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#1 2013-05-01 20:44:05

Enverex
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From: UK
Registered: 2007-06-13
Posts: 117
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nVidia Card Fan Speed

I've just upgraded from the on-board HD4000 to an MSI nVidia GTX 650 in a new build of mine and everything went fine apart from the fact the fan, once the nVidia driver loads, appears to stick at 100% and as you can imagine that's very loud (it's purely wind noise, it's not hitting anything).

Has anyone encountered this before? The graphics card in nVidia Tools states the core is around 19'c so it's clearly not hot. It's like the moment the nVidia driver is loaded, it just maxes the fan and stays there for no reason.

Driver is the latest, 313.30-5.

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#2 2013-05-11 23:46:22

Enverex
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From: UK
Registered: 2007-06-13
Posts: 117
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Re: nVidia Card Fan Speed

Bump. This is driving me mental, its turning what should be a quiet machine into a hair-dryer!

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#3 2013-05-12 09:45:06

graysky
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From: /run/user/1000
Registered: 2008-12-01
Posts: 8,444
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Re: nVidia Card Fan Speed

nvidia-smi?  ...have you bothered to search for a solution on your own?

Last edited by graysky (2013-05-12 09:45:49)


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#4 2013-05-12 10:43:55

Enverex
Member
From: UK
Registered: 2007-06-13
Posts: 117
Website

Re: nVidia Card Fan Speed

graysky wrote:

nvidia-smi?  ...have you bothered to search for a solution on your own?

Thanks for the vote of confidence there. Yes, I have. In fact I've spent solid HOURS looking for a solution to this problem. The only thing I've found similar is people with old 8000 series cards with the same issue.

For reference I cross posted this on the official nVidia forums with their debug dump attached - https://devtalk.nvidia.com/default/topi … d-at-100-/

nVidia SMI output is below.

arcade@jasper ~ $ nvidia-smi
Sun May 12 11:39:51 2013
+------------------------------------------------------+
| NVIDIA-SMI 5.319.17   Driver Version: 319.17         |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 650     Off  | 0000:01:00.0     N/A |                  N/A |
| 40%   17C  N/A     N/A /  N/A |       38MB /  1023MB |     N/A      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Compute processes:                                               GPU Memory |
|  GPU       PID  Process name                                     Usage      |
|=============================================================================|
|    0            Not Supported                                               |
+-----------------------------------------------------------------------------+

You can't set the fan speed inside nVidia settings, it simply reverts when you hit apply. You can't set it with nvclock as it says it isn't supported.

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#5 2013-05-12 10:54:56

graysky
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From: /run/user/1000
Registered: 2008-12-01
Posts: 8,444
Website

Re: nVidia Card Fan Speed

I haven't ran an nvidia card it a long time; the nvidia-smi output you posted shows 40 % not 100 %.  Does it scale as you increase gpu load?


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#6 2013-05-12 11:00:49

Enverex
Member
From: UK
Registered: 2007-06-13
Posts: 117
Website

Re: nVidia Card Fan Speed

That value is false, the fan is clearly running at 100%. The fan speed doesn't change at all once the nVidia driver has loaded. If the temperature of the GPU rises then that value rises too, but the actual fan speed doesn't change as it's already maxed out.

On boot the GPU fan seems to run at about 80% and then slowly drop to 50% or so on it's own (for example if I sit in the BIOS or at the GRUB prompt). Then, once Linux boots and the nVidia driver loads, the fan suddenly ramps up louder than it is even when the machine is first turned on, and stays there.

Trying to set it manually with nvidia-settings on the command line fails with this:

ERROR: Error assigning value 20 to attribute 'GPUCurrentFanSpeed' (jasper:0[fan:0]) as specified in assignment '[fan:0]/GPUCurrentFanSpeed=20' (Unknown Error).

Which I assume is why the value reverts in nvidia-settings when you hit apply, but you can't see the error message in the GUI.

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