PS3 Webman Mod No Fan

Discussion in 'General PS3 Discussion' started by KevinF, Aug 17, 2019.

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    KevinF

    KevinF Member

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    could someone give me an explanation why it is not possible to completely turn off the fan on ps3? (0%) Any ps3 no matter the model when it is turned on, always speeds up a little like 20%, really there's no code that stops fan operation? just for curiosity...
     
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    atreyu187

    atreyu187 Retired Old Hunter Moderator

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    Because your console will over heat and break down. Kinda common sense. Turn off the fan in your PC or car and it dies. Same thing for your PS3.
     
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    Naked_Snake1995

    Naked_Snake1995 Senior Member

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    Want to run it at 0%, dissconnect the fan,and go buy another PlayStation3, because you´ll need it.

    Seriously,what kind of silly question is that lad? Can you run any high thermal output device without a fan?
     
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    sandungas

    sandungas Moderator Developer

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    Is for safety reasons, in iris there is a minimal limit for speeds too
    In this screen, if you try to reduce the speed values there is a point where it doesnt allows you to reduce them more
    [​IMG]
     
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    KevinF

    KevinF Member

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    I don't think it would be a problem to turn it off for about 10-15 seconds, things aren't that instant so, like you turned it off, burned out in the same second, because in the xmb menu the fan doesn't react right it's around 20 25% always
     
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    KevinF

    KevinF Member

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    I understand that perfectly but tell me if I want to shut down, is there a way to break the protection code and turn off the fan via software?
     
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    pinky

    pinky Bitsiboo's Other Half Developer

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    not sure about the ps3, but the 360 is liable to overheat after only two minutes (or less) if you unhook the fan. the ps3 is probably comparable.
     
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    KevinF

    KevinF Member

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    and is it possible to unlock it on ps3?(via software) that's what i want to know..
     
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    pinky

    pinky Bitsiboo's Other Half Developer

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    it would be a hardware issue. unhooking the fan will cause damage to the system. if the fan is too loud, try using surround sound speakers or a headset
     
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    sandungas

    sandungas Moderator Developer

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    The PS3 gets hot very fast in a matter of seconds if you stop the fan, is dangerous

    The fan control softwares uses a syscall, and i guess the values you can use in that syscall are not restricted, the protection is in the homebrew code
    So i guess you can remove that restriction in the source code and compile it
     
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    pinky

    pinky Bitsiboo's Other Half Developer

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    the ps3 should shut down if it gets too hot, but you can still damage the system by letting it get like that.
     
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    KevinF

    KevinF Member

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    That's what I was saying, could you tell me where this is located in the code? maybe fancontrol1 / 2.h? or just aldostools would know the correct place?
     
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    aldostools

    aldostools Developer Developer

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    On my post of July 25th I already told you where to make the changes, and you liked that post:
    https://www.psx-place.com/threads/webman-mod-fan-questions.25394/page-2#post-195823


     
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    KevinF

    KevinF Member

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    aldostools

    aldostools Developer Developer

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    If your question is if your system will be cool again a few seconds after you shutdown, the short answer is no.

    When you turn on the console, the components will be at room temperature (e.g. 26°C). While you use the console, the CPU/RSX processors will radiate heat and the temperature will go up rapidly. The fans will move the hot air outside to dissipate the heat; cool air from the room will enter. While faster is the fan, faster will be the air flow cycle resulting in a reduction of temperature until it gets stable.

    If you turn off the console, the air flow from the fans will stop and components will radiate the temperature to the room slowly until all the heat is transferred to the point of room temperature. You can accelerate the cooling of the internal components with external fans or air conditioner, but the heat will still take some minutes. Indeed, if you cool them too fast (e.g. with liquid nitrogen) the components could crack due the expansion/contraction of the materials caused by temperature (e.g. solder joints).

    I suggest you read a bit about thermodynamics ;) Here is an easy start:
    https://www.brighthubengineering.com/hvac/5231-what-is-heat-transfer/
     
    Last edited: Aug 17, 2019
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    Coro

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    most likely the lowest "setting" for the fan is ultimately represented by all zeroes in memory. since going below zero isnt possible you cant turn it off.
     
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    KevinF

    KevinF Member

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    KevinF

    KevinF Member

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    sandungas said: The fan control softwares uses a syscall, and i guess the values you can use in that syscall are not restricted, the protection is in the homebrew code
    So i guess you can remove that restriction in the source code and compile it
     
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    psykosis

    psykosis Developer Developer

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    You can technically do it, but it's honestly one of the dumbest ideas i've ever heard someone want to do to a ps3.

    I mean, if you REALLY WANT to destroy your ps3, you can just run it over with your car, put explosives in it, light it on fire, take it swimming with you, or just beat it with a hammer.

    There is a reason submarines don't have screen doors....
     
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    pinky

    pinky Bitsiboo's Other Half Developer

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    don't do it, my friend. like I said, if noise is the problem, use speakers or a headset.
     
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