermaster HAL 912
      • PSU:
      • Antec truepower 650 modular
      • Cooling:
      • Noctua NH-D14
      • Sound:
      • Soundblaster synergy 2ZS
      • Monitor:
      • Samsung P2450
      • OS:
      • Win 7 64bit
    Thanks
    6
    Thanked 0 Times in 0 Posts
    Points: 553, Level: 6
    Points: 553, Level: 6
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    Points required for next Level: 197
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    Default

    Hi Vinman,
    Thankyou for the reply I had already jumped in and changed a few settings
    CPU Ratio 8.5
    FSB Freq 400
    FSB Strap to NB 400 mhz
    DRAM Freq DDR2 1066
    DRAM vol 2.0
    CPU voltage 1.2250
    C1E Disabled
    Everything is ok at the moment, I tried your settings for 3.6 but failed to boot so reverted back to 3.4

    This is a link to image shack with the CPUID & Core temp with idle & load readings
    Im happy as larry at the moment. Alan
    http://img17.imageshack.us/img17/8105/coretemph.jpg

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