GeForce 9600 GT, and lower fan speed when system booting? - 2008/06/06 21:20Hi, I've got a Zotac GeForce 9600 GT AMP! edition and when booting, before Windows loads drivers, fan speed is very high. Opening BIOS with NiBiTor it says 100% fan speed, after drivers are loaded they regulate fan speed to an acceptable rotation, from 45% at idle to +60% under load according to nTune. My question is, if modifying the BIOS fan speed from 100% to 50% this will affect fan speed rotation at boot time an if it will also affect fan speed after drivers are loaded. Regards...
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Mavke
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Re:GeForce 9600 GT, and lower fan speed when system booting? - 2008/06/06 22:05Euhm, can you explain what you really want to get at as I don't really understand now what your actual question is all about. Currently with NiBiTor the fan speed of all new graphics cards since the GeForce 8 series is at 100%, though there is an other fan speed control function that we have not yet enabled for the GeForce 9 series, that it is for the GeForce 8 series and that is because we are still working in it. So lowering the fan speed where you see the 100% should have an impact but the final fan speed rotation in controlled depending on temperature normally.
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cigolo
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Re:GeForce 9600 GT, and lower fan speed when system booting? - 2008/06/07 01:18When I press power button to startup my PC the fan runs at full speed until Windows boots and loads drivers, after that fan speed is auto controlled. My question is, if with NiBiTor I change fan speed from 100% to 50% when PC boots, until Windows and the ForceWare drivers are loaded and regulate fan speed and the video card fans will run at 50%?
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DarkFox
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Re:GeForce 9600 GT, and lower fan speed when system booting? - 2008/06/07 05:14If the driver is overriding the BIOS settings normally, then I doubt changing them with NiBiTor will make a difference at all. It may make your PC boot up quieter when the fan speed change via the BIOS works.
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Mavke
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Re:GeForce 9600 GT, and lower fan speed when system booting? - 2008/06/07 11:42cigolo wrote: My question is, if with NiBiTor I change fan speed from 100% to 50% when PC boots, until Windows and the ForceWare drivers are loaded and regulate fan speed and the video card fans will run at 50%? What you can try is to set the fan speed in NiBiTor to 50% and see what it gives. Although this is only one aspect of the fan speed settings as the second item that is currently not yet unlocked in NiBiTor is the dynamic fan speed control which is read by the drivers and used as such. So the drivers are not doing any override, they just read the second logic to know how the fan speed should be controlled once you are in Windows.
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DarkFox
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Re:GeForce 9600 GT, and lower fan speed when system booting? - 2008/06/07 13:59Mavke wrote:So the drivers are not doing any override, they just read the second logic to know how the fan speed should be controlled once you are in Windows. Ah so that's how it works. Well quite honestly I can't wait till I can change both. Why doesn't the BIOS simply default to the secondary system and slow down the fan a few seconds after power on like it does on other cards like the GeForce 8800 GTS? Having the fan run at 100% until the driver kicks in doesn't sound reasonable to me, there's no point.
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Mavke
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Re:GeForce 9600 GT, and lower fan speed when system booting? - 2008/06/07 14:05DarkFox wrote: Ah so that's how it works. Well quite honestly I can't wait till I can change both. Why doesn't the BIOS simply default to the secondary system and slow down the fan a few seconds after power on like it does on other cards like the GeForce 8800 GTS? Having the fan run at 100% until the driver kicks in doesn't sound reasonable to me, there's no point. I hate it but I will need to correct you cause all the GeForce 8 series actually have this already. Meaning that there are two tables to control the fan speed, one that will just set the maximum level which is mostly 100% and the second one which will lower it again and dynamic let it go up and down depending on the temperature. And that is still controlled by the BIOS though can only work when the drivers are loaded...
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DarkFox
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Re:GeForce 9600 GT, and lower fan speed when system booting? - 2008/06/07 14:18Don't hate correcting me, if you don't then I'll never be right. I'm simply going off experience. My dad's G92 based GeForce 8800 GTS slows down long before the drivers are loaded. In fact, it happens when the VGA BIOS is first initialised.
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Mavke
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Re:GeForce 9600 GT, and lower fan speed when system booting? - 2008/06/13 21:31DarkFox wrote: Don't hate correcting me, if you don't then I'll never be right. I'm simply going off experience. My dad's G92 based GeForce 8800 GTS slows down long before the drivers are loaded. In fact, it happens when the VGA BIOS is first initialised. Well that could be but that is not always the case it depends somehow on the fan speed settings and how these are defined and we know that in quite some the setting is done in a different way for whatever reasons and the fan is running very fast a bootup and afterwards goes to what is defined.This all has to do with the fixed, versus automatic and dynamic fan speed setting.
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DarkFox
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Re:GeForce 9600 GT, and lower fan speed when system booting? - 2008/06/14 03:19Well it is certainly a lot better than having to wait for the drivers to start before I get rid of the deafening noise of the fan. Thanks for the extra information.
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ASUS 8800GT PCIe 512MB - Rev 04
