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Old 01-06-08, 08:37 AM   #85
Thunderbird
 
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

The 8800GT (and other highend cards like the 7800/7900 and the other 8800 cards) contain a ADT7473 chip. This chip is a temperature sensor (though nvidia-settings doesn't read it out, it only reads out the bad internal sensor) but it is also an advanced fanspeed controller.

The fanspeed controller can be programmed in various ways. First of you can set it to a fixed fanspeed and control it from software if you want but this is possible for other basic fanspeed controllers too. Its advanced features lie in its automatic fanspeed mode. In this mode you can specify temperature thresholds and a factor for which to bump up the fanspeed if the temperature increases. (It is even more detailed than this). The default parameters are in the bios and apparently nvidia overrides them. I can add functionality to set all these parameters but I can't test it at all.
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Old 01-06-08, 05:01 PM   #86
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

when set to auto my fan speeds are at 35% (1953 rpm) under normal operating conditions which is just fine for me since its not loud. in windows i get fan speeds of about 29% so its not that much higher. But as others have mentioned before, if you want more silence I would just recommend getting an after market cooler for the gpu. But hopefully the next driver version will be out soon.
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Old 01-07-08, 01:36 PM   #87
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

Quote:
Originally Posted by Thunderbird
In this mode you can specify temperature thresholds and a factor for which to bump up the fanspeed if the temperature increases. (It is even more detailed than this). The default parameters are in the bios and apparently nvidia overrides them. I can add functionality to set all these parameters but I can't test it at all.
Yes please do. This would be great. I would be a willing guinea pig as I don't think nvidia even though they have identified the bug are not going to release a new driver until their pre-scheduled dates (which is typically 4-6 months). Even if they did bring out a update it would probably be marked as beta and linux distributions usually don't include beta Nvidia drivers in their repositories, they tend to wait for official releases.
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Old 01-08-08, 11:19 PM   #88
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

Same her

OS: Ubuntu 7.10 64 bit
Driver: 169.07
Card: 8800 GTS 512
CPU: Q6600
Board: Gigabyte P35 DS4
4 GB DDR2

Message from Nvclock:

root@pwControl:~# nvclock -f -F 50
Error: Your card doesn't support fanspeed adjustments!

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Old 01-09-08, 12:50 PM   #89
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

Most likely you are not using nvclock 0.8 beta3, make sure it is really that version.
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Old 01-09-08, 02:50 PM   #90
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

This is the output of my nvclock -i:

-- General info --
Card: nVidia Geforce 8400M GT
Architecture: G86 A2
PCI id: 0x426
GPU clock: 182.248 MHz
Bustype: PCI-Express

-- Shader info --
Clock: 594.000 MHz
Stream units: 16 (1b)
ROP units: 8 (1b)
-- Memory info --
Amount: 256 MB
Type: 128 bit DDR3
Clock: 601.712 MHz

-- PCI-Express info --
Current Rate: 16X
Maximum rate: 16X

-- Sensor info --
Sensor: GPU Internal Sensor
GPU temperature: 48C

and this the output of my nvcolck -f -F auto:

Error: Your card doesn't support fanspeed adjustments!

i use nvcolck 0.8beta3 and driver 169.07

Why i can adjust my fun speed?
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Old 01-09-08, 03:05 PM   #91
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

I haven't this problem on a 8600M GT...
The 100% fan problem is related to GPU usage?
Fan goes to 100% due to the GPU usage/temperature?
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Old 01-09-08, 11:36 PM   #92
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

Quote:
Originally Posted by Thunderbird
Most likely you are not using nvclock 0.8 beta3, make sure it is really that version.
works......thx
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Old 01-10-08, 09:43 AM   #93
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

My Nvidia-setting:



My nvclock:



How can it's possible?.......(I know 256Mb is right!)
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Old 01-10-08, 09:53 AM   #94
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

That's quite easy actually. Your card has 256MB of dedicated video memory but it also contains what Nvidia called 'TurboCache' (in AGP times, this was just a default AGP feature; AGP aperture stuff). This TurboCache allows the videocard when it doesn't have enough memory to use system memory without asking the cpu for it.

Nvidia, ATI and others use Turbocache/Hypermemory for marketing purposes. In lots of cases the videocards show on the box then e.g. 512MB which is then for instance 256 MB video memory + 256MB system memory.
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Old 01-10-08, 11:08 AM   #95
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

Quote:
Originally Posted by Thunderbird
That's quite easy actually. Your card has 256MB of dedicated video memory but it also contains what Nvidia called 'TurboCache' (in AGP times, this was just a default AGP feature; AGP aperture stuff). This TurboCache allows the videocard when it doesn't have enough memory to use system memory without asking the cpu for it.

Nvidia, ATI and others use Turbocache/Hypermemory for marketing purposes. In lots of cases the videocards show on the box then e.g. 512MB which is then for instance 256 MB video memory + 256MB system memory.
my 8600GT can handle up to 1Gb in turbocache mode but nvidia drivers tell me 512Mb
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Old 01-10-08, 04:19 PM   #96
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Default Re: 169.07 Ubuntu 7.10 Fan at %100

The amount of 'turbocache' of addressable turbocache for some cards depends on the amount of system memory. The manual of the card mentions how it scales.

Second for midend-highend desktop cards with turbocache the feature is 'useless' (not that useless, it is still useful for transferring data from memory to the gpu which is always done) but it should rarely get used for real purposes. Turbocache is mainly marketed on lowend cards which have small memory busses and not much and fast video memory. For those system memory isn't that slow.
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