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  1. #1
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    Q-Fan Control - optimal settings for 4790(K) / 4460and others

    Hi there !

    I´ve put a 4790K into my G20AJ, downclocked to 4Ghz, undervolted ~ -70mV, which seems to be stable.
    (Turbo Boost Short disabled)
    (Intel Extreme Tuning Utility)

    I´ve xperimented a lot with the Q-Fan Control settings in BIOS. Here are my actual values (for both fans):

    20C -- 15%
    55C -- 30%
    70C -- 70%

    As a result fan speed is about 27% in regular working mode, packaging temp somewhere at 50C quiet stable.
    Starting a download meanwhile results in ~ 10-15% CPU Load and leads to ~ 30-35% fan speed on 55-60C, which is acceptable for some time here and there.
    Stress testing leads to stable ~70C at 67-70% fan speed.

    Well, for now it is the best I can find. But I would be interested in your settings especially on the 4790 / K but also any other CPU for the others here. When I got my unit with a 4460 the fan settings had been horrible in comparison.... The last settings I had with the 4460 were:
    30C -- 10%
    55C -- 25%
    70C -- 40%

    That was quiet nice for regular working but I had not finished testing on high cpu load, also not undervolted. Maybe you want to try it out. I finished with the 4460. (btw selling mine, if you are interested, let me know)

  2. #2
    ROG Guru: Yellow Belt Array a100 PC Specs
    a100 PC Specs
    MotherboardH97 Asus
    ProcessorIntel i7-4790 3.6GHZ
    Memory (part number)16GB
    Graphics Card #1Zotac GTX980Ti Reference OC`d GPU: +210MHZ - Memory: +300MHZ
    Sound CardOn board
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    Have you felt any performance changes by upgrading to 4790K on G20?

  3. #3
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    Yes, a lot lot lot. It was worth it 100%, an least for me.

    AC Unity got a very nice boost, the 4460 limited gpu power.

  4. #4
    ROG Guru: Yellow Belt Array a100 PC Specs
    a100 PC Specs
    MotherboardH97 Asus
    ProcessorIntel i7-4790 3.6GHZ
    Memory (part number)16GB
    Graphics Card #1Zotac GTX980Ti Reference OC`d GPU: +210MHZ - Memory: +300MHZ
    Sound CardOn board
    MonitorBenQ XL2430T Gaming LED Monitor
    Storage #1Samsung Evo Pro 850 512G SSD
    CPU CoolerRog Dual Fan
    CaseG20AJ
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    Hmm so we can overclock CPU on G20 after all.

    Could you plz write a detailed way of doing it, I have 0 experience in overclocking cpu`s.

    How you did it? which software? and .. tnx

  5. #5
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    Oh I don´t overclock, just undervolt.

  6. #6
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    Quote Originally Posted by Paul.Jandali View Post
    Hi there !

    I´ve put a 4790K into my G20AJ, downclocked to 4Ghz, undervolted ~ -70mV, which seems to be stable.
    (Turbo Boost Short disabled)
    (Intel Extreme Tuning Utility)

    I´ve xperimented a lot with the Q-Fan Control settings in BIOS. Here are my actual values (for both fans):

    20C -- 15%
    55C -- 30%
    70C -- 70%

    As a result fan speed is about 27% in regular working mode, packaging temp somewhere at 50C quiet stable.
    Starting a download meanwhile results in ~ 10-15% CPU Load and leads to ~ 30-35% fan speed on 55-60C, which is acceptable for some time here and there.
    Stress testing leads to stable ~70C at 67-70% fan speed.

    Well, for now it is the best I can find. But I would be interested in your settings especially on the 4790 / K but also any other CPU for the others here. When I got my unit with a 4460 the fan settings had been horrible in comparison.... The last settings I had with the 4460 were:
    30C -- 10%
    55C -- 25%
    70C -- 40%

    That was quiet nice for regular working but I had not finished testing on high cpu load, also not undervolted. Maybe you want to try it out. I finished with the 4460. (btw selling mine, if you are interested, let me know)
    How did you manually does this in the BIOS? I was just in there and didn't see any option, while I did see a FAN section to monitor and below it a couple of other options, none where for selecting different temps and speed as far as I could tell. I have the i5 with the 760 dont know if that makes a difference.

  7. #7
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    Quote Originally Posted by Gotallofthem View Post
    How did you manually does this in the BIOS? I was just in there and didn't see any option, while I did see a FAN section to monitor and below it a couple of other options, none where for selecting different temps and speed as far as I could tell. I have the i5 with the 760 dont know if that makes a difference.
    On top of the monitor tab you will find an option to check optimal fan speeds or something like that.
    Run it and afterwards Q-Fan Control will grant access to those (mentioned) values.

  8. #8
    ROG Guru: Yellow Belt Array a100 PC Specs
    a100 PC Specs
    MotherboardH97 Asus
    ProcessorIntel i7-4790 3.6GHZ
    Memory (part number)16GB
    Graphics Card #1Zotac GTX980Ti Reference OC`d GPU: +210MHZ - Memory: +300MHZ
    Sound CardOn board
    MonitorBenQ XL2430T Gaming LED Monitor
    Storage #1Samsung Evo Pro 850 512G SSD
    CPU CoolerRog Dual Fan
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    Whats that undervolting for? whats the effect?

    Sorry I`m completely lost in CPU tuning.

  9. #9
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    Easy, it reduces power consumption, temperatures and therefore might help in reducing the fan noises.

  10. #10
    ROG Guru: Black Belt Array Korth PC Specs
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    My approach is to run the fans up a lot more aggressively, 50% at 40C, 75% at 50C, 100% > 60C. My logic is that the faster temps get brought down the smoother the parts will run, most peak loads occur in bursts anyhow, and I don't ever want sustained peak loads to get throttled. Having very quiet and efficient fans helps a lot, lol.

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