q6600 G0 / abit ip35 pro oc help

hello all,
I'm new to this platform and needed some help oc'ing.
I have: q6600 G0
abit ip35-pro
crucial ddr800 1gbx2
antec quatro 850w ps

what should be max
core freq:
cpu voltage:
mem voltage:
core temp:

also would there be any other voltages i have to adjust?
18 answers Last reply
More about q6600 abit ip35 help
  1. This takes a few mins to read & will answer most questions:


    This is your cpu specs:


    What's the model # of the ram? Ballistix?

    What's your cpu cooler & case cooling?

    Suggested settings:

    core freq: 2997mhz
    fsb: 333mhz
    multi: x9
    cpu voltage: 1.3-1.4v
    mem voltage: ~2.1v
    core temp: ~35'c idle & ~55'c load

    The IP35 is said to go as high as 500mhz or 2000Mhz FSB. Start low & go up gradually. Just boot into windows. Run "Super Pi Mod" 2MB. If it fails, back down one notch in FSB to previously safe. Either increase VCORE, MCH voltages & try again or be happy with the o/c.
  2. Overclocking result is different from component to component, system to system, so there is no standard setting. However, before you attempt, check out the following guide and make sure you have sufficient cooling for your CPU and chipset.
  3. Hello, this is my first post, and thank you for all for your help in advance!

    I have the exact hardware as the OP does (with the exception of the PSU), and I'm wondering about overclocking as well. I read a few articles having Googled "overclocking for newbs" among other things and came across article:


    From the article, I figured I could do at least the following (with sufficient cooling) without any real problems:

    Because the Q6600 (stock speed is 2400MHz) has an FSB of 1066MHz (according to Newegg), and because modern Intel CPUs utilize a "quad pumped" FSB, then theoretically I should be able to set the Abit Ip35 Pro clock speeds to a comfortable maximum of 266.5Mhz x 9 multi, that gives 2.4Ghz and since 1066/4 is 266.5.

    The speed at which is the MCH (FSB) runs is the speed at which the RAM runs. Therefore, a DDR2800 module should be able to run comfortably at 400Mhz since it's double sided.

    This means I can OC the system "comfortably" by bringing the FSB to a maximum of 400Mhz, manipulating the multiplier, CPU+mem+MCH voltages, and of course, getting rid of heat. If i'm wrong about anything, or my chain of thought is wrong, please let me know

    If i'm right, then my question is: after a successful OC and boot into windows, a stress test says the system is unstable. therefore I need to adjust the voltages. which one do i change first?

    My aim is 3.2-3.6Ghz. Thanks again, and happy holidays (and overclocking!).
  4. It isn't recommended trying to get from 3.2-3.6 from 2.4 in one try. First thing that I would do is not touch the voltages at all and slowly increase the speed by 100-200 mhz every time and reboot. When it is no longer stable increase the voltages in small increments.

    I would not touch the ram more than +.2 unless your trying for 3.6
  5. Using an Abit IP35-Pro, a Q6600 B3, and Crucial Ballistix Tracer 1066(2.2V), I was able to OC to 3.0Ghz (334x9) on stock voltages. To get to 3.24Ghz (360x9), I had to increase voltage on CPU to 1.39 due to vdroop, with all other voltages at stock.

    Using water cooling, I was able to get it to 3.6Ghz (400x9) at 1.5V, and increasing MCH to 1.72, ICH to 1.19, and ICHIO to 1.65. These are drastic voltage levels and should not be attempted unless you are sure of what you are doing, as well as use active cooling. Failure to take precautions will result in your board burning up or shutting down due to heat issues.

    I was able to OC up to 3.6Ghz (450x8) using an 8x multiplier (Again, with watercooling...), but I didn't spend much time tinkering with the 8x multi (and I forgot to record my voltages and specs....) because I went on to a new setup to test...

    If you have a Q6600 G0, then you may be able to hit higher speeds with air, but be very careful to watch your voltages and temps. Don't go too high on either one...

    Anyway, your best bet is to take things VERY slowly, only increasing things a little bit at a time.

    Hope this helps...
  6. I have a watercooled system, here is my settings
    ExtClk =396Mhz
    PCIEClk =100mhz
    Vcore =1.6050
    DDR2 =2.250
    MCH 1.25v =1.33
    ICHO 1.5v =1.55
    CPU VTT =1.20
    DDR2 REF =0%
    ICH 1.05v =1.09

    I am trying to get it past the 400 mark =)
  7. hi,

    my rig is working fine with 400*8 on stock voltage and memory is 1:1 (otherwise it doesnt boot up)
    i'm trying to get my system to work on 500*6 to enjoy the benefits of the 1066 ram 1:1 but it gets to its knees before the post screen.
    any idea?

    Full config: C2Q6600(1,285V) + Abit IP35Pro + 4GB OCZ PC2-8500 Platinum(2,2V) + OCZ StealthXStream 500W PSU
  8. i have some probs to set bus speed higher than 370(x9). 371 gives a bluescreen. I tried many different combinations of voltages but i get always doubleboot and/or bluescreen. Settings atm which works:

    Bus speed 370
    Core V 1.4050
    Cpu vtt. 1.23
    Ddr2 V. 2.1
    Ich 1.25
    Ichio 1.55
    Ddr2 ref 0%
    0&2 1&3 both 67%
    = 3333 MHz

    I kno ppl who can set bus speed up to 500 -> 4 GHz with same components like i have. Im damn disappointed if 370 is limit of my processor.

    I rly dunno when to use 1:1, 1:1.20 or 1.25. I can see that changing bus speed changes ddr2 mhz, and i dunno is there max value i should not exeed.
    Q6600 go. Abit IP35 Pro. Tuniq Tower 120. Corsair Dominator 2 Gb. Corsair TX850 W. Coolermaster 932 HAF.
  9. for stability, the 1:1 setting is recommended however not a must. try my settings:

    ram 1:1 -->800mhz

    it's stable for me with stock voltages and stock cooler. try to go up with the fsb from this point, because your memory is able to run at 1066mhz.
    my ultimate goal is 500*8 after a cooler upgrade:P
  10. I set the multiplier to 8x and step by step bus speed up to 400. 410 caused bluescreen. Then i added more V also by small steps up to 1.4850V. All the way from default to 1.4850 i got bluescreen. I also set more V to bridges. That didnt help. I also set dram to 1:1 (776 MHz). I tried also other dividers. It works fine with 400x8/1:1/1.3250V as it was with my previous settings (370x9/default(DDR2-1110)/1.4050V) but i notized z-cpu showed 1.3650-1.3750V. Is that the vdoop? Coretemp showed lower bus speed and processor speed. Caused cuz of vdroop? Man this has been rocket science to me so far. Should i assume that i found the limits of my processor?
  11. tell me your voltages, and temps (cores, system, pwm as well)
    yeah, the voltage change is because of vdroop but coretemp tells wrong speed to me though.

    i managed to start windows with these settings but prime95 fails in the first minute.
    8x430mhz (3440mhz)
    memory 1:1.25 = 1075mhz
    vCore is on 1,5 (cpu-z shows 1,41)
    vDDR is on 2,2 (ocz platinum 1066 ram)
    cpu vtt is on 1,35
    mch 1,25 is on 1,41
    icho 1,5 is on 1,55

    idle temps are 42,42,43,42 on the cores and 56 on the PWM.

    anyway i read that we should change the termal compound on the chipset cooling, because if the pwm gets too hot it affects the stability. mine above 70 C under torture...

    i applied a fan on the PMW and set the vCore to 1,54 (in cpuz it's 1,45) and it's stable for 5 mins.

    the q6600 theoretically good up to 1,5V so which is important, the bios setting or the cpu-z value?
  12. Processor and gc are amazingly cool eventho im playing at this moment Farcry2 with highest graphics. I have played now 3-4 hrs and also Lost Planet and Enemy Territory. But the corner in my room where my computer is is quite cool place. Stone wall and floor.

    Here's informations from Everest. Coretemp shows almost same temperatures.

    Motherboard 23 °C (73 °F)
    CPU 25 °C (77 °F)
    CPU #1 / Core #1 32 °C (90 °F)
    CPU #1 / Core #2 36 °C (97 °F)
    CPU #1 / Core #3 28 °C (82 °F)
    CPU #1 / Core #4 30 °C (86 °F)
    PWM1 35 °C (95 °F)
    GPU1: GPU 51 °C (124 °F)
    GPU1: GPU Ambient 41 °C (106 °F)
    GPU1: GPU VRM 38 °C (100 °F)
    GPU2: GPU 49 °C (120 °F)
    GPU2: GPU Memory 41 °C (106 °F)
    GPU2: GPU Ambient 42 °C (108 °F)
    GPU2: GPU VRM 38 °C (100 °F)

    Cooling Fans
    CPU 2040 RPM
    GPU2 2177 RPM (41%)

    Voltage Values
    CPU Core 1.37 V (set in bios to 1.3850)
    +1.5 V 1.50 V
    +3.3 V 3.32 V
    +5 V 5.07 V
    +12 V 11.94 V
    +12 V 8-pin 11.94 V
    +5 V Standby 5.13 V
    CPU VTT 1.19 V
    North Bridge Core 1.25 V
    South Bridge Core 1.05 V
    DIMM 2.10 V (Corsair Dominator CM2X1024-8500C5D DDR2 SDRAM 5-5-5-18 @ 400 MHz)
    DIMM VTT 1.04 V
    GPU1: GPU VRM 1.04 V
    GPU2: GPU Vcc 3.26 V
    GPU2: GPU VRM 1.04 V

    Current Values
    GPU1: GPU VRM 4.35 A
    GPU2: GPU VRM 3.63 A

    CPU Clock 3333.2 MHz (original: 2400 MHz, overclock: 39%)
    CPU Multiplier 9x
    CPU FSB 370.0 MHz (original: 266 MHz, overclock: 39%)
    Memory Bus 555.0 MHz
    DRAM:FSB Ratio 12:8
  13. i found something in the C2Q and C2D overclock guide regarding the fsb:

    Here are some rough guidelines for setting your VTT:

    1.2-1.3V - for a FSB of ~400 MHz.
    1.4-1.5V – for a FSB of ~420-440 MHz (exceed 1.4V at your own risk with a 45nm chip)!
    1.6V – for a FSB of ~440-475 MHz - use at your own risk with a 45nm chip!
  14. Im now a bit confused... i see only two options on the list in bios to change cpu vtt and they are 1.20 and 1.23. So is there some other way to set it higher or is it really max 1.23V on my mobo?

    A question: I saw a list to set higher speed of processor using core voltages. It said something like that:

    x.xx V = 3.0MHz
    x.yy V = 3.1MHz
    x.yz V = 3.2MHz

    etc up to 3.9MHz

    When I set more voltages the processor speed stays at the same value. Only way i can set higher processor speed is to set more fsb. I maybe misunderstood something or then my knowledgement is just too low.

    EDIT: I find out how to get higher cpuvtt. I needed to set higher MCH to get more options on cpuvtt list.
  15. i see, i didn't know that as well i was wondering where are the rest of the options.

    for mch voltage, you can start low, and if necessary set higher values like 1,41.
    sorry for slow response, but don't have much time nowadays, even for my own tuning :S
  16. BUMP

    Old thread but need to find out something new, if there is anything, cuz this oc'ing is again topical. I set back default settings after the attempts when we discussed bout these settings on the topic. Atm Im trying to get my comp stabe what seems to be difficult. Again.

    So anything new about Q6600/Abit IP35 oc'ing to share?:)
  17. hi,

    after 4-5 months of usage, mine is game stable. i mean the only error i have seen was in prime95 it works flawlessly apart of that. what is the highest OC you can reach on what values?
  18. m0bzt3r said:
    Im now a bit confused... i see only two options on the list in bios to change cpu vtt and they are 1.20 and 1.23. So is there some other way to set it higher or is it really max 1.23V on my mobo?

    this one baffled me for several weeks, if you go into your OC settings dialog in bios, as you have stated, vtt cannot be set above 1.23v, HOWEVER; if you go back up and set ALL VOLTAGES to AUTO (set voltage control section to auto configure instead of user-define), then change back to user define, you can now set vtt to much higher values (upto ~1.7v).

    Now if you set one of these values it seems to load back up at a higher value than 1.23, but still not always what you specified (i set mine to 1.35 and it was 1.27 on reboot).

    I don't really know the significance of all this as I've never been in a situation that required changing vtt to make stable on my cpu.
    if anyone could cast some light on these seemingly random bios values, I would be very grateful, along with I'm sure, every other enthusiast trying to squeeze another year out of the kentsfield/p35 combo!
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